Gary F Mcdaniel

US Patent:

6752135, Jun 22, 2004

Filed:

Nov 12, 2002

Appl. No.:

10/292743

Inventors:

Bryant K. McLaughlin - Fort Collins CO
Justin L. Fulton - Fort Collins CO
Larry O. Gray - Fort Collins CO
Doyle Kent Stewart - LaPorte CO
Gary McDaniel - Fort Collins CO

Assignee:

Woodward Governor Company - Fort Collins CO

International Classification:

F02D 4114

US Classification:

123688, 123695, 123697, 123527

Abstract:

A control valve module for gaseous fuels on spark ignited reciprocating engines is presented. The control valve module has a valve that controls gaseous fuel flow to a mixer or other device for air/fuel ratio control, an actuator for moving the valve position, and a controller. The controller receives a signal from a heated exhaust gas oxygen (HEGO) sensor that is an indication of the fuel/air ratio and actuates the valve to control the combustion mixture to a precise stoichiometric ratio.

US Patent:

7017884, Mar 28, 2006

Filed:

Jan 8, 2004

Appl. No.:

10/754467

Inventors:

Barry T. Brinks - Fort Collins CO, US
Dana Nova Joyce Wolverton - Fort Collins CO, US
Delbert Dwight Cannon - Greeley CO, US
Gary F. McDaniel - Fort Collins CO, US

Assignee:

Woodward Governor Company - Fort Collins CO

International Classification:

F16K 31/02

US Classification:

25112911, 25112919, 251284, 12356824

Abstract:

A fluid metering valve includes a gear rack which is slidable on a valve stem in which a spring counteracts the force of an actuator to maintain a constant load on the gear mechanism to prevent backlash. Corresponding stop mechanisms between the gear and the shaft of a rotary actuator come into engagement with each other near a fully closed position of the fluid metering valve for zero calibration purposes upon power loss to the actuator. A single valve member and a single actuator of the fluid metering valve provides for both a shut-off function and a metering function.