EP 0074156 A2 19830316 - Piston in an internal combustion engine.
Title (en)
Piston in an internal combustion engine.
Title (de)
Kolben in einer Brennkraftmaschine mit innerer Verbrennung.
Title (fr)
Piston pour moteur à combustion interne.
Publication
Application
Priority
JP 13924681 A 19810905
Abstract (en)
The invention concerns pistons of the liquid-cooled type, and provides an advantageous alternative to the known types of oil or water-cooled pistons. The invention is characterised in that the liquid (A) is sealingly enclosed within a sealed cooling space or chamber provided within the piston (4) so as to form a free surface, in that a heat-exchanger (3) for effecting heat transfer between said liquid and oil (c) supplied to the head exchanger is associated with said sealed space, and in that the oil within said heat-exchanger is arranged to be fed and discharged through oil passageways (21, 11) connected to the exterior of the piston. Preferably, the liquid (A) is a liquid having a boiling point of 200 DEG C or lower at atmospheric pressure, and air, or an inert gas (B) is sealingly enclosed within said sealed space.
IPC 1-7
IPC 8 full level
F01P 3/06 (2006.01); F02F 3/18 (2006.01); F02F 3/22 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
F02F 3/18 (2013.01); F02F 3/22 (2013.01); F02B 3/06 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0074156 A2 19830316; EP 0074156 A3 19840208; DK 190082 A 19830306; JP S5841248 A 19830310
DOCDB simple family (application)
EP 82301515 A 19820323; DK 190082 A 19820428; JP 13924681 A 19810905