Lock-up torque converter for automatic transmissions

Details Lock-up torque converter for automatic transmissions Lock-up torque converter for automatic transmissions

1989-07-03

1990-10-30

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 328, 1921062, F16H 4502, F16F 1512

Patent

active

049662619

ABSTRACT:
A lock-up torque converter for automatic transmissions which transmits the torque of an internal combustion engine from the engine crankshaft to the transmission input shaft is disclosed. The torque converter includes a converter cover, a turbine hub receiving the input shaft to provide a driving connection, a clutch piston slidably mounted on the turbine hub, and a turbine runner having the outer shell drivingly connected to the hub. The torque converter comprises a first torsional damper operably connected between the clutch piston and the turbine hub to provide a driving connection only when the clutch piston engages the converter cover, and a second torsional damper operably connected between the crankshaft and the converter cover to provide a driving connection during operation of the engine. During operation of the lock-up mechanism, the two dampers cooperatively operate in series with each other to provide an optimum damping effect.

REFERENCES:
patent: 2623411 (1952-12-01), Herndon
patent: 2726557 (1955-12-01), Ackerman
patent: 2844049 (1958-07-01), Lapsley et al.
patent: 3313181 (1967-04-01), Leonard et al.
patent: 3338358 (1967-08-01), Christenson et al.
patent: 4510747 (1985-04-01), Yoshida
patent: 4689954 (1987-09-01), Billet

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