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. 12, 2016
Filed:
Oct. 27, 2011
Dong-hun Kim, Ulsan, KR;
Tae-hyung Park, Ulsan, KR;
Dong-Hun Kim, Ulsan, KR;
Tae-Hyung Park, Ulsan, KR;
HYUNDAI HEAVY INDUSTRIES, CO., LTD., Ulsan, KR;
Abstract
Disclosed herein is a fuel injection valve for an internal combustion engine. The fuel injection valve includes a valve body (), a nozzle (), a valve plate (), a main needle spindle (), a main needle (), a main needle spring (), a spring plate (), a pilot needle spring (), a pilot needle spindle () and a pilot needle (). In the present invention, both the main needle and the pilot needle are opened or only the pilot needle is opened by compressed high-pressure fuel oil or compressed air, thereby enabling main injection and pilot injection to be separately performed by the single fuel-injection valve. Furthermore, because opening of the main needle valve can be controlled by compressed air for ignition or control of an engine, only the pilot injection may be conducted even without using a separate compression apparatus or the like.