Cooling water circulating system for internal combustion engine

Details Cooling water circulating system for internal combustion engine Cooling water circulating system for internal combustion engine

1996-03-07

1998-03-24

Kamen, Noah P.

Internal-combustion engines

Cooling

System drained and/or heat-storing

123 4133, 237 123B, F01P 1102

Patent

active

057300895

ABSTRACT:
A coolant circulation circuit of an internal combustion engine includes a heat accumulation tank having a heat insulating structure and a heater core for heating air for heating a compartment in the vehicle. High temperature coolant is reserved in the heat accumulation tank even when the engine is stopped. An intake air heat exchanger is disposed in the circuit on the downstream side of the heater core, and high temperature coolant can effectively heat the intake air. An engine lubricating oil heat exchanger and a transmission operating oil heat exchanger are arranged in the circuit on the downstream side of the intake air heat exchanger. Intake air, engine lubricating oil and transmission operating oils are suitably heated during warm-up of the engine to thereby improve fuel economy and reduce exhaust gas pollution.

REFERENCES:
patent: 3523644 (1970-08-01), Kozinski
patent: 5211334 (1993-05-01), Schatz

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