EP 1961961 A2 20080827 - Oil pump pressure control device
Title (en)
Oil pump pressure control device
Title (de)
Vorrichtung zum Steuern des Ölpumpendrucks
Title (fr)
Dispositif de contrôle de la pression dans une pompe à huile
Publication
Application
Priority
JP 2007039135 A 20070220
Abstract (en)
An oil pump pressure control device is configured from a first discharge passage (11) to an engine (E), a first return passage (12) that returns to an intake side of an outer circumferential side rotor, a second discharge passage (13) to the engine, a second return passage (14) that returns to an intake side of an inner circumferential side rotor, and a pressure control valve (C) whose valve main body is provided between a discharge port from the inner circumferential side rotor and the first discharge passage. The first (11) and second discharge passage (14) are coupled, and a flow passage control is executed in each of: a low revolution range in a state in which only the first and the second discharge passage are open; an intermediate revolution range in a state in which the first and second discharge passage are open and a first intake side of the return passage is closed while a second intake side of the return passage is open; and a high revolution range in a state in which the second discharge passage is closed while the first discharge passage and the return passage are open.
IPC 8 full level
F04C 2/10 (2006.01); F04C 14/06 (2006.01); F04C 14/26 (2006.01)
CPC (source: EP US)
F04C 14/065 (2013.01 - EP US); F04C 14/26 (2013.01 - EP US); F04C 2/10 (2013.01 - EP US)
Citation (applicant)
- JP 2002070756 A 20020308 - TOYOTA MOTOR CORP, et al
- EP 0811765 A2 19971210 - BAYERISCHE MOTOREN WERKE AG [DE]
Designated contracting state (EPC)
DE ES FR GB IT
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1961961 A2 20080827; EP 1961961 A3 20091216; EP 1961961 B1 20110126; CN 101251108 A 20080827; CN 101251108 B 20110914; DE 602007012206 D1 20110310; ES 2358286 T3 20110509; JP 2008202488 A 20080904; JP 4521005 B2 20100811; US 2008253904 A1 20081016
DOCDB simple family (application)
EP 07122748 A 20071210; CN 200810009259 A 20080131; DE 602007012206 T 20071210; ES 07122748 T 20071210; JP 2007039135 A 20070220; US 73507 A 20071217