GB1089661A - Improvements relating to reciprocating pumps - Google Patents

Improvements relating to reciprocating pumps

Info

Publication number
GB1089661A
GB1089661A GB13958/63A GB1395863A GB1089661A GB 1089661 A GB1089661 A GB 1089661A GB 13958/63 A GB13958/63 A GB 13958/63A GB 1395863 A GB1395863 A GB 1395863A GB 1089661 A GB1089661 A GB 1089661A
Authority
GB
United Kingdom
Prior art keywords
liquid
exhaust
supply
accumulators
actuating
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.)
Expired
Application number
GB13958/63A
Inventor
Hew Dalrymple Fanshaw
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.)
FNRD Ltd
Original Assignee
FNRD Ltd
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 FNRD Ltd filed Critical FNRD Ltd
Priority to GB13958/63A priority Critical patent/GB1089661A/en
Priority to DE19641453500 priority patent/DE1453500A1/en
Priority to US545230A priority patent/US3303786A/en
Publication of GB1089661A publication Critical patent/GB1089661A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/08—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-rod
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0033—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a mechanical spring
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F04B11/0075—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons connected in series
    • 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
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/107—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring
    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/117—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Landscapes

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

Abstract

1,089,661. Reciprocating pumps. F.N.R.D. Ltd. April 8, 1964 [April 8, 1963], No. 13958/63. Heading F1A. Delivery and suction accumulators 9 and 16 are connected to the outlet 8 and inlet 19 of an hydraulically-actuated piston pump 1, 2 to provide continuity of supply and delivery. The accumulator pistons 10 and 17 are biased by the supply and exhaust pressure, respectively, of the actuating liquid, e.g. oil, and by springs 11 and 18. The supply and exhaust of actuating liquid to the pump 1, 2 is controlled electrically by piston operated contacts 3, 4 actuating valve 5. In a further embodiment, Fig. 2 (not shown), a pump (21) having a pair of linked pistons (22, 23) is connected to delivery and suction accumulators (42 and 42) having connected pistons (38 and 39) biased by a common spring (44). The linked pistons (22, 23) operate spool valves (27 and 28) controlling the supply and exhaust of actuating liquid and the inlets and outlets from the piston cylinders are connected in parallel. In another embodiment, Fig. 3 (not shown), two pairs of diaphragms (101) are actuated through bodies of liquid by hydraulic motors (102) having pairs of linked pistons. The inlets and outlets of the diaphragm pumps are connected in parallel and suction and delivery accumulators are provided for each pair of pumps. The accumulators are biased by the supply and exhaust pressures of the motor actuating liquid and by adjustable pneumatic pressure. The actuating liquid for the motors (102) may be supplied in parallel or in series. With the motors operating in series liquid is exhausted from one motor and supplied to the second and the pressure drop from inlet to exhaust in the motors is the same for each motor. With this arrangement the inlet pressure for the first motor in series is substantially twice that for the second and the flow of actuating liquid is substantially half that required for parallel operation. The sides of accumulators operating on pumped medium are separated therefrom by means diaphragms acting through bodies of trapped liquid. To reduce hammer in the valves controlling the supply and exhaust of actuating liquid they may be operated slowly to give extended reversal periods.
GB13958/63A 1963-04-08 1963-04-08 Improvements relating to reciprocating pumps Expired GB1089661A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB13958/63A GB1089661A (en) 1963-04-08 1963-04-08 Improvements relating to reciprocating pumps
DE19641453500 DE1453500A1 (en) 1963-04-08 1964-04-07 Hydraulically operated piston pump
US545230A US3303786A (en) 1963-04-08 1966-04-22 Hydraulic pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13958/63A GB1089661A (en) 1963-04-08 1963-04-08 Improvements relating to reciprocating pumps

Publications (1)

Publication Number Publication Date
GB1089661A true GB1089661A (en) 1967-11-01

Family

ID=10032459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13958/63A Expired GB1089661A (en) 1963-04-08 1963-04-08 Improvements relating to reciprocating pumps

Country Status (3)

Country Link
US (1) US3303786A (en)
DE (1) DE1453500A1 (en)
GB (1) GB1089661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119865A (en) * 1982-03-27 1983-11-23 John Harbridge Piston pump or transformer

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405639A (en) * 1966-06-09 1968-10-15 Tempcraft Tool & Mold Wax injection machine
US3470706A (en) * 1967-10-16 1969-10-07 Mitchell Co John E Machine for making carbonated desserts
JPS4982304U (en) * 1972-11-02 1974-07-17
JPS50136002U (en) * 1974-04-23 1975-11-10
US4750869A (en) * 1984-05-09 1988-06-14 Booster Technologies, Inc. Method and apparatus for boosting gas from a low-pressure source to a high-pressure receptacle
US5169295A (en) * 1991-09-17 1992-12-08 Tren.Fuels, Inc. Method and apparatus for compressing gases with a liquid system
US20090191068A1 (en) * 2008-01-29 2009-07-30 Clark Equipment Company Variable volume reservoir
JP6529979B2 (en) * 2013-10-29 2019-06-12 サームテック・ホールディングス・アーエス System for the supply and delivery of difficult to deliver substances in pipelines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711697A (en) * 1951-01-12 1955-06-28 Lloyd T Gibbs Variable capacity pump
US3168045A (en) * 1961-09-13 1965-02-02 Sebastiani Martin Pump for thick materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119865A (en) * 1982-03-27 1983-11-23 John Harbridge Piston pump or transformer

Also Published As

Publication number Publication date
US3303786A (en) 1967-02-14
DE1453500A1 (en) 1969-03-13

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