US 2024/0328467 A1 · CLUTCH D HUB FOR AUTOMATIC TRANSMISSION

Abstract

A clutch D hub for a transmission having first and second clutch packs and a shaft. A drum has a bottom wall and a sidewall extending therefrom. The bottom wall has an opening and the sidewall has splines formed in an inner surface that extend from an upper edge toward the bottom wall. The splines are engageable with the first clutch pack during operation. A spline hub formed separately from the drum has a top wall and a skirt extending therefrom. The top wall of the spline hub is coupled to the bottom wall of the drum to be non-rotatable relative thereto, so an opening in the top wall coaxially aligns with the opening in the bottom wall of the drum so the shaft is receivable therethrough. The spline hub has axially oriented splines formed in an outer surface, which are engageable with the second clutch pack during operation.

Claims20

Dependent claims

A clutch D hub for an automatic transmission having a first clutch pack, a second clutch pack, and a shaft, the clutch D hub comprising:

a cup-shaped drum having a bottom wall and a cylindrical sidewall that extends therefrom, the bottom wall having an opening therein, and the sidewall having a plurality of splines formed in an inner surface thereof extending from an upper edge toward the bottom wall, the plurality of splines being configured to engage with the first clutch pack during operation;
and
a spline hub formed separately from the drum and having a top wall and a cylindrical skirt that extends therefrom, wherein the top wall of the spline hub is coupled to the bottom wall of the drum such that the drum and the spline hub are non-rotatable relative to one another and such that an opening in the top wall of the spline hub is coaxially aligned with the opening in the bottom wall of the drum so as to be configured to receive the shaft therethrough, the spline hub having a plurality of axially oriented splines formed in an outer surface thereof that are configured to engage with the second clutch pack during operation.

A method for replacing an OEM clutch D hub for an automatic transmission having a first clutch pack, a second clutch pack, and a shaft, the method comprising:

separating the OEM clutch D hub, the shaft, the first clutch pack, and the second clutch pack;
obtaining a replacement clutch D hub, the replacement clutch D hub comprising:
a cup-shaped drum having a bottom wall and a cylindrical sidewall that extends therefrom, the bottom wall having an opening therein, and the sidewall having a plurality of splines formed in an inner surface thereof extending from an upper edge toward the bottom wall;
and
a spline hub formed separately from the drum and having a top wall and a cylindrical skirt that extends therefrom, wherein the top wall of the spline hub is coupled to the bottom wall of the drum such that the drum and the spline hub are non-rotatable relative to one another and such that an opening in the top wall of the spline hub is coaxially aligned with the opening in the bottom wall of the drum so as to be configured to receive the shaft therethrough, the spline hub having a plurality of axially oriented splines formed in an outer surface thereof;
positioning the shaft in the opening of the drum and in the opening of the spline hub;
positioning the first clutch pack so as to be engageable with the plurality of splines of the drum during operation of the automatic transmission;
and
positioning the second clutch pack so as to be engageable with the plurality of splines of the spline hub during operation of the automatic transmission.

6 more elements

Dependencies are inferred from the claim text.

Clutch d hub for automatic transmission

Life of this patent

Clutch d hub for automatic transmission

Life of this patent

Abstract

Claims20