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. 29, 2003
Filed:
Apr. 09, 2001
Yanmar Co., Ltd., , JP;
Abstract
A combustion system for direct injection diesel engines, having a fuel injection nozzle provided with upper and lower rows of nozzle holes and disposed so as to be opposed to a deep dish combustion chamber of a small opening ratio. The directions of the upper nozzle holes ( ) in the upper row and those of the lower nozzle holes ( ) in the lower row are set so that fuel injected from the upper nozzle holes ( ) reaches a side wall of the combustion chamber and fuel injected from the lower nozzle holes ( ) impinges upon a bottom surface ( ) of the combustion chamber. A ratio of a fuel spray travel from the upper nozzle holes ( ) to a diameter of each of the upper nozzle holes is set to 150-250. The number of said upper nozzle holes ( ) is set twice as large as that of said lower nozzle holes ( ).