EP 0270181 A3 19900131 - A ROTARY DISTRIBUTION GROUP FOR HYDRAULIC MOTORS WITH ORBITING SEALING SURFACES
Title (en)
A ROTARY DISTRIBUTION GROUP FOR HYDRAULIC MOTORS WITH ORBITING SEALING SURFACES
Publication
Application
Priority
- IT 2234487 A 19871020
- IT 2259286 A 19861205
Abstract (en)
[origin: EP0270181A2] The rotary distribution group for hydraulic motors according to the invention comprises a revolving distributor disc (8) formed with orifices (26) communicating between its plane surfaces and connected for rotation to the drive shaft (13) and clamped between an axially movable reaction ring (9) formed with separate orifices (17) connected to the supply and the discharge ducts (3,4) for hydraulic fluid, and a fixed distribution plate (5) formed with outlet orifices (6) for the ducts (7) supplying and discharging hydraulic fluid to the motor propulsors, continuous surfaces being present for bounding and separating the respective inlet areas of the orifices in the disc (8) towards the reaction ring (9) and towards the distribution plate (5), the surfaces of the distributor disc (8) facing the distribution plate (5) being formed with cavities and recesses which are eccentric with respect to the axis of rotation of the distributor disc (8) and are adapted to move orbitally during the rotation of the distributor disc (8).
IPC 1-7
IPC 8 full level
F03C 1/38 (2006.01)
CPC (source: EP)
F03C 1/0444 (2013.01)
Citation (search report)
- [A] FR 2381173 A1 19780915 - RIVA CALZONI SPA [IT]
- [A] DE 2052305 A1 19710513
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0270181 A2 19880608; EP 0270181 A3 19900131; EP 0270181 B1 19920513; DE 3779062 D1 19920617; ES 2030714 T3 19921116
DOCDB simple family (application)
EP 87202354 A 19871130; DE 3779062 T 19871130; ES 87202354 T 19871130