GB1015050A - Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors - Google Patents

Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors

Info

Publication number
GB1015050A
GB1015050A GB4929763A GB4929763A GB1015050A GB 1015050 A GB1015050 A GB 1015050A GB 4929763 A GB4929763 A GB 4929763A GB 4929763 A GB4929763 A GB 4929763A GB 1015050 A GB1015050 A GB 1015050A
Authority
GB
United Kingdom
Prior art keywords
valve plate
block
housing
drive shaft
plate assembly
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
GB4929763A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4929763A priority Critical patent/GB1015050A/en
Publication of GB1015050A publication Critical patent/GB1015050A/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
    • F01B3/007—Swash 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
    • F01B3/0044—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
    • F01B3/0076—Connection between cylinder barrel and inclined swash 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
    • F01B3/10—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

Landscapes

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

Abstract

1,015,050. Reciprocating motors and pumps. G. A. WAHLMARK. Dec. 13, 1963, No. 49297/63. Heading F1A. A variable displacement motor or pump, e.g. driven by a turbine, comprises a cylinder block 100 rotatably mounted on a valve plate 62 which slidably engages an arcuate housing face 71 for angular adjustment of the block and valve plate assembly relative to a drive shaft 11, hydraulic balancing being such that the block and valve plate are biased towards the housing face. In the Figs 2 and 4 embodiment, valve plate 62 is supported in housing tracks 69 by balls 63 lubricated by the inlet or outlet kidney ports 80, 81 through passages 85. Balls 63 may be mounted in housing face bores 74, Fig. 5, with shims 75 to take up sideways play in the valve plate. Spring washers on block support spindle 66 effect initial biasing of the block. In the Fig. 7 embodiment, initial biasing of the valve plate is effected by spring assemblies 415, and the valve plate is slidably located on the housing by a key 367 slidable in a keyway 369. Tilting of the block and valve plate assembly is effected by a piston and cylinder 59 positioned centrally or offset. The block and valve plate assembly may be tiltable about an axis above or below the drive shaft axis, so as to be biased towards either the maximum or minimum displacement positions, the tilting range also being sufficient to effect reversal of flow. Hydraulic biasing between the block and valve plate assembly and the housing is achieved by suitable dimensioning of lands 109, 113 and the cylinder ports. For synchronized rotation, block 100 has a ring gear 146 engaging teeth 147 in drive shaft flange 140. The thrust bearing assembly 165, Fig. 2, between the drive flange and the housing, comprises a spider with radial slots housing roller bearings 167 and ball bearings 182 held in place by a press fitted ring.
GB4929763A 1963-12-13 1963-12-13 Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors Expired GB1015050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4929763A GB1015050A (en) 1963-12-13 1963-12-13 Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4929763A GB1015050A (en) 1963-12-13 1963-12-13 Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors

Publications (1)

Publication Number Publication Date
GB1015050A true GB1015050A (en) 1965-12-31

Family

ID=10451861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4929763A Expired GB1015050A (en) 1963-12-13 1963-12-13 Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors

Country Status (1)

Country Link
GB (1) GB1015050A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158084A1 (en) * 1984-02-29 1985-10-16 Shimadzu Corporation Bent axis type axial piston pump or motor
FR2618856A1 (en) * 1987-07-31 1989-02-03 Linde Ag ADJUSTABLE AXIAL PISTON MACHINE OF THE CONSTRUCTION TYPE WITH OBLIQUE AXES HAVING A PIVOT TROLLEY HAVING AT LEAST ONE SUPPLEMENTARY PISTON

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158084A1 (en) * 1984-02-29 1985-10-16 Shimadzu Corporation Bent axis type axial piston pump or motor
FR2618856A1 (en) * 1987-07-31 1989-02-03 Linde Ag ADJUSTABLE AXIAL PISTON MACHINE OF THE CONSTRUCTION TYPE WITH OBLIQUE AXES HAVING A PIVOT TROLLEY HAVING AT LEAST ONE SUPPLEMENTARY PISTON

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