GB1419454A - Radial piston machine - Google Patents

Radial piston machine

Info

Publication number
GB1419454A
GB1419454A GB3499973A GB3499973A GB1419454A GB 1419454 A GB1419454 A GB 1419454A GB 3499973 A GB3499973 A GB 3499973A GB 3499973 A GB3499973 A GB 3499973A GB 1419454 A GB1419454 A GB 1419454A
Authority
GB
United Kingdom
Prior art keywords
recesses
ports
control ports
web
cylinder
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
GB3499973A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1419454A publication Critical patent/GB1419454A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01B1/0641—Details, component parts specially adapted for such machines
    • F01B1/0655—Details, component parts specially adapted for such machines cylinders

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

1419454 Reciprocating pumps and motors ROBERT BOSCH GmbH 23 July 1973 [22 July 1972] 34999/73 Heading F1A In a radial piston pump or motor comprising a cylinder block 5 rotatable on a fixed pintle valve 4 having high and low pressure control ports 21, 22 which successively communicate with cylinder ports 13, the control ports are separated by webs 29, 30 having balancing recesses 31-33 and 39-41 which cyclically communicate with the ports 13 and, with reference to the circumferential direction of the pintle, are laterally offset with respect to the control ports. Each cylinder port 13 has lateral grooves 14, 15 and these successively communicate with grooves 35-37 and ducts 45, 46, 49, 50 leading into the recesses. During part of the time each port 13 is in communication with a recess it is also in communication with one or other of the control ports 21, 22, either directly, or via a pilot groove 51 or 52. A second embodiment, Fig. 3 (not shown) has the recess and groove configuration of the web 29 shown, duplicated for the web 30. A third embodiment, Fig. 4 (not shown), has the recesses of each web arranged in two pairs, the recesses of each pair being laterally offset one behind the other in the lateral direction.
GB3499973A 1972-07-22 1973-07-23 Radial piston machine Expired GB1419454A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2236125A DE2236125A1 (en) 1972-07-22 1972-07-22 RADIAL PISTON MACHINE

Publications (1)

Publication Number Publication Date
GB1419454A true GB1419454A (en) 1975-12-31

Family

ID=5851440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3499973A Expired GB1419454A (en) 1972-07-22 1973-07-23 Radial piston machine

Country Status (7)

Country Link
US (1) US3874272A (en)
JP (1) JPS4945406A (en)
CH (1) CH562954A5 (en)
DE (1) DE2236125A1 (en)
FR (1) FR2194225A5 (en)
GB (1) GB1419454A (en)
IT (1) IT991264B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628794A (en) * 1978-05-30 1986-12-16 Karl Eickmann Control-pintle for fluid flow devices
US4730546A (en) * 1978-05-30 1988-03-15 Karl Eickmann Rotor bush assembly in fluid machines
US4489641A (en) * 1978-05-30 1984-12-25 Karl Eickmann Rotor bush assembly in fluid machines
DE3641955A1 (en) * 1986-12-09 1988-06-23 Bosch Gmbh Robert PISTON MACHINE (PUMP OR MOTOR)
DE3816998A1 (en) * 1988-05-19 1989-11-30 Bosch Gmbh Robert DEVICE WITH A RADIAL PISTON DEVICE, IN PARTICULAR RADIAL PISTON PUMP, MOTOR OD. DGL.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944529A (en) * 1956-08-11 1960-07-12 Reiners Walter Rotary slide valves for hydraulic piston machines
US3082696A (en) * 1959-09-30 1963-03-26 North American Aviation Inc Hydraulic pump or motor
FR1313768A (en) * 1961-08-19 1963-01-04 Rech Etudes Prod Improvement in hydraulic pumps and motors with multiple cylinders, especially of the barrel type
US3199461A (en) * 1963-05-27 1965-08-10 Cessna Aircraft Co Hydraulic pump or motor
GB1108554A (en) * 1964-07-03 1968-04-03 Dowty Technical Dev Ltd Improvements in hydraulic reciprocating pumps and motors
US3369458A (en) * 1966-07-05 1968-02-20 Dowty Technical Dev Ltd Hydraulic apparatus

Also Published As

Publication number Publication date
FR2194225A5 (en) 1974-02-22
DE2236125A1 (en) 1974-02-07
JPS4945406A (en) 1974-04-30
IT991264B (en) 1975-07-30
CH562954A5 (en) 1975-06-13
US3874272A (en) 1975-04-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]