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:
Dec. 16, 1997
Filed:
Dec. 19, 1995
Akio Kawaguchi, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
An exhaust gas purification device comprising a rotary type heat accumulator rotated by a turbine. An NO.sub.x absorbent is carried on this heat accumulator. The exhaust gas discharged from the turbine circulates in the heat accumulator via an exhaust duct, and at this time, the heat accumulator is heated and, at the same time, NO.sub.x is absorbed into the NO.sub.x absorbent. Air discharged from the compressor is heated when circulating in the heat accumulator and is subsequently fed into the combustion vessel. When the fuel is supplied to the air to be fed into the heat accumulator and becomes a rich gaseous mixture, NO.sub.x is released from the NO.sub.x absorbent.