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. 07, 2000
Filed:
Sep. 08, 1998
Masahiro Aketa, Sakai, JP;
Hideya Miyazaki, Sakai, JP;
Yuzo Umeda, Sakai, JP;
Yuji Takemura, Sakai, JP;
Kubota Corporation, , JP;
Abstract
A fuel injection device for a diesel engine adapted to perform a preliminary injection (1) and a main injection (2) to a combustion chamber (3), wherein the preliminary injection (1) is adjusted to begin within a valve overlap term (40). Within the valve overlap term (40), no intake air is introduced into the combustion chamber (3) or a little if any and the combustion chamber (3) contains a gas of high temperature. If the preliminary injection (1) is conducted into this gas of high temperature within the combustion chamber (3), a preliminary injection fuel vaporizes soon to thereby shorten the ignition lag of a main injection fuel with the result of improving the combustion.