Controllable Cooling System for a Motor Vehicle, Coolant Pump Therefor, Impeller for Use in the Coolant Pump, and Method for Controlling a Coolant Flow in Such a Cooling System
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United States of America Patent
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Issued Date -
Dec 19, 2013
app pub date -
Nov 29, 2011
filing date -
Mar 4, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a controllable cooling system (1) for a motor vehicle, comprising a coolant circuit which routes coolant to and out of an internal combustion engine, and to a mechanically operated, controllable main coolant pump (3) and an electrically operated, controllable secondary coolant pump (5). The cooling system further comprises a control device which controls the main coolant pump (3) and the secondary coolant pump (5) in dependence on operating conditions of the internal combustion engine. The invention furthermore provides an electrically operated, controllable secondary coolant pump (5) for such a cooling system (1), an impeller (25) for use in this secondary coolant pump (5), and a method for controlling the coolant flow in such a cooling system (1).
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