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1. WO1996002757 - HYDRAULIC AXIAL PISTON MACHINE

Publication Number WO/1996/002757
Publication Date 01.02.1996
International Application No. PCT/DK1995/000278
International Filing Date 30.06.1995
Chapter 2 Demand Filed 05.02.1996
IPC
F04B 1/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
F04B 1/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
20having rotary cylinder block
CPC
F04B 1/126
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
122Details or component parts, e.g. valves, sealings or lubrication means
124Pistons
126Piston shoe retaining means
F04B 1/2007
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
20having rotary cylinder block
2007Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure
F05C 2225/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
2225Synthetic polymers, e.g. plastics; Rubber
04PTFE [PolyTetraFluorEthylene]
F05C 2253/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
2253Other material characteristics; Treatment of material
12Coating
Applicants
  • DANFOSS A/S [DK]/[DK] (AllExceptUS)
  • MØLLER, Henry, Madsen [DK]/[DK] (UsOnly)
  • MARTENSEN, Lars [DK]/[DK] (UsOnly)
Inventors
  • MØLLER, Henry, Madsen
  • MARTENSEN, Lars
Common Representative
  • DANFOSS A/S
Priority Data
P 44 24 609.913.07.1994DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYDRAULIC AXIAL PISTON MACHINE
(FR) MACHINE A PISTON AXIAL HYDRAULIQUE
Abstract
(EN)
A hydraulic axial piston machine (1) is disclosed, having a cylinder drum (3) with at least one cylinder (4), in which a piston (5) is arranged to move back and forth, which piston bears by way of a slider shoe (7) against a swash plate (8), wherein a pressure plate (9) is provided which holds the slider shoe (7) in contact with the swash plate (8) and is supported against the cylinder drum (3) by way of a ball-and-socket joint (10) comprising a ball-like body (12) and a counterpart (13). In such an arrangement, one would like to avoid weakening the pressure plate by the ball-and-socket joint. To that end, a part of the ball-and-socket joint (10) is provided with a supporting surface (17) which extends substantially parallel to the surface of the pressure plate (9) and by means of which this element (12) lies in face-to-face contact with the pressure plate (9).
(FR)
L'invention concerne un machine (1) à piston axial hydraulique comprenant un tambour (3) à cylindre présentant au moins un cylindre (4), dans lequel un piston (5) est agencé pour effectuer un va-et-vient, lequel piston vient en appui par un patin coulissant (7) contre un plateau cyclique (8), une plaque d'appui (9) étant ménagée, laquelle maintient le patin coulissant (7) en contact avec le plateau cyclique (8) et est supportée contre le tambour (3) à cylindre par une articulation à rotule (10) comprenant un corps sphérique (12) et une partie complémentaire (13). Par cet agencement l'on cherche à éviter l'affaiblissement de la plaque d'appui par l'articulation à rotule. Pour ce faire, une partie de l'articulation à rotule (10) est dotée d'une surface de support (17), laquelle s'étend sensiblement parallèlement à la surface de la plaque d'appui (9) et au moyen de laquelle cet élément (12) se trouve en contact face à face avec ladite plaque d'appui (9).
Also published as
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