Patent · US Expired

Viscous fan coupling unit

US4690103A · kind A · utility

1Cited by

4References

7Claims

0Family size

Assignee

Fichtel & Sachs · DE

Inventors

Werner Gob · Kürnach, DE
Peter Anders · Berlin, DE

Key dates

Filing date	Apr 4, 1986
Grant date	Sep 1, 1987
Priority date	—
Expiry date	Apr 4, 2006

Classification

Technology area (CPC G)Physics
CPC primaryG12B1/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A viscous fan coupling unit is controlled by a bimetallic strip. The bimetallic strip is subdivided by an elongate slot into two partial strips. The partial strips are interconnected by end portions of the bimetallic strip and by a cross-piece. The cross-piece acts on a control pin of the viscous fan coupling. This bimetallic stream reacts immediately on temperature changes of the air strip passing around the bimetallic strip. By the slot internal stresses are avoided such that the bimetallic strip can provide larger deflection paths and larger control forces in response to temperature changes.

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