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:
Jan. 01, 2002
Filed:
May. 28, 1999
Kouichi Mori, Kanagawa-ken, JP;
Ritsuo Sato, Kanagawa-ken, JP;
Kimiyoshi Nishizawa, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A three-way catalytic converter and a combined catalytic-hydrocarbon adsorbent are arranged in an exhaust manifold of an engine . The three-way catalytic converter and the combined catalytic-hydrocarbon adsorbent are arranged adjacent to each other in series from an upstream. A pulsing stream of the exhaust gas is kept strong at the point where combined catalytic-hydrocarbon adsorbents are arranged. Thus, hydrocarbons desorbed from the combined catalytic-hydrocarbon adsorbents are strongly affected by an action of a pulsing stream of the exhaust gas, and hydrocarbons desorbed from the combined catalytic-hydrocarbon adsorbent flow backward in the direction of the three-way catalytic converter . Consequently, hydrocarbons desorbed from the combined catalytic-hydrocarbon adsorbent are given a chance to contact with the three-way catalytic converter again, and are oxidized with the three-way catalytic converter