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:
Jun. 25, 1985
Filed:
Dec. 29, 1983
Nobuhiro Kaibara, Higashimatsuyama, JP;
Toshio Ida, Higashimatsuyama, JP;
Shinji Okuda, Higashimatsuyama, JP;
Takayuki Motohashi, Higashimatsuyama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
A pintle on the tip of the nozzle needle, which is disposed to be fitted through the nozzle hole of the nozzle body opening in a combustion chamber of an engine, has a conical portion. The conical portion extends along substantially the whole length of the nozzle hole when the nozzle needle has its seating portion seated on a valve seating portion of the nozzle body, and has a depth gradually decreasing toward the combustion chamber to define between itself and the nozzle needle an annular gap gradually expanding toward the combustion chamber. A portion of the pintle, which is substantially on a level with an end of the nozzle hole remote from the combustion chamber when the seating portion of the nozzle needle is in its seated position, has a diameter substantially equal to the inner diameter of the above end of the nozzle hole.