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 for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication syst
Pyrrolidine derivatives, pharmaceutical compositions containing the same, and methods of using the same
Methods and systems for sending messages regarding an emergency that occurred at a facility
Reoccuring keying system
Milk frother
LED illumination control using a simple digital command structure
Resistor and manufacturing method thereof
  Randomly Featured Patents
Block codeword decoder with confidence indicator
Device for reading out from sensors in the engine compartment of a motor-vehicle
Rolling apparatus and method of making product of miscellaneous cross section with use of same
Surprise container
Developing device, image forming apparatus, and image forming system
Synchronized high voltage generator
Vehicle upper rear bumper
Composition comprising at least one solid fatty alcohol, dyeing or lightening process using same and devices
Method of straddling an intraosseous nerve
Method of determining size of cardiac prosthesis