EP 0337439 A3 19900926 - FIXED CYLINDER TYPE RADIAL PISTON PUMP WITH VOLUME CONTROL APPARATUS
Title (en)
FIXED CYLINDER TYPE RADIAL PISTON PUMP WITH VOLUME CONTROL APPARATUS
Publication
Application
Priority
JP 8890988 A 19880413
Abstract (en)
[origin: EP0337439A2] A fixed cylinder type radial piston pump (1) with volume control apparatus is disclosed, in which volume control is possible by means of a variable aperture (38) carrying out opening control of a suction passage (22). For achieving continuous volume control in a large range, the radial piston pump (1) can provide two pump portions separated by an intermediate wall (60) and including a gate valve (62) in the other suction passage (22'). Without installing the intermediate wall (60), it is also possible to separate the two pump portions from each other by using a suction check valve (64).
IPC 1-7
IPC 8 full level
F04B 1/28 (2006.01); F04B 1/29 (2006.01); F04B 49/22 (2006.01)
CPC (source: EP)
F04B 49/225 (2013.01)
Citation (search report)
- [X] DE 2946746 A1 19810527 - FICHTEL & SACHS AG [DE]
- [Y] DE 2951012 A1 19810723 - ZAHNRADFABRIK FRIEDRICHSHAFEN [DE]
- [X] DE 1653379 A1 19710701 - BOSCH GMBH ROBERT
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0337439 A2 19891018; EP 0337439 A3 19900926; JP H01262374 A 19891019
DOCDB simple family (application)
EP 89106542 A 19890412; JP 8890988 A 19880413