Patent · US Expired

Flap mechanism

US6598854B1 · kind B1 · utility

14Cited by

10References

7Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Thomas Jessberger · Asperg, DE
Stefan Maier · Schwieberdingen, DE
Robert Vaculik · Erbach, DE

Key dates

Filing date	Apr 19, 2001
Grant date	Jul 29, 2003
Priority date	—
Expiry date	Apr 19, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D9/107
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A flap mechanism includes elements for compensating tolerances and shrinkage of the flap. The compensating elements include a flap edge which is applied to the flap by assembly injection molding after the flap has cooled, thereby decreasing any gap produced between the flap and a surrounding frame by shrinkage of the flap. In addition the flap has a flap shaft which can be journaled in the frame through a conical region on the shaft such that axial shrinkage of the shaft to produce a mounting which is free of play. This construction makes it unnecessary to use additional sealing elements at the mounting locations of the flap, and the flap is also prevented from vibrating in its mounting which, in a worst case scenario, could lead to destruction of the flap.

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