Cooling system controller for internal combustion engines

Details Cooling system controller for internal combustion engines Cooling system controller for internal combustion engines

1987-03-30

1988-02-23

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

Interrelated coolant flow and throttle control

123 4129, 123 4182R, F01P 320

Patent

active

047263245

ABSTRACT:
A cooling systems controller for internal combustion engines having two circuits of cooling water for cylinder head side and cylinder block side, each of two circuits being provided with a radiator, a water jacket, a water pump, a conduit, a return passageway, a bypass passageway, a mixing valve, and a motor fan; two heater circuits being provided so as to branch from and return to said main two cooling water circuits, said heater circuits being provided with a first selector valve to junction them and a second selector valve to separate them, said selector valve having a function to supply the higher temperature water from either of two water circuits to a heater radiator by the signals from a control unit for judging which temperature of two circuits is higher, thereby making it possible to obtain more rapid heating effect at the time immediately after starting up the engine without reducing the heating efficiency during normal runs of vehicle.

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