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GB1213662A - Swash plate pumps and motors - Google Patents

Swash plate pumps and motors

Info

Publication number
GB1213662A
GB1213662A GB43716/67A GB4371667A GB1213662A GB 1213662 A GB1213662 A GB 1213662A GB 43716/67 A GB43716/67 A GB 43716/67A GB 4371667 A GB4371667 A GB 4371667A GB 1213662 A GB1213662 A GB 1213662A
Authority
GB
United Kingdom
Prior art keywords
plate
casing
swash
block
engagement
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
GB43716/67A
Inventor
Kenneth Raymond Boydell
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 DE19681653418 priority Critical patent/DE1653418B2/en
Priority to DK56068A priority patent/DK123787B/en
Priority to JP43009202A priority patent/JPS526485B1/ja
Priority to FR1554491D priority patent/FR1554491A/fr
Priority to SE235868A priority patent/SE340565B/xx
Priority to JP5070170A priority patent/JPS5340724B1/ja
Publication of GB1213662A publication Critical patent/GB1213662A/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
    • F01B3/0064—Machine housing
    • F01B3/0067—Machine housing cylinder barrel bearing means
    • 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
    • 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
    • F01B3/0082—Details
    • F01B3/0085—Pistons
    • F01B3/0088—Piston shoe retaining means
    • 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
    • F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate

Landscapes

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

Abstract

1,213,662. Hydraulic reciprocating pumps and motors. DOWTY TECHNICAL DEVELOPMENTS Ltd. Dec.27, 1967 [Feb.23, 1967; Sept.26, 1967], Nos.8709/67 and 43716/67. Heading F1A. A swash-plate pump or motor comprises an integral casting, e.g. of aluminium alloy, forming an open-ended casing 7 and a valve face 2, a cylinder block 8, e.g. of cast iron, being located in the casing by engagement with valve face 2 and by engagement of a bearing surface 14 in the casing with a bearing surface 13 on the block. Integral lugs 18 on the casing have apertures for one or more shafts 19 carrying the swash-plate 21, which may be of fixed or adjustable inclination. Spring- loaded pistons 25 engage the swash-plate through ball jointed slippers 29, which may be hydraulically balanced and are held against the swash-plate by a retaining plate 36. A spring 43 acts to bias plate 36 towards the swash-plate and block 8 towards the valve face. As a pump, the unit is immersed in a reservoir and supported by bolts engaging threaded apertures in end 6 of the casing. Liquid enters the open end of the casing and is pressurized by centrifugal action while passing through block passages 15 and casing space 16, which may have a guide vane. From space 16, the liquid enters a recess 17 in registration with cylinder ports 12. The liquid is discharged through port 3. A splined aperture 45 is provided for engagement by a drive shaft, e.g. of an electric motor. Assembly is effected by inserting the block in the casing, inserting the piston assemblies and plate 36, locating swash-plate 21 in position, and inserting shaft 19 through lugs 18 and the swash-plate, the shaft axis being offset from the block axis. Spring clips hold shaft 19 in position Fig.2 (not shown). For motor operation, port 3 is used for the highpressure supply and means other than passages 15 are provided for the discharged liquid.
GB43716/67A 1967-02-23 1967-02-23 Swash plate pumps and motors Expired GB1213662A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19681653418 DE1653418B2 (en) 1967-02-23 1968-01-04 Swashplate bearings for axial piston machines
DK56068A DK123787B (en) 1967-02-23 1968-02-13 Hydraulic machine, such as a pump or motor.
JP43009202A JPS526485B1 (en) 1967-02-23 1968-02-15
FR1554491D FR1554491A (en) 1967-02-23 1968-02-22
SE235868A SE340565B (en) 1967-02-23 1968-02-23
JP5070170A JPS5340724B1 (en) 1967-02-23 1970-06-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB870967 1967-02-23

Publications (1)

Publication Number Publication Date
GB1213662A true GB1213662A (en) 1970-11-25

Family

ID=9857736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43716/67A Expired GB1213662A (en) 1967-02-23 1967-02-23 Swash plate pumps and motors

Country Status (2)

Country Link
US (1) US3626816A (en)
GB (1) GB1213662A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8997480B1 (en) 2010-03-30 2015-04-07 Hydro-Gear Limited Partnership Drive assembly and transmission
US8984871B1 (en) 2010-12-23 2015-03-24 Hydro-Gear Limited Partnership Transmission assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714148A (en) * 1927-12-21 1929-05-21 Weldy Arthur Sheldon Pump
US2129828A (en) * 1935-07-05 1938-09-13 Chrysler Corp Pump
US2486690A (en) * 1945-01-18 1949-11-01 Tipton Elizabeth Barrett Hydraulic unit
US2608159A (en) * 1945-02-02 1952-08-26 Denison Eng Co Hydraulic apparatus
DE1030683B (en) * 1953-08-31 1958-05-22 Heinrich Ebert Dr Ing Hydrostatic piston engine
US2915974A (en) * 1956-07-28 1959-12-08 Danfoss Ved Ingenior Mads Clau Double-acting rotary piston pump
US3108544A (en) * 1960-04-25 1963-10-29 American Brake Shoe Co Hydraulic pumps
US3266434A (en) * 1964-04-10 1966-08-16 Webster Electric Co Inc Variable output pump
US3274949A (en) * 1964-08-10 1966-09-27 Hydraulic Drive A G Axial piston pump or motor
US3371616A (en) * 1965-06-18 1968-03-05 Gunnar A. Wahlmark Fluid device
US3396670A (en) * 1966-10-10 1968-08-13 Sundstrand Corp Hydraulic pump or motor

Also Published As

Publication number Publication date
US3626816A (en) 1971-12-14

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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