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:
Jan. 06, 2015
Filed:
May. 20, 2010
Michael Peter Cooke, Gillingham, GB;
Michael Peter Cooke, Gillingham, GB;
Delphi International Operations Luxembourg S.A.R.L., Luxembourg, LU;
Abstract
A fuel injector includes a nozzle body with a nozzle bore, a first valve needle received within the nozzle bore and being engageable with a first seat region to control fuel delivery through a first set of nozzle outlets, and a second valve needle received within a valve bore provided in the first valve needle and being engageable with a second seat region arranged to control fuel delivery through a second set of nozzle outlets. A control chamber for fuel is provided between the first valve needle and the second valve needle, wherein movement of the first valve needle is responsive to fuel pressure in the control chamber, and wherein movement of the second valve needle is mechanically coupled to an armature of the first actuator arrangement. A second actuator arrangement controls movement of the first valve needle by controlling fuel flow into the control chamber.