Patent ID: 8196553
Filing Date: 2012-06-12
Classification: F01P

Abstract:
1. A cooling system for an internal combustion engine of a motor vehicle having a rotating member and using coolant in a liquid cooling system, comprising: a radiator for dissipating the heat from the coolant; an electric pump for pumping the coolant through the cooling system; a mechanical pump operatively connected to the rotating member for pumping coolant through the cooling system; a clutch that engages the mechanical pump and that fully disengages the mechanical pump, both the electric and mechanical pumps pumping coolant through the cooling system when the clutch engages the mechanical pump, only the electric pump pumping coolant through the cooling system when the clutch fully disengages the mechanical pump to minimize the parasitic loss of the system; and a mechanical fan that draws air through the radiator to remove heat from the coolant, the mechanical fan being operatively connected to the mechanical pump, the mechanical fan being engaged and disengaged by the clutch; and an electric fan that transfers air through the same radiator for transferring the heat from the coolant to the air.