Automatic temperature and humidity regulation – Cooling radiator – Bypass
Patent
1981-10-16
1983-08-16
Tapolcai, William E.
Automatic temperature and humidity regulation
Cooling radiator
Bypass
236 93A, G05D 2312
Patent
active
043986625
ABSTRACT:
An oil temperature regulator having a by-pass first passage means through the regulator for the oil, a heat exchange second passage means separate from the first, a cooler for transfer of heat between the cooler and the heat exchange second passage means, a first valve movable to open and close a first port between said oil entrance and heat exchange second passage, a second valve downstream from the first valve movable to open and close a second port between the by-pass and heat exchange passages for directing oil away from said by-pass passage through said heat exchange second passage at a selected temperature, a third valve downstream from the second valve movable to open and close a third port between the by-pass first passage means and the oil exit and temperature responsive means at the entrance operable by the entering oil at a first temperature to open the normally closed first valve at this temperature and temperature responsive means operable by the exiting oil at a second temperature higher than said first temperature to open the normally closed second valve and close the normally open third valve at this second temperature.
REFERENCES:
patent: 2353577 (1944-07-01), Magrum et al.
patent: 2359448 (1944-10-01), Shaw
patent: 2379109 (1945-06-01), Shaw
patent: 2433454 (1947-12-01), Hoffman
patent: 2788176 (1957-04-01), Andersen
patent: 2988280 (1961-06-01), Kimm et al.
patent: 3506192 (1970-04-01), Otto
patent: 4190198 (1980-02-01), Casuga et al.
Modine Manufacturing Company
Tapolcai William E.
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