GB1458513A - Hydraulic circuits - Google Patents

Hydraulic circuits

Info

Publication number
GB1458513A
GB1458513A GB1553673A GB1553673A GB1458513A GB 1458513 A GB1458513 A GB 1458513A GB 1553673 A GB1553673 A GB 1553673A GB 1553673 A GB1553673 A GB 1553673A GB 1458513 A GB1458513 A GB 1458513A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
low
fluid
pump
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
GB1553673A
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.)
PRESSURE DYNAMICS Ltd
Original Assignee
PRESSURE DYNAMICS 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 PRESSURE DYNAMICS Ltd filed Critical PRESSURE DYNAMICS Ltd
Priority to GB1553673A priority Critical patent/GB1458513A/en
Publication of GB1458513A publication Critical patent/GB1458513A/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
    • F01L25/02—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
    • 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
    • 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
    • F04B9/113—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 a double-acting liquid motor
    • 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
    • F04B9/1172—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 the movement of each pump piston in the two directions being obtained by a double-acting piston liquid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

1458513 Hydraulic intensifiers PRESSURE DYNAMICS Ltd 1 April 1974 [30 March 1973] 15536/73 Heading F1D Apparatus for producing a substantially continuous supply of working liquid at high-pressure at a nozzle 83 comprises two double acting intensifiers 43, 50 which are operated alternately, the arrangement being such that whilst one intensifier is operating under the action of pressure fluid at a first pressure from a pump 12, one of the low-pressure chambers of the other intensifier is being supplied with fluid at a slightly lower pressure from a pump 13. A spool valve 20, controlled by a solenoid valve 85, supplies pressure fluid from the pump 12 alternately to either a spool valve 32 or a spool valve 36. Valves 32, 36, controlled by solenoid valves 86, 87 supply fluid to one or other of the low-pressure chambers 41, 42, 48, 49. The sequence of operations is controlled by limit switches 104, 105, 106, 107 operated by the low-pressure pistons 51, 58, and pressure switches 94, 95, which are operated when the spool of valve 20 reaches its extreme positions. When valves 32, 36 are in their intermediate positions as shown, pressure on either side of the low-pressure pistons is equalized through lines 39, 40 or 46, 47. Similarly pressure liquid is supplied simultaneously to both intensifiers by the valve 20 in the position shown to ensure a smooth change-over.
GB1553673A 1973-03-30 1973-03-30 Hydraulic circuits Expired GB1458513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1553673A GB1458513A (en) 1973-03-30 1973-03-30 Hydraulic circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1553673A GB1458513A (en) 1973-03-30 1973-03-30 Hydraulic circuits

Publications (1)

Publication Number Publication Date
GB1458513A true GB1458513A (en) 1976-12-15

Family

ID=10060863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1553673A Expired GB1458513A (en) 1973-03-30 1973-03-30 Hydraulic circuits

Country Status (1)

Country Link
GB (1) GB1458513A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104080A2 (en) * 1982-09-20 1984-03-28 Mining Developments Limited Continuous flow positive displacement pumps
GB2175352A (en) * 1985-05-14 1986-11-26 Coal Ind Hydraulic pulseless supply means
FR2689571A1 (en) * 1992-04-07 1993-10-08 Domine Sa Multi-piston pump for pumping liquid - uses dual piston pumps each with their own hydraulic actuator, with controller monitoring piston positions.
GB2275969A (en) * 1993-03-01 1994-09-14 Europ Gas Turbines Ltd Hydraulic intensifier
GB2403512A (en) * 2001-05-03 2005-01-05 Clear Well Subsea Ltd Hydraulic piston assembly
US7441993B2 (en) 2001-05-03 2008-10-28 Clear Well Subsea Limited Making connections to pipes under pressure
CN106481603A (en) * 2015-08-24 2017-03-08 晋中浩普液压设备有限公司 Twin-tub supertension automatic reciprocating booster
CN108953089A (en) * 2018-08-02 2018-12-07 日昌升集团有限公司 A kind of high-pressure slurry drug delivery pump system and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104080A2 (en) * 1982-09-20 1984-03-28 Mining Developments Limited Continuous flow positive displacement pumps
EP0104080A3 (en) * 1982-09-20 1984-09-05 Mining Developments Limited Continuous flow positive displacement pumps
GB2175352A (en) * 1985-05-14 1986-11-26 Coal Ind Hydraulic pulseless supply means
FR2689571A1 (en) * 1992-04-07 1993-10-08 Domine Sa Multi-piston pump for pumping liquid - uses dual piston pumps each with their own hydraulic actuator, with controller monitoring piston positions.
GB2275969A (en) * 1993-03-01 1994-09-14 Europ Gas Turbines Ltd Hydraulic intensifier
GB2275969B (en) * 1993-03-01 1997-09-17 Europ Gas Turbines Ltd Hydraulic intensifier
GB2403512A (en) * 2001-05-03 2005-01-05 Clear Well Subsea Ltd Hydraulic piston assembly
GB2403512B (en) * 2001-05-03 2005-07-06 Clear Well Subsea Ltd Hydraulic piston assembly
US7441993B2 (en) 2001-05-03 2008-10-28 Clear Well Subsea Limited Making connections to pipes under pressure
CN106481603A (en) * 2015-08-24 2017-03-08 晋中浩普液压设备有限公司 Twin-tub supertension automatic reciprocating booster
CN106481603B (en) * 2015-08-24 2018-04-10 晋中浩普液压设备有限公司 Twin-tub super-pressure automatic reciprocating booster
CN108953089A (en) * 2018-08-02 2018-12-07 日昌升集团有限公司 A kind of high-pressure slurry drug delivery pump system and method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee