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.

公开(公告)号：US20240344489A1

公开(公告)日：2024-10-17

申请号：US18604838

申请日：2024-03-14

Applicant: Cummins Inc.

Inventor： Raymond V. Primus ,  Ross A. Phillips ,  Anthony Allan Shaull ,  Andrew Jacob Laska

IPC: F02M21/02

CPC classification number: F02M21/0275 ,  F02M21/0254 ,  F02M21/0257

Abstract: A fuel injector for gaseous fuel is provided. The fuel injector includes a valve assembly with a first valve and a second valve. The first valve is actively controlled to permit and prohibit gaseous fuel flow through the first injector. The second valve is spaced from the first valve and passively controlled to open in response to the gaseous fuel flow though the first valve, and to close when the gaseous fuel flow is terminated by closing the first valve.

公开(公告)号：US20240344490A1

公开(公告)日：2024-10-17

申请号：US18604846

申请日：2024-03-14

Applicant: Cummins Inc.

Inventor： Raymond V. Primus ,  Ross A. Phillips ,  Anthony Allan Shaull ,  Andrew Jacob Laska

IPC: F02M21/02

CPC classification number: F02M21/0275 ,  F02M21/0254 ,  F02M21/0257

Abstract: A fuel injector for gaseous fuel is provided. The fuel injector includes a valve assembly with a fuel flow valve and a second valve. The fuel flow valve is actively controlled to permit and prohibit gaseous fuel flow through the fuel injector. The second valve is spaced from the fuel flow valve and passively controlled to open in response to the gaseous fuel flow though the fuel flow valve, and to close when the gaseous fuel flow is terminated by closing the fuel flow valve.