Patent · US Expired

Method for operating an internal combustion engine and system and with sulfur-rich exhaust gas purification component and an internal combustion engine system operable therewith

US6293094A · kind A · utility

28Cited by

11References

3Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Jurgen Schmidt · Los Alamos, US
Gerd Tiefenbacher · Esslingen am Neckar, DE
Anton Waltner · Waiblingen, DE

Key dates

Filing date	Sep 17, 1999
Grant date	Sep 25, 2001
Priority date	—
Expiry date	Sep 17, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2900/1612
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method for operating an internal combustion engine system includes operating the internal combustion engine system in a desulfurization mode each time following a cold-start of the engine prior to the transition to a normal operating mode. The internal combustion engine system includes (1) an exhaust line; (2) a sulfur-rich exhaust purification component comprising at least two exhaust purification units connected in series in the exhaust line; and (3) a secondary air supply having separate branches for the sulfur-rich exhaust purification units.

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