公开(公告)号：US20200080466A1

公开(公告)日：2020-03-12

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 ,  Benjamin 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：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：US10961900B2

公开(公告)日：2021-03-30

申请号：US16537821

申请日：2019-08-12

Applicant: Cummins Inc.

Inventor： David Guillermo Gonzalez Medina ,  Alan C. Anderson ,  Matthew Keith Sease ,  David P. Richter ,  Rahul Bhardwaj

IPC: F02B37/007 ,  F02B37/16 ,  F02M35/02

Abstract: Methods and devices are disclosed for introducing a compressor bypass flow that is returned from location that is downstream of a pressure source of an internal combustion engine to an air filter housing that is located upstream of the pressure source.

公开(公告)号：US20250059928A1

公开(公告)日：2025-02-20

申请号：US18720876

申请日：2022-12-20

Applicant: Cummins Inc.

Inventor： Jisang Sun ,  Weiyang Lin ,  Krishnakanth Muraleedhara Kaimal ,  Kevin Martin Beam ,  Aiswarya Adusumilli ,  David Guillermo Gonzalez Medina

IPC: F02D41/14 ,  F01N9/00 ,  F02D35/02

Abstract: The present disclosure relates to engines with multiple cylinder banks. Systems and methods are disclosed that relate to engine operations that balance the output from the cylinder banks to improve engine health and performance.

公开(公告)号：US11799271B2

公开(公告)日：2023-10-24

申请号：US17175813

申请日：2021-02-15

Applicant: Cummins Inc.

Inventor： David Guillermo Gonzalez Medina ,  William Marshall Cover ,  Xu Han ,  Andrew Guy Kitchen ,  Daniel J. O'Connor ,  Alan C. Anderson ,  Nicholas James Welch ,  Jisang Sun

IPC: H01T13/46 ,  H01T13/32

CPC classification number: H01T13/467 ,  H01T13/32

Abstract: Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.

公开(公告)号：US20210184437A1

公开(公告)日：2021-06-17

申请号：US17175813

申请日：2021-02-15

Applicant: Cummins Inc.

Inventor： David Guillermo Gonzalez Medina ,  William Marshall Cover ,  Xu Han ,  Andrew Guy Kitchen ,  Daniel J. O'Connor ,  Alan C. Anderson ,  Nicholas James Welch ,  Jisang Sun

IPC: H01T13/46

Abstract: Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.