Patent · US Expired

Exhaust gas purification apparatus for an internal combustion engine of motor vehicles

US4353208A · kind A · utility

18Cited by

7References

1Claims

0Family size

Assignee

Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

Herbert Volker · Hanau, DE
Polat ser · Wolfsburg, DE

Key dates

Filing date	Aug 19, 1980
Grant date	Oct 12, 1982
Priority date	—
Expiry date	Aug 19, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An exhaust gas purification apparatus for an internal combustion engine including a catalyst chamber containing a catalyst composition for the catalytic conversion of harmful substances contained in the exhaust gases wherein the interior wall of the exhaust pipe connecting the engine with the catalyst chamber is provided with a catalytically active coating for at least a portion of its length.

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