Torque transmission device
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorTakeo Hiramatsu
Life of this patent
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Abstract
A torque transmission device for eliminating the transmission of tortional vibration from a driving shaft to a driven shaft comprises a clutch capable of controlled slippage so that the speed of rotation of the driven shaft is lower than the speed of the driving shaft. Slippage of the clutch is controlled by sensing the speed of rotation and the fluctuation of the speed of rotating of the driving shaft and the speed of rotation of the driven shaft and regulating slippage so that the difference in rotation speed between the two shafts is greater than the fluctuation in rotation speed of the driving shaft. The clutch may be an electromagnetic clutch of which the exciting current is controlled or a friction clutch actuated by controlled hydraulic pressure. The clutch may be in parallel with a fluid coupling.
Claims13
Torque transmitting device comprising a driving shaft rotated with a tortional vibration, an output shaft, a clutch means for transmitting torque from said driving shaft to said output shaft while enabling relative rotation between said shafts, means for securing a difference in rotation speed between said driving shaft and said output shaft, means for sensing the amplitude of fluctuation in rotation speed of said driving shaft, and torque transmitting control means for controlling the transmission of torque by said clutch means from said driving shaft to said output shaft in the manner that the difference in rotation speed between said shafts is greater than the amplitude of fluctuation in rotation speed of said driving shaft sensed by said means for sensing the amplitude of fluctuation in rotation speed.
Torque transmitting device comprising a driving shaft rotated with a rortional vibration, an output shaft, transmission means for transmitting torque from said driving shaft to said output shaft while enabling relative rotation between said shafts, said torque transmitting mans comprising a fluid coupling and variable clutch means in parallel with said fluid coupling, first sensing means for sensing a difference in rotation speed between said driving shaft and said output shaft, second sensing means for sensing the amplitude of fluctuation in rotation speed of said driving shaft, and means for controlling slippage in said clutch means and thereby controlling the relative rotation of said shafts in the manner that the difference in rotation speed between said shafts as sensed by said first sensing means is greater than the amplitude of fluctuation in rotation speed of said driving shaft as sensed by said second sensing means, whereby said fluctuation is not transmitted to said output shaft.
Dependencies are inferred from the claim text.