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. 28, 2011
Filed:
Jan. 05, 2009
Dan Ibrahim, Metamora, IL (US);
Dan Ibrahim, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An intensifier quill for a fuel injector fluidly connects a fuel injector to a common rail. The intensifier quill selectively supplies fuel to the fuel injector at either an intensified pressure or un-intensified common rail pressure. Fuel supplied by the quill at both the intensified and un-intensified pressure passes through a quill body, which includes an actuation chamber, a control chamber and a pressurization chamber. Energizing an actuator of the quill allows fuel from the control chamber to flow to drain, increasing pressure inside the pressurization chamber and the fuel injector to intensified pressure. Upon energizing the actuator of the fuel injector, fuel injector injects fuel at the intensified pressure. When the quill's actuator is de-energized and the fuel injector's actuator is energized, fuel injector injects fuel at the un-intensified pressure.