Patent · US Expired

Switching unit

US6341589B1 · kind B1 · utility

3Cited by

18References

22Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Thomas Jessberger · Asperg, DE
Armin Ludmann · Gerlingen, DE
Helmut Neuschwander · Ludwigsburg, DE

Key dates

Filing date	Oct 26, 2000
Grant date	Jan 29, 2002
Priority date	—
Expiry date	Oct 26, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A switching unit 10 for closing inlet passages 11 in an air intake system having a plurality of inlet passages 11 arranged side by side in an internal combustion engine. The switching unit 10 comprises one switched and one unswitched flow cross section 20 for each cylinder of the internal combustion engine, flap valves 12 and a shaft 27. The switched flow cross sections 20 can be closed and opened by flap valves 12 which are operated with the shaft 27, which is outside of the unswitched flow cross sections.

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