GB1284310A - Improvements relating to fluid pumping systems - Google Patents

Improvements relating to fluid pumping systems

Info

Publication number
GB1284310A
GB1284310A GB29053/70A GB2905370A GB1284310A GB 1284310 A GB1284310 A GB 1284310A GB 29053/70 A GB29053/70 A GB 29053/70A GB 2905370 A GB2905370 A GB 2905370A GB 1284310 A GB1284310 A GB 1284310A
Authority
GB
United Kingdom
Prior art keywords
pump
pass
valve
swash
plate
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
GB29053/70A
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.)
Task Corp
Original Assignee
Task Corp
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 Task Corp filed Critical Task Corp
Publication of GB1284310A publication Critical patent/GB1284310A/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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2064—Housings
    • 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
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F04B49/22—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 means of valves
    • F04B49/24—Bypassing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1284310 Reciprocating pumps TASK CORP 16 June 1970 [25 June 1969] 29053/70 Heading F1A A pump 13 has a by-pass 40, 40a controlled by a valve 41 controlled by the pump swash-plate 31 so that as the swash-plate is moved to reduce the pump output, the by-pass is opened, and vice versa. The pump casing interior 55 has a drain connection 54 leading to the pump inlet 17. A pressure-relief valve 60 connects the by-pass line line to casing interior 55, e. g. when a filter in the by-pass line becomes blocked. The swashplate is adjusted by a manual or other control 44 acting on by-pass valve extension 37, discharge pressure in passage 47 also acting on extension 37 to at least partly counterbalance spring 35. When the discharge pressure rises above a predetermined level, it moves valve 70a, 70b downwardly and acts via passage 76 on by-pass valve piston 36a to reduce the swash-plate inclination. A flow restriction 53 is provided in the by-pass line 40. A system incorporating the pump, Fig. 3 (not shown), comprises fluid utilization equipment connected to the pump outlet. The equipment discharge and the by-pass line are connected through filters to a fluid supply reservoir.
GB29053/70A 1969-06-25 1970-06-16 Improvements relating to fluid pumping systems Expired GB1284310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83631269A 1969-06-25 1969-06-25

Publications (1)

Publication Number Publication Date
GB1284310A true GB1284310A (en) 1972-08-09

Family

ID=25271693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29053/70A Expired GB1284310A (en) 1969-06-25 1970-06-16 Improvements relating to fluid pumping systems

Country Status (4)

Country Link
JP (1) JPS4812882B1 (en)
DE (1) DE2030844A1 (en)
FR (1) FR2052832A5 (en)
GB (1) GB1284310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869285A3 (en) * 1997-04-04 1999-09-22 Brueninghaus Hydromatik Gmbh Load sensing control with flushing circuit
CN117662412A (en) * 2024-01-30 2024-03-08 四川省宜宾普什驱动有限责任公司 High-pressure-resistant high-precision plunger type hydraulic pump and working method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004455A1 (en) * 1984-03-29 1985-10-10 Zahnradfabrik Friedrichshafen Ag Hydraulic system for vehicles
DE3627375A1 (en) * 1986-08-12 1988-02-18 Man Nutzfahrzeuge Gmbh Adjusting device for an axial-piston slant-axle hydraulic control unit
US4729717A (en) * 1986-12-24 1988-03-08 Vickers, Incorporated Power transmission
DE102020211288A1 (en) 2020-02-13 2021-08-19 Robert Bosch Gesellschaft mit beschränkter Haftung Hydraulic drive system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869285A3 (en) * 1997-04-04 1999-09-22 Brueninghaus Hydromatik Gmbh Load sensing control with flushing circuit
CN117662412A (en) * 2024-01-30 2024-03-08 四川省宜宾普什驱动有限责任公司 High-pressure-resistant high-precision plunger type hydraulic pump and working method thereof
CN117662412B (en) * 2024-01-30 2024-04-02 四川省宜宾普什驱动有限责任公司 High-pressure-resistant high-precision plunger type hydraulic pump and working method thereof

Also Published As

Publication number Publication date
FR2052832A5 (en) 1971-04-09
DE2030844A1 (en) 1971-01-07
JPS4812882B1 (en) 1973-04-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee