EP 1564392 B1 20070404 - Variable compression ratio internal combustion engine
Title (en)
Variable compression ratio internal combustion engine
Title (de)
Brennkraftmaschine mit variablem Verdichtungverhältnis
Title (fr)
Moteur à combustion interne avec taux de compression variable
Publication
Application
Priority
JP 2004036955 A 20040213
Abstract (en)
[origin: EP1564392A1] In a variable compression ratio internal combustion engine whose compression ratio is varied by changing the volume of a combustion chamber, the present invention is intended to enable the engine to operate at a high compression ratio under a much higher load while suppressing an excessive rise in the temperature of the combustion chamber. A cooling system is provided for cooling the variable compression ratio internal combustion engine, and when the load of the variable compression ratio internal combustion engine is equal to a specified value or above at a high compression ratio ( S101, S102 ), the cooling capacity of the cooling system is increased more than when the load of the variable compression ratio internal combustion engine is lower than the specified value ( S103 ), whereby a temperature rise in the combustion chamber can be suppressed. <IMAGE>
IPC 8 full level
F01P 7/16 (2006.01); F02B 75/04 (2006.01); F02D 15/04 (2006.01); F02F 1/18 (2006.01)
CPC (source: EP)
F01P 7/167 (2013.01); F02B 75/04 (2013.01); F02D 15/04 (2013.01); F02B 2275/16 (2013.01)
Designated contracting state (EPC)
DE FR SE
DOCDB simple family (publication)
EP 1564392 A1 20050817; EP 1564392 B1 20070404; DE 602005000780 D1 20070516; DE 602005000780 T2 20080110; JP 2005226571 A 20050825; JP 4397246 B2 20100113
DOCDB simple family (application)
EP 05002837 A 20050210; DE 602005000780 T 20050210; JP 2004036955 A 20040213