Invention Grant
- Patent Title: Fuel injector and method for controlling the same
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Application No.: US15724587Application Date: 2017-10-04
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Publication No.: US10982635B2Publication Date: 2021-04-20
- Inventor: Anthony Thomas Harcombe , George A. Meek
- Applicant: DELPHI TECHNOLOGIES IP LIMITED
- Applicant Address: BB St. Michael
- Assignee: DELPHI TECHNOLOGIES IP LIMITED
- Current Assignee: DELPHI TECHNOLOGIES IP LIMITED
- Current Assignee Address: BB St. Michael
- Agent Joshua M. Haines
- Priority: EP12169828 20120529
- Main IPC: F02M47/02
- IPC: F02M47/02 ; F02M63/00 ; F02M63/02 ; F02D41/38

Abstract:
A fuel injector includes a nozzle having at least one nozzle outlet. A valve needle is moveable with respect to a valve needle seating through a range of movement between a closed position and an open position to control fuel delivery through the at least one nozzle outlet. The movement of the nozzle needle is controlled by fuel pressure within a control chamber. The injector has first and second nozzle control valves for controlling fuel flow into and out of the control chamber to pressurise and depressurise the control chamber, respectively. The first nozzle control valve can operate selectively to place the control chamber in fluid communication with a fuel drain or to place the control chamber in fluid communication with a high pressure supply line. The second nozzle control valve can operate selectively to place the control chamber in fluid communication with a fuel drain.
Public/Granted literature
- US20180045153A1 FUEL INJECTOR AND METHOD FOR CONTROLLING THE SAME Public/Granted day:2018-02-15
Information query