Haynes Corporation

Edward H Harrison

Edward A Schlairet

Keith Mulder

Ed A Schlairet

Schultz Gregory Lee

A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine.

Speed and position sensing device for EMD two-cycle diesel engines

A modified pump follower device () and method of retarding injection timing of EMD-type unit injectors by a desired amount of crank degrees includes the steps of providing a modified pump follower () whose plunger engagement location, also known as t-slot (), varies depending on the desired amount of retarding. Specifically, the modified pump follower () has a t-slot () which has a predetermined distance t' on the modified pump follower (), as compared to conventional pump followers having a predetermined distance t, such that the t-slot () is closer to the top face () of the pump follower (). The difference in spacing between the original timing t and the retarded timing t&#x2032; is r, which is an amount equal to the amount of retardation, in linear units, that corresponds to the desired amount of retardation in crank degrees.

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Goodland, FL, United States of America

Edward H Harrison