초록

A torque converter assembly 10 includes a clutch assembly 36 having a sealed chamber 39 into which oil is selectively communicated, effective to cause a piston 40 to selectively engage a plate assembly 30.

대표청구항 ▼

A torque converter assembly 10 includes a clutch assembly 36 having a sealed chamber 39 into which oil is selectively communicated, effective to cause a piston 40 to selectively engage a plate assembly 30. ue converter into said hydraulic pressure chamber, and a frictional engage means provided betw

A torque converter assembly 10 includes a clutch assembly 36 having a sealed chamber 39 into which oil is selectively communicated, effective to cause a piston 40 to selectively engage a plate assembly 30. ue converter into said hydraulic pressure chamber, and a frictional engage means provided between said clutch cylinder and the pump impeller, wherein when the rotational speed of the turbine impeller is increased to a value equal to or higher than a predetermined value, said pressing piston operates said frictional engage means under the action of a centrifugal hydraulic pressure which is raised within said hydraulic pressure chamber in response to the increase in the rotational speed to connect said clutch cylinder and the pump impeller to each other, wherein said clutch cylinder is provided with an escape bore which permits an outer periphery of said hydraulic pressure chamber to be open to an exterior of said clutch cylinder, and a centrifugal valve which is operable to open said escape bore when the rotational speed of said clutch cylinder is lower than a predetermined value, and to close said escape bore when the rotational speed of said clutch cylinder is equal to or higher than the predetermined value.