IP Library Granted Patent US 10,539,109
Granted Patent B2
US 10,539,109 · App. 15/977,611 · Granted Jan 21, 2020

Flushing of fuel nozzle assembly or component using a solution following ultrasonic cleaning

Inventors: Daniel Rodriguez (San Antonio, TX); Ulises Noguera (San Antonio, TX)
Assignee: STANDARD AERO (SAN ANTONIO) INC.
F02M65/008B08B7/028B08B9/027B08B9/032
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Quick Facts
Patent No.
US 10,539,109
App. No.
15/977,611
Granted
Jan 21, 2020
Kind
B2
Abstract

Fuel nozzle assemblies are flushed after ultrasonic cleaning. In one embodiment, a method includes: cleaning a fuel nozzle assembly by ultrasonic cleaning; and after the ultrasonic cleaning, flushing the fuel nozzle assembly using a solution, the fuel nozzle assembly comprising a valve located in an interior of the fuel nozzle assembly, the solution flowing through the interior of the fuel nozzle assembly, and the flowing of the solution controlled by the valve.

Claims (28)

1. A method, comprising:

cleaning a fuel nozzle assembly by ultrasonic cleaning;

after the ultrasonic cleaning, mounting the fuel nozzle assembly in a solution tank of a pressurized system, wherein the fuel nozzle assembly is mounted above a fluid level of a cleaning solution held in a solution tank; and

flushing the mounted fuel nozzle assembly using the cleaning solution, wherein the solution flows through an interior of the fuel nozzle assembly.

2. The method of claim 1 , wherein the fuel nozzle assembly comprises a valve located in the interior of the fuel nozzle assembly, and the valve opens to start the flowing of the cleaning solution when a preset pressure value of the valve is reached.

3. The method of claim 2 , wherein the valve is a metering valve adjusted to open when a liquid pressure of the cleaning solution is at least a preset value.

4. The method of claim 1 , further comprising flushing the interior of the fuel nozzle assembly with a calibration fluid.

5. The method of claim 1 , wherein the fuel nozzle assembly further comprises a spray tip, the spray tip includes inner cavities with residual debris from the ultrasonic cleaning, and the flowing of the cleaning solution removes at least a portion of the residual debris.

6. The method of claim 1 , wherein the fuel nozzle assembly further comprises a spray tip mounted to the fuel nozzle assembly.

7. The method of claim 1 , wherein the fuel nozzle assembly further comprises a metering set, and the flushing comprises flushing inner cavities of the metering set.

8. The method of claim 7 , wherein the flushing of the inner cavities of the metering set removes at least a portion of debris entrapped during the ultrasonic cleaning.

9. The method of claim 1 , wherein the cleaning solution is a liquid detergent.

10. The method of claim 1 , wherein the cleaning solution is pressurized during the flushing by providing the cleaning solution to the fuel nozzle assembly using a pump to flow the solution within the pressurized system, the system comprising a manifold overlying the solution tank, and the manifold receiving the cleaning solution from the pump and directing the cleaning solution to the fuel nozzle assembly during the flushing.

11. A method, comprising:

cleaning a fuel nozzle assembly or component by ultrasonic cleaning;

after the ultrasonic cleaning, mounting the fuel nozzle assembly or component in a solution tank, wherein the fuel nozzle assembly or component is mounted above a fluid level of a solution held in the solution tank; and

flushing the mounted fuel nozzle assembly or component using the solution, wherein the solution flows through an interior of the fuel nozzle assembly or component.

12. The method of claim 11 , wherein the solution is pressurized by providing the solution to the fuel nozzle assembly or component using a pump to flow the solution within a pressurized cleaning system that includes the solution tank.

13. The method of claim 12 , wherein the cleaning system includes a manifold overlying the solution tank, the manifold to receive the solution from the pump and direct the solution to the fuel nozzle assembly or component during the flushing.

14. The method of claim 11 , wherein the fuel nozzle assembly is flushed, and flowing of the solution through the interior of the fuel nozzle assembly begins after a pressurizing of the solution causes an opening of a metering valve of the fuel nozzle assembly.

15. A method, comprising:

after a fuel nozzle assembly or component has been cleaned by ultrasonic cleaning, mounting the fuel nozzle assembly or component in a solution tank of a pressurized system, wherein the fuel nozzle assembly or component is mounted above a fluid level of a cleaning solution held in the solution tank of the pressurized system; and

flushing the fuel nozzle assembly or component by flowing the cleaning solution in the pressurized system.

16. The method of claim 15 , wherein the fuel nozzle assembly is flushed, the fuel nozzle assembly comprises a metering valve located in an interior of the fuel nozzle assembly, the metering valve opens to start the flowing of the cleaning solution when the pressure is at least the preset value, and the cleaning solution flows through the interior of the fuel nozzle assembly.

17. The method of claim 15 , wherein the component is flushed, the component is a spray tip, and the cleaning solution flows through at least a portion of the spray tip during the flushing.

18. The method of claim 15 , wherein the fuel nozzle assembly is flushed, the fuel nozzle assembly further comprises a spray tip, the spray tip includes inner cavities with residual debris from the ultrasonic cleaning, and the flowing of the cleaning solution removes at least a portion of the residual debris.

19. The method of claim 15 , further comprising flushing the fuel nozzle assembly or component with a calibration fluid.

20. The method of claim 15 , wherein flowing of the cleaning solution through the fuel nozzle assembly or component is initiated when a pressure of the cleaning solution reaches at least a preset value.

Assignments (6)
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Nov 19, 2024
From: STANDARD AERO (SAN ANTONIO) INC.; AERO TURBINE, INC.; DALLAS AIRMOTIVE, INC.; INTERNATIONAL GOVERNOR SERVICES LLC; STANDARDAERO BUSINESS AVIATION SERVICES, LLC; STANDARDAERO COMPONENT SERVICES, INC.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 069386/0627 →
FIRST LIEN RELEASE OF SECURITY INTEREST IN PATENTS, RECORDED AT REEL 048846 FRAME 0432 Recorded Nov 19, 2024
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: PAS TECHNOLOGIES INC.; STANDARD AERO (SAN ANTONIO) INC.
Reel/Frame 069386/0768 →
RELEASE OF SECURITY INTEREST IN PATENTS (ABL), RECORDED AT REEL/FRAME 048846/0509 Recorded Nov 4, 2024
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: PAS TECHNOLOGIES, INC.; STANDARD AERO (SAN ANTONIO) INC.
Reel/Frame 069295/0610 →
SECURITY INTEREST Recorded Apr 10, 2019
From: PAS TECHNOLOGIES INC.; STANDARD AERO (SAN ANTONIO) INC.; STANDARDAERO BUSINESS AVIATION SERVICES, LLC; STANDARDAERO COMPONENT SERVICES, INC.
To: CREDIT SUISSE, AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 048846/0432 →
SECURITY INTEREST Recorded Apr 10, 2019
From: PAS TECHNOLOGIES INC.; STANDARD AERO (SAN ANTONIO) INC.; STANDARDAERO BUSINESS AVIATION SERVICES, LLC; STANDARDAERO COMPONENT SERVICES, INC.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 048846/0509 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 11, 2018
From: NOGUERA, ULISES; RODRIGUEZ, DANIEL
To: STANDARD AERO (SAN ANTONIO) INC.
Reel/Frame 045781/0957 →
Continuity (2)
Continuation 14631594 · Feb 25, 2015
Related Publication 20180258895A1 · Sep 13, 2018