The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2003
Filed:
Nov. 29, 2001
Applicant:
Inventors:
Christian Smatloch, Paderborn, DE;
Walter Gross, Detmold, DE;
Assignee:
Benteler Automobiltechnik GmbH & Co. KG, Paderborn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 ;
U.S. Cl.
CPC ...
F01N 3/00 ;
Abstract
An arrangement for treating exhaust emitted from an Otto engine with direct fuel injection, includes an engine-proximate catalytic converter and a NO adsorber which is linked to the catalytic converter by an exhaust pipe. An outer tube with a flexible length portion in the form of a metallic bellows surrounds the exhaust pipe at formation of a circumferential gap therebetween. Provided in the gap is a metal powder which releases or adsorbs hydrogen gas in dependence on a temperature in the gap, wherein the gap is evacuated to provide a heat-insulating atmosphere.