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US20130039789A1 - Vacuum, pressure or liquid pump - Google Patents

Vacuum, pressure or liquid pump Download PDF

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Publication number
US20130039789A1
US20130039789A1 US13/516,216 US200913516216A US2013039789A1 US 20130039789 A1 US20130039789 A1 US 20130039789A1 US 200913516216 A US200913516216 A US 200913516216A US 2013039789 A1 US2013039789 A1 US 2013039789A1
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US
United States
Prior art keywords
connecting rod
actuators
membranes
eccentric
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/516,216
Inventor
Óscar Donado-Muñoz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRO AD SL
Original Assignee
ELECTRO AD SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ELECTRO AD SL filed Critical ELECTRO AD SL
Assigned to ELECTRO AD, SL reassignment ELECTRO AD, SL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DONADO-MUNOZ, OSCAR
Publication of US20130039789A1 publication Critical patent/US20130039789A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics

Definitions

  • Vacuum, pressure or liquid pump of the type that comprises driving means with a shaft connected to an eccentric, at least two membranes that block a similar number of apertures in a box, characterised in that it comprises: a connecting rod, in whose centre houses a single bearing for each eccentric through which the referred shaft passes and at least two actuators that join the membranes to the connecting rod, being said actuators articulating with the connecting rod.
  • pumps are known in the state of the art, with one or two heads, one on each side of the motor, or even two on the same side (opposite with traditional connecting rods and a similar number of bearings). If more extraction capacity is required additional, heads can be added, or they can be over-dimensioned, which involves the use of as many connecting rods, bearings and membranes as required heads, increasing sizes and motor powers.
  • Spanish utility model 0244030 “A DEPRESSION OR VACUUM MEMBRANE PUMP” is known from 1979, in the name of PIERBURG BMBH & CO.KG, which refers to a depression or vacuum membrane pump, especially for conditioning automobile elements, such as servo brakes, the membrane of which is operated from a main shaft via a connecting rod and the chamber that is next to the head is sealed against the atmosphere, the chamber is connecting with the atmosphere by means of at least one valve that allows access the air and prevents the air exit from chamber to the atmosphere. In a similar fashion another valve performs the same process to expulse the air.
  • the pump includes preferably two or three diaphragm-type pumps mounted in a housing.
  • a vertical shaft is rotatably mounted in a housing, the shaft is secured to an unbalanced mass exterior responsive to the movements of the boat to effect the rotation of the shaft.
  • the end of the shaft remote from the end at which the mass is secured comprises an eccentric journal which is connected to a two- or three-arm member by a bearing and whose arms are in turn connected to the diaphragms for operating same successively to take in bilge water through intake pipes and valves and discharge same through outlet valves and pipes.
  • the driving means of pump are an unbalanced mass and do not comprise any motor.
  • the movements of the mass depend on movements of the sea, which are variable by its nature. Actually, this document forms part of the prior art in respect to bilge pumps for a boat or vessel which are operative only in the sea.
  • the inventor intends to operate with a single connecting rod, more heads, in other words, using a single connecting rod, be able to place as many actuators with membranes as permitted the connecting rod size, so that, to larger size of the connecting rod, greater number of actuators can be operate. This results in economic savings for both the manufacturer and the end buyer.
  • each head incorporated into the pump requires a different load point along the shaft for each one.
  • This invention uses a single bearing for each eccentric on which point all forces are balanced and stabilised. This is because only one connecting rod is required independently of the number of heads.
  • the present pump can operate a determined number of membranes with the same connecting rod and all forces caused by the heads and membranes are centred with respect to each other at the same working point.
  • an expulsion force is generated, another intake force is produced at the opposite point, with these being equal at all cycle points.
  • One objective of this invention is a vacuum, pressure or liquid pump, of the type comprising driving means with a shaft connected to an eccentric, at least two membranes that block a similar number of apertures in a box, characterised in that it comprises: a connecting rod, the centre of which houses a single bearing for each eccentric through which the referred shaft passes and at least two actuators that join the membranes to the connecting rod, with said actuators articulating with the connecting rod.
  • FIG. 1 is a general view of the invention, in which the membranes and heads have been eliminated.
  • FIG. 2 is a close-up without the box, membranes and heads.
  • FIG. 3 is a close-up of an actuator, a part that is connected by means of a hinge joint to the connecting rod.
  • FIG. 4 is a side view of the invention applied to an end product.
  • FIG. 1 illustrates a box 1 , driving means or motor 2 , apertures in the box 4 , which houses the membranes and heads, a shaft 5 , an eccentric 8 , a connecting rod 6 , actuators 7 and the connecting rod pass-through orifices 10 (at the actuator 7 positions).
  • FIG. 2 shows driving means 2 , connecting rod 6 , eccentric 8 , shaft 5 , connecting rod pass-through orifices 10 and actuators 7 .
  • FIG. 3 illustrates the actuator 7 that is joined to the connecting rod via the actuator pass-through orifice 11 , with a pin to form a hinge joint.
  • FIG. 4 represents box 1 , heads 3 , box apertures 4 , connecting rod 6 , actuators 7 , shaft 5 , connecting rod pass-through orifices 10 , pins 12 that form hinges joints and a bearing 9 housing the eccentric.
  • the product is basically configured as follows: it comprises a box 1 , driving means 2 , with shaft 5 connected to eccentric 8 , two membranes (as many as necessary, three, four, six, despite the fact that, although there are two in this embodiment, they cannot be seen because they are housed inside), which block the orifices in box 4 of cited box 1 .
  • actuators 7 and the membranes it is possible to configure as many as desired, starting with two by taking into account the positions of actuators 7 so that they compensate the forces as well as possible. For example, with three actuators 7 , each one could be positioned at 120°, which would then largely balance the forces. Five actuators would be positioned every 72° and so on according to the desired number. The idea is to divide the circumference by the desired number of actuators 7 .
  • this invention includes a single bearing 9 for each eccentric 8 .
  • connecting rod 6 the centre of which houses a single bearing 9 , through which the referred shaft 5 passes and at least two actuators 7 that connect the membranes housed inside heads 3 to connecting rod 6 , with said actuators 7 articulating with connecting rod 6 by, for example, pins.
  • Actuators 7 are articulated to connecting rod 6 by joints that employ pins 12 in this embodiment to form hinge joints.
  • connecting rods 6 partially house actuators 7 just as shown in FIGS. 1 , 3 and 4 .
  • connecting rod 6 articulates by means of a first pass-through orifice 10 through which actuator 7 passes, facing it via pin 12 ( FIG. 4 ), which passes through actuator 7 , leaving both pass-through orifices 10 and 11 aligned ( FIGS. 1 , 2 and 4 ).
  • actuators 7 to continue pushing the membranes housed inside head 3 so that they continue to block and unblock the respective entrances and exits inside head 3 .
  • the connecting rod forces that the movement on the membrane is linear because actuator 7 articulation on connecting rod 6 allows any membranes position to be recovered while these maintain their respective positions over apertures 4 .
  • connecting rod 6 becomes the connection between actuator 7 and bearing 9 and eccentric 8 , thus permitting the membranes to work and adapt to any position as forced by the eccentric.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

It comprises driving means (2), with shaft (5), connected to an eccentric (8), at least two membranes that block a similar number of apertures (4) in a box (1), characterised in that it comprises: connecting rod 6, the centre of which houses a single bearing (9) for each eccentric (8), through which referred shaft (5) passes, and at least two actuators (7) that join membranes (3) to connecting rod (6), with said actuators (7) articulated to connecting rod (6).

Description

  • This application is a U.S. National Phase under 35 USC 371 of PCT Application No. PCT/ES2009/070603 filed Dec. 17, 2009, the disclosure of which is incorporated by reference herein.
  • Vacuum, pressure or liquid pump, of the type that comprises driving means with a shaft connected to an eccentric, at least two membranes that block a similar number of apertures in a box, characterised in that it comprises: a connecting rod, in whose centre houses a single bearing for each eccentric through which the referred shaft passes and at least two actuators that join the membranes to the connecting rod, being said actuators articulating with the connecting rod.
    • BACKGROUND OF THE INVENTION
  • The use of pumps is known in the state of the art, with one or two heads, one on each side of the motor, or even two on the same side (opposite with traditional connecting rods and a similar number of bearings). If more extraction capacity is required additional, heads can be added, or they can be over-dimensioned, which involves the use of as many connecting rods, bearings and membranes as required heads, increasing sizes and motor powers.
  • Thus, Spanish utility model 0244030 “A DEPRESSION OR VACUUM MEMBRANE PUMP” is known from 1979, in the name of PIERBURG BMBH & CO.KG, which refers to a depression or vacuum membrane pump, especially for conditioning automobile elements, such as servo brakes, the membrane of which is operated from a main shaft via a connecting rod and the chamber that is next to the head is sealed against the atmosphere, the chamber is connecting with the atmosphere by means of at least one valve that allows access the air and prevents the air exit from chamber to the atmosphere. In a similar fashion another valve performs the same process to expulse the air.
  • It is known in the state of the art the document FR2049347, in the name of Albert Cozic, that refers to bilge pump for a boat or vessel of any type is provided which is operative in response to any movement of the boat in which the pump is provided, such as pitching or rolling. The pump includes preferably two or three diaphragm-type pumps mounted in a housing. A vertical shaft is rotatably mounted in a housing, the shaft is secured to an unbalanced mass exterior responsive to the movements of the boat to effect the rotation of the shaft. The end of the shaft remote from the end at which the mass is secured comprises an eccentric journal which is connected to a two- or three-arm member by a bearing and whose arms are in turn connected to the diaphragms for operating same successively to take in bilge water through intake pipes and valves and discharge same through outlet valves and pipes.
  • The driving means of pump are an unbalanced mass and do not comprise any motor. The movements of the mass depend on movements of the sea, which are variable by its nature. Actually, this document forms part of the prior art in respect to bilge pumps for a boat or vessel which are operative only in the sea.
    • DISCLOSURE OF THE INVENTION
  • This application is framed within the sector of vacuum, pressure and liquid pumps.
  • With this invention, the inventor intends to operate with a single connecting rod, more heads, in other words, using a single connecting rod, be able to place as many actuators with membranes as permitted the connecting rod size, so that, to larger size of the connecting rod, greater number of actuators can be operate. This results in economic savings for both the manufacturer and the end buyer.
  • This means that the need for independent regulation of force centring and work loads is eliminated. Currently, each head incorporated into the pump requires a different load point along the shaft for each one. This invention uses a single bearing for each eccentric on which point all forces are balanced and stabilised. This is because only one connecting rod is required independently of the number of heads.
  • Thus, greater performances are obtained with less space because a smaller pump can provide identical or even better results than larger pumps. Similarly, this means that this smaller size leads to significant space and weight savings.
  • In this way, the present pump can operate a determined number of membranes with the same connecting rod and all forces caused by the heads and membranes are centred with respect to each other at the same working point. When an expulsion force is generated, another intake force is produced at the opposite point, with these being equal at all cycle points.
  • One objective of this invention is a vacuum, pressure or liquid pump, of the type comprising driving means with a shaft connected to an eccentric, at least two membranes that block a similar number of apertures in a box, characterised in that it comprises: a connecting rod, the centre of which houses a single bearing for each eccentric through which the referred shaft passes and at least two actuators that join the membranes to the connecting rod, with said actuators articulating with the connecting rod.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • In order to facilitate the description, this report is accompanied by four sheets of drawings that represent a practical exemplary embodiment, which is given as an example that does not limit the scope of this invention.
  • FIG. 1 is a general view of the invention, in which the membranes and heads have been eliminated.
  • FIG. 2 is a close-up without the box, membranes and heads.
  • FIG. 3 is a close-up of an actuator, a part that is connected by means of a hinge joint to the connecting rod.
  • FIG. 4 is a side view of the invention applied to an end product.
    •  SPECIFIC EXEMPLARY EMBODIMENT OF THIS INVENTION
  • Thus, FIG. 1 illustrates a box 1, driving means or motor 2, apertures in the box 4, which houses the membranes and heads, a shaft 5, an eccentric 8, a connecting rod 6, actuators 7 and the connecting rod pass-through orifices 10 (at the actuator 7 positions).
  • FIG. 2 shows driving means 2, connecting rod 6, eccentric 8, shaft 5, connecting rod pass-through orifices 10 and actuators 7.
  • FIG. 3 illustrates the actuator 7 that is joined to the connecting rod via the actuator pass-through orifice 11, with a pin to form a hinge joint.
  • Lastly, FIG. 4 represents box 1, heads 3, box apertures 4, connecting rod 6, actuators 7, shaft 5, connecting rod pass-through orifices 10, pins 12 that form hinges joints and a bearing 9 housing the eccentric.
  • Thus, in a specific exemplary embodiment, the product is basically configured as follows: it comprises a box 1, driving means 2, with shaft 5 connected to eccentric 8, two membranes (as many as necessary, three, four, six, despite the fact that, although there are two in this embodiment, they cannot be seen because they are housed inside), which block the orifices in box 4 of cited box 1.
  • Regarding actuators 7 and the membranes, it is possible to configure as many as desired, starting with two by taking into account the positions of actuators 7 so that they compensate the forces as well as possible. For example, with three actuators 7, each one could be positioned at 120°, which would then largely balance the forces. Five actuators would be positioned every 72° and so on according to the desired number. The idea is to divide the circumference by the desired number of actuators 7.
  • Unlike known pumps, this invention includes a single bearing 9 for each eccentric 8.
  • It also comprises connecting rod 6, the centre of which houses a single bearing 9, through which the referred shaft 5 passes and at least two actuators 7 that connect the membranes housed inside heads 3 to connecting rod 6, with said actuators 7 articulating with connecting rod 6 by, for example, pins.
  • When motor 2 is switched on, it turns shaft 5 which, by means of eccentric 8 produces a similar movement of connecting rod 6.
  • Actuators 7 are articulated to connecting rod 6 by joints that employ pins 12 in this embodiment to form hinge joints.
  • Moreover, in this invention the connecting rods 6 partially house actuators 7 just as shown in FIGS. 1, 3 and 4. In this embodiment, connecting rod 6 articulates by means of a first pass-through orifice 10 through which actuator 7 passes, facing it via pin 12 (FIG. 4), which passes through actuator 7, leaving both pass-through orifices 10 and 11 aligned (FIGS. 1, 2 and 4).
  • This enables actuators 7 to continue pushing the membranes housed inside head 3 so that they continue to block and unblock the respective entrances and exits inside head 3. Even when the eccentric movement is produced, the connecting rod forces that the movement on the membrane is linear because actuator 7 articulation on connecting rod 6 allows any membranes position to be recovered while these maintain their respective positions over apertures 4.
  • In fact, connecting rod 6 becomes the connection between actuator 7 and bearing 9 and eccentric 8, thus permitting the membranes to work and adapt to any position as forced by the eccentric.
  • This invention patent describes a new vacuum, pressure or liquid pump. The exemplary embodiments descried here do not limit this invention, which can have various applications and/or adaptations within the scope of the following claims.

Claims (3)

1. A vacuum, pressure or liquid pump, of the type comprising driving means (2), with shaft (5), connected to an eccentric (8), at least two membranes that block a same number of apertures (4) in a box (1), characterised in that it comprises:
Single connecting rod (6), the centre of which houses a single bearing (9) for each eccentric (8), through which referred shaft (5) passes,
At least two actuators (7) that join membranes (3) to connecting rod (6), with said actuators (7) articulated to connecting rod (6), and
said driving means are a motor (2).
2. A pump, in accordance with claim 1 characterised in that connecting rod (6) partially houses actuators (7) and articulates with the same by means of a first pass-through orifice (10), through which connecting rod (6) passes, facing a second pass-through orifice (11), through which actuator (7) passes, so that both pass-through orifices (10, 11) are joined by a pin (12).
3. A pump, in accordance with claim 1 characterised in that actuators (7) are articulated in an equidistant manner from each other to the connecting rod (6).
US13/516,216 2009-12-17 2009-12-17 Vacuum, pressure or liquid pump Abandoned US20130039789A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070603 WO2011073464A1 (en) 2009-12-17 2009-12-17 Vacuum, pressure or liquid pump

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US20130039789A1 true US20130039789A1 (en) 2013-02-14

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EP (1) EP2514973B1 (en)
BR (1) BR112012014602A2 (en)
WO (1) WO2011073464A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016109658A1 (en) * 2014-12-30 2016-07-07 Graco Minnesota Inc. Pump rod and driving link with side-load reducing configuration
US11300112B2 (en) 2020-03-31 2022-04-12 Graco Minnesota Inc. Pump drive system
US11512694B2 (en) 2017-02-21 2022-11-29 Graco Minnesota Inc. Piston rod assembly for a fluid pump
WO2025026607A1 (en) * 2023-08-03 2025-02-06 Swoboda Wiggensbach KG Diaphragm pump, and tank leak diagnosis module with a diaphragm pump
US12366233B2 (en) 2020-03-31 2025-07-22 Graco Minnesota Inc. Electrically operated pump for a plural component spray system

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US11927183B2 (en) 2014-12-30 2024-03-12 Graco Minnesota Inc. Displacement pump mounting and retention
US11873810B2 (en) 2014-12-30 2024-01-16 Graco Minnesota Inc. Displacement pump mounting and retention
US10077771B2 (en) 2014-12-30 2018-09-18 Graco Minnesota, Inc. Integral mounting system on axial reciprocating pumps
US10094375B2 (en) 2014-12-30 2018-10-09 Graco Minnesota Inc. Self-aligning mounting and retention system
US10502206B2 (en) 2014-12-30 2019-12-10 Graco Minnesota Inc. Pump rod and driving link with side-load reducing configuration
US11035359B2 (en) 2014-12-30 2021-06-15 Graco Minnesota Inc. Displacement pump mounting and retention
US11286926B2 (en) 2014-12-30 2022-03-29 Graco Minnesota Inc. Pump rod and driving link with side-load reducing configuration
US12421960B2 (en) 2014-12-30 2025-09-23 Graco Minnesota Inc. Pump mounting and driving
US11396871B1 (en) 2014-12-30 2022-07-26 Graco Minnesota Inc. Displacement pump mounting and retention
US11927184B2 (en) 2014-12-30 2024-03-12 Graco Minnesota Inc. Displacement pump mounting and retention
US11530697B2 (en) 2014-12-30 2022-12-20 Graco Minnesota Inc. Displacement pump mounting and retention
US11732708B2 (en) 2014-12-30 2023-08-22 Graco Minnesota Inc. Displacement pump mounting and retention
CN107002665A (en) * 2014-12-30 2017-08-01 固瑞克明尼苏达有限公司 One-piece mounting system on axially reciprocating pumps
US11873809B2 (en) 2014-12-30 2024-01-16 Graco Minnesota Inc. Displacement pump mounting and retention
US12196200B2 (en) 2014-12-30 2025-01-14 Graco Minnesota Inc. Pump rod and driving link with side-load reducing configuration
US11891991B2 (en) 2014-12-30 2024-02-06 Graco Minnesota Inc. Displacement pump mounting and retention
WO2016109658A1 (en) * 2014-12-30 2016-07-07 Graco Minnesota Inc. Pump rod and driving link with side-load reducing configuration
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EP2514973B1 (en) 2021-03-31
EP2514973A1 (en) 2012-10-24
BR112012014602A2 (en) 2018-12-04

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