Invention Grant
- Patent Title: Pump active inlet valve spilling residual pressure
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Application No.: US17605174Application Date: 2019-04-22
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Publication No.: US11668261B2Publication Date: 2023-06-06
- Inventor: Donald J. Benson
- Applicant: Cummins Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins Inc.
- Current Assignee: Cummins Inc.
- Current Assignee Address: US IN Columbus
- Agency: Taft, Stettinius & Hollister LLP
- International Application: PCT/US2019/028480 2019.04.22
- International Announcement: WO2020/219007A 2020.10.29
- Date entered country: 2021-10-20
- Main IPC: F02D41/38
- IPC: F02D41/38

Abstract:
A method and system is provided of controlling a pump having a pumping element comprising: determining, by a controller, a suspension of one or more fuel delivery events for a pumping element of the at least one pumping element; subsequent to determining the suspension of the one or more fuel delivery events, providing, by the controller, a first command to open an inlet valve of the pumping element to remove a portion of residual fluid within a pumping chamber based on pressure within the pumping chamber of the pumping element; and subsequent to providing the first command, providing, by the controller, a second command to close the inlet valve of the pumping element based on a top dead center (TDC) position of the pumping element.
Public/Granted literature
- US20220186675A1 PUMP ACTIVE INLET VALVE SPILLING RESIDUAL PRESSURE Public/Granted day:2022-06-16
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