EP 1640571 B1 20070822 - Oil supply device for engine
Title (en)
Oil supply device for engine
Title (de)
Ölzuführungsvorrichtung für Brennkraftmaschine
Title (fr)
Dispositif d'alimentation en huile pour moteur
Publication
Application
Priority
JP 2004281908 A 20040928
Abstract (en)
[origin: EP1640571A1] An oil supply device characterized by a first oil suction passage (18), a second oil suction passage (19), a first pump (1) for sucking and discharging oil from the first oil suction passage, a second pump (2) arranged in series with the first pump, the second pump for sucking and discharging oil from at least one of the first pump and the second oil suction passage, a check valve (13) for blocking oil circulation from the second pump and the second oil suction passage to the first pump, a first oil passage (5) to a lubrication system portion, a second oil passage (6) to a cooling system portion, a third oil passage (7) for establishing communication between the first oil passage and the second oil passage, and a supply volume control means (21) for varying oil supply volume to the lubrication system portion, to the cooling system portion, or to the lubrication system portion and the cooling system portion in accordance with a change in at least one of an engine oil temperature, an engine rotation speed, and an engine load.
IPC 8 full level
CPC (source: EP US)
F01M 1/02 (2013.01 - EP US); F01M 1/12 (2013.01 - EP US); F01M 1/16 (2013.01 - EP US); F01M 5/002 (2013.01 - EP US); F01M 2001/123 (2013.01 - EP US)
Designated contracting state (EPC)
CZ DE FR GB
DOCDB simple family (publication)
EP 1640571 A1 20060329; EP 1640571 B1 20070822; DE 602005002103 D1 20071004; JP 2006097491 A 20060413; US 2006065217 A1 20060330
DOCDB simple family (application)
EP 05020471 A 20050920; DE 602005002103 T 20050920; JP 2004281908 A 20040928; US 22953105 A 20050920