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
Computer program, system, and method for mapping Social Security claiming strategies
Systems and methods for automobile accident claims initiation
Dual work function recessed access device and methods of forming
Cell surface display, screening and production of proteins of interest
Nucleic acid sequences encoding secE/sec61-gamma subunits of protein translocation complexes
Solid-state image sensing device and control method of solid-state image sensing device
Personal warming apparatus
  Randomly Featured Patents
Needlepunched nonwoven with centrally-located binder
Code imprinting system having error preclusion function
Pharmaceutical compositions comprising fesoterodine
Personal communication tool and method of use
Over-pressurization protection system for cryogenic vessel
Method and system for providing redundancy in railroad communication equipment
Method and apparatus for reducing TCP frame transmit latency
Apparatus, method, and system for sizing markets
Shared via decoupling for area arrays components
Electric vehicle