公开(公告)号：US20230129719A1

公开(公告)日：2023-04-27

申请号：US18088156

申请日：2022-12-23

Applicant: Cummins Inc.

Inventor： J. Steven Kolhouse ,  Daniel J. O'Connor ,  Philipe F. Saad

IPC: F02P5/15 ,  F02D19/02 ,  F02D19/08 ,  F02P3/045 ,  F02P3/05 ,  F02P5/152 ,  F02P15/08 ,  F02P15/10

Abstract: Systems, apparatuses, and methods of controlling an ignitor are disclosed. A method includes: receiving, by a controller, fuel quality data regarding a fuel for a spark-ignition engine; determining, by the controller, a fuel quality metric based on the fuel quality data; and controlling, by the controller, an ignition energy characteristic of an ignitor in response to the fuel quality metric.

公开(公告)号：US11614027B2

公开(公告)日：2023-03-28

申请号：US16680921

申请日：2019-11-12

Applicant: Cummins Inc.

Inventor： Alan C. Anderson ,  William Marshall Cover ,  Xu Han ,  Nicholas James Welch ,  David Guillermo Gonzalez Medina ,  Xiao Qin ,  Andrew Guy Kitchen ,  Daniel J. O'Connor ,  Benjamín L. Olivas

IPC: F02B19/08 ,  F02B19/18

Abstract: A combustion pre-chamber assembly includes pre-chamber device body defining an annular plenum that is in fluid communication with the at least one bore that extends through the spark plug shell. The annular plenum is also in communication with at least one purging passage that extends from the annular plenum to an end surface of the pre-chamber device body. Residual exhaust gases in the annular volume of the spark plug are purged by fresh charge flow from the main combustion chamber as the piston approaches top dead center. The fresh charge flow that is provided to the annular plenum through the at least one purging passage and into the annular volume of the spark plug through the at least one bore through the spark plug shell.

公开(公告)号：US20220074379A1

公开(公告)日：2022-03-10

申请号：US17530596

申请日：2021-11-19

Applicant: Cummins Inc.

Inventor： J. Steven Kolhouse ,  Daniel J. O'Connor ,  Philipe F. Saad

IPC: F02P5/15 ,  F02D19/02 ,  F02D19/08 ,  F02P3/045 ,  F02P3/05 ,  F02P5/152 ,  F02P15/08 ,  F02P15/10

Abstract: A method of controlling an ignitor for a spark-ignition engine includes receiving, by a controller, at least one of fuel quality data regarding a fuel for the spark-ignition engine or a characteristic regarding the ignitor for the spark-ignition engine. The method additionally includes controlling, by the controller, an ignition energy characteristic of the ignitor in response to the at least one of the fuel quality data regarding the fuel or the characteristic regarding the ignitor for the spark-ignition engine.

公开(公告)号：US20200072142A1

公开(公告)日：2020-03-05

申请号：US16675600

申请日：2019-11-06

Applicant: Cummins Inc.

Inventor： J. Steven Kolhouse ,  David J. Stroh ,  Daniel J. O'Connor

IPC: F02D41/00 ,  F02B75/20 ,  F02M26/42 ,  F02D41/14

Abstract: One embodiment is a system comprising an internal combustion engine having one or more non-dedicated cylinders and one or more dedicated EGR cylinders configured to provide EGR to the engine via an EGR loop, a first spark plug coupled to each of the one or more non-dedicated cylinders, and a second spark plug coupled to each of the one or more dedicated EGR cylinders, wherein the second spark plug has a physical or dimensional characteristic that is different from the first spark plug. In certain forms each of the non-dedicated cylinders has only one of a first type of spark plug and each of the dedicated EGR cylinders has only one of a second type of spark plug. One or more of the characteristics that may vary between the first and second types of spark plugs include spark gap, electrode diameter, heat range, and ion sensing capability.