Patent · US Expired

Particle filter that can be regenerated by burning free for the exhaust gases of internal combustion engines

US5238472A · kind A · utility

18Cited by

12References

17Claims

0Family size

Assignee

J. Eberspacher · DE

Inventors

Wolfgang Pfister · Eßlingen, DE
Herbert Langen · Altbach, DE

Key dates

Filing date	Apr 2, 1992
Grant date	Aug 24, 1993
Priority date	—
Expiry date	Apr 2, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/30
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A particle filter for the exhaust gases of internal combustion engines is described, which can be regenerated by burning free, and in which the filter cartridges (12) include a support tube (16) with a lining of filter material (20). The support tubes 16 are conical. The lining with filter material (20) is preferably carried out such that the filter cartridge (12) has a cylindrical shape, i.e., the filter material (20) lining is thicker on the inlet side than on the outlet side. However, lining with an equal thickness of filter material (20) over the entire length of the conical part of the filter cartridge (12) is also shown.

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