GB1355002A - Axial piston machine - Google Patents

Axial piston machine

Info

Publication number
GB1355002A
GB1355002A GB151572A GB151572A GB1355002A GB 1355002 A GB1355002 A GB 1355002A GB 151572 A GB151572 A GB 151572A GB 151572 A GB151572 A GB 151572A GB 1355002 A GB1355002 A GB 1355002A
Authority
GB
United Kingdom
Prior art keywords
duct
control plate
trunion
lubricating
pump
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
GB151572A
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 GB1355002A publication Critical patent/GB1355002A/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
    • 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
    • F01B3/007—Swash plate
    • F01B3/0073—Swash plate swash plate bearing means or driving or driven axis bearing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0469—Other heavy metals
    • F05C2201/0475—Copper or alloys thereof
    • F05C2201/0478—Bronze (Cu/Sn alloy)

Landscapes

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

Abstract

1355002 Axial piston pumps ROBERT BOSCH GmbH 12 Jan 1972 [12 Jan 1971] 1515/72 Heading F1A An axial piston pump includes a fluid inlet 41, fluid outlet 42 (or vice versa), and pistons 9 which slide in bores 8 in a rotating cylinder drum 7, driven by a shaft 3. The ends of the pistons are supported by sliding pads 10 which slide around the surface 11 of a control plate 12, the tilt of which may be varied by rod 20 and piston 19 to adjust the stroke of the pistons 9. A recess 15 in each of the pads 10 communicates with its associated bore 8, so that fluid to be pumped may form a hydrostatic bearing between the pad 10 and the surface 11. Lubricating ducts 48 extend from that part of the surface 11 traversed by the sliding pads 10 to grooves in the back bearing surface 18 of control plate 12, so that fluidpressure zones will be periodically created and subsequently decay at the back bearing surface as the fluid filled recesses 15 sweep over the lubricating duct inlets in surface 11. This allows easy adjustment of the control plate 12. In modifications adjacent pairs of lubricating ducts may be provided Fig. 3 (not shown), the lubricating duct may include a non-return valve and a reservoir containing a spring piston whereby the life of the pressure zone may be prolonged, Fig. 4 (not shown), or the control plate back bearing surface may include flattened portions Figs. 5a, 5b (not shown). In pump constructions in which a flat tilting control plate 95, Fig. 8 mounted on bearing trunions 96, 99 is utilized, the lubricating ducts 103, 104 extend through the plate to form the pressure zones on the trunion peripheries. As shown each duct feeds at least one pressure zone on each trunion, the arrangement preferably being such that the duct e.g. 104 aligned with the pump delivery side communicates with a pressure zone of higher capacity on the trunion on the delivery side of the pump and with lower capacity zone(s) on the other trunion. In a modification Fig. 9 (not shown) for use in a non- reversible pump, the lubricating duct inlets are so located in the sliding surface of the control plate as to be simultaneously covered for a time by a single sliding pad, the duct inlet feeding the delivery side trunion being covered however for longer than the other duct inlet.
GB151572A 1971-01-12 1972-01-12 Axial piston machine Expired GB1355002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101078 DE2101078A1 (en) 1971-01-12 1971-01-12 Axial piston machine

Publications (1)

Publication Number Publication Date
GB1355002A true GB1355002A (en) 1974-06-05

Family

ID=5795600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB151572A Expired GB1355002A (en) 1971-01-12 1972-01-12 Axial piston machine

Country Status (4)

Country Link
CH (1) CH533238A (en)
DE (1) DE2101078A1 (en)
FR (1) FR2124739A5 (en)
GB (1) GB1355002A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241898A2 (en) * 1986-04-15 1987-10-21 The Oilgear Company Swashblock lubrication in axial piston fluid displacement devices
US4903577A (en) * 1987-07-22 1990-02-27 Linde Aktiengesellschaft Adjustable axial piston machine with a swash plate design

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898917A (en) * 1974-01-31 1975-08-12 Abex Corp Variable displacement fluid translating device
GB1548095A (en) * 1976-05-10 1979-07-04 Bryce J M Apparatus and method for attaching a wire to a supporting post
DE3135605A1 (en) * 1981-09-09 1983-03-17 Linde Ag, 6200 Wiesbaden ADJUSTABLE WASHING DISC AXIAL PISTON MACHINE WITH SLIDING BEARING WEIGHING BODY
DE3212374A1 (en) * 1982-04-02 1983-10-06 Abex Corp HYDRAULIC AXIAL PISTON MACHINE
US4827833A (en) * 1982-09-03 1989-05-09 Linde Aktiengesellschaft Adjustable axial piston pump having a bearing pressure pocket located on one side of a rocker body
GB2134188B (en) * 1983-01-27 1986-09-10 Linde Ag An adjustable axial piston machine of the inclined swash plate type
DE3413867C2 (en) * 1983-04-13 1995-04-06 Linde Ag Axial piston pump for two flow rates
DE3433895A1 (en) * 1983-09-15 1985-03-28 Linde Ag, 6200 Wiesbaden Hydrostatic axial-piston machine in swash plate construction
US4932310A (en) * 1989-06-01 1990-06-12 The Oilgear Company Bearing lubrication in axial piston fluid devices
DE4011737C2 (en) * 1990-04-11 1999-07-22 Linde Ag Adjustable swash plate type axial piston machine
GB2274491B (en) * 1993-01-21 1996-09-04 Hamworthy Hydraulics Ltd Axial piston pump
DE102006021570A1 (en) * 2006-04-10 2007-10-18 Robert Bosch Gmbh Hydrostatic piston machine with rotating control disc
DE102013222393B4 (en) 2013-11-05 2024-08-29 Robert Bosch Gmbh Hydrostatic axial piston machine with several differently pressurized bearing pockets for a swivel cradle bearing of the swash plate
CH710829A1 (en) * 2015-03-06 2016-09-15 Liebherr Machines Bulle Sa Pivot bearing of an axial piston machine.
DE102017213760A1 (en) 2017-08-08 2019-02-14 Robert Bosch Gmbh Hydrostatic axial piston machine
DE102019203410A1 (en) 2018-07-12 2020-01-16 Robert Bosch Gmbh Hydrostatic axial piston machine
DE102022201865A1 (en) 2022-02-23 2023-08-24 Robert Bosch Gesellschaft mit beschränkter Haftung Valve and axial piston machine with one valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241898A2 (en) * 1986-04-15 1987-10-21 The Oilgear Company Swashblock lubrication in axial piston fluid displacement devices
EP0241898B1 (en) * 1986-04-15 1992-07-22 The Oilgear Company Swashblock lubrication in axial piston fluid displacement devices
US4903577A (en) * 1987-07-22 1990-02-27 Linde Aktiengesellschaft Adjustable axial piston machine with a swash plate design

Also Published As

Publication number Publication date
CH533238A (en) 1973-01-31
DE2101078A1 (en) 1972-08-03
FR2124739A5 (en) 1972-09-22

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Legal Events

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