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
Highly stable electrolytic water with reduced NMR half line width
Method and device for reducing image color noise
Visual universal decryption apparatus and methods
Systems, methods, and apparatus to prepare a mobile device for provisioning
Process for filtering interferograms obtained from SAR images acquired on the same area
Process for the preparation of morphinane analogues
MEMS autofocus actuator
  Randomly Featured Patents
Method and apparatus for internally caching the minimum and maximum XY pixel address values in a graphics subsystem
Method and apparatus for compensating participation in marketing research
Rubber composition for glass-run
Strawberry plant named `PS-5298`
Conversion of an HDL sequential truth table to generic HDL elements
Low current ground fault relay
Control apparatus for synchromesh type automatic transmission system
Method for isomerizing halogenated aromatics
Resin rheology control process and catalyst therefor
Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc