Resources Contact Us Home
Engine cooling systems

Image Number 5 for United States Patent #7069880.

A heater diverter valve (20) is provided in an engine cooling system having a radiator and a circulating pump, The valve has a first inlet (31) connected to a heater so that coolant flowing through the engine and then through the heater is returned to the pump return line through the valve via the first inlet and an outlet (33). A second inlet (32) is connected to engine and transmission oil coolers so that coolant which flows from the engine supply line through the coolers is returned to the pump return line via the second inlet and the outlet. The valve includes a shuttle (24) which at lower coolant temperatures closes off the second inlet (32) to prevent coolant flow. The second inlet (32) is opened at higher temperatures when a wax type thermal actuator pushes the shuttle towards the first inlet (31).

  Recently Added Patents
Maintenance tool of control systems
Authenticating messages sent between a vehicle and a central facility
Segmenting video based on timestamps in comments
Charge pump and method of biasing deep N-well in charge pump
Receiver and transmitter receiver system
Process for the preparation of diene polymers of statistical vinylarene-diene copolymers
Gas cap removal tool
  Randomly Featured Patents
Method for fabricating a trench-gated vertical CMOS device
Control rod drives for nuclear reactors
Connective tissue substitutes, method of preparation and uses thereof
Light emitting diode lamp
Barbecue grill slab
Process for making manganese (II) salt solutions containing ammonium salt
Olefin polymerization in the presence of a dehydrogenation catalyst
Data transfer apparatus and data transfer system
Lubricant composition containing alkoxylated amine salt of a dihydrocarbyldithiobenzoic acid
Perfume bottle