Automatic temperature and humidity regulation – Cooling radiator – Bypass
Patent
1988-03-09
1989-07-18
Tapolcai, William E.
Automatic temperature and humidity regulation
Cooling radiator
Bypass
236 84, 25112911, F01P 702
Patent
active
048486523
ABSTRACT:
A vehicle engine coolant system and method of making the same are provided, the system having a valve construction comprising a housing provided with an inlet interconnected to the block of the internal combustion engine of the vehicle and an outlet interconnected to the radiator of the engine and being separated from the inlet by a valve seat, a movable valve member carried by the housing for opening and closing the valve seat, and an electrically operated stepper motor carried by the housing and being operatively interconnected to the valve member for positioning the valve member relative to the valve seat.
REFERENCES:
patent: 2872117 (1959-02-01), Puster
patent: 4426036 (1984-01-01), Sliger
patent: 4495779 (1985-01-01), Tanaka et al.
patent: 4523435 (1985-06-01), Lord
patent: 4650159 (1987-03-01), Shimamura
patent: 4723754 (1988-02-01), Torimoto et al.
patent: 4742989 (1988-05-01), Akagi
patent: 4745767 (1988-05-01), Ohya et al.
Prior Known Engine Coolant System Having an Electrically Operated Solenoid Valve Means.
Copending patent application of Hewette et al., Ser. No. 032,509, Filed Mar. 30, 1987.
Robertshaw Controls Company
Tapolcai William E.
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