Reduced stall capacity torque converter

Details Reduced stall capacity torque converter Reduced stall capacity torque converter

2007-05-01

2007-05-01

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

C416S19700C, C060S361000

Reexamination Certificate

active

11285612

ABSTRACT:
The apparatus of the present invention provides a torque converter that is looser at stall than it is at 0.8 speed ratio. The torque converter includes a stator having a plurality of stator blades. The stator blades each define a primary leading edge, a trailing edge, and preferably include a flange defining a secondary leading edge. The stator blade flange extends away from each blade such that the secondary leading edge points generally to the primary leading edge of a preceding stator blade. In this manner, the secondary leading edge is designed at stall to catch flow coming past the primary leading edge of the upstream blade and to redirect the flow back out of the front of the stator. The secondary leading edge is further designed to hide in the wake of the primary leading edge at higher speed ratios.

REFERENCES:
patent: 2755628 (1956-07-01), Mamo
patent: 3014430 (1961-12-01), Schneider
patent: 5966934 (1999-10-01), Kosuge
patent: 6003311 (1999-12-01), Takada et al.
patent: 6993903 (2006-02-01), Shin

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