FLUID CLUTCH FOR ACTUATOR OF ENGINE FAN Russian patent published in 1997 - IPC

FIELD: engine engineering. SUBSTANCE: pusher 15 transmits a force provided by the rod of temperature sensitive member 13 to valve 6. The member is arranged in the cooling system. As a result, the clutch operation is synchronized with variations of the engine temperature. The torque is transmitted from driving disk 8 to housing 1 due to adhesion of high-viscosity liquid. When the temperature of the engine drops valve 6 shuts down the supply of the high-viscosity liquid to working space 2 and rotation of fan 18 stops. EFFECT: enhanced reliability. 2 cl, 1 dwg