Patent · US Expired

Air filter element with a control tube and divided housing

US6090177A · kind A · utility

46Cited by

3References

9Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Klaus Moessinger · Löwenstein, DE
Ulrich Wittel · Waiblingen, DE
Hans Erdmannsdoerfer · Dobel, DE

Key dates

Filing date	Mar 9, 1999
Grant date	Jul 18, 2000
Priority date	—
Expiry date	Mar 9, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/30
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An air filter element, in particular for the cleaning of combustion air for internal combustion engines, in air filters with a substantially cylindrical, air-permeable housing. The air filter element has a raw air inlet area (2) and a clean air outlet area (3). The clean air outlet area is arranged substantially concentrically on one of the end surfaces of the cylindrical housing (1), and the raw air inlet area occurs substantially across the surface of the housing (1). An air-permeable center tube (4) connecting to the clean air outlet area extends inside the housing (1), and a substantially metal-free filter insert (5) is slid over the center tube (4) and separates the clean air from the raw air side. The opposite end surface (7) of the insert is sealed, and the clean air outlet side of the housing (1) has an axial seal (8) on the face thereof, it being possible to divide the housing (1).

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