Claims
- 1. A fuel control for a gas turbine engine comprising:
- a) a metering valve having a variable flow area;
- b) means for measuring said flow area of said metering valve which is adapted to produce a first signal directly related to said flow area;
- c) means for measuring a mass flow of fuel through said metering valve which is adapted to produce a second signal directly related to said mass flow;
- d) means for determining that said second signal conforms to a specified accuracy criteria which is adapted to produce a third signal that indicates that said second signal conforms to said accuracy criteria;
- e) means for simultaneously storing said first and said second signals when said third signal indicates that said second signal conforms to said accuracy criteria;
- f) means for producing a fourth signal that relates the quotient of said stored first signal and said stored second signal;
- g) means for storing said fourth signal when said fourth signal is within a predetermined authority range;
- h) means for producing a fifth signal that is equivalent to the product of said first signal and said stored fourth signal;
- i) an electronic control that positions said metering valve as a function of said fifth signal.
- 2. A fuel control as described in claim 1 wherein said quotient is said stored second signal divided by said stored first signal.
Parent Case Info
This application is a division of application Ser. No. 07/666,315, filed Mar. 8, 1991, now U.S. Pat. No. 5,259,186.
US Referenced Citations (3)
Divisions (1)
|
Number |
Date |
Country |
Parent |
666315 |
Mar 1991 |
|