Invention Grant
- Patent Title: Dual mode combustion apparatus and method
- Patent Title (中): 双模燃烧装置及方法
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Application No.: US11998465Application Date: 2007-11-29
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Publication No.: US07685990B2Publication Date: 2010-03-30
- Inventor: Philip J. G. Dingle
- Applicant: Philip J. G. Dingle
- Applicant Address: US MI Troy
- Assignee: Delphi Technologies, Inc.
- Current Assignee: Delphi Technologies, Inc.
- Current Assignee Address: US MI Troy
- Agent Thomas N. Twomey
- Main IPC: F02B5/00
- IPC: F02B5/00 ; F02B3/00

Abstract:
A fuel injection apparatus for a fuel injector nozzle includes a moveable valve needle slideably located within a nozzle body, the nozzle body having an internal surface defining a valve seat between a fuel supply path and fuel outlets. The valve needle includes an obturator piston that is engagable with an axial fuel outlet and a two-stage lift mechanism for enabling lift of the valve needle. In a first stage lifted position of the valve needle, the valve face is spaced apart from the valve seat, and the obturator piston is positioned such that a fuel flow passage is opened between the obturator piston and the axial fuel outlet. In a second stage lifted position, the valve face is spaced further apart from the valve seat and the obturator piston is positioned such that the fuel flow passage between the obturator piston and the axial fuel outlet is substantially closed.
Public/Granted literature
- US20090139487A1 Dual mode combustion apparatus and method Public/Granted day:2009-06-04
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