Fan revolution speed control method

Details Fan revolution speed control method Fan revolution speed control method

2007-10-16

2007-10-16

Kershteyn, Igor (Department: 3745)

Power plants

Pressure fluid source and motor

Condition responsive control means responsive to, or...

C060S420000, C060S428000, C060S431000, C060S456000

Reexamination Certificate

active

10518606

ABSTRACT:
Temperature of each cooling target fluid is detected. When the flow rate of a cooling target fluid passing through a cooling system is high, the fan revolution speed of a cooling fan of the cooling system is controlled to achieve a target fan revolution speed so that the detected temperature of the cooling target fluid reaches a preset target temperature. In cases where the engine is in a low idling state, the flow rate of each cooling target fluid passing through the cooling system is reduced. The fan revolution speed of the cooling fan is controlled to achieve a new target fan revolution speed that is lower than the target fan revolution speed.

REFERENCES:
patent: 4798050 (1989-01-01), Nakamura et al.
patent: 5251440 (1993-10-01), Bong-dong et al.
patent: 5564274 (1996-10-01), Denbraber et al.
patent: 5-45207 (1993-06-01), None
patent: 11-294164 (1999-10-01), None
patent: 2000-110560 (2000-04-01), None
patent: 2002-023791 (2002-01-01), None
Patent Abstracts of Japan for JP2000-110560 published on Apr. 18, 2000.
Patent Abstracts of Japan for JP11-294164 published on Oct. 26, 1999.
Patent Abstracts of Japan for JP2002-023791 published on Jan. 25, 2002.
Patent Abstracts of Japan for JP5-45207 published on Jun. 18, 1993.

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