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
Image correction apparatus and image correction method
Digital rights management (DRM) locker
Access control center auto launch
Controlled thickness reduction for hot-dip coated, hot-rolled steel strip and installation used in this process
Refreshing group membership information for a user identifier associated with a security context
All hazards information distribution method and system, and method of maintaining privacy of distributed all-hazards information
Impregnated cloth
  Randomly Featured Patents
Reset lockout for circuit interrupting device
Method of manufacturing thermal transfer film for forming three dimensional patterns through dissolution processes
Assembly structure for electronic power integrated circuit formed on a semiconductor die and corresponding manufacturing process
Method for improving inversion layer mobility in a silicon carbide MOSFET
Method and apparatus for making vertical grain wood strands
Dual fiber collimator optical variable attenuator
Crutch design
Splash guard
Apparatuses and methods for generating electric fields
Method and apparatus for transferring chips