EP 0231876 B1 19910522 - HYDRAULIC PRESSURE CONTROL SYSTEM
Title (en)
HYDRAULIC PRESSURE CONTROL SYSTEM
Publication
Application
Priority
- JP 1693486 A 19860130
- JP 13501186 A 19860612
- JP 23002986 A 19860930
Abstract (en)
[origin: EP0231876A2] A pressure control system in which a pressure in a back pressure chamber (25) of a flow control valve (20) is controlled according to a throttle opening of a pilot valve (10) to locate stationary the valve body (30) of the flow control valve (20) at a position corresponding to the throttle opening of the pilot valve (10). In the system, a fixed throttle (26) is provided in an oil passage extended to the back pressure chamber (25) of the flow control valve (20), thereby applying a dampering action to the valve body.
IPC 1-7
IPC 8 full level
F15B 11/08 (2006.01); F15B 13/04 (2006.01); F15B 13/042 (2006.01)
CPC (source: EP)
F15B 11/08 (2013.01); F15B 13/0405 (2013.01); F15B 13/0422 (2013.01); F15B 2211/405 (2013.01); F15B 2211/40507 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/40576 (2013.01); F15B 2211/41572 (2013.01); F15B 2211/42 (2013.01); F15B 2211/428 (2013.01); F15B 2211/6355 (2013.01); F15B 2211/67 (2013.01)
Citation (examination)
US 4535809 A 19850820 - ANDERSSON BO [SE]
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 0231876 A2 19870812; EP 0231876 A3 19880810; EP 0231876 B1 19910522; DE 3770178 D1 19910627
DOCDB simple family (application)
EP 87101185 A 19870128; DE 3770178 T 19870128