Heat exchange – With timer – programmer – time delay – or condition responsive... – Temperature responsive or control
Patent
1997-02-03
1999-10-05
Lazarus, Ira A.
Heat exchange
With timer, programmer, time delay, or condition responsive...
Temperature responsive or control
165296, 165299, 165916, 123 4142, 123 4144, 123196AB, G05D 2300
Patent
active
059608722
ABSTRACT:
In order to control the temperature of the transmission oil of a motor vehicle driven by a liquid-cooled engine, a coolant/transmission oil heat exchanger is provided. The coolant stream supplied to the heat exchanger is miscible in a thermostatic valve from recooled and non-recooled coolant in order to achieve a desired temperature. Preferably the thermostatic valve is controlled by the temperature of the transmission oil, but it is also possible to have two expanding material elements as control pistons of the thermostatic valve, with one control piston being provided in the oil chamber of the thermostatic valve and the other control piston being provided in the coolant mixing chamber of the thermostatic valve. It is also possible, for purposes of precontrol, to electrically heat at least one of the control pistons.
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Absmeier Christian
Brost Victor
Eckerskorn Winfrid
Huemer Gerhart
Kalbacher Klaus
Bayerische Motoren Werke Aktiengesellschaft
Lazarus Ira A.
McKinnon Terrell
Modine Laengerer & Reich GmbH
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