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. 06, 2010
Filed:
Jul. 31, 2007
Dennis Henderson Gibson, Chillicothe, IL (US);
Mark F. Sommars, Sparland, IL (US);
Jin Hui Sun, Bloomington, IL (US);
Hoisan Kim, Peoria, IL (US);
Dennis Henderson Gibson, Chillicothe, IL (US);
Mark F. Sommars, Sparland, IL (US);
Jin Hui Sun, Bloomington, IL (US);
Hoisan Kim, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A fuel injector is provided having a needle valve element and a nozzle member with a central bore configured to slidingly receive the needle valve element. The fuel injector also has a spring configured to bias the needle valve element toward a closed position. In addition, the fuel injection assembly has a guide element configured to reduce a lateral movement of the needle valve element. The fuel injection assembly further has a fluid flow restricting device configured to restrict the flow of a fluid through the needle valve element and create a fluid pressure differential between the fluid upstream and downstream of the fluid flow restricting device.