Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 25, 2007
Patent Application Number
10746997
Date Filed
December 23, 2003
Patent Primary Examiner
Patent abstract
For enhancement of heating performance of a vehicle, operating speed of a water pump of an engine is varied in accordance with engine operation conditions, so a speed of a coolant temperature increase can be accelerated when needed.
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