Torque converter

Details Torque converter Torque converter

2005-01-11

2005-01-11

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

C416S19700C

Reexamination Certificate

active

06840041

ABSTRACT:
In a torque converter comprised of three major rotating elements, namely a pump impeller formed integral with a converter cover, a turbine runner to which a driving power is transmitted through a working fluid from the pump impeller, and a stator disposed between the pump impeller and the turbine runner, the stator is supported on a transmission case via a one-way clutch and has a plurality of stator blades. In order to balance the enhanced vehicle's startability and improved fuel economy at idle, the ratio W/D of a stator-blade axial length W to a torque-converter nominal diameter D is set to satisfy a predetermined inequality 0.030≦W/D≦0.052.

REFERENCES:
patent: 3888082 (1975-06-01), Haide
patent: 4624105 (1986-11-01), Nishimura et al.
patent: 4866935 (1989-09-01), Hayabuchi et al.
patent: 5058027 (1991-10-01), Becraft
patent: 5152139 (1992-10-01), Becraft
patent: 5313793 (1994-05-01), Kirkwood et al.
patent: 5487003 (1996-01-01), Iwasawa et al.
patent: 6003311 (1999-12-01), Takada et al.

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