Thermally responsive valve for regulating engine coolant flow

Details Thermally responsive valve for regulating engine coolant flow Thermally responsive valve for regulating engine coolant flow

2006-09-28

2011-10-25

Tyler, Cheryl J (Department: 3744)

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

C236S034500, C236S09300A, C236S09900R, C236S100000

Reexamination Certificate

active

08042745

ABSTRACT:
A thermally responsive valve is installed in a coolant circuit of an engine1, and is provided with an operating member7containing a thermal expansion element15which expands and contracts according to a temperature change of coolant to change a longitudinal length of the operating member7due to thermal expansion and contraction thereof so as to open and close a valve in the coolant circuit. The thermal expansion element15includes a first thermal expansion element15awith lower thermal expansion start temperature and a lower thermal expansion response speed, and a second thermal expansion element15bwith a higher thermal expansion start temperature and a higher expansion response speed.

REFERENCES:
patent: 60-121377 (1985-06-01), None
patent: 61-101617 (1986-05-01), None
JP 08210553 A, Imanishi, Masaaki (English Translation).

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