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
Method of forming an isolation structure
Aqueous composition with agents to inhibit water evaporation
Organic light-emitting display and method of manufacturing the same
Defensin polynucleotides and methods of use
Clamp for fence panels
Method for maintaining a driver-independent braking intervention after a collision
Large scale data storage system with fault tolerance
  Randomly Featured Patents
Connector assembly with decoupling capacitors
Solid combustible composition
Bi-laminar pre-finished wall element and method of assembling same
Wall core color center display module
Toners and developers containing ether-containing quaternary ammonium salts as charge control agents
Motor driven sign with sliding panels
System and method for embedding dispersed miniature security marks
Control of hydrocarbon wells
Printhead assembly with printhead modules
Condom package