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
Organic semiconductor compound, semiconductor device, solar cell and producing method of organic semiconductor compound
Piezoelectric ultrasonic transducer apparatus
System and method for burst separation and extended interleaving length
Efficient file system metadata scanning using scoped snapshots
Use of cocoa extract
Data paths using a first signal to capture data and a second signal to output data and methods for providing data
Rim for a TV receiver
  Randomly Featured Patents
Plastic, heated water container for tape machines
Family tree picture holder
Process for small-scale testing of FCC catalysts
Method of enlarging contact area of a gate electrode, semiconductor device having a surface-enlarged gate electrode, and method of manufacturing the same
Conversion of crude oil feeds
Antenna system
Dispersant additives for lubricating oils and fuels
Recoil system with guided slide assembly for track-type vehicles
Method of selecting cable television converter groups
Mounting arrangement for outboard motor