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
Organic light emitting display device and method of manufacturing the same
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
Method of fabricating display device
Para-xylylene based microfilm elution devices
Biological information monitoring system
Personal alarm device for headwear for proximity detection
  Randomly Featured Patents
Breakaway and re-grow touchscreen pointing device
Process for oligomerizing olefins using halogenated phosphorous-containing acid on montmorillonite clay
2-(.alpha.-naphthoxy)-N,N-diethyl propionamide as an aqueous flowable concentrate
Sheet processing apparatus and sheet processing method
Light detecting photodiode-MIS transistor device
Derivatives of arabinogalactan and compositions including the same
Method and apparatus for installing a membrane to an electrolytic cell
Program selecting and character broadcasting receiving set
Crystal growth method
Inter-penetrating network charge modified microporous membrane