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:
Sep. 25, 1990
Filed:
Jan. 30, 1989
Applicant:
Inventor:
Eiji Hashimoto, Susono, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123276 ; 123260 ; 123302 ; 123305 ; 123661 ;
Abstract
A direct fuel injection type spark ignition internal combustion engine includes a combustion chamber including a shallow dish portion and a deep dish portion formed in a piston top portion, a spark plug located close to an axis of the combustion chamber, and a fuel injection nozzle located at a radially outermost portion of the combustion chamber. With this arrangement, a good ignition characteristic in a low engine load operation and an improved power characteristic in a high engine load operation are obtained. Further, due to that arrangement of the spark plug, the flame propagation distance is made as short as possible.