EP0943798A3 - Axialkolbenmaschine mit hydrostatischer Entlastung der Zylinderbohrungen - Google Patents

Axialkolbenmaschine mit hydrostatischer Entlastung der Zylinderbohrungen Download PDF

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Publication number
EP0943798A3
EP0943798A3 EP99105278A EP99105278A EP0943798A3 EP 0943798 A3 EP0943798 A3 EP 0943798A3 EP 99105278 A EP99105278 A EP 99105278A EP 99105278 A EP99105278 A EP 99105278A EP 0943798 A3 EP0943798 A3 EP 0943798A3
Authority
EP
European Patent Office
Prior art keywords
cylinder bores
pistons
hydrostatic relief
axial piston
piston machine
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.)
Granted
Application number
EP99105278A
Other languages
English (en)
French (fr)
Other versions
EP0943798A2 (de
EP0943798B1 (de
Inventor
Rudi Hildebrandt
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik 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
Priority claimed from DE19815614A external-priority patent/DE19815614B4/de
Application filed by Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP0943798A2 publication Critical patent/EP0943798A2/de
Publication of EP0943798A3 publication Critical patent/EP0943798A3/de
Application granted granted Critical
Publication of EP0943798B1 publication Critical patent/EP0943798B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B1/2007—Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure
    • 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
    • F01B3/0041—Arrangements for pressing the cylinder barrel against the valve plate, e.g. fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Die Erfindung betrifft eine Axialkolbenmaschine mit einer um eine Drehachse (47) drehbar gelagerten Zylindertrommel (6), die Zylinderbohrungen (26) aufweist, in welchen Kolben (29) bewegbar geführt sind, die sich an einer Schrägscheibe (3) abstützen. Die Wandungen der Zylinderbohrungen (26) weisen Ausnehmungen zur hydrostatischen Entlastung der Gleitbewegung der Kolben (29) in den Zylinderbohrungen (26) auf. Erfindungsgemäß sind die Ausnehmungen zur hydrostatischen Entlastung als längliche Entlastungsnuten (40) mit einem spiralförmigen oder zick-zack-förmigen Verlauf ausgebildet, die sich axial in den Zylinderbohrungen (26) entlangwinden. Alternativ haben die Zylinderbohrungen (26) einen ovalen Querschnitt und die Kolben (29) einen kreisrunden Querschnitt, wobei sich zwischen der Wandung der Zylinderbohrungen (26) und den Kolben (29) Zwischenräume (70, 71) für die hydrostatische Entlastung der Gleitbewegung der Kolben (29) bilden.
EP19990105278 1998-03-16 1999-03-15 Axialkolbenmaschine mit hydrostatischer Entlastung der Zylinderbohrungen Expired - Lifetime EP0943798B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19811312 1998-03-16
DE19811312 1998-03-16
DE19815614 1998-04-07
DE19815614A DE19815614B4 (de) 1998-03-16 1998-04-07 Axialkolbenmaschine mit hydrostatischer Entlastung der Zylinderbohrungen

Publications (3)

Publication Number Publication Date
EP0943798A2 EP0943798A2 (de) 1999-09-22
EP0943798A3 true EP0943798A3 (de) 2000-06-28
EP0943798B1 EP0943798B1 (de) 2004-08-18

Family

ID=26044643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990105278 Expired - Lifetime EP0943798B1 (de) 1998-03-16 1999-03-15 Axialkolbenmaschine mit hydrostatischer Entlastung der Zylinderbohrungen

Country Status (1)

Country Link
EP (1) EP0943798B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2158851C2 (ru) * 1998-04-29 2000-11-10 Ковровская государственная технологическая академия Аксиально-поршневая гидромашина
DE102021208329A1 (de) 2021-08-02 2023-02-02 Robert Bosch Gesellschaft mit beschränkter Haftung Axialkolbenmaschine
DE102022207272A1 (de) 2022-07-18 2024-01-18 Robert Bosch Gesellschaft mit beschränkter Haftung Axialkolbenmaschine
CN120845333B (zh) * 2025-09-23 2025-11-28 鸿盟机械装备有限公司 具有卸荷装置的液氮泵冷端

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403754A1 (de) * 1960-08-31 1969-01-23 Mini Of Technology Druckmittelbetaetigte Maschine mit hin- und hergehendem Kolben
FR1595812A (de) * 1968-11-28 1970-06-15
DE2534001A1 (de) * 1975-07-30 1977-02-17 Paul Hammelmann Hochdruckplungerpumpe mit einem beruehrungslos gleitbar gelagerten plunger
JPH07189889A (ja) * 1993-12-27 1995-07-28 Tokimec Inc ピストン型液圧装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423023C2 (de) 1994-06-30 1998-07-09 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine mit einem Kühlkreislauf für die Zylinder und Kolben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403754A1 (de) * 1960-08-31 1969-01-23 Mini Of Technology Druckmittelbetaetigte Maschine mit hin- und hergehendem Kolben
FR1595812A (de) * 1968-11-28 1970-06-15
DE2534001A1 (de) * 1975-07-30 1977-02-17 Paul Hammelmann Hochdruckplungerpumpe mit einem beruehrungslos gleitbar gelagerten plunger
JPH07189889A (ja) * 1993-12-27 1995-07-28 Tokimec Inc ピストン型液圧装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *

Also Published As

Publication number Publication date
EP0943798A2 (de) 1999-09-22
EP0943798B1 (de) 2004-08-18

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