EP 0527967 B1 19940817 - HYDRAULIC DRIVE DEVICE.
Title (en)
HYDRAULIC DRIVE DEVICE.
Title (de)
HYDRAULISCHE ANTRIEBSVORRICHTUNG.
Title (fr)
SERVOCOMMANDE HYDRAULIQUE.
Publication
Application
Priority
- DE 4015101 A 19900511
- EP 9100859 W 19910508
Abstract (en)
[origin: US5379678A] PCT No. PCT/EP91/00859 Sec. 371 Date Nov. 10, 1992 Sec. 102(e) Date Nov. 10, 1992 PCT Filed May 8, 1991 PCT Pub. No. WO91/18204 PCT Pub. Date Nov. 28, 1991.A hydraulic drive in accordance with the invention includes an axial piston hydraulic motor provided for forming a power drive with a follow-up control valve provided for controlling the pressure medium supply with the follow-up control valve being electronically controlled by a desired position value presetting and mechanical actual position value acknowledgement. An electric motor is provided for the desired position value presetting which can be activated by output signals of a central CN or CNC control unit. The rotor of the axial-piston hydraulic motor is rotatably supported with a circular-cylindrical tubular section of an output shaft thereon on an outer casing surface of an axial extension which is a hollow tubular shape and forms a pivot pin for the rotor of a housing section accommodating the electric motor provided for the desired value positioning control.
IPC 1-7
IPC 8 full level
F03C 1/06 (2006.01); F03C 1/36 (2006.01); F03C 1/40 (2006.01); F15B 9/14 (2006.01)
CPC (source: EP US)
F03C 1/0657 (2013.01 - EP US); F03C 1/0665 (2013.01 - EP US); F03C 1/0678 (2013.01 - EP US); F15B 9/14 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI
DOCDB simple family (publication)
US 5379678 A 19950110; AT E110140 T1 19940915; DE 4015101 A1 19911114; DE 59102576 D1 19940922; EP 0527967 A1 19930224; EP 0527967 B1 19940817; WO 9118204 A1 19911128
DOCDB simple family (application)
US 94648092 A 19921110; AT 91920993 T 19910508; DE 4015101 A 19900511; DE 59102576 T 19910508; EP 9100859 W 19910508; EP 91920993 A 19910508