EP 0141216 B1 19870506 - SERVO CONTROL DEVICE FOR A HYDRO MACHINE
Title (en)
SERVO CONTROL DEVICE FOR A HYDRO MACHINE
Publication
Application
Priority
DE 8328832 U 19831006
Abstract (en)
[origin: EP0141216A1] 1. Servo adjustment device for an adjustable hydraulic machine with a control element (42), which can be randomly displaced by means of an actuation device and controls a pressure medium control stream for a device which actuates the correcting element (14) of the hydraulic machine and has at least one partially hollow adjustment piston (15), and with a control slide valve (47), which controls, together with the control element (42), a pressure space at the adjustment piston, characterized in that the adjustment piston (15) is guided with its inside against a guide body (18), and in that the pressure medium control stream is separated from the pressure medium contained in the housing of the hydraulic machine by means of a bellows (25) fixed on the adjustment piston and on a neighbouring housing wall (24).
IPC 1-7
IPC 8 full level
F04B 1/08 (2006.01); F04B 49/00 (2006.01); F04B 49/08 (2006.01); F04B 49/12 (2006.01)
CPC (source: EP US)
F04B 49/08 (2013.01 - EP US); F04B 49/123 (2013.01 - EP US); F04B 1/07 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR IT LI
DOCDB simple family (publication)
EP 0141216 A1 19850515; EP 0141216 B1 19870506; AT E27041 T1 19870515; DE 3463554 D1 19870611; DE 8328832 U1 19850314; JP S6063078 U 19850502
DOCDB simple family (application)
EP 84111149 A 19840919; AT 84111149 T 19840919; DE 3463554 T 19840919; DE 8328832 U 19831006; JP 14437284 U 19840926