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1. WO1996002753 - CONTROL PLATE OF A HYDRAULIC MACHINE

Publication Number WO/1996/002753
Publication Date 01.02.1996
International Application No. PCT/DK1995/000273
International Filing Date 28.06.1995
Chapter 2 Demand Filed 05.02.1996
IPC
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 1/2042
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
2014Details or component parts
2042Valves
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
Y10T 74/18336
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
74Machine element or mechanism
18Mechanical movements
18056Rotary to or from reciprocating or oscillating
18296Cam and slide
18336Wabbler type
Applicants
  • DANFOSS A/S [DK/DK]; DK-6430 Nordborg, DK (AllExceptUS)
  • MARTENSEN, Lars [DK/DK]; DK (UsOnly)
  • HANSEN, Ove, Thorbøl [DK/DK]; DK (UsOnly)
Inventors
  • MARTENSEN, Lars; DK
  • HANSEN, Ove, Thorbøl; DK
Common Representative
  • DANFOSS A/S; Patent Dept. DK-6430 Nordborg, DK
Priority Data
P 44 24 671.413.07.1994DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTROL PLATE OF A HYDRAULIC MACHINE
(FR) PLAQUE DE COMMANDE D'UNE MACHINE HYDRAULIQUE
Abstract
(EN)
A control plate (1) of a hydraulic machine having a core (2) is disclosed, which at least on its upper side (O) lying in operation against a cylinder drum is covered with a layer of a friction-reducing plastics material (3) and which has at least two control openings. In a control plate of that kind, it is desirable to simplify manufacture, during which subsequent machining is effected after the plastics material has been moulded on. For that purpose, the plastics material (3) is joined to the core (2) by means of at least one connecting element (8) which, as a result of interlocking engagement with the plastics material (3) and/or the core (2), takes up tensile forces substantially at right angles to the upper side (O).
(FR)
L'invention concerne une plaque de commande (1) d'une machine hydraulique présentant une âme (2) laquelle, au moins sur son côté supérieur (O), fonctionne contre un tambour à cylindre, est recouverte d'une couche d'une matière plastique (3) réduisant les frottements, et présente au moins deux ouvertures de commande. Dans une plaque de commande de ce type, il est souhaitable de simplifier la fabrication au cours de laquelle un usinage subséquent est effectué après le moulage de la matière plastique sur ladite plaque. Pour ce faire, la matière plastique (3) est unie à l'âme (2) au moyen d'au moins un élément de raccordement (8) lequel, du fait de la solidarisation avec la matière plastique (3) et/ou l'âme (2), absorbe les forces de traction s'exerçant orthogonalement au côté supérieur (O).
Also published as
Latest bibliographic data on file with the International Bureau