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. 02, 2002
Filed:
Jun. 29, 2000
Xinshuang Nan, Bloomington, IL (US);
Ye Tian, Bloomington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A hydraulically actuated fuel injector includes an injector body that defines an actuation fluid passage, a low pressure area and a nozzle outlet. A piston having a hydraulic surface is positioned in the injector body and moveable a stroke distance between a retracted position and an advance position. At least one of the piston and injector body define a first cavity and a second cavity when the piston is located in an initial portion of its stroke distance. Before a first portion of the hydraulic surface is exposed to fluid pressure in the first cavity, and a second portion of the hydraulic surface is exposed to fluid pressure in the second cavity when the piston is in its initial portion of its stroke distance. A valve is positioned in the injector body and has an open position that fluidly connects the second cavity to the low pressure area when the piston is located in the initial portion of its stroke distance, and a closed position when the piston is located away from the initial portion of the stroke distance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile