Automatic temperature and humidity regulation – Cooling radiator – Bypass
Patent
1989-10-10
1990-10-09
Tapolcai, William E.
Automatic temperature and humidity regulation
Cooling radiator
Bypass
236100, 403305, F01P 702
Patent
active
049615300
ABSTRACT:
An engine cooling system, structure therefor and methods of making the same are provided, the system comprising a housing having an inlet and an outlet, and a thermostat construction disposed in the housing between the inlet and the outlet for controlling the degree of fluid flow therebetween, the thermostat construction comprising a valve seat unit, a valve closure unit for opening and closing the valve seat unit, a spring operatively interconnected to the valve closure unit to tend to close the same against the valve seat unit, and a temperature responsive device comprising a piston member and a cylinder member that are adapted to provide relative movement therebetween when the device senses certain temperatures, one of the members being interconnected to the valve closure unit to move the same in unison therewith in opposition to the force of the spring when the other of the members is fixed from movement relative to the housing, and a movable stop carried by the housing and having a plurality of different set positions relative to the other member so as to be engaged by the other member at the particular set position of the stop and thereby fix the other member to the housing at that particular set position so that once the other member has been moved against the stop by the device sensing a particular temperature, the device will cause the one member to move to open the valve closure unit relative to the valve seat unit when the device senses a certain higher temperature than the particular temperature.
REFERENCES:
patent: 2833478 (1958-05-01), Middleton
patent: 2984853 (1961-05-01), Williams
patent: 3313483 (1967-04-01), Nallinger
patent: 3907199 (1975-09-01), Kreger
patent: 4522334 (1985-06-01), Saur
patent: 4537158 (1985-08-01), Saur
patent: 4550693 (1985-11-01), Saur
patent: 4674679 (1987-06-01), Saur
Robert Shaw Controls Company
Tapolcai William E.
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