Patent · US Active

Method for producing an aluminum cylindrical hollow body for a vehicle transmission and a cylindrical hollow body

US11772212B2 · kind B2 · utility

1Cited by

0References

18Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Christian Ruhl · Friedrichshafen, DE
Helmut Boehm · Sankt Ingbert, DE
Martin Brehmer · Tettnang, DE

Key dates

Filing date	May 19, 2020
Grant date	Oct 3, 2023
Priority date	—
Expiry date	Jul 15, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2055/176
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The relates to a method for producing and machining a cylindrical hollow body constructed of aluminium or an aluminium alloy and for arranging said hollow body in a motor vehicle transmission. The hollow body is produced by a casting process such that the hollow body has an inner and an outer lateral surface and has teeth in at least one sub-region of the inner lateral surface. For machining, the hollow body is centrally clamped. The hollow body is arranged in the vehicle transmission by tooth flanks of the internal teeth. In the disclosed method according to the disclosure, the hollow body is centrally clamped at a tip diameter of the internal teeth. The disclosure further relates to a corresponding cylindrical hollow body and to a corresponding vehicle transmission.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.