Oil pump cover

Details Oil pump cover Oil pump cover

1996-04-03

1998-07-07

Luong, Vinh T.

Machine element or mechanism

Elements

Gear casings

F16H 5702

Patent

active

057751773

ABSTRACT:
A cover body formed with AC2B is fixed to a casing of an automatic transmission and has a hole in the shaft center thereof. The cover body is subjected over the surface of the hole to a solution heat treatment at 500 centigrade degree for 3 hours and is tempered at 180 centigrade degree fo 4 hours to acquire hardness of 90 HB of more. An iron stator shaft for supporting a stator of a torque converter is pressed into the hole in the cover body.
Since the plastic deformation of the hole part of the cover body is reduced, the interference between the stator shaft and the cover body is ensured, and the stator shaft is prevented from being displaced axially even at a high temperature.

REFERENCES:
patent: 4693353 (1987-09-01), Kobayashi et al.
patent: 4982826 (1991-01-01), Holbrook
patent: 5388679 (1995-02-01), Inoue et al.
patent: 5483850 (1996-01-01), Yamauchi
patent: 5515747 (1996-05-01), Okada et al.
patent: 5577421 (1996-11-01), Kim

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