Patent · US Expired

Apparatus for the purification of exhaust gas from diesel motors

US4900517A · kind A · utility

42Cited by

16References

12Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Rainer Domesle · Alzenau, DE
Bernd Engler · Hanau, DE
Edgar Koberstein · Alzenau, DE
Herbert Volker · Hanau, DE

Key dates

Filing date	Sep 23, 1988
Grant date	Feb 13, 1990
Priority date	—
Expiry date	Sep 23, 2008

Classification

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

Abstract

An apparatus for cleaning the exhaust gases of diesel engines, and especially for removal of soot particulates, utilizing series connected filter elements installed in the cross section of a housing traversed by the exhaust gas, wherein at least one filter element carrying a catalyst that lowers the ignition temperature of the soot and assists in soot burn off alternates several times with at least one filter element carrying a catalyst that assists the combustion of gaseous pollutants.

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