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Class Information
Number: 236/35
Name: Automatic temperature and humidity regulation > Cooling radiator > Air control
Description: Devices controlling the flow of air over the radiator according to the temperature of the fluid cooled or the cooling-air or the engine temperature.










Sub-classes under this class:

Class Number Class Name Patents
236/35.2 Shutters 12


Patents under this class:

Patent Number Title Of Patent Date Issued
8162086 Variable pitch radiator fan control system Apr. 24, 2012
8130505 Car fan controller Mar. 6, 2012
8073570 Hybrid air-conditioning system and method for controlling the same Dec. 6, 2011
7863839 Fan speed control system Jan. 4, 2011
7066114 Reverse fan operation for vehicle cooling system Jun. 27, 2006
7021071 Method and apparatus for controlling cooling fan of vehicle Apr. 4, 2006
6999906 Reconfiguration method for a sensor system comprising at least one set of observers for failure compensation and guaranteeing measured value quality Feb. 14, 2006
6824067 Method of cooling engine coolant flowing through a radiator Nov. 30, 2004
6374780 Electric waterpump, fluid control valve and electric cooling fan strategy Apr. 23, 2002
6336592 Thermal control for a test and measurement instrument Jan. 8, 2002
6337949 System for controlling an electric motor of a fan associated with heat exchangers in a motor vehicle Jan. 8, 2002
6182902 Device and method for automatically controlling rotating speed of fan cooler Feb. 6, 2001
6126079 Fan control Oct. 3, 2000
6016965 Vehicle cooling system with electric motor overcurrent inhibiting control Jan. 25, 2000
5947189 Heat exchanging system having cooling fan, for vehicle Sep. 7, 1999
5778693 Automotive hydraulic engine cooling system with thermostatic control by hydraulic actuation Jul. 14, 1998
5718373 System for controlling automobile cooling fan Feb. 17, 1998
5465589 Idle automated A/C system Nov. 14, 1995
5307644 Method and electronic device for controlling engine fan May. 3, 1994
4955431 Cooling device for an internal combustion engine and method for controlling such a cooling device Sep. 11, 1990
4875521 Electric fan assembly for over-the-road trucks Oct. 24, 1989
4804139 Cooling system for a water-cooled vehicle engine Feb. 14, 1989
4687132 Engine cooling fan coupling system controlled in concert with a cooling system thermostat Aug. 18, 1987
4658595 Cooling system for radiator and condenser of vehicles with an air conditioner and method of operating the same Apr. 21, 1987
4651922 Apparatus for controlling rotational speed of radiator fan Mar. 24, 1987
4590772 Air conditioning system for vehicle May. 27, 1986
4570849 Fan drive, particularly for cooling installation of vehicles Feb. 18, 1986
4555910 Coolant/refrigerant temperature control system Dec. 3, 1985
4487255 Control for a fluid-driven fan Dec. 11, 1984
4485624 Supercharged internal combustion engine equipped with an air intercooling system Dec. 4, 1984
4446697 Hydraulic fan drive system including variable displacement pump May. 8, 1984
4445583 Cooling fan control May. 1, 1984
4425766 Motor vehicle cooling fan power management system Jan. 17, 1984
4257554 Fan assembly Mar. 24, 1981
4228880 Pulse control of an electro magnetically actuated viscous fluid coupling Oct. 21, 1980
4223646 Hydraulic fan drive system Sep. 23, 1980
4200146 Method and apparatus for hydraulically driving and controlling a cooling fan Apr. 29, 1980
4176630 Automatic control valves Dec. 4, 1979
4174065 Fluid flow regulating systems Nov. 13, 1979
4124001 Electronic speed control for a variable speed fan drive Nov. 7, 1978
4062329 Fan drive system Dec. 13, 1977
4044287 Circuit for energizing the electromotor driving a blower Aug. 23, 1977
4036432 Variable speed fan drive system Jul. 19, 1977











 
 
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