| 摘要 |
PURPOSE:To enable a fan to be driven without causing any necessity for using the turning torque of an electrically driven motor or an engine so as to eliminate the necessity for a battery while prevent the fan from being restricted by its mounting position, by coupling a rotary shaft of the cross flow fan in a radiator shroud to an oil hydraulic motor and connecting the oil hydraulic motor to an oil hydraulic pump driven by the engine through a selector valve. CONSTITUTION:An oil hydraulic motor 7 is coupled to a cross flow fan 1 arranged along the direction of width of a car body in a radiator shroud 4. Then the oil hydraulic motor 7 is connected to an oil hydraulic pump 6 driven by the output shaft of an engine 5 through a foward path 8 and a return path 11. A selector valve 10 is provided between the forward path 8 and the return path 11, in this way controlling a rotary speed of the fan by controlling an opening of the selector valve in accordance with the temperature of water and the operating condition of a cooler compressor. |
