公开(公告)号：US20250075676A1

公开(公告)日：2025-03-06

申请号：US18814930

申请日：2024-08-26

Applicant: Cummins Inc.

Inventor： Donald J. Benson ,  Ross A. Phillips ,  Raymond V. Primus ,  Jin Young Song ,  Anthony Allan Shaull ,  Andrew Jacob Laska ,  Ahmad M. Sabri ,  David J. Benson

IPC: F02M61/20

Abstract: A fuel injector for gaseous fuel is provided. The fuel injector includes at least one valve having a valve seat and a plunger that engages the seat to prevent gaseous fuel flow and is displaced from the seat to permit gaseous fuel flow. Displacement of the plunger away from the seat to open the at least one valve is resisted by a first plunger control mechanism and then a second plunger control mechanism depending on the distance the plunger is lifted from the seat.