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:
May. 23, 1995
Filed:
Feb. 26, 1993
Hiromitsu Ando, Okazaki, JP;
Osamu Hirako, Okazaki, JP;
Shogo Omori, Okazaki, JP;
Jun Takemura, Toyota, JP;
Taizo Kitada, Okazaki, JP;
Katsuo Akishino, Okazaki, JP;
Yasuki Tamura, Okazaki, JP;
Michihiro Hata, Okazaki, JP;
Kinichi Iwachido, Nagoya, JP;
Masayuki Motomochi, Toyota, JP;
Syunsuke Matsuo, Kyoto, JP;
Nobuaki Murakami, Kyoto, JP;
Keizo Furukawa, Kyoto, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A stratified burning internal combustion engine according to this invention is equipped with an intake port and a fuel feed device so that stratified tumble flows of different fuel concentrations can be formed in a combustion chamber. An ignition device is provided in the combustion chamber to ignite at least one of the tumble flows, said at least one tumble flow being rich in fuel. To promote the stratified tumble flows, a top wall of a piston has an inclined wall. This makes it possible to strengthen the tumble flows, whereby the stratification of an air-fuel mixture in the combustion chamber can be improved further to permit lean burn at a larger air/fuel ratio.