APPARATUS FOR CONTROLLING ROTATIONAL SPEED OF RADIATOR FAN

APPARATUS FOR CONTROLLING ROTATIONAL SPEED OF RADIATOR FAN A cooling system for a radiator in an internal combustion engine is provided with a pair of fans connected to a first motor for a small electric current and a second motor for a large electric current, respectively. Relays are provided for o...

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Bibliographic Details
Main Author NOBA, MASAHIKO
Format Patent
LanguageEnglish
French
Published 07.03.1989
Edition4
Subjects
ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COOLING OF INTERNAL-COMBUSTION ENGINES
COOLING OF MACHINES OR ENGINES IN GENERAL
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
ENGINE PLANTS IN GENERAL
GENERATION
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
STEAM ENGINES
TRANSPORTING
VEHICLES IN GENERAL
WEAPONS
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Summary:APPARATUS FOR CONTROLLING ROTATIONAL SPEED OF RADIATOR FAN A cooling system for a radiator in an internal combustion engine is provided with a pair of fans connected to a first motor for a small electric current and a second motor for a large electric current, respectively. Relays are provided for operating the first and/or second motor sequentially in accordance with the degree of cooling requirement of the engine. A delay device is provided for delaying the operation of the relay(s) for attaining a stronger cooling requirement for a predetermined short period just after the engine is started. A generation of rush current in the relay contacts is prevented.
Bibliography:Application Number: CA19860507732