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GB1506188A - Radial piston pump or motor - Google Patents

Radial piston pump or motor

Info

Publication number
GB1506188A
GB1506188A GB2661275A GB2661275A GB1506188A GB 1506188 A GB1506188 A GB 1506188A GB 2661275 A GB2661275 A GB 2661275A GB 2661275 A GB2661275 A GB 2661275A GB 1506188 A GB1506188 A GB 1506188A
Authority
GB
United Kingdom
Prior art keywords
pintle
casing
guide ring
ducts
bores
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
GB2661275A
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.)
Voith Getriebe KG
Original Assignee
Voith Getriebe KG
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
Priority claimed from DE19742430119 external-priority patent/DE2430119C3/en
Priority claimed from DE19752523124 external-priority patent/DE2523124A1/en
Application filed by Voith Getriebe KG filed Critical Voith Getriebe KG
Publication of GB1506188A publication Critical patent/GB1506188A/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
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/062—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders cylinder block and actuating or actuated cam both rotating
    • 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
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0675—Controlling
    • F01B1/0686—Controlling by changing the effective piston stroke
    • F01B1/0689—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0435—Particularities relating to the distribution members
    • F03C1/0438—Particularities relating to the distribution members to cylindrical distribution members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1506188 Hydraulic reciprocating pumps and motors VOITH GETRIEBE KG 23 June 1975 [22 June 1974 24 May 1975] 26612/75 Heading F1A A radial piston pump or motor comprises a casing 10, 1a, 11b mounting a control pintle 38, 39, 40, a cylinder block 13 rotatable on the pintle part 38, pistons 16 reciprocable in respective radial bores 15 in the block 13, a piston guide ring 20 rotatably mounted in the casing and having an inner periphery 21 composed of flat surfaces each contacted by a shoe 17 on the outer end of a respective piston, and opposed surfaces 42, 46 on the pintle part 40 and casing, respectively, the surfaces being separated by a hydrostatic bearing pad 50 and being positioned so as to oppose the force R representing the resultant of the hydrostatic forces acting on the pistons during operation. In the embodiment shown the pintle part 40 is rectangular in cross-section, the surface 42 and an opposed surface 43 thus being planar whereby the pintle is slidable between casing surfaces 46, 47 to adjust the eccentricity e between the axes 14, 25 of the pintle and guide ring 20. A bolt 60 movable by a handwheel or hydraulic cylinder causes movement of the pintle against a spring-loaded plunger 61. In a second embodiment, Figs. 7 and 8 (not shown), the pintle part 40 is cylindrical and is eccentric with respect to the part 38, whereby angular adjustment of the pintle changes the eccentricity e. Working fluid flows into and out of the bores 15 through slots 34, 35 in the pintle, the slots being connected by bores 36, 37 either to radially opening inlet and outlet ducts 18, 19 (as shown) or axially opening ducts, Figs. 6 and 7 (not shown). The resultant force D on the pintle due to the pressure in the ducts 18, 19 acting with the forces R, E produces only a slight turning moment on the pintle. The force D acts in an axial direction in the embodiment with axially opening ducts and is resisted by pressure pads (74, 75) between the surfaces 44, 48 of a flange part (139) of the pintle. A pressure pad 54 loads the pintle axially. Drive is transmitted between the guide ring 20 and a shaft 30 by a drive disc 32. Hydrostatic bearing pads 28 are provided for supporting the guide ring 20 in the casing 10.
GB2661275A 1974-06-22 1975-06-23 Radial piston pump or motor Expired GB1506188A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742430119 DE2430119C3 (en) 1974-06-22 1974-06-22 Hydrostatic radial piston machine
DE19752523124 DE2523124A1 (en) 1975-05-24 1975-05-24 Hydraulic motor or pump with radial pistons - balances radial forces with hydrostatic pressure field

Publications (1)

Publication Number Publication Date
GB1506188A true GB1506188A (en) 1978-04-05

Family

ID=25767312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2661275A Expired GB1506188A (en) 1974-06-22 1975-06-23 Radial piston pump or motor

Country Status (3)

Country Link
CH (1) CH592240A5 (en)
FR (1) FR2275640A1 (en)
GB (1) GB1506188A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112523985A (en) * 2020-11-23 2021-03-19 常志 Radial plunger pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877179A (en) * 1981-10-31 1983-05-10 Shimadzu Corp Rotary type fluid energy converter
CN109488689B (en) * 2018-11-26 2024-02-02 杭州电子科技大学 Bearing compensation device and method for air floatation spindle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112523985A (en) * 2020-11-23 2021-03-19 常志 Radial plunger pump

Also Published As

Publication number Publication date
FR2275640B1 (en) 1981-04-17
CH592240A5 (en) 1977-10-14
FR2275640A1 (en) 1976-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee