GB1263081A - Hydraulic pumps and motors - Google Patents

Hydraulic pumps and motors

Info

Publication number
GB1263081A
GB1263081A GB441268A GB441268A GB1263081A GB 1263081 A GB1263081 A GB 1263081A GB 441268 A GB441268 A GB 441268A GB 441268 A GB441268 A GB 441268A GB 1263081 A GB1263081 A GB 1263081A
Authority
GB
United Kingdom
Prior art keywords
block
rotation
motor
pump
rotatable
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
GB441268A
Inventor
Richard Joseph Ifield
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB441268A priority Critical patent/GB1263081A/en
Publication of GB1263081A publication Critical patent/GB1263081A/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
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/0055—Valve means, e.g. valve plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0035—Reciprocating-piston machines or engines with 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
    • F01B3/0038—Reciprocating-piston machines or engines with 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 inclined to main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/10—Control of working-fluid admission or discharge peculiar thereto
    • F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
    • F01B3/109—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/08—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders

Landscapes

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

Abstract

1,263,081. Hydrostatic transmission. JOSEPH LUCAS (INDUSTRIES) Ltd. 11 April, 1969 [29 Jan., 1968], No. 4412/68. Heading F2C. [Also in Division F1] A pump or motor, Fig. 1, comprises a rotary cylinder block 15 having pistons 14 working in cylinders in the block and connected by universal couplings 13 to a member 11 rotatable about a fixed axis 23, the inclination of the block 15 being adjustable by angular rotation of a ported part 18 having an inclined axis of rotation 20 and an off-set inclined surface 17 abutting the block. The block is mounted for rotation on a spindle 19 on the part 18, which part is provided with kidney-shaped cylinder inlet and outlet parts. Rotation of the part 18 alters both the piston's stroke and the port timing. In Fig. 12, a motor and pump constructed as in Fig. 1 are mounted together to form a hydrostatic transmission. A common ported part 33 is provided, the part having inclined surfaces 32, 47 engaging the ends of cylinder blocks 29, 45. The part 33 is rotatable by longitudinal movement of a rack 53 engaging teeth on the part 33, whereby simultaneous stroke and part timing adjustment of the motor and pump are effected. Leakage from the cylinders passes through passages 51, 52.
GB441268A 1968-01-29 1968-01-29 Hydraulic pumps and motors Expired GB1263081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB441268A GB1263081A (en) 1968-01-29 1968-01-29 Hydraulic pumps and motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB441268A GB1263081A (en) 1968-01-29 1968-01-29 Hydraulic pumps and motors

Publications (1)

Publication Number Publication Date
GB1263081A true GB1263081A (en) 1972-02-09

Family

ID=9776719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB441268A Expired GB1263081A (en) 1968-01-29 1968-01-29 Hydraulic pumps and motors

Country Status (1)

Country Link
GB (1) GB1263081A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4279194A (en) * 1978-11-30 1981-07-21 Stabilimenti Meccanici Vm S.P.A. Hydrostatic unit with axial pistons having a variable stroke volume
WO1998049466A1 (en) * 1997-04-29 1998-11-05 General Dynamics Land Systems, Inc. Swashplate assemblies for infinitely variable hydrostatic transmissions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4279194A (en) * 1978-11-30 1981-07-21 Stabilimenti Meccanici Vm S.P.A. Hydrostatic unit with axial pistons having a variable stroke volume
WO1998049466A1 (en) * 1997-04-29 1998-11-05 General Dynamics Land Systems, Inc. Swashplate assemblies for infinitely variable hydrostatic transmissions
US5896745A (en) * 1997-04-29 1999-04-27 General Dynamics Defense Systems, Inc. Swashplate assemblies for infinitely variable hydrostatic transmissions

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