EP 1318304 A3 20030910 - Vane pump
Title (en)
Vane pump
Title (de)
Flügelzellenpumpe
Title (fr)
Pompe à palettes
Publication
Application
Priority
DE 10160286 A 20011207
Abstract (en)
[origin: EP1318304A2] The pump has an intake side, a housing with drive shaft and rotor, a rear blade oil channel, and working chambers with suction zones with intake chambers, and pressure zones with outlet chambers. A pressure medium flow coming from a first outlet chamber (13) is controlled by a shut-off valve (18), so that with low pump RPM, the flow is fed into a pressure collection chamber (15), and with higher pump RPM, is short-circuited resp. fed directly to the pump intake side (1), e.g. into the suction intake (2) via an injector (25). A piston (20) of the shut-off valve is controlled dependent upon pump RPM.
IPC 1-7
IPC 8 full level
F01C 21/08 (2006.01); F04C 2/344 (2006.01); F04C 14/02 (2006.01)
CPC (source: EP)
F01C 21/0863 (2013.01); F04C 2/3446 (2013.01); F04C 14/02 (2013.01)
Citation (search report)
- [XY] DE 4136151 A1 19930506
- [XY] EP 0522505 A2 19930113 - TOYODA MACHINE WORKS LTD [JP]
- [X] DE 4400684 A1 19940714 - UNISIA JECS CORP [JP]
- [Y] GB 559108 A 19440204 - CYRIL ALPHONSO PUGH, et al
- [XY] PATENT ABSTRACTS OF JAPAN vol. 010, no. 307 (M - 527) 18 October 1986 (1986-10-18)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1318304 A2 20030611; EP 1318304 A3 20030910; EP 1318304 B1 20090218; DE 10160286 A1 20030618; DE 50213284 D1 20090402
DOCDB simple family (application)
EP 02026051 A 20021122; DE 10160286 A 20011207; DE 50213284 T 20021122