Plastic torque converter stator with insert-molded one-way clutc

Details Plastic torque converter stator with insert-molded one-way clutc Plastic torque converter stator with insert-molded one-way clutc

1996-01-04

1997-08-12

Verdier, Christopher

Rotary kinetic fluid motors or pumps

Including shaft transmission train, brake, clutch, or...

Brake or clutch

415191, 415200, 4152082, 415915, 60339, 60345, 19211332, 264108, 26432812, F16D 1374, F16D 3320

Patent

active

056558759

ABSTRACT:
A torque converter stator made by injection molding of plastic material includes a metallic one-way clutch outer race which is insert molded within the stator hub. A plurality of recesses forming lubricant passages extend through the wall of a radial flange of the hub. The lubrication recess (30) is defined by a part-cylindrical outer wall (32) and a pair of planar side walls (34) spaced apart by a distance d. The juncture of the outer wall (32) and the side wall (34) is filleted to form a rounded corner (36) having a radius of curvature R1. To relieve the weld line (60) from concentration of residual stress due to post-molding shrinkage while avoiding stress concentration at the rounded corners (36), the ratio R1/d is selected to be 0.18-0.35.

REFERENCES:
patent: 4534456 (1985-08-01), Slezak
patent: 5094076 (1992-03-01), Henricks
patent: 5431536 (1995-07-01), By et al.

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