GB1158906A - Positive displacement hydraulic pumps and motors. - Google Patents

Positive displacement hydraulic pumps and motors.

Info

Publication number
GB1158906A
GB1158906A GB4253765A GB4253765A GB1158906A GB 1158906 A GB1158906 A GB 1158906A GB 4253765 A GB4253765 A GB 4253765A GB 4253765 A GB4253765 A GB 4253765A GB 1158906 A GB1158906 A GB 1158906A
Authority
GB
United Kingdom
Prior art keywords
pump
recesses
fed
thrust
motor
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
GB4253765A
Inventor
Kenneth Raymond Boydell
Robert Charles Eeles
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.)
Dowty Technical Developments Ltd
Original Assignee
Dowty Technical Developments 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 Dowty Technical Developments Ltd filed Critical Dowty Technical Developments Ltd
Priority to GB4253765A priority Critical patent/GB1158906A/en
Publication of GB1158906A publication Critical patent/GB1158906A/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
    • F04B1/20—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
    • F04B1/2078—Swash plates
    • F04B1/2085—Bearings for swash plates or driving axles
    • 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
    • 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
    • F04B1/2071—Bearings for cylinder barrels
    • 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
    • F04B1/22—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 having two or more sets of cylinders or pistons

Landscapes

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

Abstract

1,158,906. Reciprocating pumps and motors. DOWTY TECHNICAL DEVELOPMENTS Ltd. Oct.27, 1966 [Oct. 7, 1965], No.42537/65. Heading F1A. In a pump or motor liquid under pressure from the high pressure passage 25 or 26 is fed to a recess or recesses 31 and 44 in plain bearings 27, 28, 29 and 41, 42, 43 supporting the rotary stub axle 21 and the shaft 18, respectively. Leakage liquid from the pump or motor is fed through the plain bearings, by means of the passages 36, 37, 38, 46 and 47, to a reservoir connection 35. The areas of the recesses 31 and 44 may be dimensioned to balance the resultant radial thrust transmitted to the axle 21 and shaft 18 from the pistons 4, 5. The thrust on the cylinder block 2 from the valve plate 23 may be balanced by the thrust produced by circular recesses 49 in a thrust bearing 48 fed with high-pressure liquid. A low pressure is maintained in the pump casing 1 by means of a relief valve 34. The pump or motor may be reversible and a shuttle valve is provided to connect the high pressure passage 25 or 26 to the balancing recesses.
GB4253765A 1965-10-07 1965-10-07 Positive displacement hydraulic pumps and motors. Expired GB1158906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4253765A GB1158906A (en) 1965-10-07 1965-10-07 Positive displacement hydraulic pumps and motors.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4253765A GB1158906A (en) 1965-10-07 1965-10-07 Positive displacement hydraulic pumps and motors.

Publications (1)

Publication Number Publication Date
GB1158906A true GB1158906A (en) 1969-07-23

Family

ID=10424859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4253765A Expired GB1158906A (en) 1965-10-07 1965-10-07 Positive displacement hydraulic pumps and motors.

Country Status (1)

Country Link
GB (1) GB1158906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031386A1 (en) * 1997-12-18 1999-06-24 Peter Kleinedler Swash plates for axial piston motors
FR2830903A1 (en) * 2001-10-15 2003-04-18 Hydro Techma Hydraulic swash plate pump has body enclosing barrel with bores in which pistons are installed, each piston in contact with swash plate and drive shaft engenders relative rotation between plates and barrel
US6675697B1 (en) 1998-12-07 2004-01-13 Apis Energy Gmbh Inclined plate for axial piston motors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031386A1 (en) * 1997-12-18 1999-06-24 Peter Kleinedler Swash plates for axial piston motors
US6675697B1 (en) 1998-12-07 2004-01-13 Apis Energy Gmbh Inclined plate for axial piston motors
FR2830903A1 (en) * 2001-10-15 2003-04-18 Hydro Techma Hydraulic swash plate pump has body enclosing barrel with bores in which pistons are installed, each piston in contact with swash plate and drive shaft engenders relative rotation between plates and barrel

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed