IP Library Granted Patent US 12,366,220
Granted Patent B2
US 12,366,220 · App. 18/425,680 · Granted Jul 22, 2025

De-preserving a fuel system of a turbine engine

Inventors: Joshua Seyler (Stuart, FL); Lajos H. Horvath (Jupiter, FL); Sami Chukrallah (West Palm Beach, FL); Richard D. Konney (Palm City, FL)
Assignee: RTX Corporation
F02M37/22B67D7/02F01D19/00F02M7/22
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Quick Facts
Patent No.
US 12,366,220
App. No.
18/425,680
Granted
Jul 22, 2025
Kind
B2
Abstract

A method is provided for treating a fuel system of a turbine engine. During this method, a treatment system is connected to the turbine engine. Preservation fluid is drawn out of the fuel system using the treatment system.

Claims (44)

1. A treatment system for a fuel system of a turbine engine, the fuel system including an injector, a fuel system interface and a flow regulator fluidly coupled between the injector and the fuel system interface, the treatment system comprising:

a control system configured to signal the flow regulator to open; and

a fluid system including a fluid system interface and a pump fluidly coupled with the fluid system interface, the fluid system interface configured to fluidly couple with the fuel system interface, and the pump configured to draw fluid out from the fuel system at the injector through the flow regulator;

wherein the pump is a first pump, and the fluid is preservation fluid; and

wherein the fluid system further includes a second pump configured to prime the fuel system with fuel after the preservation fluid is drawn out of the fuel system by the first pump.

2. The treatment system of claim 1 , further comprising:

a mobile housing;

at least one of the control system or the fluid system arranged with and mounted to the mobile housing.

3. The treatment system of claim 1 , wherein

the control system includes a wiring harness with a power input;

the control system is configured to selectively direct electrical current from power input to the flow regulator through the wiring harness.

4. The treatment system of claim 3 , wherein the power input is configured to electrically couple the control system with an outside power source.

5. The treatment system of claim 3 , further comprising:

a battery; and

the power input configured to electrically couple the control system to the battery.

6. The treatment system of claim 1 , wherein the fluid system further includes a container configured to receive the fluid drawn out from the fuel system by the pump.

7. The treatment system of claim 1 , wherein the pump is configured to draw the fluid out of the injector through the flow regulator.

8. The treatment system of claim 1 , wherein the pump is configured to draw the fluid out of the injector through the flow regulator independent of startup of the turbine engine.

9. A treatment system for a fuel system of a turbine engine, the fuel system including a fuel system interface, the treatment system comprising:

a fluid system including a fluid system interface, a pump and a container;

the fluid system interface configured to fluidly couple with the fuel system interface;

the pump fluidly coupled to and between the fluid system interface and the container, and the pump configured to draw preservation fluid out from the fuel system; and

the container configured to receive the preservation fluid drawn out of the fuel system by the pump;

wherein the pump is a first pump, and the fluid system further includes a second pump configured to prime the fuel system with fuel after the preservation fluid is drawn out of the fuel system by the first pump.

10. The treatment system of claim 9 , further comprising:

a mobile housing;

the fluid system arranged with and mounted to the mobile housing.

11. The treatment system of claim 9 , wherein the pump is configured to draw the preservation fluid out of a fuel injector of the fuel system.

12. The treatment system of claim 9 , further comprising a control system configured to signal a flow regulator of the fuel system to open.

13. The treatment system of claim 12 , wherein

the control system includes a wiring harness with a power input;

the control system is configured to selectively direct electrical current from power input to the flow regulator through the wiring harness.

14. The treatment system of claim 13 , wherein the power input is configured to electrically couple the control system with an outside power source.

15. The treatment system of claim 13 , further comprising:

a battery; and

the power input configured to electrically couple the control system to the battery.

16. A treatment system for a fuel system of a turbine engine, the fuel system including a fuel system interface, the treatment system comprising:

a fluid system including a fluid system interface, a pump and a container;

the fluid system interface configured to fluidly couple with the fuel system interface;

the pump fluidly coupled to and between the fluid system interface and the container, and the pump configured to draw preservation fluid out from the fuel system; and

the container configured to receive the preservation fluid drawn out of the fuel system by the pump;

wherein the pump is configured to draw the preservation fluid out of a fuel injector of the fuel system the fluid system interface;

wherein the pump is a first pump; and

wherein the fluid system further includes a second pump configured to prime the fuel system with fuel after the preservation fluid is drawn out of the fuel system by the first pump.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2025
From: SEYLER, JOSHUA; HORVATH, LAJOS H.; CHUKRALLAH, SAMI; KONNEY, RICHARD D.
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 071533/0360 →
CHANGE OF NAME Recorded Jun 26, 2025
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 071744/0144 →
Continuity (2)
Division 17371218 · Jul 9, 2021
Related Publication 20240167444A1 · May 23, 2024
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