Systems and methods for coking mitigation in fuel supply systems
AssigneeHamilton Sundstrand Corporation
InventorMurtuza Lokhandwalla
Life of this patent
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Abstract
A fuel supply component with coking mitigation includes a housing having a main fuel inlet and a main fuel outlet. The main fuel inlet and outlet define a main fuel flow path therebetween. The housing includes a de-oxygenated fuel inlet in fluid communication with the main fuel flow path downstream from the main fuel inlet. The de-oxygenated fuel inlet is configured and adapted to supply de-oxygenated fuel to the main fuel flow path to mitigate insoluble fuel elements from diffusing and adhering to a wall of the housing.
Claims14
A fuel supply component with coking mitigation, the fuel supply component comprising:
- a housing including a main fuel inlet, and a main fuel outlet defining a main fuel flow path therebetween, wherein the housing includes a de-oxygenated fuel inlet in fluid communication with the main fuel flow path downstream from the main fuel inlet, and wherein the de-oxygenated fuel inlet is configured and adapted to supply de-oxygenated fuel to the main fuel flow path to mitigate insoluble fuel elements from diffusing and adhering to walls of the fuel system component, wherein the fuel supply component is downstream from an oxygen removal unit, a fuel tank, and a fuel pump assembly and the oxygen removal unit is downstream from the fuel tank and the fuel pump assembly, such that the oxygen removal unit is configured and adapted to receive the de-oxygenated fuel from the fuel pup assembly which receive the de-oxygenated fuel from the fuel tank and supply it to the de-oxygenated fuel inlet to mitigate insoluble fuel elements from diffusing and adhering to walls of the fuel system component.
A fuel supply system with coking mitigation, the fuel supply system comprising:
- a fuel tank;
- a fuel pump assembly downstream from the fuel tank;
- an oxygen removal system downstream from the fuel tank configured and adapted to receive and de-oxygenate a portion of fuel from the fuel pump assembly, which receives the de-oxygenated fuel form the fuel tank;
- a fuel supply component downstream from the oxygen removal system and the fuel tank, wherein the fuel supply component includes a housing having a main fuel flow inlet and at least one de-oxygenated fuel inlet, and wherein the de-oxygenated fuel inlet is configured and adapted to supply de-oxygenated fuel to mitigate insoluble fuel elements from diffusing and adhering to walls of the fuel system component.
A method for mitigating coking in a fuel supply system, the method comprising:
- providing a first portion of fuel from a fuel tank to a fuel pump assembly and then to an oxygen removal system and a second portion of fuel from the fuel tank to the fuel pump assembly and then to a fuel supply component, wherein the oxygen removal unit is downstream from the fuel tank and the fuel pump assembly and is configured and adapted to receive and de-oxygenate the first portion of fuel from the fuel pump assembly, wherein the fuel supply component is downstream from the oxygen removal system and the fuel pump assembly;
- de-oxygenating the first portion of fuel with the oxygen removal system to generate a de-oxygenated fuel stream;
- providing the de-oxygenated fuel stream to a de-oxygenated fuel inlet of the fuel supply component, wherein the fuel supply component includes a housing having a main fuel flow inlet and the de-oxygenated fuel inlet;
- and
- providing the second portion of fuel to the main fuel flow inlet of the housing, wherein the de-oxygenated fuel stream is configured to generate a barrier of de-oxygenated fuel within the housing mitigate insoluble fuel elements from the second portion of fuel from diffusing and adhering to walls of the fuel system component.
Dependencies are inferred from the claim text.