A principle of silicone oil clutch.

Silicone oil fan clutch, with silicone oil as the medium, the use of silicone oil of high viscosity characteristics of torque transmission. The use of the radiator behind air temperature, especially Yu fan clutch engagement and separation of said automatic control fan clutch by a temperature sensor. When the temperatur. When the temperature is low, the silicone oil fan clutch separation does not flow and fan speed slow down, basically is idle. When the temperature is high, the viscosity of the oil to make the fan clutch combination, so the fan and pump shaft to rotate together, play a regulatory role to launch a degree.

Silicone oil fan clutch, a temperature sensing element is double metal coil or plate type temperature sensor temperature sensor. Special Yu Fan Clutch called the working process:

(1) when the flow through the radiator of the air temperature rises, bimetal temperature sensor heat deformation, forcing the valve shaft rotation driven plate, open the oil inlet hole. Silicone oil driven plate and the front cover between storage flows into the working chamber, between the active plate and the driven plate clutch engagement, the fan speed increase. Air temperature is high, the oil inlet opening angle is bigger, the fan speed will be faster.

(2) when the air flowing through the radiator temperature drops, bimetal temperature sensor restitution, valve plate to close the oil inlet hole, under the action of centrifugal force, silicone oil return oil storage cavity working cavity, clutch through an oil return hole from, the fan speed is very low. Reduce the consumption, the purpose of saving energy.

Two. The main function of the clutch: energy saving, noise reduction, reduction of three big functions.

Energy saving: when the engine is started or low temperature operation, Yu fan clutch will need special remind temperature to optimum operating temperature as soon as possible, thus control the fan does not need to be on the coolant supercooling; while the engine is running on economic cruising speed, control the speed of fan, the engine reaches thermal equilibrium. Oil saving effect around 4%-6%.

Noise: the engine at low temperature and economic cruising speed of operation, 1-2dB lower than a direct drive fan noise.

Reduction: along with the people environmental protection consciousness constantly improve, for automotive emission requirements in raising. Requirements of the automobile in the best working temperature in time as much as possible, to reduce emissions. Clutch as a unit in the cooling system, cooperate with other subsystems, so as to enable the engine to work in the best condition.

Three. Temperature control clutch components have:A front cover, a temperature sensor, valve shaft, valve plate, a driven plate, a housing, a drive shaft, O - ring, seal ring bearing, and other components.Front cover: it is located in the upper part of the silicone oil clutch. Special Yu Fan Clutch said generally consists of aluminum die casting or stamping form, appearance requirements of radiating ribs rounded and full, may not have broken teeth, burr; surface can not have stains, color difference. At the same time, according to different customer requirements, blasting, anodizing, galvanized processing method. Overall and clutch together. The function, it is the basis of temperature sense for installation; and it is also a part of the oil storage cavity.