EP 1158165 A3 20011212 - Gyrotor hydraulic motor
Title (en)
Gyrotor hydraulic motor
Title (de)
Gerotor-Hydraulikmotor
Title (fr)
Moteur hydraulique du type gerotor
Publication
Application
Priority
US 57916400 A 20000525
Abstract (en)
[origin: EP1158165A2] A multi-speed gerotor motor of the type including a fluid displacement mechanism (21) defining expanding (33E) and contracting (33C) fluid volume chambers, a stationary valve member (19), defining a plurality N of stationary valve passages, and a movable valve member (43). The upstream end of each valve passage communicates with the movable valve member (43), and the downstream end of each valve passage communicates with one of the volume chambers. In a plurality M of the stationary valve passages (79A through 79E) the upstream (81) and downstream (83) passage portions are blocked from direct communication, and for each there is a control valve member (103) which can, selectively, permit fluid communication for normal, low-speed, high-torque operation, or can block such communication, and recirculate the associated volume chambers for highspeed, low torque operation. <IMAGE>
IPC 1-7
IPC 8 full level
F03C 2/08 (2006.01); F04C 2/10 (2006.01); F04C 14/08 (2006.01)
CPC (source: EP)
F03C 2/08 (2013.01); F04C 2/104 (2013.01); F04C 14/08 (2013.01)
Citation (search report)
- [A] US 5624248 A 19970429 - KASSEN GARY R [US], et al
- [PA] US 6099280 A 20000808 - BERNSTROM MARVIN L [US], et al
- [A] US 4767292 A 19880830 - KINDER MARK R [US]
- [A] US 5137438 A 19920811 - MILLER LAURENCE L [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1158165 A2 20011128; EP 1158165 A3 20011212; CN 1326048 A 20011212; JP 2001336472 A 20011207
DOCDB simple family (application)
EP 01112161 A 20010517; CN 01118960 A 20010525; JP 2001153848 A 20010523