Patent · US Expired

Fluid friction clutch

US4809833A · kind A · utility

10Cited by

10References

4Claims

0Family size

Assignee

Fichtel & Sachs · DE

Inventors

Gerd Brunken · Dittelbrunn, DE
Dieter Neugebauer · Schweinfurt, DE
Peter Rossmanek · Hemmingen, DE

Key dates

Filing date	Feb 17, 1987
Grant date	Mar 7, 1989
Priority date	—
Expiry date	Feb 17, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S384/905
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The fluid friction clutch, suitable especially for the cooling fan of an internal combustion engine, has an aluminum housing mounted rotatably by means of a rolling bearing on a drive shaft. The outer race ring of the bearing is seated directly in a tubular bearing extension piece of the aluminum housing. A ring part, held on the bearing extension piece, of a material with lower coefficient of thermal expansion than aluminum, is secured on the bearing extension piece and prevents its widening with rising working temperature.

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