Patent ID: 6499442
Filing Date: 2002-12-31
Classification: F01P

Abstract:
A water pump assembly for controlling the flow of temperature control fluid in an internal combustion engine, the engine including an engine block, an air-intake manifold, at least one cylinder head, and an exhaust manifold, the water pump being disposed between the engine block and an outlet hose of a radiator and adapted to receive flow of temperature control fluid from the radiator, the water pump assembly comprising:a housing with an inlet and outlet; an electric motor assembly for causing fluid flow from the inlet to the outlet; an electronic engine temperature control valve including a housing mounted to the inlet of the water pump and the outlet of the radiator, the valve having a valve member reciprocatable between a first and second position, the valve member adapted to permit flow from temperature control fluid from the radiator to the inlet of the water pump in the first position and inhibiting flow in the second position, the valve member being positioned within the inlet of the water pump and adapted to close off flow of temperature control fluid from the radiator to the inlet of the water pump; a bypass inlet formed in the inlet of the water pump and adapted to channel a flow of temperature control fluid into the inlet of the water pump; and an electronic control system adapted to control the supply of pressurized hydraulic fluid to the valve for controlling actuation of the valve between the first and second position.