ENGINE FAN CONTROL METHOD AND APPARATUS
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United States of America Patent
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Issued Date -
Nov 20, 2008
app pub date -
May 15, 2008
filing date -
May 18, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A thermal control system for an engine and/or peripheral components is disclosed wherein a fan may be actively coupled and decoupled from an engine's shaft based on a sensed parameter such as engine temperature, alternator temperature and/or supply fuel temperature. In one embodiment, the temperature is sensed at or near the engine thermostat or peripheral component and a controller controls an electromagnetic clutch to cause the fan to engage and disengage a shaft of the engine.
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