Curtis C Vars
Engineers at Barrett Rd, Andover, NY
License number
Colorado 27734
Issued Date
Jul 11, 1991
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
3763 Barrett Rd, Andover, NY 14806
Professional information
Gas Mass Flow Control System
US Patent:
5873351, Feb 23, 1999
Filed:
Apr 16, 1997
Appl. No.:
8/840323
Inventors:
Curtis C. Vars - Andover NY
Jason E. Yost - Windsor CO
Jason E. Yost - Windsor CO
Assignee:
Woodward Governor Company - Loveland CO
International Classification:
F02M 2104
US Classification:
123527
Abstract:
A gas fuel admission system for use with a gas fuel supply and an internal combustion engine having an engine control unit that produces a desired mass flow signal. The system has a continuously variable gas fuel admission valve having a flow control element and nozzle for metering gas in sonic flow from the gas supply to the engine with insensitivity to the valve discharge pressure. An actuator moves the flow control element relative to the nozzle. The system also has a flow control circuit that responds to the desired mass flow signal from the engine control unit, a gas supply pressure signal from a gas supply pressure sensor, a gas supply temperature signal from a gas supply temperature sensor, and a flow control element position signal from a flow control element position sensor to determine the appropriate flow control element position needed to achieve the desired mass flow at the present engine operating conditions.
Valve For Controlling Gas Mass Flow
US Patent:
6016832, Jan 25, 2000
Filed:
Apr 16, 1997
Appl. No.:
8/834366
Inventors:
Curtis C. Vars - Andover NY
Jason E. Yost - Windsor CO
Joel L. McLane - Fort Collins CO
Donald R. Samuelson - Fort Collins CO
Gary F. Branch - Fort Collins CO
Jason E. Yost - Windsor CO
Joel L. McLane - Fort Collins CO
Donald R. Samuelson - Fort Collins CO
Gary F. Branch - Fort Collins CO
Assignee:
Woodward Governor Company - Loveland CO
International Classification:
F16K 3112
US Classification:
1374875
Abstract:
A fuel admission valve for metering gas without using a mass flow sensor. The valve uses a flow control element and nozzle, an actuator, a fuel supply pressure sensor, a fuel supply temperature sensor, a flow control element position sensor, and a flow control circuit to meter gas in sonic flow with insensitivity to the discharge pressure.