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:
Apr. 03, 2001
Filed:
May. 10, 1999
Satoru Goto, Tokyo, JP;
Yoshifumi Nishi, Tokyo, JP;
Sadao Nakayama, Tokyo, JP;
Takeyuki Sakagami, Tokyo, JP;
Niigata Engineering Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a lean combustion gas engine which receives a drive output by means of supplying and combusting gas fuel in a main combustion chamber. The lean combustion engine of the present invention comprises: a main combustion chamber (,) which is surrounded by a piston (,), a cylinder (,) and a cylinder head (,); a precombustion chamber (,) equipped with a pilot fuel injection valve; and a spark plug (,) which serves as an ignition source for the fuel-air mixture within the main combustion chamber; wherein, the spark plug and pilot fuel injection valve-equipped precombustion chamber are provided in said cylinder head.