F - Mech Eng,Light,Heat,Weapons – 01 – P
Patent
F - Mech Eng,Light,Heat,Weapons
01
P
123/153, 341/27
F01P 7/04 (2006.01) F01P 7/02 (2006.01) F01P 7/08 (2006.01) F01P 5/02 (2006.01) F01P 5/04 (2006.01)
Patent
CA 1250929
APPARATUS FOR CONTROLLING ROTATIONAL SPEED OF RADIATOR FAN ABSTRACT OF THE DISCLOSURE 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, res- pectively. 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.
507732
Borden Ladner Gervais Llp
Toyota Jidosha Kabushiki Kaisha
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