Patent · US Expired

Flap valve for fuel aggregates

US6840502B2 · kind B2 · utility

6Cited by

10References

9Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Peter Haushaelter · Rheydt, DE
Michael-Thomas Benra · Castrop-Rauxel, DE
Rolf Lappan · Cologne, DE
Martin Nowak · Leverkusen, DE

Key dates

Filing date	Jan 31, 2003
Grant date	Jan 11, 2005
Priority date	—
Expiry date	Mar 10, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K1/2263
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A flap valve for fuel aggregates, such as fuel cells, comprises a flap arranged within a flow channel. A shaft for pivoting the flap is connected to the flap. Further, a seal disposed in a recess of the channel wall is provided, which comprises at least one pressure pocket connected with the flow channel.

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