US20130272905A1

US20130272905A1 - Device for transferring energy between two fluids

Info

Publication number: US20130272905A1
Application number: US13/824,388
Authority: US
Inventors: Dattatraya Rajaram Shelke
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-29
Filing date: 2011-09-02
Publication date: 2013-10-17
Also published as: WO2012042533A3; WO2012042533A2; EP2622223A2; CA2812879A1; CN103140680A

Abstract

Device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other is provided. The device comprises: an elongate central body (44) with a profiled cavity (37, 38) on either side having a respective fluid passage (45,46); a pair of composite outer bodies having a respective fluid in/out passage (35, 36) for fluid communication via a flow diverter valve assembly (15); a pair of assembly of moveable chambers fixed on either side of said central body, disposed inside the composite outer bodies; guiding and connecting means (25, 26) passing through inner annular end plates (47, 48) of composite outer bodies for reciprocating said moveable chambers; wherein said flow diverter valve assembly (15) alternatively diverts the direction of the movement of said moveable chambers by diverting the flow direction of said fluids by actuation or pulses received on reaching respective end position on either side of said central body; and flow directing valves for alternatively directing the flow direction of the other fluid to/from respective moveable chambers via said fluid passages.

Description

This complete specification claims priority from the Indian patent application Nos. 2704/MUM/2010, 2799/MUM/2010, 404/MUM/2011, and 1377/MUM/2011.
This patent application is a further improvement of the inventions disclosed in the above mentioned patent applications.
The subject matter disclosed and claimed herein constitutes a single invention concept based on all above patent applications and included in this complete specification.
The disclosures of all these patent applications are incorporated as reference, for defining the scope of the present invention.

FIELD OF THE INVENTION

The present invention relates to a device for transferring energy between a driving fluid and a driven fluid with high efficiency and without contacting or mixing.
The device utilizes the energy of driving fluid to increase the pressure of the driven fluid in order to pump it. The driving fluid and driven fluid may be similar or dissimilar fluids.

PRIOR ART

The available prior art devices for increasing the pressure of fluids, such as—pumps or intensifies, are mostly powered by electric motors or fuel engines. The devices for pumping fluids which work without any fuel or electricity, such as—a hydraulic ram, use the energy of working fluid to pump the same fluid (generally water). However, these types of devices are unable to pump another fluid.
The prior art devices cannot pump large quantity of fluid available at lower heights by using the energy of small quantity high pressure fluid, e.g. by using small quantity water stored at heights in lakes/dams, large quantity water cannot be pumped, e.g. from river to the river bank with a high efficiency.
In the prior art devices, the pistons of different diameters housed in chambers/cylinders are connected by connecting rods to transfer energy from one fluid to the other, in order to increase the pressure.
Similarly, in diaphragm pumps, the diaphragms are interconnected by connecting rods passing through both the pumping chambers and a sealing is provided to avoid leakage of fluid from one of the chamber to the other. Such sealing arrangements or the like, need frequent maintenance and special lubrication system, because of which, these devices are less efficient and unsuitable for low, very low pressures and are thus expensive. Moreover, in operation of prior art devices, components like, piston, reciprocating assembly housing, pumping chambers, linking rod for connecting pistons or diaphragms, always come in contact with the working fluids, which causes contamination or mixing of fluids, which is unacceptable, particularly in pharmaceutical/chemical industry.
In the prior art devices, working fluids are not acting along the piston axis, causing loss of pressure or energy. Further, inlet and outlet pipes for fluid flow connected to these devices have abrupt openings and contractions, which also cause a loss of pressure or energy. Fluid driven hydraulic/pneumatic pumps transfer the energy of one of the fluid (e.g. air) to another fluid. However, none of the prior art devices teach or suggest a friction-free movement of reciprocating means for transferring energy of one working fluid to another with high efficiency.
U.S. Pat. No. 5,558,506, issued to John M. Simmons on Sep. 24, 1996 shows a pneumatically shifted reciprocating pump, actuated by air pressure, including reciprocating left and right bellows attached to fluid pumping pistons located in pumping chambers connected together by a connecting rod passing through both pumping chambers which needs special lubrication arrangement. [0009] This invention suggests use of Teflon or other soft material. Sealing or precise arrangement is needed for rod and its housing to avoid leakage, since connecting rod passes through pumping chambers at different pressure, this special arrangement increases cost of device and needs frequent maintenance. No means are provided for preventing ballooning, tilt and wobbling of bellows at high pressure. Bellows are connected to piston of same surface area, so intensification is impossible. The piston and connecting rods slidably move in the housing, causing friction and wear and tear.
Therefore, there was a long-felt need for a device to overcome these problems. As such, there is a need of a highly energy efficient and inexpensive device for transferring energy between the same or different fluids, without contacting or mixing with each other. The above problems and limitation of the prior art devices are successfully overcome by the present invention.

OBJECTS OF THE INVENTION

The invention is based on utilizing the potential (pressure) energy of one of the fluid to enable the pumping of another fluid with high pressure, i.e. the novel device utilizes the energy of the primary or driving fluid to increase the pressure of the secondary or driven fluid for pumping it with high efficiency, without contacting or mixing. However, these fluids may also be the same fluids.
A further object of the invention is to enable vertical and/or horizontal delivery of a driven fluid by optimally transferring the energy available in a driving fluid to the driven fluid.
A still further object of the present invention is to use the available line pressures as energy of a driving fluid by transferring at least a portion of the energy available in this driving fluid, to pump the same or a different fluid, which would have otherwise remained unutilized.

SUMMARY OF INVENTION

The device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other, the device comprising: an elongate central body with a profiled cavity on either side having a respective fluid passage; a pair of composite outer bodies having a respective fluid IN/OUT passage for fluid communication with IN line and OUT line of one of the fluids via a flow diverter valve assembly; a pair of assembly of moveable chambers, each fixed on either side of said central body and disposed inside respective composite body; a plurality of guiding and connecting means passing through a respective inner annular end plate of said composite outer body for connecting and reciprocating said pair of assembly of moveable chambers in a friction minimizing manner and disposed on either side of said central body; in which said flow diverter valve assembly alternatively diverts the direction of reciprocating motion of said pair of assembly of moveable chambers by diverting the flow direction of one of said fluids by means of actuation or pulses received on reaching the respective end positions on either side of said central body; and flow directing valves for alternatively switching the flow direction of the other fluid from its IN line to respective moveable chamber and from respective moveable chamber to an OUT line via said fluid passages of said central body.
Typically, the composite outer body comprises: a cylindrical outer body with flanges extending outwardly at each end and having fasteners, and at least partially conical outer end plate connected via said respective fluid passage at either outer end to said IN line or OUT line and having a flange at respective inner end, which is fastened on a respective flange of said cylindrical outer body for fixing a partition to form a respective moveable chamber on either side of said central body; an inner annular end plate closing the operative inner end of the respective composite body and fixed with its inner circumference on the outer surface of said elongate central body, said inner annular plate having a plurality of apertures for fixing a plurality of bearing means for the passage of said guiding and connecting means through the same.
Typically, the respective composite outer body surrounds a cylindrical inner body having flanges extending outwardly at either end, and an outer pot-like rigid body having a flat closed outer end and an annular flange extending outwardly at inner end; a respective inner annular diaphragm being fixed at its outer circumference between an outer flange of said cylindrical shell and inner annular flange of said pot-like body by fasteners, said inner annular diaphragm being fixed at its inner circumference under a respective annular plate on said central elongate body by fasteners to form a respective inner moveable chamber; a circular diaphragm being fixed at its outer circumference as said partition between an outer flange of respective cylindrical body and said flange of respective partially conical outer end plate; said circular diaphragm being centrally supported and fixed under fixing plates by fasteners outside the base of said outer pot-like body to form a respective outer moveable chamber.
Typically, the moveable chambers being a pair of assembly of outer bellows and inner bellows, each of said bellows having a flat closed end and an open end, said flat closed ends abutting on either side of a flat circular partition; said pair of assembly of bellows enclosed within said composite outer body disposed on either sides and moveable in a friction minimizing manner; said open ends of outer bellows having an annular portion extending outwardly and fixed as said partition between said flange of respective conical outer end plate and outer flange of respective cylindrical outer body, to form a respective outer chamber; said inner bellows having a respective cylindrical open end extending parallel to the axis of said assembly and fastened on the external circumference of said central body by fasteners to form a respective inner chamber; said bellows being provided with disc-like reinforcing means at regular intervals, having anti friction means on outer circumference abutting the inner circumference of respective cylindrical inner body at one end and supporting said bellows at inner circumference; said guiding and connecting means being supported on said flat circular partition and passing through a plurality of apertures provided in said disc-like reinforcing means of inner bellows.
Typically, a rigid inner cylindrical shell being disposed and moveable inside respective outer composite body, by abutting its extended base having anti friction sealing means on its outer circumference at one end and forming a respective outer moveable chamber with said conical outer end plate; the other annular end of said cylindrical shell being supported and moveable on said central body in a friction minimizing and sealing manner and forming a respective inner moveable chamber.
Typically, the device comprising: a central body with profiled inner cavities on either side, being connected by a respective fluid passage to an IN line 2 via driving fluid IN line and an OUT line; a respective cylindrical outer body disposed on either side of said central body, said cylindrical outer body having flanges at both ends and closed at outer end by a respective outer annular plate fitted with cylindrical bodies having a profiled conical cavity, closed at inner ends by a respective inner annular plate, said inner annular plate being also fixed at its inner circumference on said central body; a pair of composite inner bodies disposed on either side of said central body, each composite inner body respectively having an inner pot-like rigid body and an outer cylindrical shell, said pot-like body having a flanged end open towards said cylindrical shell and its base towards said central body; said outer cylindrical shell having flanges on either side, the inner flange abutting the flange of said pot-like body for fixing an outer annular diaphragm by fasteners to form a respective outer moveable chamber with a profiled conical cavity of respective cylindrical bodies, and having an outwardly extending outer flange; a pair of bracket like bellow supporting cylinders, each fixed on respective inner annular end plate by plurality of fasteners for fixing and supporting an inner circular diaphragm at its circumference, the middle portion of said diaphragm being supported and fixed by fasteners under fixing plates outside the base of said pot-like rigid body to form a respective inner moveable chamber; guiding and connecting means passing through said inner annular end plates and supported on bearing means for imparting friction-minimized reciprocating movement to said pair of assembly of moveable chambers; wherein, the driving fluid is directly supplied via a flow diverter valve assembly into one of the inner moveable chambers, in order to reciprocate the moveable assembly in one of the longitudinal direction of said assembly, said flow diverter valve assembly diverting said flow to the other inner moveable chamber on receiving actuation or pulses from the said pair of assembly of movable chambers on reaching a respective end position of said reciprocating movement of said assembly; a directing valve alternatively directing the flow direction of the other fluid from its IN line via driven fluid IN line to respective chamber and chamber to an OUT line from said profiled outer conical cavity, in order to facilitate said reciprocating movement of said pair of assembly of chambers in a reversed direction.
Typically, the flow diverter valve assembly comprises: a pilot operated ball-type 4-way large orifice valve, and a pulse operated flow diverter assembly, wherein, the pilot pressure is controlled by said pulse operated flow diverter assembly by means of actuation or pulses received on reaching the respective end position of said reciprocating movement of said pair of assembly of moveable chambers.
Typically, the pilot operated ball type 4-way valve comprises: an IN port D; an exhaust port; an IN-OUT port A, B disposed on either side; pilot ports; said ball type 4-way large orifice having IN chambers; Exhaust chambers; a pair of ball assemblies, each ball assembly having a pair of balls, each pair of balls fixed on respective freely movable and centrally guided rods which are centrally supported by a respective spring, and passing through either end of a lever and fixed on a respective diaphragm at one of the ends which is fixed at the other end of said rods, sandwiching between two rigid fixing plates; ball seats; and said lever being pivoted about a pivot.
Typically, the pulse operated diverter assembly comprises: a pair of 3-way valves; a 4-port floating piston valve; and a pair of non-return valves, said 3-way valves being disposed on either of said 4-port floating piston valve, wherein each of said 3-way valves having an intermediate chamber connected to an IN port of said 4-way floating piston valve via an OUT port, a respective outer chamber axially disposed on either side of said intermediate chamber and connected via an exhaust port to a common exhaust port, a respective inner chamber axially connected to each other and to a common IN line via an IN port; and an axially moveable plunger with a profiled portion having a plunger tail, a middle body supported at one end by a spring fixed on it by a fixing disc and having a flange at its other end, and sealing means surrounding said profiled portion, further wherein said 4-port floating piston valve comprises a flat floating piston having axial cylindrical projections with sealing means, said piston reciprocating within a 4-port cylindrical chamber having two axial IN ports and two radial OUT ports; said IN ports alternatively connecting a common IN line via said respective 3-way valve to a pilot port of said pilot operated ball type 4-way valve via one of said OUT ports by positioning of said floating piston on either side of said 4-port cylindrical chamber at respective ends thereof.
Typically, the non-return valves comprises: three chambers formed by two partitions, a pilot port, an IN port and an OUT port, a poppet valve having a stem with a poppet fixed at one end and a diaphragm attached in the middle and fixed at the other end, both fixed by fasteners, said diaphragm biased by means of a spring for directing fluid flow in one direction to connect said pilot port to said IN port.
Typically, the flow diverter valve assembly comprises: a pilot operated ball-type 4-way valve, and a pulse operated flow diverter assembly having a pair of 3-way valves and a 5-port floating piston valve; said 3-way valves being disposed on two opposite sides of said 5-port floating piston valve, which comprises a floating piston with a circumferential groove in the middle, reciprocating within a 5-port cylindrical chamber having two axial IN ports and two radial OUT ports and an exhaust port and said exhaust port alternatively in fluid communication with one of the OUT port.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows schematic view of a first embodiment of the present invention in which, the device for transferring energy from large quantity fluid at low pressure (e.g. rain water collected on top of buildings) to low quantity fluid to increase its pressure (e.g. to pump tap water to a reservoir located above the terrace [top] from base reservoir) includes moveable chambers partitioned by means of a plurality of pairs of diaphragms.

FIG. 2 shows schematic view of the second embodiment of the present invention in which the device for transferring energy from low quantity fluid at high pressure (e.g. water in dams) to large quantity fluid to increase its pressure (e.g. to pump river water to river bank) includes moveable chambers partitioned by means of a plurality of pairs of diaphragms.

FIG. 3 shows schematic view of the third embodiment of the present invention in which the device for transferring energy includes moveable chambers formed by means of a plurality of pairs of bellows.

FIG. 3 a shows an assembly of respective pair of bellows fixed on either side of

disc

63 a, 63 b as shown in FIG. 3.

FIG. 3 b shows a detailed view of the reinforcing discs provided on the pair of bellows and

disc

63 a, 63 b shown in FIG. 3.

FIG. 3 c shows a further detailed view of the anti-friction means 58 shown in FIGS. 3 and 3 b.

FIG. 4 shows schematic view of the fourth embodiment of the present invention in which the device for transferring energy includes pairs of moveable chambers formed by means of respective rigid cylinders.

FIG. 5 shows schematic view of the fifth embodiment of present invention, in which the device for transferring energy includes a centrally disposed body directly in fluid communication with driving fluid through fluid passages provided on it and having a reversed position of diaphragm and pot-like chamber assembly with respect to that shown in FIG. 1.

FIG. 6 shows schematic detailed view of fluid diverter valve assembly shown in FIGS. 1 to 5, which includes: a pair of 3-way valves, a 4-port floating piston valve, a pair of pilot operated non-return/check valves and one ball type 4-way large orifice valve, all shown in their operative configurations.

FIG. 6 a shows schematic detailed view of fluid diverter valve assembly 15, in which the floating piston valve is a 5-port valve, which includes a circumferentially centrally grooved piston and an additional exhaust port connected to the groove on it.

FIG. 7 shows schematic view of the non-return/check valves shown in FIG. 6.

FIG. 7 a shows schematic view of the ball type 4-way large orifice valve for diverting fluid flow by pulse operated diverter valve assembly shown in FIG. 6.

DETAIL DESCRIPTION OF INVENTION OF THE DRAWINGS

FIG. 1 shows schematic view of a first embodiment of the present invention in which, the device can transfer energy from a large quantity fluid present at low pressure (e.g. rain water collected on top of buildings) to low quantity fluid to increase its pressure (e.g. to pump tap water to a reservoir above top of buildings from base reservoir), i.e. a driven fluid without contacting or mixing with each other. The device includes: an elongate central body 44 with profiled cavities, here the central body 44 has respective conical cavities 37, 38 with a fluid passage 46, 45 on either side for fluid communication via pipes 11, 12 with IN/ OUT lines 1, 13 of a secondary or driven fluid via a flow directing or switching valve 80, 81, 82, 83, to be explained later. The central body 44 is fixed in its position, and a pair of composite outer bodies is fixed on either side thereof. Each composite outer body includes a cylindrical body 40 a, 40 b with flanges on both ends extending outwardly, and a plurality of holes for fixing fasteners 62 a, 62 b. A partially conical outer end plate 60 a, 60 b is also provided for forming a respective outer chamber. The outer pointed end of the end plates 60 a, 60 b has an IN/ OUT passage 35, 36 for fluid communication with a primary or driving fluid via connection line 7, 5, to flow diverter valve assembly 15 and the respective fluid IN line 2 or fluid OUT line 14. The operators of said flow diverter valve assembly 15 are linked to pair of assembly of movable chambers by means of mechanical or electrical actuations so as to divert the driving fluid flow from one of the outer chambers to other. The inner end of the end plates 60 a, 60 b also has a flange with corresponding holes for fixing it on an outer flange of respective cylindrical outer body 40 a, 40 b by fasteners 62 a, 62 b. A respective circular diaphragm 9 a, 9 b is fixed between the respective outer flange of cylindrical body 40 a, 40 b and the respective flange of the end plates 60 a, 60 b. A respective fixing plate 20 a, 20 b keeps the diaphragms 9 a, 9 b fixed outside the extended base of the respective outer pot-like body 41, 42 by means of fasteners 21 a, 21 b. Therefore, an outer chamber is formed for containing said primary or driving fluid volume within the respective composite outer body disposed on either side of said central body 44. A respective inner annular plate 47, 48 is fixed on said central body 44, and an inner flange of the respective cylindrical outer body 40 a, 40 b is fastened by fasteners 43 a, 43 b. A plurality of guiding and connecting rods 25, 26, duly supported on respective bearing means 17 fixed in apertures is provided in the respective inner end plates 47, 48 to connect and reciprocate said pair of assembly of inner and outer moveable chambers within a respective cylindrical outer body 40 a, 40 b.
Another pair of composite inner bodies disposed on either side of said central body 44 each includes a respective pot-like rigid body 41, 42 having a closed end and a flange on one side and one cylindrical inner body 41 a, 42 a having outwardly extending flanges on both ends. A respective inner annular diaphragm 10 a, 10 b is fastened with its peripheral end by fasteners 22 a, 22 b between the respective outer pot-like body 41, 42 and inner cylindrical body 41 a, 42 a. The other inner circumferential end of the respective diaphragm is fixed on the annular face of said central body 44 by fasteners 23 a, 23 b pressed under the annular plate 24 a, 24 b. Therefore, a respective inner chamber is formed in conjunction with each conical cavity 37, 38 of central body 44 for containing a secondary or driven fluid volume. The respective combined volume of the moveable outer chambers and the moveable inner chambers is always constant. However, individual volumes of outer chambers can vary amongst themselves as per the reciprocating movement of the pair of assembly of moveable chambers. Similarly, the individual volumes of inner chambers can vary amongst themselves as per the reciprocating movement of the pair of assembly of moveable chambers.
FIG. 2 shows schematic view of the second embodiment of the present invention in which the device for transferring energy from low quantity fluid at high pressure (e.g. water in dams) to large quantity fluid to increase its pressure (e.g. to pump river water to river bank) includes moveable chambers partitioned by means of a plurality of pairs of diaphragms. This device also includes a plurality of pairs of moveable chambers partitioned by means of a plurality of pairs of diaphragms as shown in FIG. 1. However, this embodiment differs from that shown in FIG. 1 only in that, that the driving fluid volume is now contained in the moveable inner chambers and the driven fluid volume is contained in the moveable outer chambers. Accordingly, driving fluid IN line 1 and OUT line 13 are respectively in fluid communication with fluid pipes 11, 12 disposed on central body 44 via flow diverter valve assembly 16 and the driven fluid IN line 2 via control valve 51 and fluid OUT line 14 are respectively connected to the flow directing valves 76, 77, 78, 79 via pipes 5, 7 for changing the flow direction on reaching the respective end positions of the reciprocating movement of said pair assembly of moveable chambers. All other constructional details are the same as in FIG. 1 already discussed above.
FIG. 3 shows schematic view of a third embodiment of the present invention, in which device for transferring energy includes: a composite outer body similar to that shown in FIG. 1 or 2, with the only difference that conical outer plate is conical in shape and not partially conical. The assembly of moveable chambers disposed on either side of central body 44 includes a pair of bellows, i.e. a respective outer bellow 52 a, 52 b and an inner bellow 54 a, 54 b. Each of the bellow has a flat closed end and a flanged open end. The flat closed ends of outer bellows about the respective two sides of flat circular partition 63 a, 63 b. The open end of outer bellows 52 a, 52 b have a flanged open end 68 a, 68 b extending outwardly, which is fixed as partition between the flanges of said conical outer end plates 60 a, 60 b and the outer flange of respective cylindrical outer body 40 a, 40 b for forming a respective outer chamber on either side of said central body 44. The open ends of the inner bellows 54 a, 54 b have a cylindrical end 70 a, 70 b extending parallel to the axis of assembly, which is fixed on the external circumference of said central body 44 in a sealing manner by fasteners 21 g, 21 h for forming a respective inner chamber. All these bellows are provided with disc-like reinforcing means 56, 57 supporting their outer surface at regular intervals. Anti-friction means 58, such as roller bearings (refer FIGS. 3 b, 3 c) are also provided on the outer circumference of these reinforcing means, which abut the inner circumference of respective cylindrical outer body 40 a, 40 b in order to minimize friction during movement of assembly of moveable chamber. At their inner circumferences, these disc-like reinforcing means 56, 57 also support the respective bellows, in order to prevent any uncontrolled bulging due to fluid contained inside. The reinforcing means 57 provided on the inner bellows also have apertures for passage of a plurality of connecting rods 25, 26. The operators of said flow diverter valve assembly 15 are linked to the pair of assembly of movable chambers by means of mechanical or electrical actuations, so as to divert the flow of the respective driving fluid and driven fluid from one direction to the other, in order to obtain a reciprocating movement of the pair of assembly of moveable chambers about said central body 44.
FIG. 3 a shows an enlarged view of an assembly of respective pair of bellows 52 a, 54 a; 52 b, 54 b fixed on either side of flat circular partition 63 a, 63 b shown in FIG. 3.
FIG. 3 b shows a detailed view of the reinforcing discs 56 with apertures provided on the pair of outer bellows 52 a, 52 b shown in FIG. 3. It also shows a detailed view of the reinforcing discs 57 with apertures provided on the pair of inner bellows 54 a, 54 b shown in FIG. 3. The figure also shows the roller bearings 58 fixed on the circumference of these reinforcing discs for support and friction minimized movement of each assembly of moveable chambers inside the respective cylindrical body 40 a, 40 b. It should be noted that these aperture profiles are merely for representation purposes and may include various other profiles within the scope of this invention.
FIG. 3 c shows a further detailed view of the roller bearings 58 shown in FIGS. 3 and 3 b. Here, the bearings 58 are fixed on the outer circumference of the reinforcing discs for making a rolling contact with the inner circumference of the respective cylindrical outer body 40 a, 40 b for a friction minimized reciprocating movement of the pair of assembly of moveable chambers.
FIG. 4 shows schematic view of a fourth embodiment of the present invention, in which an inner cylindrical shell 41 c, 41 d is disposed inside the respective outer cylindrical body 40 a, 40 b, each of which is disposed on either side of the central body 44. The extended circular base of the respective inner cylindrical shell 41 c, 41 d has anti friction sealing means 31 on its outer circumference, which abuts the inner circumferential surface of the respective cylindrical outer body 40 a, 40 b in a sealing manner. Therefore, the respective outer chambers are formed between said extended circular base and the conical outer end plate 60 a, 60 b. The other annular end of the inner cylindrical shell 41 c, 41 d also has anti friction sealing means 32, which is also supported and moveable on said central body 44 in a sealing manner. Therefore, each of the inner cylindrical shell 41 c, 41 d forms a respective inner moveable chamber in conjunction with the respective conical cavity 37, 38 disposed on either side of the central body 44.
FIG. 5 shows schematic view of a fifth embodiment of the present invention, in which the driving fluid is supplied to the inner moveable chambers directly via fluid passages 45 a, 45 b provided on the central body 44 c in order to connect to the respective profiled cavities on either sides of the central body 44 c. In this embodiment, the device has a reversed construction of the moveable chambers assembly, i.e. the inner moveable chamber is filled with the driving fluid and outer chamber is filled with the driven fluid. The inner circular diaphragm 10 c, 10 d form the inner chambers and the outer annular diaphragms 9 c, 9 d form the outer chambers. The orientation of the inner pot- like body 42 d, 42 f is also reversed. Here, each of the cylindrical outer body 40 c, 40 d enclosing the respective pair of moveable chambers is composed of a cylindrical outer body 40 c, 40 d which is closed at outer ends by outer annular plates 44 d, 44 e fitted with a cylindrical bodies 44 a, 44 b having respective inwardly extended conical cavity 35 e, 36 e to form an outer chamber with the respective inner pot- like body 42 d, 42 f in conjunction with the outer annular diaphragms 9 c, 9 d. Each cylindrical outer body 40 c, 40 d is closed at the inner end by an inner annular plate 48 a, 48 b fixed with its inner circumference on said central body 44 c. A respective inner composite cylindrical body is disposed inside each cylindrical outer body 40 c, 40 d for forming a respective moveable chamber on either side of said central body 44 c. In contrast to arrangement shown in FIG. 1, here each of the inner pot- like body 42 d, 42 f is open outwardly to form the respective outer moveable chamber in conjunction with outer annular diaphragms 9 c, 9 d. The respective outer cylindrical shell 42 c, 42 e has a corresponding smaller flange near the inner pot- like body 42 d, 42 f for fixing the annular outer diaphragm 9 c, 9 d and a respective outwardly extending larger flange 35 c, 35 d at its end away from the inner pot- like body 42 d, 42 f. A plurality of connecting rods 25 c, 26 c are fixed on the outwardly extending larger flanges 35 c, 35 d of the outer cylindrical shell 42 c, 42 e. A respective bellow supporting cylinder 41 e, 41 f is fixed on the inner annular plates 48 a, 48 b for fixing the inner circular diaphragm 10 c, lOd on its circumference and also for preventing any uncontrolled bulging due to high fluid pressure inside the respective inner moveable chambers. Similar to FIG. 1, the middle portion of this inner circular diaphragm 10 c, lOd is supported and fixed outside the base of said inner pot- like body 42 d, 42 f by means of fasteners 21 c, 21 d and fixing plates 20 c, 20 d.
FIG. 6 shows a typical fluid diverter valve assembly 15, 16. It consists of a pair of 3- way valves 25 a, 25 b disposed on either side of a 4-port floating piston valve 27 a; a pair of nonreturn/ check valves 43 c, 43 d connected to OUT ports 9 e, 9 f of said floating piston valve 27 a; and a ball type 4-way large orifice valve 27 b. Each of said 3- way valves 25 a, 25 b comprises an OUT port 19 a, 19 b, an IN port 36 a, 36 b and an exhaust port 20 e, 20 f connected to a common exhaust port 24. Said OUT ports 19 a, 19 b are connected to respective IN ports 33 a, 33 b of said 4-port floating piston valve 27 a, and said IN ports 36 a, 36 b of said 3- way valves 25 a, 25 b are connected to a common IN line 23. Two inner chambers 35 a, 35 b are disposed axially on inner sides of an intermediate chamber 18 a, 18 b. Therefore, the inner chambers 35 a, 35 b are connected to each other and to a common IN line 23. Similarly, two outer chambers 27 c, 27 d are disposed on outer sides of the intermediate chambers 18 a, 18 b connected via connection pipes 20 g, 20 h. A respective axially moveable plunger having a plunger tail (operator) 21 e, 21 f, a middle body supported at one end by a spring 15 a, 15 b by discs 14 a, 14 b fixed on it and a respective flange 12 a, 12 b supported at its other end by profiled portion 37 a, 37 b, and sealing means surrounding flange 12 a, 12 b. Said 4-port floating piston valve 27 a comprises, a floating piston 28 with axial cylindrical projections having sealing means, said floating piston 28 reciprocates within a cylindrical chamber 28 c having two IN ports 33 a, 33 b, two OUT ports 9 e, 10 f.
FIG. 6 a shows a typical fluid diverter valve assembly 15, which is similar in construction to the valve shown in FIG. 6 except that here, the floating piston valve 27 a ₁has a piston 28 a having a centrally disposed cylindrical groove on its external circumference, which is connected to an additional exhaust port 24 e provided on said floating piston valve 27 ai. In this embodiment, two non-return/ check valves 43 c, 43 d used in FIG. 1 are omitted; thereby a simplified flow diverter assembly is obtained.
FIG. 7 shows a typical non-return/ check valve 43 c, 43 d shown in FIG. 6. Each of the non-return valves 43 c, 43 d comprises three chambers formed by two partitions, a pilot port 45 c, an IN port 47 c and an OUT port 46 c, a poppet valve with a stem 49 c having a poppet 48 c fixed at one end by fasteners and a diaphragm 44 f attached in the middle and fixed at the other end by fasteners, said diaphragm 44 f is biased by means of a spring 49 d to direct fluid flow in one direction, i.e. connecting said IN port 47 c to said OUT port 46 c.
FIG. 7 a shows schematic view of the ball type 4-way large orifice valve 27 b for diverting driving fluid flow from one direction to the other by means of a pulse operated diverter valve assembly shown in FIGS. 6 and 6 a. Said ball type 4-way 27 b comprises: an IN port D; an exhaust port C; two oppositely disposed IN-OUT ports A, B; pilot ports 56 a, 56 b in fluid communication with pilot chambers 55 a, 55 b; said 4-way valve 27 b having IN chambers 58 a, 58 c; Exhaust chambers 58 b, 58 d; a pair of ball assembly each assembly having two balls 66 a, 66 b; 66 c, 66 d fixed on the respective freely movable centrally guided rods 54 c, 54 d, which are supported on a diaphragm 57 a, 57 b at one of the ends by a spring 49 d; said diaphragms 57 a, 57 b being fixed at the upper end of said rods 54 c, 54 d and sandwiched between two rigid plates 65; ball seats 67 a, 67 b; 67 c, 67 d; a lever 61 pivoted about a pivot 61 b and said rod 54 c, 54 d passes through the apertures 62 c, 62 d at the ends of lever 61, and also supported and biased by stopper 65 a, 65 b and spring 64 a, 64 b.
Following tables illustrate different numerals used in this invention and names of respective part for convenience.


Ref. No.	Name of the Part	Ref. No.	Name of the Part

1	Fluid IN line	2	Fluid IN line
5, 7	Connection pipe	9a, 9b	Circular diaphragm
9c, 9d	Outer annular diaphragm	9e, 9f	OUT ports of floating piston valve 27a
10a, 10b	Inner annular diaphragm	10c, 10d	Inner circular diaphragm
11	Pipe connecting fluid passage 45	12	Pipe connecting fluid passage 46 to flow
	to flow directing valves		directing valves
12a, 12b	Flange of plunger of 3-way	13, 13c	Fluid OUT line
	valve
14a, 14b	Disc for fixing plunger spring	14, 14c	Fluid OUT line
15, 16	Flow diverter valve assembly	17, 18	Bearing means
15a, 15b	Spring for 3-way valve plunger	18a, 18b	Intermediate chamber of 3-way valve
19a, 19b	OUT port of 3-way valve	20a, 20b	Fixing plate
20c, 20d	Diaphragm fixing plate	20e, 20f	Exhaust port of 3-way valve
20g, 20h	Connection pipe of 3-way valve	21a, 21b	Fasteners
21c, 21d	Fasteners	21e, 21f	Plunger tail of 3-way valve
21g, 21h	Fasteners	21j, 21k	Fasteners
22a, 22b	Fasteners	23	Common IN line
23a, 23b	Fasteners	24	Exhaust port of 3-way valve
24a, 24b	Annular plate of central body 44	24c, 24d	Fasteners
24e	Exhaust port of valve 27a₁	25, 26	Guiding and connecting means
25a, 25b	3-way valve	25c, 26c	Guiding and connecting rod
27a	4-port floating piston valve	27b	4-way large orifice valve
27a₁	5-port floating piston valve	27c, 27d	Outer chamber of 3-way valve
28	Flat floating piston for valve 27a	28a	Grooved floating piston for valve 27a₁
28c	4-port Cylindrical chamber	28d	5-port Cylindrical chamber
31, 32	anti friction means on 41c, 41d	33a, 33b	IN port of floating piston valve 27a
35, 36	IN/OUT passage at conical end	35a, 35b	Inner chambers of 3-way valve plate
35c, 35d	Outer cylindrical shell	35e, 36e	Conical cavity
36a, 36b	IN port of 3-way valve	37a, 37b	Profiled portion of 3-way valve
			plunger
37, 38	Profiled cavity on first and	37c, 37d	Profiled inner cavity on body 44c
	second side of central body 44
38a, 38b	Sealing means on plunger flange	40a, 40b	Cylindrical outer body
41, 42	Outer pot-like rigid body	40c, 40d	Cylindrical outer body (5th embodiment)
41c, 41d	Rigid inner cylindrical shell	41a, 42a	Cylindrical inner body
42d, 42f	Inner pot-like rigid body	41e, 41f	Bellow supporting cylinder
44	Elongate central body	43a, 43b	Fasteners
44a, 44b	Cylindrical body	43c, 43d	Non-return/check valve
44f	Diaphragm of poppet valve	44c	Central body (5th embodiment)
45, 46	Fluid passage on central body	44d, 44e	Outer annular plate
46c	OUT port of non-return valve	45a, 45b	Fluid passages on central body 44c
47c	IN port of non-return valve	45c	Pilot port of non-return valve
48c	Poppet	47, 48	Inner annular end plate
49c	Stem of poppet valve	48a, 48b	Inner annular plate
49f	Spring of poppet valve	49d	Spring of 4-way valve 27b
50	Control valve	50c	Driven fluid IN line in body 44c
51	Control valve	51c	Driving fluid IN line in body 44c
52a, 52b	Outer bellow	54a, 54b	Inner bellow
55a, 55b	Pilot chambers of 4-way valve	54c, 54d	Centrally guided rods
	27b
56	Reinforcing means on outer	56a,	Pilot port of 4-way valve 27b
	bellows	56b
57	Reinforcing means on inner	57a, 57b	Diaphragm of ball assembly
	bellows
58	Roller bearing on discs 56, 57	58a, 58c	IN chambers of 4-way valve 27b
58b, 58d	Exhaust chambers of valve 27b	58e, 58f	Fasteners
60a, 60b	Conical outer end plate	61	Lever of valve 27b
61a	Pivot of valve 27b	62a, 62b	Fasteners
63a, 63b	Flat circular partition	62c, 62d	Apertures in lever 61
65	Diaphragm fixing plates	65a, 65b	stopper
67	Aperture in reinforcing means	66a, 66b	Balls of first ball assembly
67a, 67b	Ball seat of first ball assembly	66c, 66d	Balls of second ball assembly
67c, 67d	Ball seat of second ball assembly	68a, 68b	Flanged open end of outer bellows
76, 77	Flow directing valve	70a, 70b	Cylindrical open end of inner bellows
80, 80c	Flow directing valve	78, 79	Flow directing valve
82, 82c	Flow directing valve	81, 81c	Flow directing valve
83, 83c	Flow directing valve	88a, 88b	First, Second pair of bellows assembly

The working of the invention will now be described with reference to the constructional features shown in the drawings as described above.
In FIG. 1, the outer moveable chambers formed between the respective conical outer end plates 60 a, 60 b and circular diaphragms 9 a, 9 b disposed on either side of the elongate central body 44 are in fluid communication with fluid IN line 2 via control valve 51 and OUT line 14 of the primary or driving fluid via flow diverter valve assembly 15 through the respective fluid IN/ OUT passages 35, 36. The total volume of these outer moveable chambers is constant, thus a change (increase or decrease) in the volume of driving fluid present in one of the outer moveable chamber causes a corresponding decrease or increase in the volume of the other outer moveable chamber. Similarly, the inner moveable chambers formed between the respective conical cavities 38, 37 on the central body 44 and the respective outer pot-like body 41, 42 by means of inner annular diaphragms 10 a, 10 b disposed on either side of said central body 44 are in fluid communication with IN lines 1 of the secondary or driven fluid via fluid directing valves 80, 82 through the respective fluid passages 45, 46 and control valve 50 and is also in fluid communication with OUT line 13 via flow directing valves 81, 83. The total volume of these inner moveable chambers is also constant, so a change (decrease or increase) in the volume of driven fluid present in one of the inner moveable chamber causes a corresponding increase or decrease in the volume of the other inner moveable chamber. Therefore, an increase or decrease in the volume of a respective outer moveable chamber on one of the side causes a corresponding decrease or increase in the volume of the inner moveable chamber in that side and vice versa.
When, the primary or driving fluid enters through fluid IN/OUT passage 35 into the first outer moveable chamber, it initiates a rightward movement of this moveable chamber since, the conical outer end plate 60 a and the central body 44 are fixed. The only way, by which this driving fluid entering the outer moveable chamber can be accommodated, is by increasing its volume, i.e. by the displacement of circular diaphragm 9 a by moving the inner composite cylinder assembly towards right. By this rightward movement of the first outer moveable chamber, the volume of driven fluid (required to be continuously pumped with high efficiency by utilizing the energy of said driving fluid present in the outer moveable chamber) is continuously reduced in the first inner moveable chamber. This drives out the driven fluid from said first inner chamber through pipe 12, which is connected to a flow directing valve assembly comprising of four flow directing valves 80, 81, 82, 83 herein described and arrangement is such that when the four way valve 15 attains a second position, the fluid communications through passages 35, 36, 45, 46 changes input to output and output to input of fluids respectively. In fact, when the driving fluid is moving the first moveable chamber from left to right, said flow directing valve assembly causes the entry of the driven fluid into the second inner moveable chamber through the other IN/OUT passage 46, which further aids the movement of the pair of assembly of moveable chambers towards right, as shown in FIG. 1. All the while, the driving fluid is entering the first outer moveable chamber on the left; the driving fluid is flowing out from the second outer moveable chamber disposed on the right side of the central body 44 and flows out via flow diverter valve assembly 15 via fluid OUT line 14. The suction effect of the driving fluid flowing out of this second outer moveable chamber also enhances this rightward movement of the pair of assembly of moveable chambers. Simultaneously, the driven fluid is flowing out of said first inner moveable chamber, the flow directing valve 82 causes entry of the driven fluid into said second inner moveable chamber. Further, mechanical actuators or electrical sensors are disposed at predefined positions on said assembly of moveable chambers, which actuate the flow diverter valve assembly 15 (to be described subsequently in details), by which the movement of the pair of assembly of moveable chambers is reversed after reaching a respective end position, then causes the driving fluid inflow from fluid passage 36 provided on the right side of the central body 44 and the reversed operation continues to pump driven fluid present in said second inner moveable chamber. In this manner, the driven fluid is continuously pumped by the inflow of driving fluid via fluid IN line 2 and its energy is continuously transferred to the driven fluid flowing in via its fluid IN line 1.
The operation is similar for all the embodiments shown in FIGS. 1 to 5, except in FIGS. 2 and 4, in which the driving fluid is filled in the inner moveable chambers and the driven fluid is filled in the outer moveable chambers, rest of the fluid energy transfer operation is the same.
Now, FIG. 6 showing the flow diverter valve assembly 15 will be discussed for explaining its operation. In its normal position, the plunger tails 21 e, 21 f are extending out of the 3- way valves 25 a, 25 b by the respective preloaded spring 15 a, 15 b. On reaching a respective end position of the respective assembly of moveable chambers, a momentary actuation or pulse is given to the plunger tail of one of the 3-way valves 25 a, e.g. plunger tail 21 e here. By this actuation, this plunger moves towards right and plunger flange 12 a momentarily blocks the fluid communication between the common IN line 23 and the intermediate chamber 18 a of this 3-way valve 25 a and a fluid communication is established between the IN port 33 a of the 4-port floating piston valve 27 a and exhaust port 24 via connection pipe 20 g. This causes an imbalance of fluid pressures acting on two IN ports 33 a, 33 b of the floating piston valve 27 a, and thus, brings the flat floating piston 28 to its left most position, to block the fluid-communication of this common IN line 23 with pilot port 56 a of said 4-way ball type large orifice valve 27 b. Immediately afterwards, because of the biasing force of spring 15 a and due to the reversed movement of respective assembly of moveable chambers, said plunger comes back to the normal resting position and even though the fluid IN line pressure is again acting on both sides of the floating piston 28, the effective piston area on the left side (IN port 33 a) being smaller than that on the right side (IN port 33 b), the piston remains in its left most position, still blocking the fluid flow via left side OUT port 9 e and allowing the fluid flow only via right side OUT port 9 f. This is reversed when the other plunger tail is actuated on reaching the other respective end position.
Accordingly, driving fluid entering via IN line 23 is forwarded via OUT port 19 b of 3-way valve 25 b and via IN port 33 b of 4-port floating piston valve 27 a and further via OUT port 9 f to the ball type 4-way ball type large orifice valve 27 b and also to one of the non-return valve 43 c. This driving fluid reaching the pilot port 56 b of said ball assembly disposed on the right side of said 4-way ball type large orifice valve 27 b pushes the diaphragm 57 b down, thereby closing the fluid communication of the IN line port D with IN-OUT port A and opens its fluid communication with the IN-OUT port B. Simultaneously, removal of pressure at pilot port 56 a causes closing of the fluid communication of the IN line port D with the port A and opens the fluid communication of said port A with the exhaust port C, upward movement of one of the ball assembly due to IN line pressure also assists the downward movement of the other ball assembly by means of lever 61. Here, it is pertinent to mention that ports A and B are respectively connected to one of the fluid IN/ OUT passages 35 and 36 on the conical outer end plates 60 a, 60 b are disposed either side of said central body 44.
IN line fluid pressure is also acting on non-return valves 43 c, 43 d. However, as shown in FIG. 7 and discussed above, the effective area of diaphragm 44 f of the poppet valve 48 c exposed to this pressure is more than the pressure working on poppet valve 48 c on the other non-return valve 43 d. Therefore, fluid entering through pilot port 45 c of non-return valve 43 c opens the fluid communication between the IN port 47 c and OUT port 46 c with exhaust or atmospheric pressure.
Further, a 5-port floating piston valve 27 ai is shown in FIG. 6 a. This valve has a 5-port cylindrical chamber and its piston 28 a has a central circumferential groove and an exhaust port 24 e, which is in fluid communication with one of the OUT ports 9 e, 9 f. This construction simplifies the diverter assembly by omitting two non-return/ check valves 43 c, 43 d.
The flow diverter valve assembly operates in a reversed manner and the plunger of the other 3-way valve 25 b is actuated, when said assembly of moveable chambers reaches the other end position of movement. In this manner, the driving fluid energy is continuously transferred for pumping the driven fluid.
The present invention device is having resemblance between it and electric transformer. In step up transformer high current, low voltage is converted into low current, high voltage and in step down transformer low current, high voltage is converted into high current, low voltage. While the present invention transfers energy of less quantity (volume), high pressure secondary fluid to large quantity (volume) primary fluid for increasing its pressure which is less than applied pressure, also transfers energy of large quantity, low pressure primary fluid to less quantity secondary fluid for increasing its pressure which is greater than applied pressure. In pumping, pressure of fluid pumped depends on volume and density ratios of respective fluids in outer and inner respective chamber.

EXEMPLARY USE OF THE PRESENT INVENTION

While considerable emphasis has been placed herein on the product, it will be appreciated that further alterations can be done and that many modifications can be done in the preferred embodiments without departing from the principles of the present invention.
These and other changes in the preferred product in accordance with the present invention will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the present invention and not as a limitation thereof.

TECHNICAL ADVANTAGES & ECONOMIC SIGNIFICANCE

The potential (pressure) energy of one of the fluid can be utilized for pumping the same or different fluid with high pressure by increasing the pressure of the secondary or driven fluid with high efficiency, without contacting or mixing of the two fluids. A vertical and horizontal delivery of a driven fluid by means of the energy available in a driving fluid can be achieved with optimum energy utilization. The available line pressures energy of one fluid can be used to pump the same or a different fluid, which energy would have otherwise remained unutilized.

Claims

1-11. (canceled)

12. A device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other, said device comprises, an elongate central body (44) with a profiled cavity (37, 38) on either side having a respective fluid passage (45,46); a pair of composite outer bodies having a respective fluid IN/OUT passage (35, 36) for fluid communication with IN line (2) and OUT line (14) of one of the fluids via a flow diverter valve assembly (15); a pair of assembly of moveable chambers, each fixed on either side of said central body and disposed inside respective composite body; a plurality of guiding and connecting means (25, 26) passing through a respective inner annular end plate (47, 48) of said composite outer body for connecting and reciprocating said pair of assembly of moveable chambers in a friction minimizing manner and disposed on either side of said central body; in which said flow diverter valve assembly (15) comprising: a pilot operated ball-type 4-way large orifice valve (27 b), and a pulse operated flow diverter assembly, wherein, the pilot pressure is controlled by said pulse operated flow diverter assembly by means of actuation or pulses received on reaching the respective end position of said reciprocating movement of said pair of assembly of moveable chambers, alternatively diverts the direction of reciprocating motion of said pair of assembly of moveable chambers by diverting the flow direction of one of said fluids by means of actuation or pulses received on reaching the respective end positions on either side of said central body; and flow directing valves for alternatively switching the flow direction of the other fluid from its IN line to respective moveable chamber and from respective moveable chamber to an OUT line via said fluid passages of said central body.

13. The device as claimed in claim 12, wherein each of said composite outer body comprises a cylindrical outer body (40 a, 40 b) with flanges extending outwardly at each end and having fasteners (62 a, 62 b), and at least partially conical outer end plate (60 a, 60 b) connected via said respective fluid passage (35, 36) at either outer end to said IN line (2) or OUT line (14) and having a flange at respective inner end, which is fastened on a respective flange of said cylindrical outer body for fixing a partition to form a respective moveable chamber on either side of said central body; an inner annular end plate (47, 48) closing the operative inner end of the respective composite body and fixed with its inner circumference on the outer surface of said elongate central body (44), said inner annular plate having a plurality of apertures for fixing a plurality of bearing means (17) for the passage of said guiding and connecting means (25, 26) through the same, and wherein said respective composite outer body surrounds a cylindrical inner body (41 a, 42 a) having flanges extending outwardly at either end, and an outer pot-like rigid body (41, 42) having a flat closed outer end and an annular flange extending outwardly at inner end; a respective inner annular diaphragm (10 a, 10 b) being fixed at its outer circumference between an outer flange of said cylindrical shell and inner annular flange of said pot-like body by fasteners (22 a, 22 b), said inner annular diaphragm being fixed at its inner circumference under a respective annular plate (24 a, 24 b) on said central elongate body (44) by fasteners (23 a, 23 b) to form a respective inner moveable chamber; a circular diaphragm (9 a, 9 b) being fixed at its outer circumference as said partition between an outer flange of respective cylindrical body and said flange of respective partially conical outer end plate (60 a, 60 b); said circular diaphragm being centrally supported and fixed under fixing plates (20 a, 20 b) by fasteners (21 a, 21 b) outside the base of said outer pot-like body (41, 42) to form a respective outer moveable chamber.

14. The device as claimed in claim 13, wherein said moveable chambers being a pair of assembly of outer bellows (52 a, 52 b) and inner bellows (54 a, 54 b), each of said bellows having a flat closed end and an open end, said flat closed ends abutting on either side of a flat circular partition (63 a, 63 b); said pair of assembly of bellows enclosed within said composite outer body disposed on either sides and moveable in a friction minimizing manner; said open ends of outer bellows having an annular portion extending outwardly and fixed as said partition between said flange of respective conical outer end plate (60 a, 60 b) and outer flange of respective cylindrical outer body, to form a respective outer chamber; said inner bellows having a respective cylindrical open end (70 a, 70 b) extending parallel to the axis of said assembly and fastened on the external circumference of said central body (44) by fasteners (21 g, 21 h) to form a respective inner chamber; said bellows being provided with disc-like reinforcing means (56, 57) at regular intervals, having anti friction means (58) on outer circumference abutting the inner circumference of respective cylindrical inner body (41 a, 42 a) at one end and supporting said bellows at inner circumference; said guiding and connecting means (25, 26) being supported on said flat circular partition and passing through a plurality of apertures (67) provided in said disc-like reinforcing means (57) of inner bellows (54 a, 54 b).

15. The device as claimed in claim 13, wherein a rigid inner cylindrical shell (41 c, 41 d) being disposed and moveable inside respective outer composite body, by abutting its extended base having anti friction sealing means (31) on its outer circumference at one end and forming a respective outer moveable chamber with said conical outer end plate (60 a, 60 b); the other annular end of said cylindrical shell being supported and moveable on said central body (44) in a friction minimizing and sealing manner and forming a respective inner moveable chamber.

16. A device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other, said device comprising: a central body (44 c) with profiled inner cavities (37 c, 37 d) on either side, being connected by a respective fluid passage (45 a, 45 b) to an IN line 2 via driving fluid IN line (51 c) and an OUT line (14 c); a respective cylindrical outer body (40 c, 40 d) disposed on either side of said central body, said cylindrical outer body having flanges at both ends and closed at outer end by a respective outer annular plate (44 d, 44 e) fitted with cylindrical bodies (44 a, 44 b) having a profiled conical cavity (35 e, 36 e), closed at inner ends by a respective inner annular plate (48 a, 48 b), said inner annular plate being also fixed at its inner circumference on said central body; a pair of composite inner bodies disposed on either side of said central body, each composite inner body respectively having an inner pot-like rigid body (42 d, 42 f) and an outer cylindrical shell (35 c, 35 d), said pot-like body having a flanged end open towards said cylindrical shell and its base towards said central body; said outer cylindrical shell having flanges on either side, the inner flange abutting the flange of said pot-like body for fixing an outer annular diaphragm (9 c, 9 d) by fasteners (21 j, 21 k) to form a respective outer moveable chamber with a profiled conical cavity of respective cylindrical bodies (44 a, 44 b), and having an outwardly extending outer flange; a pair of bracket like bellow supporting cylinders (41 e, 41 f), each fixed on respective inner annular end plate by plurality of fasteners (24 c, 24 d) for fixing and supporting an inner circular diaphragm (10 c, 10 d) at its circumference, the middle portion of said diaphragm being supported and fixed by fasteners (21 c, 21 d) under fixing plates (20 c, 20 d) outside the base of said pot-like rigid body to form a respective inner moveable chamber; guiding and connecting means (25 c, 26 c) passing through said inner annular end plates and supported on bearing means (17) for imparting friction-minimized reciprocating movement to said pair of assembly of moveable chambers; wherein, the driving fluid is directly supplied via a flow diverter valve assembly (15) into one of the inner moveable chambers, in order to reciprocate the moveable assembly in one of the longitudinal direction of said assembly, said flow diverter valve assembly diverting said flow to the other inner moveable chamber, on receiving actuation or pulses from the said pair of assembly of movable chambers on reaching a respective end position of said reciprocating movement of said assembly; a directing valve (80 c, 81 c, 82 c, 83 c) alternatively directing the flow direction of the other fluid from its IN line (1) via driven fluid IN line (50 c) to respective chamber and chamber to an OUT line (13 c) from said profiled outer conical cavity, in order to facilitate said reciprocating movement of said pair of assembly of chambers in a reversed direction.

17. The device as claimed in claim 16, wherein said flow diverter valve assembly (15) comprises: a pilot operated ball-type 4-way large orifice valve (27 b), and a pulse operated flow diverter assembly, wherein, the pilot pressure is controlled by said pulse operated flow diverter assembly by means of actuation or pulses received on reaching the respective end position of said reciprocating movement of said pair of assembly of moveable chambers.

18. The device as claimed in claim 17, wherein said pilot operated ball type 4-way large orifice valve (27 b) comprises: an IN port (D); an exhaust port (C); an IN-OUT port (A, B) disposed on either side; pilot ports (56 a, 56 b); said ball type 4-way large orifice having IN chambers (58 a, 58 c); Exhaust chambers (58 b, 58 d); a pair of ball assemblies, each ball assembly having a pair of balls (66 a, 66 b; 66 c, 66 d), each pair of balls fixed on respective freely movable and centrally guided rods (54 c, 54 d) which are centrally supported by a respective spring (64 a, 64 b), and passing through either end of a lever (61) and fixed on a respective diaphragm (57 a, 57 b) at one of the ends which is fixed at the other end of said rods, sandwiching between two rigid fixing plates (65); ball seats (67 a, 67 b; 67 c, 67 d); and said lever being pivoted about a pivot (61 b).

19. The device as claimed in claim 17, wherein said pulse operated diverter assembly comprises: a pair of 3-way valves (25 a, 25 b); a 4-port floating piston valve (27 a); and a pair of non-return valves (43 c, 43 d), said 3-way valves (25 a, 25 b) being disposed on either of said 4-port floating piston valve, wherein each of said 3-way valves having an intermediate chamber (18 a, 18 b) connected to an IN port (33 a, 33 b) of said 4-way floating piston valve via an OUT port (19 a, 19 b), a respective outer chamber (27 c, 27 d) axially disposed on either side of said intermediate chamber and connected via an exhaust port (20 e, 20 f) to a common exhaust port (24), a respective inner chamber (35 a, 35 b) axially connected to each other and to a common IN line (23) via an IN port (36 a, 36 b); and an axially moveable plunger with a profiled portion (37 a, 37 b) having a plunger tail (21 e, 21 f), a middle body supported at one end by a spring (15 a, 15 b) fixed on it by a fixing disc (14 a, 14 b) and having a flange (12 a, 12 b) at its other end, and sealing means (38 a, 38 b) surrounding said profiled portion, further wherein said 4-port floating piston valve (27 a) comprises a flat floating piston (28) having axial cylindrical projections with sealing means, said piston reciprocating within a 4-port cylindrical chamber (28 c) having two axial IN ports (33 a, 33 b) and two radial OUT ports (9 e, 9 f); said IN ports (33 a, 33 b) alternatively connecting a common IN line (23) via said respective 3-way valve (25 a, 25 b) to a pilot port (56 a, 56 b) of said pilot operated ball type 4-way valve (27 b) via one of said OUT ports (9 c, 9 f) by positioning of said floating piston on either side of said 4-port cylindrical chamber at respective ends thereof.

20. The device as claimed in claim 19, wherein said non-return valves (43 c, 43 d) comprises: three chambers formed by two partitions, a pilot port (45 c), an IN port (47 c) and an OUT port (46 c), a poppet valve (48 c) having a stem (49 c) with a poppet fixed at one end and a diaphragm (44 f) attached in the middle and fixed at the other end, both fixed by fasteners, said diaphragm (44 f) biased by means of a spring (49 d) for directing fluid flow in one direction to connect said pilot port (45 c) to said IN port (47 c).

21. The device as claimed in claim 17, wherein said flow diverter valve assembly (15) comprises: a pilot operated ball-type 4-way valve (27 b), and a pulse operated flow diverter assembly having a pair of 3-way valves (25 a, 25 b) and a 5-port floating piston valve (27 aj); said 3-way valves being disposed on two opposite sides of said 5-port floating piston valve, which comprises a floating piston (28 a) with a circumferential groove in the middle, reciprocating within a 5-port cylindrical chamber (28 d) having two axial IN ports (33 a, 33 b) and two radial OUT ports (9 e, 9 f) and an exhaust port (24 e) and said exhaust port alternatively in fluid communication with one of the OUT port (9 e, 9 f).