Invention Grant
- Patent Title: B-LCCR injector pilot valve orifice, armature and plunger guide arrangement
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Application No.: US14330657Application Date: 2014-07-14
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Publication No.: US09719476B2Publication Date: 2017-08-01
- Inventor: Tamas Rauznitz
- Applicant: Cummins Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins Inc.
- Current Assignee: Cummins Inc.
- Current Assignee Address: US IN Columbus
- Agency: Faegre Baker Daniels
- Main IPC: F02M41/16
- IPC: F02M41/16 ; F02M63/00 ; B05B9/04 ; F02M51/06 ; F02M47/02

Abstract:
A fuel injector device for injecting fuel into a combustion chamber of an internal combustion engine is provided in which the fuel injector includes a body having an upper chamber and a lower chamber, an annular shoulder between the upper and lower chambers, an armature assembly disposed in the upper chamber, and a pilot valve seat having an inlet orifice disposed in the lower chamber and an outlet orifice disposed in the upper chamber. The pilot valve seat has a shaft extending between the outlet and inlet orifice and an angled shoulder between the outlet and inlet orifice. The angle shoulder of the shaft prevents fuel flow around the shaft between the upper and lower chambers. The armature assembly is configured to move to an upward position and to a downward position, the shaft also being disposed within the armature assembly to guide the armature assembly between the upward and downward positions.
Public/Granted literature
- US20160010606A1 B-LCCR INJECTOR PILOT VALVE ORIFICE, ARMATURE AND PLUNGER GUIDE ARRANGEMENT Public/Granted day:2016-01-14
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