EP 0306368 B1 19910502 - PRESSURE COMPENSATOR VALVE FOR A HYDRAULIC PROPORTIONAL DIRECTIONAL VALVE, AND HYDRAULIC DIRECTIONAL VALVE COMPRISING IT
Title (en)
PRESSURE COMPENSATOR VALVE FOR A HYDRAULIC PROPORTIONAL DIRECTIONAL VALVE, AND HYDRAULIC DIRECTIONAL VALVE COMPRISING IT
Publication
Application
Priority
FR 8711435 A 19870803
Abstract (en)
[origin: JPS6449701A] PURPOSE: To prevent drop of efficiency of the distributor by forming a notch in the compensation slide valve and constituting the closure means with an annular valve arranged on the periphery of the notch. CONSTITUTION: A compensator slide valve 60 is constituted by an obturator guide member 61 and a notch 62 on the extension of the obturator. An annular valve 63 slideable along the notch 62 is arranged on the periphery of the notch 62. A conduit 68 communicating with a back chamber 69 and a feed chamber 70 of the annular valve 63 is formed on a stator body 65. In this way, even if the supply of the actuating fluid is in large amount, it is still possible to reduce the pressure loss when the fluid flows through the compensatory slide valve 60. Therefore, it is possible to prevent the drop of efficiency of the distributor.
IPC 1-7
IPC 8 full level
F15B 11/05 (2006.01); F15B 13/04 (2006.01); F16K 17/04 (2006.01)
CPC (source: EP US)
F15B 13/0417 (2013.01 - EP US); Y10T 137/7788 (2015.04 - EP US); Y10T 137/87169 (2015.04 - EP US); Y10T 137/88054 (2015.04 - EP US)
Citation (examination)
FR 2562632 A1 19851011 - BENNES MARREL [FR]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0306368 A1 19890308; EP 0306368 B1 19910502; DE 3862631 D1 19910606; DK 166224 B 19930322; DK 166224 C 19930816; DK 429888 A 19890204; DK 429888 D0 19880802; FR 2619192 A2 19890210; FR 2619192 B2 19891229; JP S6449701 A 19890227; US 4842019 A 19890627
DOCDB simple family (application)
EP 88402007 A 19880802; DE 3862631 T 19880802; DK 429888 A 19880802; FR 8711435 A 19870803; JP 19331688 A 19880802; US 22762788 A 19880802