EP 1068450 A1 20010117 - ADJUSTABLE FACE PLATE FOR HYDRAULIC PUMP OR MOTOR
Title (en)
ADJUSTABLE FACE PLATE FOR HYDRAULIC PUMP OR MOTOR
Title (de)
EINSTELLBARE SPIEGELPLATTE FÜR EINE HYDRAULISCHE PUMPE ODER MOTOR
Title (fr)
PLAQUE AVANT REGLABLE POUR POMPE OU MOTEUR HYDRAULIQUE
Publication
Application
Priority
- NL 9900198 W 19990406
- NL 1009607 A 19980710
- US 5627198 A 19980407
Abstract (en)
[origin: WO9951881A1] The invention relates to a hydraulic axial piston pump, motor or pressure transformer with a plurality of fluid chambers in the rotating cylinder block (6). The volume of the fluid chambers (7) changes between a minimum value (discharge) and a maximum value (suction) during each rotor (6) cycle. The rotatable face plate (8) can be adjusted by means of a transmission to an adjusting shaft (9) whereby the effective stroke volume is changed. Suction and discharge ports (14) are located in the rotatable face plate (8) thereby allowing controlled overlap of discharge openings to reduce energy losses due to high pressure fluid discharged at high speed through small openings, which improves efficiency of the pump.
IPC 1-7
IPC 8 full level
F03C 1/253 (2006.01); F04B 1/20 (2006.01); F04B 1/24 (2006.01); F04B 1/30 (2006.01); F04B 1/32 (2006.01)
CPC (source: EP)
F04B 1/2042 (2013.01); F04B 1/303 (2013.01)
Citation (search report)
See references of WO 9951881A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9951881 A1 19991014; DE 69911386 D1 20031023; DE 69911386 T2 20040701; EP 1068450 A1 20010117; EP 1068450 B1 20030917; JP 2002510773 A 20020409
DOCDB simple family (application)
NL 9900198 W 19990406; DE 69911386 T 19990406; EP 99913745 A 19990406; JP 2000542578 A 19990406