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:
Jul. 16, 1985
Filed:
May. 18, 1984
Keiichi Yamada, Higashimatsuyama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
The nozzle body has a main nozzle hole and a sub nozzle hole formed therein, the latter being directed at a predetermined angle with the former and smaller in discharge area than the former. The nozzle needle slidably received in the nozzle body is disposed such that its tip is fitted in the main nozzle hole when the nozzle needle is in a seated position thereof, and the tip substantially remains in the main nozzle hole during lifting of the nozzle needle before the nozzle needle lifts through a predetermined stroke, whereby fuel is injected substantially solely through the sub nozzle hole in a first predetermined direction, while the tip of the nozzle needle substantially comes out of the main nozzle hole after the nozzle needle has lifted through the predetermined stroke, whereby fuel is injected mainly through the main nozzle hole in a second predetermined direction different from the first predetermined direction by the above predetermined angle. Control means is responsive to operating conditions of the engine to allow the nozzle needle to lift only through the above predetermined stroke in a low speed/low load region of the engine, while allowing the nozzle needle to lift beyond the predetermined stroke in a high speed/high load region of the engine.