IP Library › Granted Patent US 10,379,003
Granted Patent B2
US 10,379,003 · App. 15/967,192 · Granted Aug 13, 2019

Fuel metering valve actuator initiated built in test

Inventors: Angelo Martucci (East Hartford, CT); William Donat (Manchester, CT); Amy R Grace (Ellington, CT); Thomas A Bush (Vernon Rockville, CT); Eric Nelson Hettler (Rochester, CT); Kevin Patrick McCormick (Auburn, NY)
Assignee: United Technologies Corporation
G01M15/14F01D21/003F02C7/232F02C9/263F05D2260/80
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Quick Facts
Patent No.
US 10,379,003
App. No.
15/967,192
Granted
Aug 13, 2019
Kind
B2
Abstract

A fuel actuation system may comprise a servo valve (SV) including a torque motor and at least one screen, a metering valve (MV) fluidly connected to the SV, and an electronic engine control (EEC) operatively connected to the SV. The EEC may be configured and disposed to determine a travel time of the MV, a travel distance of the MV, a pressure of a fuel, and/or a temperature of the fuel, generate at least one of a travel time history, a travel distance history, a fuel temperature history, and a fuel pressure history, and determine a level of degradation of the fuel actuation system based on the at least one of the travel time history, the travel distance history, the fuel temperature history, or the fuel pressure history.

Claims (10)

1. A fuel actuation system comprising:

a servo valve (SV) including a torque motor and at least one screen;

a metering valve (MV) fluidly connected to the SV; and

an electronic engine control (EEC) operatively connected to the SV, the EEC being configured and disposed to:

determine at least one of a travel time of the MV, a travel distance of the MV, a pressure of a fuel, or a temperature of the fuel;

store the at least one of the travel time of the MV, the travel distance of the MV, the pressure of the fuel, and the temperature of the fuel to a memory to generate at least one of a travel time history, a travel distance history, a fuel temperature history, and a fuel pressure history; and

determine a level of degradation of the fuel actuation system based on the at least one of the travel time history, the travel distance history, the fuel temperature history, or the fuel pressure history.

2. The fuel actuation system of claim 1 , wherein the level of degradation includes at least one of a change in the travel time or a change in the travel distance.

3. The fuel actuation system of claim 1 , wherein the level of degradation includes at least one of a change in the pressure of the fuel or a change in the temperature of the fuel.

4. The fuel actuation system of claim 1 , wherein the travel distance of the MV is determined by moving the MV for a pre-determined duration.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2018
From: MARTUCCI, ANGELO; DONAT, WILLIAM; GRACE, AMY R; BUSH, THOMAS A; HETTLER, ERIC NELSON; MCCORMICK, KEVIN PATRICK
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 045673/0280 →
Continuity (2)
Division 15017138 · Feb 5, 2016
Related Publication 20180246012A1 · Aug 30, 2018