New Structure Design for Hydro-viscous Clutch with a Speed Fluctuation Suppression Device

Hydro-viscous clutch (HVC) is a device that relies on multi-oil film shear force to transfer torque, which is especially suitable for fan, water pump and other large rotating machinery speed regulation and energy saving, with stepless speed control, light load starting, flexible braking, overload protection, low cost, convenient maintenance and many other advantages. Aiming at the problem of speed fluctuation caused by the existing HVC working under low pressure condition below 0.5Mpa, a new structure of HVC with speed fluctuation suppression device is proposed, and a speed detecting device is embedded in the driven disk fixed to the output shaft. The speed fluctuation suppression device can effectively reduce the speed fluctuation generated under low-pressure working conditions of the clutch at 0.5Mpa, greatly improving the stability and accuracy of the output of the device.