AU2011200105A1 - Gravity force drive pump - Google Patents

Abstract

Abstract Summary "Gravity Force Drive Pump" in summary it can be seen how the hydraulic pump design of the unique "Gravity Force Drive Pump" being a combination of a fluid under pressure and a balancing atmospheric gas pressure value in conjunction with a unique Telescopic Sliding Cylinder-Piston Assembly could be produced easily and economically. The fact that the "Gravity Force Drive Pump" will even recycle the system supply fluid producing energy and give a continuous recycling motion demonstrates that the Worlds energy and atmospheric pollution problems would be radically reduced. The abstract schematic drawing in Fig. 6. gives an example of how the "Gravity Force Drive Pump" may be used to power a water desalination plant to produce the Nations clean drinking water at drastically reduced power costs. The abstract schematic drawing in Fig. 7. gives an example of how the "Gravity Force Drive Pump" may be adapted to existing engine driven utilities whether desalination plants, water transference, electrical generators, mining equipment, marine equipment, defence force equipment, supply the energy required to trap fired coal waste, drastically reducing air pollution, less health problems together with lower freight, mining, farming, manufacturing and retail costs. The "Gravity Force Drive Pump" would give the advantage of setting an example to the World in cutting C02 emissions, developing waste land and restoring the enviroment. Abstract Summary "Gravity Force Drive Pump" Figure. 6. Abstract Schematic Example |Not to Scale Gravity Force Drive Pump -- out .out Ocean Pressure Descalination Unit o 0 0, Figure. 7. Abstract Schematic Example |Not to Scale Gravity Force Drive Pump o 00 Hydraulic Motor Electrical Generator 0U 0 0 Pre- Coupling charged, Pressure Vessel 10 01Accumulator

Description

Australia Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT GRAVITY FORCE DRIVE PUMP The invention is described in the following statement: 1. "Gravity Force Drive Pump" This "Gravity Force Drive Pump" invention relates to vast improvements in producing power through the combined use of an initial basic two pressure differential by the incorporation of a unique "Double Telescopic Cylinder Assembly" connected inline with one "Single Double acting hydraulic Cylinder" incorporating valving and piping to produce a new piston pump design. This invention utilises gravity which produces static pressure on a head of fluid or an artificial pressure to supply the energy required to operate. For mankind the energy required to pump large quantities of fluids has required the use of fossil fuels, and oil. More recently solar and nuclear energy. With the exception of solar energy the other fuels above, if not strictly controlled, create waste pollution now believed detrimental to health and the enviroment. Nuclear energy whilst giving tremendous power then requires further costly treatment and retains an extremely long, potentially dangerous life span. Other energy sources are reliant on the continued supply of fuels or an added means of storing the energy produced. It is a new alternate energy design which will drastically reduce the above resultant energy problems without the nesecesity of energy storage. The "Gravity Force Drive Pump" is a unique "Telescopic Piston Pump Design" consisting of appropriate sized pistons, cylinders, directional control valve, pressure relief valve, check valves, mechanical, hydraulic or electrical actuators, throttle valve and filter to direct the fluid flow to produce a recycling action, force and pressure required, dependent on input head pressure. Other than periodical maintenance of pump components maintenance is kept to a minimum with a quiet clean, environmently friendly, fluid or energy output. The system fluid pressure supply is constantly supplied to the Directional Control Valve. Throttle Valves may be fitted to the fluid supply and out lines to control the required rate of pump flow at any given time. The double acting Slave Cylinder is connected in a direct line with the Telescopic Cylinder-Piston Assemblies by an Adaptor Housing. The Slave Cylinder piston stroke and area may vary to fascilitate for increased volume resulting from larger Telescopic Sliding Cylinder-Piston areas and strokes required to attain higher forces, volumes, and pressures. The Telescopic Cylinder-Piston Assembly is a number of Sliding Piston-Cylinders which slide within each other inside the Outer Cylinder, which is fixed to the Adaptor Housing. The Telescopic Cylinder-Piston Assemblies are directly inline to the Slave Cylinder which is also fixed to the Adaptor Housing. The Sliding Piston-Cylinders have the same common piston area to each other which will be larger than the Slave Cylinder piston area. The Sliding Piston-Cylinders 2. "Gravity Force Drive Pump" have the same common piston stroke to each other but a direct fraction, per number of Sliding Piston-Cylinders in the Assembly, in relation to the to the full Slave Cylinder stroke. Overall the basic "Gravity Force Drive Pump" piston area ratios maybe; Telescopic Sliding Piston-Cylinder area, a ratio from two (2) upwards, to that of the Slave Cylinder piston area of one (1). The above ratios may vary depending on pressure and volume output required. A Directional Control Valve sequences the Sliding Piston-Cylinders forward and return strokes by directing supplied fluid pressure and fluid return flow. The Actuators required to trip the Directional Control Valve at the end of each stroke to sequence the pumping cycle maybe either mechanical, electrical or hydraulic. The Pressure Relief Valve controls the resultant high pressure to the system specifications required. The Check Valves allow fluid flow in one direction only whilst also separating high pressures from low pressures as required in the cycling sequence. A Filter of appropriate design and material for the fluid being pumped shall be fitted to the system fluid supply port of the Directional Control Valve. The construction materials for this invention will depend on the work application and enviromental conditions this invention will be required to operate in. For example, operating in salt water enviroments a stainless steel construction could be incorporated, in mobile operations aluminium or carbon steel. With low pressure and low forces a suitable plastic material. Even carbon fibres and ceramics could be incorporated for specialised requirements. The elements required to power this invention maybe a head of water under ocean pressure together with air or an inert gas to achieve a pressure differential, a head of fluid under gravity force together with air or an inert gas to achieve a pressure differential, or fluid under a supplied pressure such as an accumulator incorpor ating an inert gas such as nitrogen together with air or an inert gas to achieve a pressure differential.

3. Component Description "Gravity Force Drive Pump" Ident. No. Component Description O O Telescopic Cylinder Single acting piston Centre Piston Combined piston and cylinder unit Sliding Piston-Cylinder having same areas, volume and stroke but variable diameters. Outer Cylinder Single, fixed mounted cylinder. Slave Cylinder Double acting with double end rod. Check Valve One way, two port Check Valve. Throttle Valve Mechanical or Electrically Actuated Vent Vent allowing balanced air pressure to both sides of Telescopic Cylinders. Pressure Relief Valve Adjustable pressure relief valve for final delivery pressure required. Inlet Filter Mesh Filter Actuator Mechanical, electric or hydraulic Directional Control Valve Actuator. Adapter Housing Slave Cylinder to Telescopic multiple Cylinder Assembly Adapter Housing Directional Control Valve Two Position, Five Port, Five Way, I Mechanically or electrically Actuated Valve.

4. Working Description "Gravity Force Drive Pump" This invention is a "Piston Pump Circuit Design" which incorporates a unique Telescopic Sliding Cylinder-Piston Assembly, Fig. 1, assembled in multiples of Sliding Cylinder-Pistons. Each individual Sliding Cylinder-Piston, Fig. 2 and Fig. 3, incorporates the same stroke, area and volume of fluid per stroke. As the Slave Cylinder volume and individual Sliding Cylinder volume are the same, the Sliding Cylinder-Piston stroke is an exact fraction of the Slave Cylinder full stroke. Deviding the Slave Cylinder area into the Sliding Cylinder-Piston area will determine the number of Sliding Cylinder-Pistons required and strokes. All Sliding Cylinder-Pistons and Slave Cylinder-Piston will move similtaneously. The "Gravity Force Drive Pump" produces a continuous linea reciprocating piston motion as shown by the Schematic Hydraulic Circuits in Fig. 4 and Fig. 5. Fig. 4. The work cycle begins with Throttle Valves @2) and @ being actuated open, allowing a fluid pressure supply to Directional Control Valve ® which has been actuated into position by mechanical, electrical or hydraulic Actuator @. This directs a fluid pressure supply to act against and extend Sliding Cylinder Piston ® which similtaneously forces closed system fluids to act against and extend Sliding Cylinder-Piston , @ and Centre Piston (E which acts against and forces Slave Cylinder® piston to extend creating a high pressure which passes out through Check Valve @ and g. Check Valve ® stops high pressure fluid returning behind the Slave Cylinder ® piston and Check Valve @ stops high pressure fluid returning back to Directional Control Valve@. Similtaneously to the above Telescopic Sliding Cylinder-Piston Assembly extending, the horizontally opposed Telescopic Sliding Cylinder-Piston Assembly is retracted. This is achieved with the Slave Cylinder@ piston acting against and retracting Centre Piston C similtaneously forcing closed system fluid to act against and retract Sliding Cylinder-Pistons ®, ® and @. Similtaneously the fluid being ejected from fixed cylinder @ is directed by Directional Control Valve@ behind extending Slave Cylinder ® piston via Check Valve @. At the full extention of the Slave Cylinder ® piston stroke Actuator @ actuates Directional Control Valve @ to a cycle return situation with all horizontally opposed Telescopic Sliding Cylinder-Pistons ®, ®, @ and Centre Piston () fully retracted.

5. Working Description "Gravity Force Drive Pump" Fig. 5. The return half of the cycle begins with Throttle Valves @ and @3 already being actuated open, allowing a fluid pressure supply to Directional Control Valve ® which has been actuated into position by mechanical, electrical or hydraulic Actuator @. This directs a fluid pressure supply to act against and extend Sliding Cylinder-Piston & which similtaneously forces closed system fluids to act against and extend Sliding Cylinder-Piston ®, (a and Centre Piston (3 which acts against and forces Slave Cylinder® piston to retract creating a high pressure which passes out through Check Valve (3 and 8. Check Valve © stops high pressure fluid returning behind the Slave Cylinder@ piston and Check Valve @ stops high pressure fluid returning back to Directional Control Valve@. Similtaneously to the above Telescopic Sliding Cylinder-Piston Assembly extending, the horizontally opposed Telescopic Sliding Cylinder-Piston Assembly is retracted. This is achieved with the Slave Cylinder® piston acting against and retracting Centre Piston (D similtaneously forcing closed system fluid to act against and retract Sliding Cylinder-Pistons Q, (Dand 0. Similtaneously the fluid being ejected from fixed cylinder (S is directed by Directional Control Valve @ behind extending Slave Cylinder (piston via Check Valve (. At the full extention of the Slave Cylinder ® piston stroke Actuator @ actuates Directional Control Valve @ to a cycle return situation with all horizontally opposed Telescopic Sliding Cylinder-Pistons 63, ,3 and Centre Piston G1 fully retracted. The pumping cycle will now continually repeat untill Throttle Valve © or ( is closed. The Pressure Relief Valve 0@ maybe a fixed or adjustable pressure relief setting depending on system requirements for final delivery pressure required.

Claims (1)

10. Claims defining the invention "Gravity Force Drive Pump" 1. The twoTelescopic Cylinder-Piston Assemblies are identical containing a number of Sliding Piston-Cylinders which slide within each other inside the Outer Cylinder, which is fixed to the Adaptor Housing. The Telescopic Cylinder-Piston Assemblies are directly inline with the Slave Cylinder which is also fixed to the Adaptor Housing. The Sliding Piston-Cylinders have the same common piston area to each other which will be larger than the Slave Cylinder piston area. The Sliding Piston-Cylinders have the same common piston stroke to each other but their stroke is a direct fraction to the number of Sliding Piston-Cylinders in the Assembly relative to the full Slave Cylinder stroke. 2. The two Telescopic Cylinder-Piston Assemblies as claimed in claim 1, have the outer Cylinder-Pistons, separate to the inner piston, double acting and ported to allow sealed internal fluid to travel between Cylinder-Pistons producing the same common stroke which then gives the Telescopic Cylinder-Piston Assembly the same overall stroke as the Slave Cylinder full stroke. 3. The two Telescopic Cylinder-Piston Assemblies as claimed in claim 1, and claim 2, will have their foward faces of the Cylinder-Pistons closest to the centre Pistons, ported to atmosphere allowing a pressure differential enabling force. 4. The two Telescopic Cylinder-Piston Assemblies as claimed in claim 1, claim 2, and claim 3, will have their centre Pistons as just a single acting piston. 5. The Slave Cylinder as claimed in claim 1, and claim 2, will be fitted inline between the two Telescopic Cylinder-Piston Assemblies, be double acting and will hold the same volume of fluid as just one of the Telescopic Cylinder-Pistons volume. 6. The two position, five port, five way, Directional Control Valve will control the continuous recycling linear motion by directing external fluid pressure supply to act against the outer Telescopic Cylinder-Piston and forcing it to move and thus the other Telescopic Cylinder-Pistons to act against the Slave Cylinder producing a full stroke and a higher fluid pressure out. At the same time the Directional Control Valve allows the opposing outer Telescopic Cylinder-Piston fluid to return behind the Slave Cylinder's piston ready for the next cycle. 7. A Gravity Force Drive Pump can substantially as herein before described with references to figures 1 -6 of the accompanying drawings. Edna lbo Bartlett 10th January 2010