TWO-PASS MULTI-FUNCTION TORQUE CONVERTER WITH NORMALLY CLOSED IMPELLER CLUTCH

摘要

A multi-function torque converter, comprising: a cover rotatable about a rotational axis and comprising opposite first and second sidewalls, the cover further comprising an outer wall extending between and interconnecting the opposite sidewalls; an impeller coaxially aligned with the rotational axis and comprising an impeller shell; a backing plate extending radially inward from and non-rotatable relative to the outer wall of the cover and being spaced between the opposite sidewalls of the cover, the backing plate having a first engagement surface; and, a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller, the turbine-piston comprising a turbine shell including a radial extension having a second engagement surface axially movable toward and away from the first engagement surface of the backing plate to position the torque converter into and out of a lockup mode in which the turbine-piston is mechanically locked to and non-rotatable relative to the backing plate.

主权项

1. A multi-function torque converter, comprising:
a cover rotatable about a rotational axis and comprising opposite first and second sidewalls, the cover further comprising an outer wall extending between and interconnecting the opposite sidewalls; an impeller coaxially aligned with the rotational axis and comprising an impeller shell; a backing plate extending radially inward from and non-rotatable relative to the outer wall of the cover and being spaced between the opposite sidewalls of the cover, the backing plate having a first engagement surface; and, a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller, the turbine-piston comprising a turbine shell including a radial extension having a second engagement surface axially movable toward and away from the first engagement surface of the backing plate to position the torque converter into and out of a lockup mode in which the turbine-piston is mechanically locked to and non-rotatable relative to the backing plate.