Torque converter for an automatic transmission

Details Torque converter for an automatic transmission Torque converter for an automatic transmission

1989-02-21

1990-01-23

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 328, 192110R, 192110B, F16H 4502

Patent

active

048952320

ABSTRACT:
A torque converter has a converter cover secured to a crankshaft of an engine, an input shaft, a turbine secured to the input shaft, and a lockup clutch including a lockup piston. A pilot boss having an axial hollow therein is secured to the converter cover. An outer end of the pilot boss is engaged with a hole formed in the crankshaft, and an inner end of the pilot boss is rotatably mounted in a hub of the turbine, thereby rotatably supporting the turbine. An oil passage is formed in the input shaft and the pilot boss, for supplying release oil to a release side chamber formed between the converter cover and the lockup piston so as to disengage the lockup piston from the converter cover.

REFERENCES:
patent: 3706240 (1972-12-01), Bonneman et al.
patent: 3782186 (1974-01-01), Bunch et al.
patent: 4014223 (1977-03-01), Pierce, Jr.
patent: 4353444 (1982-10-01), Bionaz
patent: 4406355 (1983-09-01), Bionaz
patent: 4431094 (1984-02-01), Parthuisot et al.
patent: 4576260 (1986-03-01), Koshimo

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