EP 0679227 B1 19970416 - HYDRAULIC PISTON MACHINE
Title (en)
HYDRAULIC PISTON MACHINE
Title (de)
HYDRAULISCHE KOLBENMASCHINE
Title (fr)
MACHINE HYDRAULIQUE A PISTONS
Publication
Application
Priority
- DE 4301135 A 19930118
- DK 9400009 W 19940106
Abstract (en)
[origin: WO9416220A1] A hydraulic piston machine is disclosed, with a cylinder body (1) and a control counter-plate (4) which engage one another via the intermediary of a control surface, the cylinder body having at least one cylinder which emerges by way of an opening (2) into the control surface, and the control counter-plate (4) has a high-pressure channel (6) and a low-pressure channel (5) which are connected to a high-pressure connection and a low-pressure connection (7) respectively and, upon movement of cylinder body (1) and control counter-plate (4) relative to one another, are passed over by the opening (2), the low-pressure channel (5) having a groove (9) at its end passed over first by the opening (2). It is desirable to be able to operate a machine of that kind also with a hydraulic fluid that has a relatively low viscosity. For that purpose, the groove (9), together with the opening (2), produces a directed jet (12) at least immediately after the start of their overlap.
IPC 1-7
IPC 8 full level
F04B 1/20 (2006.01)
CPC (source: EP)
F04B 1/2021 (2013.01); F04B 1/2042 (2013.01); F05C 2225/04 (2013.01); F05C 2253/12 (2013.01)
Designated contracting state (EPC)
DK FR GB IT
DOCDB simple family (publication)
DE 4301135 A1 19940721; DE 4301135 C2 19950406; AU 5879794 A 19940815; EP 0679227 A1 19951102; EP 0679227 B1 19970416; WO 9416220 A1 19940721
DOCDB simple family (application)
DE 4301135 A 19930118; AU 5879794 A 19940106; DK 9400009 W 19940106; EP 94904992 A 19940106