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:
Mar. 27, 2001
Filed:
Sep. 07, 1999
Applicant:
Inventors:
Minoru Yonezawa, Iwata, JP;
Yuji Kinoshita, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 2/310 ;
U.S. Cl.
CPC ...
F02B 2/310 ;
Abstract
A cylinder head construction for a direct injected internal combustion engine wherein a spark plug well is formed in the cylinder head and penetrates through its combustion chamber surface at the periphery of the combustion chamber. The opening of the nozzle receiving portion of the this well is relieved around the outer peripheral portion thereof so as to avoid the formation of an edge that can deteriorate through cracking.