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:
Sep. 13, 2005
Filed:
Sep. 08, 2000
Rodney Alexander Houston, Woodvale, AU;
Koon Chul Yang, Woodvale, AU;
David Richard Worth, Shenton Park, AU;
Geoffrey Paul Cathcart, Yonkin, AU;
Michael Moore, Subiaco, AU;
Rodney Alexander Houston, Woodvale, AU;
Koon Chul Yang, Woodvale, AU;
David Richard Worth, Shenton Park, AU;
Geoffrey Paul Cathcart, Yonkin, AU;
Michael Moore, Subiaco, AU;
Orbital Engine Company (Australia) PTY Limited, Balcatta, AU;
Abstract
A method of treating NOx emmissions in the exhaust gas of an internal combustion engine having catalyst means including at least a first catalyst converter capable of treating NOx, the method including operating the engine in a first mode to promote a first set of conditions and in a second mode to promote a second set of conditions, wherein the first mode of operation includes operating the engine with a lean air-fuel ratio, and the second mode of operation includes operating the engine with a stoichiometic air-fuel ratio.