Cooling water temperature controlling apparatus

Details Cooling water temperature controlling apparatus Cooling water temperature controlling apparatus

1990-12-05

1992-05-12

Kamen, Noah P.

Internal-combustion engines

Cooling

Interrelated coolant flow and throttle control

251 69, 251305, F01P 714

Patent

active

051117754

ABSTRACT:
A cooling water temperature controlling apparatus for an internal combustion engine comprises a butterfly valve placed in a cooling water passage for the internal combustion engine at a position between the inlet port of a radiator and the inlet port of a radiator bypass pipe, and a stepper motor connected to the butterfly valve through a reduction gear having a worm gear wheel so as to adjust a degree of opening of the butterfly valve depending on the temperature of cooling water.

REFERENCES:
patent: 3442488 (1969-05-01), Adams
patent: 4007910 (1977-02-01), Yasuoka et al.
patent: 4113063 (1978-09-01), Troy
patent: 4381736 (1983-05-01), Hirayama
patent: 4759224 (1988-07-01), Charbonneau et al.
patent: 4967778 (1990-11-01), Ball et al.

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