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:
Aug. 27, 2002
Filed:
Feb. 18, 2000
Shigeo Yamamoto, Obu, JP;
Kazuyoshi Nakane, Okazaki, JP;
Hiroaki Miyamoto, Okazaki, JP;
Dai Tanaka, Okazaki, JP;
Jun Takemura, Toyota, JP;
Hiromitsu Ando, Okazaki, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
When an increase in a temperature of an exhaust-gas purifying catalyst device in an in-cylinder injection type internal combustion engine is demanded, a temperature-increase control section in an electronic control unit accomplishes stratified combustion by causing each fuel injection valve to inject fuel directly into the associated combustion chamber in a compression stroke in such a way that the air-fuel ratio of the internal combustion engine is in a vicinity of a stoichiometric air-fuel ratio. This allows the temperature of the exhaust-gas purifying catalyst device to be maintained or increased without increasing fuel consumption.