Internal-combustion engines – Cooling – System drained and/or heat-storing
Patent
1997-08-28
1999-04-27
Kwon, John
Internal-combustion engines
Cooling
System drained and/or heat-storing
123 4129, 123 4133, F01P 1102
Patent
active
058968334
ABSTRACT:
According to the present invention, in a cooling water circuit having a water-cooled internal combustion engine for a vehicle, a pump for pumping cooling water, and a heat-accumulating tank for thermally insulating and storing the cooling water having flowed out of the engine, at least one of an inflow cooling water passage for introducing the cooling water having flowed out of the engine into the heat-accumulating tank and an outflow cooling water passage for introducing the cooling water having flowed out of the heat-accumulating tank into the engine is closed while the engine is stopped. In this way, the convection between the cooling water in the heat-accumulating tank and the cooling water in the other portions than the heat-accumulating tank can be prevented, and the heat insulating capacity of the heat-accumulating tank can be improved.
REFERENCES:
patent: 5730089 (1998-03-01), Morikawa et al.
patent: 5749330 (1998-05-01), Inque et al.
patent: 5765511 (1998-06-01), Schatz
SAE Technical Paper Series 950994, "Insulated Expansion Tank (IET) and Thermal Storage for Engine Cold Start", International Congress & Exposition, Detroit, Michigan, Feb. 27-Mar. 2, 1995.
Denso Corporation
Kwon John
Nippon Soken Inc.
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