摘要:
A fan assembly for a heat exchanger assembly associated with a vehicle having an internal combustion engine, which comprises : a hydraulic motor (20) including a drive shaft (46) mounted proximate said heat exchanger assembly (10), a fan (56) mounted on said drive shaft (46) ; a hydraulic pump (18) including a shaft (26) and an electrically operated magnetic clutch assembly (36) disposed on said shaft for driving said hydraulic pump by said internal combustion engine ; and a switch means (64) responsive to a preselect condition to assume an operative mode to activate said electrically operated magnetic clutch assembly (36).
摘要:
There is disclosed an over-the-road truck having an internal combustion engine of at least 149 KW including a radiator (1) and an electric fan assembly (4) therefor consisting of an electric motor (3) to which is attached an axial flow propeller fan (6) and operating only when necessary and of a minimum wattage determined by W = 2.35E wherein E is the engine power (KW) provided that the core size (M²) of the radiator (1) is 0.00259E and the air flow (M³/h) therethrough is at least 0.03E.