Patent · US Expired

Air filtration system

US6761748B2 · kind B2 · utility

20Cited by

9References

14Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Herbert Schenk · Memmingen, DE
Thomas Sowden Reinhold · Hachenburg, DE
Manuel Aisa · Zaragoza, ES

Key dates

Filing date	Dec 13, 2002
Grant date	Jul 13, 2004
Priority date	—
Expiry date	Dec 13, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An air filtration system for purifying an air stream, such as the intake air for an internal combustion engine, including a system plate (10), an unfiltered air zone (13), a filter housing (12) containing a filter element (16), and a filtered air zone (19). The filter element hermetically seals and separates the unfiltered air zone (13) from the filtered air zone. The unfiltered air zone (13) is configured by a first half shell (11), which is connected to the system plate (10) in a fixed, hermetically sealed manner. The filter housing (12) is also connected to the system plate in a fixed and sealed manner. The permanent, air-tight connection of the first half shell to the system plate allows the air filtration system to be manufactured in a simpler, more rapid and more cost effective manner by obviating the need for seals and connecting elements, as well as the need to assemble such parts.

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