Cummins Inc.

John Peter Jones

John Jerl Purcell, Iii

Paul Andrew Leggott

James A Dods

John R Anderson

Graham Dowson

John Jerl Purcell

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.

Cast-in-head EGR crossover tube with integral venturi tube for flow measurements

A cam rocker lever comprises an annular piece with an inner diameter, a cam lobe, a first linear portion, and a second linear portion. The cam lobe is disposed within the inner diameter of the annular piece. The first linear portion extends from a first side of the annular piece, and a second linear portion extends from a second side of the annular piece opposite the first side. The first linear portion is configured to connect to a stem of a valve such that the valve is displaced when the first linear portion is displaced.

Cam rocker lever for operating valves

Growing community of inventors

Windermere, FL, United States of America

John Peter Jones