Method and kit for preserving a fuel system of an aircraft engine
First Claim
1. A method for preserving a fuel system of an aircraft engine, the method being performed outside of an engine test cell in preparation for a period of inactivity of the aircraft engine and comprising:
- supplying preservation fluid to the fuel system of the aircraft engine;
opening a valve of the fuel system using a control device, other than an electronic engine controller of the aircraft engine, coupled to the fuel system via a connector configured to provide an interface between the electronic engine controller of the aircraft engine and the fuel system of the aircraft engine, the opening of the valve being performed without powering the electronic engine controller of the aircraft engine; and
driving a fuel pump of the fuel system without starting the aircraft engine using a driver coupled to an accessory gearbox of the aircraft engine to cause some of the preservation fluid to flow through the open valve and in at least part of the fuel system of the aircraft engine and to flush out fuel from the fuel system.
1 Assignment
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Accused Products
Abstract
A method and kit for preserving a fuel system of an aircraft engine outside of an engine test cell in preparation for a period of inactivity of the aircraft engine are disclosed. The method comprises: supplying preservation fluid to the fuel system of the aircraft engine; generating a signal to cause the opening of a valve of the fuel system using a control device other than the electronic engine controller of the aircraft engine; and driving a fuel pump of the fuel system to cause some of the preservation fluid to flow through the open valve and in at least part of the fuel system of the aircraft engine.
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Citations
13 Claims
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1. A method for preserving a fuel system of an aircraft engine, the method being performed outside of an engine test cell in preparation for a period of inactivity of the aircraft engine and comprising:
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supplying preservation fluid to the fuel system of the aircraft engine; opening a valve of the fuel system using a control device, other than an electronic engine controller of the aircraft engine, coupled to the fuel system via a connector configured to provide an interface between the electronic engine controller of the aircraft engine and the fuel system of the aircraft engine, the opening of the valve being performed without powering the electronic engine controller of the aircraft engine; and driving a fuel pump of the fuel system without starting the aircraft engine using a driver coupled to an accessory gearbox of the aircraft engine to cause some of the preservation fluid to flow through the open valve and in at least part of the fuel system of the aircraft engine and to flush out fuel from the fuel system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for preserving a fuel system of an aircraft engine, the method being performed outside of an engine test cell in preparation for a period of inactivity of the aircraft engine and comprising:
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supplying preservation fluid to the fuel system of the aircraft engine; opening a valve of the fuel system using a control device other than an electronic engine controller of the aircraft engine and without powering the electronic engine controller of the aircraft engine; and driving a fuel pump of the fuel system without starting the aircraft engine to cause some of the preservation fluid to flow through the open valve and in at least part of the fuel system of the aircraft engine and to flush out fuel from the fuel system. - View Dependent Claims (10, 11, 12, 13)
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Specification