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GB1374538A - Piston pump - Google Patents

Piston pump

Info

Publication number
GB1374538A
GB1374538A GB986272A GB986272A GB1374538A GB 1374538 A GB1374538 A GB 1374538A GB 986272 A GB986272 A GB 986272A GB 986272 A GB986272 A GB 986272A GB 1374538 A GB1374538 A GB 1374538A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
motor
cylinder
stroke
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
GB986272A
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.)
Anderson Greenwood and Co
Original Assignee
Anderson Greenwood and Co
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 Anderson Greenwood and Co filed Critical Anderson Greenwood and Co
Publication of GB1374538A publication Critical patent/GB1374538A/en
Expired legal-status Critical Current

Links

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
    • 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
    • F04B9/105—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 reciprocating movement of the pumping member being obtained by a double-acting liquid motor
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/04—Draining
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes

Landscapes

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

Abstract

1374538 Reciprocating pumps and motors ANDERSON GREENWOOD & CO 2 March 1972 [8 April 1971] 9862/72 Heading F1A A pump piston 46 is reciprocated by a fluid motor piston 44, the pump piston stroke being adjusted independently of the motor piston stroke by axial adjustment of a threaded sleeve 52 on a piston rod 50 to provide lost motion between the pistons. Piston 44 is slidable on rod 50 and engages an abutment 54 to effect the discharge stroke, and engages sleeve 52, via spring-loaded bush 56, to effect the suction stroke. A cap 26 is removed for access to sleeve 52 and locknut 62. The pump cylinder has inlet and outlet check valves and a drain valve, Fig. 1 (not shown) the piston being sealed by a packing 68 with a drain 74. The motor distributor valve 28, Fig. 5 comprises a slide member 102 controlling flow through ports 130, 132, 134 leading to the opposite ends of the motor cylinder and an exhaust connection, valve chamber 98 being connected to a power fluid inlet 40. Valve member 102 is controlled by a piston 94 in a cylinder 92 connected at its ends to respective pilot valves 76, 78 operated at the end of each stroke by the motor piston 44 to vent the respective end of cylinder 92, and to cause piston 94 to reverse valve member 102. The pressure on either side of piston 94 then slowly builds up due to flow from supply port 40 via port 116, chamber 108 and restrictions 118, 120. The pressure in chamber 108 and spring 110 bias valve member 102 on to valve plate 88. The motor piston speed in either or both directions can be controlled by a throttle or throttle and check valve assembly in a line between one end of the motor cylinder and the distributor valve. Connection 114 to valve cylinder 92 leads to a start valve which is operated to vent one side of the valve cylinder to start the motor.
GB986272A 1971-04-08 1972-03-02 Piston pump Expired GB1374538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13235371A 1971-04-08 1971-04-08

Publications (1)

Publication Number Publication Date
GB1374538A true GB1374538A (en) 1974-11-20

Family

ID=22453629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB986272A Expired GB1374538A (en) 1971-04-08 1972-03-02 Piston pump

Country Status (4)

Country Link
AU (1) AU462023B2 (en)
CA (1) CA966721A (en)
DE (1) DE2212997A1 (en)
GB (1) GB1374538A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422819A1 (en) * 1993-06-29 1995-01-12 Yukihiko Karasawa High-pressure pump
WO2004111452A1 (en) * 2003-06-13 2004-12-23 Dietmar Kaiser Ag High-pressure pump
WO2008064376A3 (en) * 2006-11-21 2008-07-10 African Explosives Ltd Pumping arrangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029554A1 (en) * 1980-08-04 1982-03-11 Manfred 2000 Hamburg Berweger SYSTEM FOR PROMOTING TWO OR SEVERAL FLUID MEDIA UNDER HIGH PRESSURE IN AN ADJUSTABLE QUANTITY RATIO
US4347806A (en) * 1980-10-30 1982-09-07 Loctite Corporation Liquid dispensing apparatus
EP0070866A1 (en) * 1981-02-12 1983-02-09 Kingdom Engineering Co. Limited Fluid-pressure operated motors
IT1236898B (en) * 1989-12-20 1993-04-26 Tetra Dev Co DEVICE IN A PUMP UNIT

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422819A1 (en) * 1993-06-29 1995-01-12 Yukihiko Karasawa High-pressure pump
DE4422819B4 (en) * 1993-06-29 2005-08-04 Karasawa, Yukihiko, Ohmiya high pressure pump
WO2004111452A1 (en) * 2003-06-13 2004-12-23 Dietmar Kaiser Ag High-pressure pump
WO2008064376A3 (en) * 2006-11-21 2008-07-10 African Explosives Ltd Pumping arrangement
AP2544A (en) * 2006-11-21 2012-12-20 Ael Mining Services Ltd Pumping arrangement

Also Published As

Publication number Publication date
CA966721A (en) 1975-04-29
AU462023B2 (en) 1975-05-27
AU3988972A (en) 1973-09-13
DE2212997A1 (en) 1972-10-19

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Legal Events

Date Code Title Description
PS Patent sealed