公开(公告)号：US20190264626A1

公开(公告)日：2019-08-29

申请号：US16333474

申请日：2017-09-19

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  John Jerl Purcell ,  John Peter Jones ,  John R. Anderson ,  Paul Andrew Leggott ,  Graham Dowson

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/18 ,  F02F1/24 ,  F02M26/41 ,  F02M26/47

Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.

公开(公告)号：US10724452B2

公开(公告)日：2020-07-28

申请号：US16333474

申请日：2017-09-19

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  John Jerl Purcell ,  John Peter Jones ,  John R. Anderson ,  Paul Andrew Leggott ,  Graham Dowson

IPC: F02D41/14 ,  F02D41/00 ,  F02M26/41 ,  F02M26/47 ,  F02D41/18 ,  F02F1/24

Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.