Patent · US Expired

Drive unit with a hydrodynamic retarder and transmission

US5944160A · kind A · utility

1Cited by

8References

9Claims

0Family size

Assignee

Voith Turbo GmbH & Co. KG · DE

Inventors

Werner Adams · Crailsheim, DE
Peter Edelmann · Oettingen, DE
Jurgan Friedrich · Crailsheim, DE
Peter Heilinger · Crailsheim, DE
Peter Rose · Heidenheim, DE
Klaus Vogelsang · Crailsheim, DE

Key dates

Filing date	Nov 27, 1996
Grant date	Aug 31, 1999
Priority date	—
Expiry date	Nov 27, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2186
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A drive unit for a motor vehicle having an engine; a transmission featuring a transmission housing; and a retarder featuring a rotor and a stator. A retarder shaft is provided that is supported by two bearings which are offset along the axial length of the retarder shaft. At least one of the bearings ("outside bearing") is supported by a wall ("outside wall") of the transmission housing. The retarder shaft protrudes freely beyond the outside wall of the transmission housing. Disposed on the retarder shaft, outside the outer bearing, on the outside wall, is a sealing component. The sealing component seals the clearance between the retarder (or pinion) shaft and the outside wall, preventing passage therethrough of the transmission oil and the operating medium of the retarder.

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