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GB1324756A - Axial piston machine - Google Patents

Axial piston machine

Info

Publication number
GB1324756A
GB1324756A GB369572A GB369572A GB1324756A GB 1324756 A GB1324756 A GB 1324756A GB 369572 A GB369572 A GB 369572A GB 369572 A GB369572 A GB 369572A GB 1324756 A GB1324756 A GB 1324756A
Authority
GB
United Kingdom
Prior art keywords
bores
bore
pump
cylinder bores
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
GB369572A
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 GB1324756A publication Critical patent/GB1324756A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2042—Valves
    • 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

Landscapes

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

Abstract

1324756 Reciprocating pumps ROBERT BOSCH GmbH 26 Jan 1972 [3 Feb 1971] 3695/72 Heading F1A In an axial piston pump, including a casing 1, splined drive-shaft 3 and a rotating cylinder block 6 containing longitudinal bores 8 in which pistons 9 reciprocate due to the bearing of their sliding shoes 10 on an inclined swash plate 11, the kidney shaped inlet and outlet apertures 24 and 25 for a pressure medium provided in a valve plate 21 communicate with the openings 16 of the rotating cylinder bores 8. Opposed bores 30, 31 are provided in the web portions of the valve plate between the apertures 24, 25, which bores 30, 31 are inter-connected by a duct 33 formed in part by a sealed groove 34 on the inner periphery of the valve plate. The diameter of each bore 30, 31 is no greater than the distance between the openings of adjacent cylinder bores e.g. 8a, 8b, whilst the arcuate length of each web between the apertures 24, 25 is not less than twice the maximum width of the openings into the cylinder bores plus the diameter of a bore 30 or 31. Therefore, in operation of a pump with an odd number of cylinder bores, pressure medium in the deed volume of any bore, e.g. 8f, passing from the high to the lowpressure side of the pump, successively pressurises two bores, e.g. 8b, 8a, passing from the low to the high-pressure side, as these cylinder bores communicate via bores 30, 31 and duct 33. In a pump having an even number of cylinder bores, each bore similarly pressurises just the opposed cylinder bore as it passes from the high to the low-pressure side of the pump.
GB369572A 1971-02-03 1972-01-26 Axial piston machine Expired GB1324756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712104933 DE2104933A1 (en) 1971-02-03 1971-02-03 Axial piston machine

Publications (1)

Publication Number Publication Date
GB1324756A true GB1324756A (en) 1973-07-25

Family

ID=5797670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB369572A Expired GB1324756A (en) 1971-02-03 1972-01-26 Axial piston machine

Country Status (4)

Country Link
CH (1) CH529291A (en)
DE (1) DE2104933A1 (en)
FR (1) FR2125036A5 (en)
GB (1) GB1324756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004027267A1 (en) * 2002-09-11 2004-04-01 Bosch Rexroth Ag Hydro transformer
EP3056727A1 (en) * 2015-02-11 2016-08-17 Danfoss A/S Hydraulic machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333380C2 (en) * 1973-06-30 1982-04-08 Eckhard 7120 Bietigheim Aschke Hydraulic machine
DE102020212630A1 (en) 2020-10-07 2022-04-07 Robert Bosch Gesellschaft mit beschränkter Haftung Hydrostatic axial piston machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004027267A1 (en) * 2002-09-11 2004-04-01 Bosch Rexroth Ag Hydro transformer
EP3056727A1 (en) * 2015-02-11 2016-08-17 Danfoss A/S Hydraulic machine
US10385887B2 (en) 2015-02-11 2019-08-20 Danfoss A/S Hydraulic machine

Also Published As

Publication number Publication date
CH529291A (en) 1972-10-15
FR2125036A5 (en) 1972-09-22
DE2104933A1 (en) 1972-08-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees