Combustion chamber oil supply system

Abstract

A combustion chamber oil supply system is used for balancing the amount of fuel supplied to different fuel nozzles. Each first fuel nozzle is provided with a first main fuel inlet and a first auxiliary fuel inlet; each second fuel nozzle is provided with a second main fuel inlet and a second auxiliary fuel inlet; the main fuel oil pipeline is communicated with a first main oil inlet of each first fuel oil nozzle; the auxiliary fuel oil pipeline is communicated with a first auxiliary oil inlet of each first fuel oil nozzle and a second auxiliary oil inlet of each second fuel oil nozzle; the enriched fuel oil pipeline is communicated with a second main oil inlet of each second fuel oil nozzle; the flowing paths from the inlet of the main fuel oil pipeline to the first main oil inlets are the same; the flowing distances from an inlet of the auxiliary fuel oil pipeline to each first auxiliary oil inlet are the same, the flowing distances from the inlet of the auxiliary fuel oil pipeline to each second auxiliary oil inlet are the same, and the flowing distance from the inlet of the auxiliary fuel oil pipeline to each first auxiliary oil inlet is the same as the flowing distance from the inlet of the auxiliary fuel oil pipeline to each second auxiliary oil inlet.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel supply for the combustion chamber of an aeroengine, and particularly relates to a fuel supply system for a combustion chamber. Background Art

[0002] The Chinese patent application with the publication number CN113266472A discloses a fuel manifold with a dual - fuel - path nozzle. The dual - fuel - path nozzle is supplied with fuel from the main fuel path and the auxiliary fuel path. When the engine starts ignition or operates at a low state, only the main fuel path supplies fuel alone. When the engine power demand increases and enters the high - state, the main and auxiliary fuel paths supply fuel simultaneously to meet the fuel supply demand in the high - power state of the engine. The fuel quantities supplied to the fuel nozzles at different circumferential positions of the combustion chamber are inconsistent, resulting in uneven circumferential fuel supply in the combustion chamber, deteriorating the ignition performance and combustion stability of the combustion chamber. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fuel supply system for a combustion chamber, which is used to balance the fuel quantities supplied to different fuel nozzles.

[0004] According to an embodiment of the utility model, the fuel supply system for the combustion chamber includes a second fuel nozzle, a main fuel pipeline, an auxiliary fuel pipeline, an enriched - fuel pipeline, and at least two first fuel nozzles; each of the first fuel nozzles is configured with a first main fuel inlet and a first auxiliary fuel inlet; each of the second fuel nozzles is configured with a second main fuel inlet and a second auxiliary fuel inlet; the main fuel pipeline is connected to the first main fuel inlet of each of the first fuel nozzles; the auxiliary fuel pipeline is connected to the first auxiliary fuel inlet of each of the first fuel nozzles and the second auxiliary fuel inlet of each of the second fuel nozzles; the enriched - fuel pipeline is connected to the second main fuel inlet of each of the second fuel nozzles; wherein, the flow paths from the inlet of the main fuel pipeline to each of the first main fuel inlets are the same; the flow paths from the inlet of the auxiliary fuel pipeline to each of the first auxiliary fuel inlets are the same, the flow paths from the inlet of the auxiliary fuel pipeline to each of the second auxiliary fuel inlets are the same, and the flow paths from the inlet of the auxiliary fuel pipeline to each of the first auxiliary fuel inlets are the same as the flow paths from the inlet of the auxiliary fuel pipeline to each of the second auxiliary fuel inlets.

[0005] In one or more embodiments, the main fuel pipeline includes a main fuel primary pipeline and a main fuel secondary pipeline, and each of the main fuel primary pipelines is connected to two of the main fuel secondary pipelines. Fuel flows through the inlet of the main fuel pipeline, the main fuel primary pipeline, and the main fuel secondary pipeline to the first main fuel inlet.

[0006] In one or more embodiments, the auxiliary fuel pipeline includes an auxiliary fuel primary pipeline and an auxiliary fuel secondary pipeline, each of the auxiliary fuel primary pipelines is connected to two auxiliary fuel secondary pipelines, and the fuel flows to the first auxiliary fuel inlet and the second auxiliary fuel inlet through the inlet of the auxiliary fuel pipeline, the auxiliary fuel primary pipeline, and the auxiliary fuel secondary pipeline.

[0007] In one or more embodiments, each of the inlets of the main fuel pipeline is connected to two of the main fuel primary pipelines.

[0008] In one or more embodiments, each of the inlets of the subsidiary fuel pipeline is connected to two of the subsidiary fuel primary pipelines.

[0009] In one or more embodiments, the main fuel pipeline also includes a main fuel tertiary pipeline, each outlet of each main fuel secondary pipeline is connected to two main fuel tertiary pipelines, and the fuel flows to the first main fuel inlet through the inlet of the main fuel pipeline, the main fuel primary pipeline, the main fuel secondary pipeline, and the main fuel tertiary pipeline.

[0010] In one or more embodiments, the auxiliary fuel pipeline also includes an auxiliary fuel tertiary pipeline, each outlet of each of the auxiliary fuel secondary pipelines is connected to two of the auxiliary fuel tertiary pipelines, and the fuel flows to the first auxiliary fuel inlet and the second auxiliary fuel inlet through the inlet of the auxiliary fuel pipeline, the auxiliary fuel primary pipeline, the auxiliary fuel secondary pipeline, and the auxiliary fuel tertiary pipeline.

[0011] In one or more embodiments, the main fuel line is provided with one inlet.

[0012] In one or more embodiments, the secondary fuel line is provided with one inlet.

[0013] In one or more embodiments, the fuel enrichment pipeline includes an inlet and two fuel enrichment primary pipelines, the inlet of the fuel enrichment pipeline is connected to the two fuel enrichment primary pipelines, and the fuel flows to the second main oil inlet through the inlet of the fuel enrichment pipeline and the fuel enrichment primary pipeline.

[0014] The embodiments of the present invention have at least the following beneficial effects:

[0015] 1. The enriched fuel line supplies fuel to the second main fuel inlet of the second fuel nozzle separately. Controlling the fuel flow of the enriched fuel line can control the fuel injection amount of the second fuel nozzle, so that the fuel is fully burned and the ignition performance of the combustion chamber is optimized.

[0016] 2. Equalize the fuel injection amounts of all fuel nozzles at different circumferential positions in the combustion chamber with the same flow path, equalize the circumferential fuel supply amount in the combustion chamber, and optimize the ignition performance and combustion stability of the combustion chamber. Brief Description of the Drawings

[0017] The above-mentioned and other features, properties, and advantages of the present utility model will become more apparent through the following description with reference to the drawings and embodiments, wherein:

[0018] Figure 1 is a schematic diagram of the fuel supply system for the combustion chamber;

[0019] Figure 2 is a perspective view of the main fuel first-stage pipeline and part of the main fuel second-stage pipeline (or the auxiliary fuel first-stage pipeline and part of the auxiliary fuel second-stage pipeline);

[0020] Figure 3 is a perspective view of the main fuel second-stage pipeline and the main fuel third-stage pipeline (or the auxiliary fuel second-stage pipeline and the auxiliary fuel third-stage pipeline);

[0021] Figure 4 is a perspective view of the first fuel nozzle (or the second fuel nozzle).

[0022] Reference Numerals:

[0023] 100 - Main fuel pipeline;

[0024] 110 - Main fuel first-stage pipeline;

[0025] 111 - Inlet section of the main fuel pipeline;

[0026] 112 - Intermediate section of the main fuel first-stage pipeline;

[0027] 113 - Outlet section of the main fuel first-stage pipeline;

[0028] 120 - Main fuel second-stage pipeline;

[0029] 121 - Intermediate section of the main fuel second-stage pipeline;

[0030] 122 - Outlet section of the main fuel second-stage pipeline;

[0031] 130 - Main fuel third-stage pipeline;

[0032] 131 - Intermediate section of the main fuel third-stage pipeline;

[0033] 132 - Outlet section of the main fuel third-stage pipeline;

[0034] 200 - Auxiliary fuel pipeline;

[0035] 210 - Auxiliary fuel first-stage pipeline;

[0036] 211 - Inlet section of the auxiliary fuel pipeline;

[0037] 212 - Intermediate section of the first - stage auxiliary fuel pipeline;

[0038] 213 - Outlet section of the first - stage auxiliary fuel pipeline;

[0039] 220 - Second - stage auxiliary fuel pipeline;

[0040] 221 - Intermediate section of the second - stage auxiliary fuel pipeline;

[0041] 222 - Outlet section of the second - stage auxiliary fuel pipeline;

[0042] 230 - Third - stage auxiliary fuel pipeline;

[0043] 231 - Intermediate section of the third - stage auxiliary fuel pipeline;

[0044] 232 - Outlet section of the third - stage auxiliary fuel pipeline;

[0045] 300 - Enriched fuel pipeline;

[0046] 310 - Inlet section of the enriched fuel pipeline;

[0047] 320 - Intermediate section of the first - stage enriched fuel pipeline;

[0048] 330 - Outlet section of the first - stage enriched fuel pipeline;

[0049] 400 - First fuel nozzle;

[0050] 410 - First main fuel inlet;

[0051] 420 - First auxiliary fuel inlet;

[0052] 500 - Second fuel nozzle;

[0053] 510 - Second main fuel inlet;

[0054] 520 - Second auxiliary fuel inlet. Detailed implementation mode

[0055] Now, a detailed reference will be made to the embodiments of the present invention, one or more examples of which are shown in the drawings. Each example is provided to explain the present invention, not to limit it. In fact, it will be obvious to those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope or spirit of the present invention. For example, features shown or described as part of one embodiment can be used with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and changes that fall within the scope of the appended claims and their equivalents.

[0056] It should be noted that these and subsequent other drawings are only examples, and they are not drawn under the condition of equal proportion, and should not be used to limit the actual claimed protection scope of the present utility model.

[0057] The terms "first", "second", etc. can be used interchangeably to distinguish one feature from another, and are not intended to indicate that each feature must be located in the position shown in each embodiment.

[0058] As Figure 1 shown, the combustion chamber fuel supply system includes a main fuel pipeline 100, a secondary fuel pipeline 200, a rich fuel pipeline 300, a second fuel nozzle 500, and at least two first fuel nozzles 400. Further referring to Figure 4 , the first fuel nozzle 400 is a dual-fuel path nozzle, and each first fuel nozzle 400 is provided with a first main fuel inlet 410 and a first secondary fuel inlet 420. The main fuel pipeline 100 is connected to the first main fuel inlet 410 of each first fuel nozzle 400 to supply fuel to the first main fuel inlet 410 of each first fuel nozzle 400. The secondary fuel pipeline 200 is connected to the first secondary fuel inlet 420 of each first fuel nozzle 400 to supply fuel to the first secondary fuel inlet 420 of each first fuel nozzle 400. Further referring to Figure 4 , the second fuel nozzle 500 is a dual-fuel path nozzle, and each second fuel nozzle 500 is provided with a second main fuel inlet 510 and a second secondary fuel inlet 520. The secondary fuel pipeline 200 is connected to the second secondary fuel inlet 520 of each second fuel nozzle 500 to supply fuel to the second secondary fuel inlet 520 of each second fuel nozzle 500. The rich fuel pipeline 300 is connected to the second main fuel inlet 510 of each second fuel nozzle 500 to supply fuel to the second main fuel inlet 510 of each second fuel nozzle 500. The rich fuel pipeline 300 supplies fuel to the second main fuel inlet 510 of the second fuel nozzle 500 separately. Controlling the fuel flow rate of the rich fuel pipeline 300 can control the fuel injection amount of the second fuel nozzle 500, enabling the fuel to burn fully and optimizing the ignition performance of the combustion chamber.

[0059] As Figure 1As shown, the flow path from the inlet of the main fuel pipeline 100 to each first main fuel inlet 410 is the same, so that the pressurization time and flow resistance are the same, which can balance the fuel amounts supplied to the first main fuel inlets 410 of the first fuel nozzles 400 located at different circumferential positions of the combustion chamber. The inlet of the main fuel pipeline 100 can be provided by the main fuel pipeline inlet section 111. The flow path from the inlet of the auxiliary fuel pipeline 200 to each first auxiliary fuel inlet 420 is the same, so that the pressurization time and flow resistance are the same, which can balance the fuel amounts supplied to the first auxiliary fuel inlets 420 of the first fuel nozzles 400 located at different circumferential positions of the combustion chamber. The inlet of the auxiliary fuel pipeline 200 can be provided by the auxiliary fuel pipeline inlet section 211. The flow path from the inlet of the auxiliary fuel pipeline 200 to each second auxiliary fuel inlet 520 is the same, so that the pressurization time and flow resistance are the same, which can balance the fuel amounts supplied to the second auxiliary fuel inlets 520 of the second fuel nozzles 500 located at different circumferential positions of the combustion chamber. The flow path from the inlet of the auxiliary fuel pipeline 200 to each first auxiliary fuel inlet 420 is the same as the flow path from the inlet of the auxiliary fuel pipeline 200 to each second auxiliary fuel inlet 520, so that the pressurization time and flow resistance are the same, which can balance the fuel amounts supplied to the first auxiliary fuel inlets 420 of the first fuel nozzles 400 and the fuel amounts supplied to the second auxiliary fuel inlets 520 of the second fuel nozzles 500. Thus, the fuel injection amounts of all the fuel nozzles 400 and 500 at different circumferential positions of the combustion chamber are balanced, the circumferential fuel supply amount of the combustion chamber is balanced, and the ignition performance and combustion stability of the combustion chamber are optimized.

[0060] As Figure 1 and Figure 2 shown, the main fuel pipeline 100 may include a main fuel primary pipeline 110 and a main fuel secondary pipeline 120. Each main fuel primary pipeline 110 communicates with two main fuel secondary pipelines 120. Fuel flows through the inlet of the main fuel pipeline 100, the main fuel primary pipeline 110, and the main fuel secondary pipeline 120 to the first main fuel inlet 410. The fuel flow direction of the main fuel pipeline 100 is shown by solid arrows in Figure 1 . In the illustrated embodiment, each main fuel primary pipeline outlet section 113 branches into two main fuel secondary pipeline intermediate sections 121. Each main fuel primary pipeline 110 branches into two main fuel secondary pipelines 120, and the flow path from the inlet of the main fuel pipeline 100 to each first main fuel inlet 410 can be made the same by adjusting the spatial extension paths of different main fuel secondary pipelines 120.

[0061] As Figure 1 and Figure 2As shown, the auxiliary fuel pipeline 200 may include an auxiliary fuel primary pipeline 210 and an auxiliary fuel secondary pipeline 220. Each auxiliary fuel primary pipeline 210 communicates with two auxiliary fuel secondary pipelines 220. Fuel flows through the inlet of the auxiliary fuel pipeline 200, the auxiliary fuel primary pipeline 210, and the auxiliary fuel secondary pipeline 220 to the first auxiliary fuel inlet 420 and the second auxiliary fuel inlet 520. The fuel flow direction of the auxiliary fuel pipeline 200 is shown by a dotted arrow in Figure 1 In the illustrated embodiment, each outlet section 213 of the auxiliary fuel primary pipeline branches into two intermediate sections 221 of the auxiliary fuel secondary pipeline. Each auxiliary fuel primary pipeline 210 branches into two auxiliary fuel secondary pipelines 220, and by adjusting the spatial extension paths of different auxiliary fuel secondary pipelines 220, the flow paths from the inlet of the auxiliary fuel pipeline 200 to each first auxiliary fuel inlet 420 and the second auxiliary fuel inlet 520 can be made the same.

[0062] As Figure 1 and Figure 2 shown, each inlet of the main fuel pipeline 100 may communicate with two main fuel primary pipelines 110. In the illustrated embodiment, each inlet section 111 of the main fuel pipeline branches into two intermediate sections 112 of the main fuel primary pipeline. Each main fuel primary pipeline 110 may include an intermediate section 112 of the main fuel primary pipeline and a connected outlet section 113 of the main fuel primary pipeline. Each inlet of the main fuel pipeline 100 branches into two main fuel primary pipelines 110, and by adjusting the spatial extension paths of different main fuel primary pipelines 110, the flow paths from the inlet of the main fuel pipeline 100 to each first main fuel inlet 410 can be made the same.

[0063] As Figure 1 and Figure 2 shown, each inlet of the auxiliary fuel pipeline 200 may communicate with two auxiliary fuel primary pipelines 210. In the illustrated embodiment, each inlet section 211 of the auxiliary fuel pipeline branches into two intermediate sections 212 of the auxiliary fuel primary pipeline. Each auxiliary fuel primary pipeline 210 may include an intermediate section 212 of the auxiliary fuel primary pipeline and a connected outlet section 213 of the auxiliary fuel primary pipeline. Each inlet of the auxiliary fuel pipeline 200 branches into two auxiliary fuel primary pipelines 210, and by adjusting the spatial extension paths of different auxiliary fuel primary pipelines 210, the flow paths from the inlet of the auxiliary fuel pipeline 200 to each first auxiliary fuel inlet 420 and the second auxiliary fuel inlet 520 can be made the same.

[0064] As Figure 1 and Figure 3As shown, the main fuel pipeline 100 may further include a main fuel tertiary pipeline 130. Each outlet of each main fuel secondary pipeline 120 communicates with two main fuel tertiary pipelines 130. Fuel flows through the inlet of the main fuel pipeline 100, the main fuel primary pipeline 110, the main fuel secondary pipeline 120, and the main fuel tertiary pipeline 130 to the first main fuel inlet 410. In the illustrated embodiment, each main fuel secondary pipeline outlet section 122 branches into two main fuel tertiary pipeline intermediate sections 131. Each main fuel secondary pipeline 120 may include a main fuel secondary pipeline intermediate section 121 and a connected main fuel secondary pipeline outlet section 122. Each outlet of the main fuel secondary pipeline 120 branches into two main fuel tertiary pipelines 130, and the flow path from the inlet of the main fuel pipeline 100 to each first main fuel inlet 410 can be made the same by adjusting the spatial extension paths of different main fuel tertiary pipelines 130.

[0065] As Figure 1 and Figure 3 As shown, the auxiliary fuel pipeline 200 may further include an auxiliary fuel tertiary pipeline 230. Each outlet of each auxiliary fuel secondary pipeline 220 communicates with two auxiliary fuel tertiary pipelines 230. Fuel flows through the inlet of the auxiliary fuel pipeline 200, the auxiliary fuel primary pipeline 210, the auxiliary fuel secondary pipeline 220, and the auxiliary fuel tertiary pipeline 230 to the first auxiliary fuel inlet 420 and the second auxiliary fuel inlet 520. In the illustrated embodiment, each auxiliary fuel secondary pipeline outlet section 222 branches into two auxiliary fuel tertiary pipeline intermediate sections 231. Each auxiliary fuel secondary pipeline 220 may include an auxiliary fuel secondary pipeline intermediate section 221 and a connected auxiliary fuel secondary pipeline outlet section 222, or include an auxiliary fuel secondary pipeline intermediate section 221 and two branched auxiliary fuel secondary pipeline outlet sections 222. Each outlet of the auxiliary fuel secondary pipeline 220 branches into two auxiliary fuel tertiary pipelines 230, and the flow path from the inlet of the auxiliary fuel pipeline 200 to each first auxiliary fuel inlet 420 and the second auxiliary fuel inlet 520 can be made the same by adjusting the spatial extension paths of different auxiliary fuel tertiary pipelines 230.

[0066] As Figures 1 to 3 As shown, the main fuel pipeline 100 may be provided with one inlet. In the illustrated embodiment, the main fuel pipeline 100 is provided with one main fuel pipeline inlet section 111, two main fuel primary pipeline intermediate sections 112, two main fuel primary pipeline outlet sections 113, four main fuel secondary pipeline intermediate sections 121, four main fuel secondary pipeline outlet sections 122, and eight main fuel tertiary pipeline intermediate sections 131. Each main fuel tertiary pipeline intermediate section 131 communicates with a plurality of first fuel nozzles 400 through a plurality of main fuel tertiary pipeline outlet sections 132, and each main fuel tertiary pipeline outlet section 132 communicates with the first main fuel inlet 410 of one first fuel nozzle 400.

[0067] AsFigures 1 to 3 As shown, the auxiliary fuel pipeline 200 can be provided with an inlet. In the illustrated embodiment, the auxiliary fuel pipeline 200 is provided with an auxiliary fuel pipeline inlet section 211, two intermediate sections 212 of the first-stage auxiliary fuel pipelines, two outlet sections 213 of the first-stage auxiliary fuel pipelines, four intermediate sections 221 of the second-stage auxiliary fuel pipelines, five outlet sections 222 of the second-stage auxiliary fuel pipelines, and ten intermediate sections 231 of the third-stage auxiliary fuel pipelines. Each intermediate section 231 of the third-stage auxiliary fuel pipelines communicates with a plurality of first fuel nozzles 400 and a plurality of second fuel nozzles 500 through a plurality of outlet sections 232 of the third-stage auxiliary fuel pipelines. Each outlet section 232 of the third-stage auxiliary fuel pipelines communicates with a first auxiliary fuel inlet 420 of a first fuel nozzle 400 or a second auxiliary fuel inlet 520 of a second fuel nozzle 500.

[0068] As Figure 1 and Figure 4 shown, the enrichment fuel pipeline 300 can be provided with an inlet and two first-stage enrichment fuel pipelines. The inlet of the enrichment fuel pipeline communicates with the two first-stage enrichment fuel pipelines. Fuel flows through the inlet and the first-stage enrichment fuel pipelines of the enrichment fuel pipeline to the second main fuel inlet 510. In the illustrated embodiment, the inlet of the enrichment fuel pipeline 300 is provided by an inlet section 310 of the enrichment fuel pipeline. An inlet section 310 of the enrichment fuel pipeline branches into two intermediate sections 320 of the first-stage enrichment fuel pipelines. Each first-stage enrichment fuel pipeline includes an intermediate section 320 of the first-stage enrichment fuel pipeline and a connected outlet section 330 of the first-stage enrichment fuel pipeline, or includes an intermediate section 320 of the first-stage enrichment fuel pipeline and a plurality of connected outlet sections 330 of the first-stage enrichment fuel pipelines. Each outlet section 330 of the first-stage enrichment fuel pipelines communicates with a second main fuel inlet 510 of a second fuel nozzle 500. The inlet of an enrichment fuel pipeline 300 branches into two first-stage enrichment fuel pipelines, which can make the flow path from the inlet of the enrichment fuel pipeline 300 to each second main fuel inlet 510 the same by adjusting the spatial extension paths of different first-stage enrichment fuel pipelines, balance the fuel supply amount to each second main fuel inlet 510, and balance the fuel injection amount of each second fuel nozzle 500.

[0069] The pipes can be welded or thread-connected to each other and to the fuel nozzles.

[0070] Although the present utility model is disclosed above with embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present utility model.

Claims

1. A combustion chamber fuel supply system, characterized in that include: At least two first fuel nozzles, each of which is equipped with a first main fuel inlet and a first auxiliary fuel inlet; second fuel nozzles, each of the second fuel nozzles being provided with a second main fuel inlet and a second auxiliary fuel inlet; a main fuel pipeline, connected to the first main fuel inlet of each of the first fuel nozzles; an auxiliary fuel pipeline, communicating the first auxiliary fuel inlet of each of the first fuel nozzles and the second auxiliary fuel inlet of each of the second fuel nozzles; as well as a fuel enrichment pipeline connected to the second main fuel inlet of each of the second fuel nozzles; in, The flow distance from the inlet of the main fuel pipeline to each of the first main fuel inlets is the same; The flow distance from the inlet of the auxiliary fuel pipeline to each of the first auxiliary fuel inlets is the same, the flow distance from the inlet of the auxiliary fuel pipeline to each of the second auxiliary fuel inlets is the same, and the flow distance from the inlet of the auxiliary fuel pipeline to each of the first auxiliary fuel inlets is the same as the flow distance from the inlet of the auxiliary fuel pipeline to each of the second auxiliary fuel inlets.

2. The combustion chamber fuel supply system according to claim 1, characterized in that: The main fuel pipeline includes a main fuel primary pipeline and a main fuel secondary pipeline, each of the main fuel primary pipelines is connected to two of the main fuel secondary pipelines, and the fuel flows to the first main fuel inlet through the inlet of the main fuel pipeline, the main fuel primary pipeline, and the main fuel secondary pipeline.

3. The combustion chamber fuel supply system according to claim 1, characterized in that: The auxiliary fuel pipeline includes an auxiliary fuel primary pipeline and an auxiliary fuel secondary pipeline, each of the auxiliary fuel primary pipelines is connected to two auxiliary fuel secondary pipelines, and the fuel flows to the first auxiliary fuel inlet and the second auxiliary fuel inlet through the inlet of the auxiliary fuel pipeline, the auxiliary fuel primary pipeline, and the auxiliary fuel secondary pipeline.

4. The combustion chamber fuel supply system according to claim 2, characterized in that: Each of the inlets of the main fuel pipeline is connected to two of the main fuel primary pipelines.

5. The combustion chamber fuel supply system according to claim 3, characterized in that: Each of the inlets of the auxiliary fuel pipeline is connected to two of the auxiliary fuel primary pipelines.

6. The combustion chamber fuel supply system according to claim 2, characterized in that: The main fuel pipeline also includes a main fuel tertiary pipeline, each outlet of each main fuel secondary pipeline is connected to two main fuel tertiary pipelines, and the fuel flows to the first main fuel inlet through the inlet of the main fuel pipeline, the main fuel primary pipeline, the main fuel secondary pipeline, and the main fuel tertiary pipeline.

7. The combustion chamber fuel supply system according to claim 3, characterized in that: The auxiliary fuel pipeline also includes an auxiliary fuel tertiary pipeline, each outlet of each auxiliary fuel secondary pipeline is connected to two auxiliary fuel tertiary pipelines, and the fuel flows to the first auxiliary fuel inlet and the second auxiliary fuel inlet through the inlet of the auxiliary fuel pipeline, the auxiliary fuel primary pipeline, the auxiliary fuel secondary pipeline, and the auxiliary fuel tertiary pipeline.

8. The combustion chamber fuel supply system according to claim 4, characterized in that: The main fuel pipeline is provided with an inlet.

9. The combustion chamber fuel supply system according to claim 5, characterized in that: The secondary fuel line is provided with an inlet.

10. The combustion chamber fuel supply system according to claim 1, characterized in that: The fuel enrichment pipeline includes an inlet and two primary fuel enrichment pipelines. The inlet of the fuel enrichment pipeline is connected to the two primary fuel enrichment pipelines. The fuel flows to the second main oil inlet through the inlet of the fuel enrichment pipeline and the primary fuel enrichment pipeline.

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