Resources Contact Us Home
Engine cooling systems

Image Number 3 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
Methods and systems to accomplish variable width data input
PVD coated tool
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
Resource capacity monitoring and reporting
Display screen or portion thereof with graphical user interface
Push-up bar
Method and apparatus for transmitting and receiving a signal in a communication system
  Randomly Featured Patents
System and method for managing buildings
Process for forming photo-polymeric image
Method of manufacturing a semiconductor device with outline of cleave marking regions and alignment or registration features
Computer reputation-based message boards and forums
Envelope construction
Production of enzyme-resistant starch by extrusion
Method of and apparatus for compressing image data
Apparatus for flip-chip packaging providing testing capability
Method and apparatus for the preparation of clean gases