Heat management system for internal combustion engines

Details Heat management system for internal combustion engines Heat management system for internal combustion engines

1996-10-21

1998-04-07

Kamen, Noah P.

Internal-combustion engines

Cooling

Parallel flow

123 4182R, 123 123B, F04P 300

Patent

active

057352380

ABSTRACT:
A heat management system for an internal combustion engine utilizes recirculated liquid coolant and provides a heat intensifying circuit to hasten engine warm-up and a heat dissipation circuit for use after the engine has warmed to a predetermined operating temperature. When the engine is cold, it is operated in such a way as to maximize heat rejection to the coolant circulating in the heat intensifying circuit, which may include a heat exchanger for warming air within a passenger compartment of a vehicle. The present system optimizes the location of maximum heat transfer, minimizes the amount of coolant heated during the warm-up period and increases the heat transferred to this coolant. After the warm-up period the coolant system actively cools both the cylinder head and engine block surfaces and the engine operating strategy is returned for normal engine operation.

REFERENCES:
patent: 4319547 (1982-03-01), Bierling
patent: 5337704 (1994-08-01), Roth
SAE 912467, "Improvement of Toyota 4-valve Standard Engines", Matsuda et al.
SAE912469, "Development of High Performance Engine for Passenger Cars", Suematsu et al.

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