Engine lubricating pipeline

Abstract

According to the engine lubricating pipeline, an existing lubricating system is changed into a first capillary tube and a second capillary tube, the pipe diameter of the first capillary tube and the pipe diameter of the second capillary tube are far smaller than that of an oil supply pipe, and one end of the first capillary tube and one end of the second capillary tube are connected side by side and extend into an impeller connecting bearing to provide lubricating oil. The oil inlet end of one oil supply pipe in the fuel supply system is communicated with the other end of the first capillary tube, during use, the second capillary tube is used for feeding pure lubricating oil and conveying the pure lubricating oil to a bearing, the first capillary tube distributes pure combustion oil in the oil supply pipes to the bearing, and the lubricating oil and the combustion oil are mixed at the moment; the combustion oil enables the lubricating oil to be less viscous, and the lubricating oil can be quickly immersed into the bearing for lubrication, so that the lubricating oil can be rushed into the bearing needing to be lubricated without causing waste.

Description

Technical Field

[0001] The present application belongs to the technical field of micro-turbine engines, and in particular, relates to an engine lubrication pipeline. Background Art

[0002] Micro turbojet is a miniaturized jet engine, mainly used in short-distance flights, helicopters, drones, etc. Its product structure mainly includes turbine, combustion chamber, nozzle and air inlet.

[0003] In the use of micro-turbojet engines, the lubrication system needs to lubricate the corresponding transmission parts and bearings to reduce friction resistance and extend the service life of the machine. The existing lubrication device for micro-turbojet engines supplies the mixed oil of lubricating oil and fuel to the lubrication mechanism and the combustion system through the pipeline for supplying fuel, which will cause part of the lubricating oil to enter the combustion system. The lubricating oil does not participate in the combustion after entering the combustion system, which will cause a waste of lubricating oil. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the problem of waste of lubricating oil supply in the prior art, thereby providing an engine lubrication pipeline,

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An engine lubrication pipeline, comprising a micro-turbine engine consisting of a rotor system, a casing, a flame tube, a diffuser, a turbine guide, a fuel supply system, a lubrication system, and a starting gas path, wherein the existing lubrication system is modified and replaced with a first capillary tube and a second capillary tube, wherein the diameters of the first capillary tube and the second capillary tube are much smaller than those of an oil supply pipe, wherein one end of the first capillary tube and the second capillary tube are connected side by side and extend into an impeller connecting bearing to provide lubricating oil, wherein an oil inlet end of one of the oil supply pipes in the fuel supply system is connected to the other end of the first capillary tube, and the second capillary tube is connected to the impeller connecting bearing to provide lubricating oil. The other end extends out of the diffuser front cover, and the diffuser front cover is provided with an inlet and outlet for accommodating a second capillary. When in use, the second capillary is used to connect pure lubricating oil to the bearing. The first capillary diverts the pure combustion oil in the oil supply pipe to the bearing. At this time, the lubricating oil and the combustion oil meet and mix. The combustion oil makes the lubricating oil less viscous and can quickly penetrate into the bearing for lubrication. In this way, the lubricating oil can rush into the bearing that needs lubrication without causing waste. The first capillary and the second capillary are located in the diffuser, making full use of the space and having a reasonable layout.

[0007] The lubrication system comprises a first capillary tube and a second capillary tube, one end of the first capillary tube is connected with the second capillary tube, an oil inlet end of one of the oil supply pipes in the fuel supply system is connected with the other end of the first capillary tube, one end of the second capillary tube extends into the impeller connecting bearing to provide lubricating oil, and the other end of the second capillary tube extends out of the diffuser front cover, and the diffuser front cover is provided with an inlet and outlet for accommodating the second capillary tube; the first capillary tube and the second capillary tube are Y-shaped, which is another structure for realizing the junction; the first capillary tube and the second capillary tube are located in the diffuser, making full use of the space and having a reasonable layout.

[0008] The beneficial effects of the utility model are:

[0009] The product structure of the utility model is simple. It only needs to install the first capillary and the second capillary on the original structure. The lubricating oil is input into the second capillary, and then the combustion oil is input into the first capillary for dilution, so that it can be fully immersed in the bearing for lubrication. At the same time, it is ensured that the lubricating oil enters the lubricating place, and the lubricating oil will not enter the combustion chamber to cause waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0012] Figure 2 It is a structural schematic diagram of Embodiment 1 of the present application;

[0013] Figure 3 It is a schematic diagram of the structure of the first capillary and the second capillary in Example 1 of the present application;

[0014] Figure 4 It is a structural diagram of Embodiment 2 of the present application;

[0015] The reference numerals in the figure are:

[0016] 1. Diffuser, 2. Lubrication system, 3. First capillary, 4. Second capillary, 5. Bearing, 6. Oil supply pipe, 7. Diffuser front cover, 8. Inlet and outlet. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0020] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] Example

[0022] Embodiment 1

[0023] The present embodiment provides an engine lubrication pipeline, including a micro-turbine engine consisting of a rotor system, a casing, a flame tube, a diffuser 1, a turbine guide, a fuel supply system, a lubrication system 2, and a starting gas circuit. The existing lubrication system is modified and replaced with a first capillary tube 3 and a second capillary tube 4. The diameters of the first capillary tube 3 and the second capillary tube 4 are much smaller than the oil supply pipe 6. One end of the first capillary tube 3 and the second capillary tube 4 are connected side by side and extend into the impeller connection bearing 5 to provide lubricating oil. The oil inlet end of one of the oil supply pipes 6 in the fuel supply system is connected to the other end of the first capillary tube 3. The other end of the second capillary 4 extends out of the diffuser front cover 7. The diffuser front cover 7 is provided with an inlet and outlet 8 for accommodating the second capillary 4. When in use, the second capillary 4 is used to connect pure lubricating oil to the bearing. The first capillary 3 diverts the pure combustion oil in the oil supply pipe 6 to the bearing. At this time, the lubricating oil and the combustion oil meet and mix. The combustion oil makes the lubricating oil less viscous and can quickly penetrate into the bearing for lubrication. In this way, the lubricating oil can rush into the bearing that needs lubrication without causing waste. The first capillary 3 and the second capillary 4 are located in the diffuser 1, making full use of the space and having a reasonable layout.

[0024] Embodiment 2

[0025] An engine lubrication pipeline, including a micro-turbine engine consisting of a rotor system, a casing, a flame tube, a diffuser 1, a turbine guide, a fuel supply system, a lubrication system 2, and a starting gas circuit, wherein the existing lubrication system is modified, wherein the lubrication system 2 includes a first capillary tube 3 and a second capillary tube 4, wherein one end of the first capillary tube 3 is connected to the second capillary tube 4, an oil inlet end of one of the oil supply pipes 6 in the fuel supply system is connected to the other end of the first capillary tube 3, one end of the second capillary tube 4 extends into an impeller connecting bearing 5 to provide lubricating oil, and the other end of the second capillary tube 4 extends out of a diffuser front cover 7 The diffuser front cover 7 is provided with an inlet and outlet 8 for accommodating the second capillary 4; the first capillary 3 and the second capillary 4 are Y-shaped; when in use, the second capillary 4 is used to connect pure lubricating oil to the bearing, and the first capillary 3 diverts the pure combustion oil in the oil supply pipe 6 into the second capillary 4, and then mixes with the lubricating oil in the second capillary 4 and finally discharges it to the bearing. At this time, the lubricating oil is mixed with the combustion oil, and the combustion oil makes the lubricating oil less viscous and can quickly penetrate into the bearing for lubrication, so that the lubricating oil can enter the bearing that needs lubrication without entering the combustion chamber to cause waste.

[0026] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An engine lubrication pipeline, comprising a micro-turbine engine consisting of a rotor system, a casing, a flame tube, a diffuser, a turbine guide, a fuel supply system, a lubrication system, and a starting gas circuit, characterized in that: The lubrication system includes a first capillary tube and a second capillary tube, one end of the first capillary tube and the second capillary tube are connected side by side and extend into the impeller connection bearing to provide lubricating oil, an oil inlet end of one of the oil supply pipes in the fuel supply system is connected to the other end of the first capillary tube, and the other end of the second capillary tube extends out of the diffuser front cover, and the diffuser front cover is provided with an inlet and outlet for accommodating the second capillary tube.

2. An engine lubrication pipeline according to claim 1, characterized in that: The lubrication system includes a first capillary tube and a second capillary tube, one end of the first capillary tube is connected to the second capillary tube, an oil inlet end of one of the oil supply pipes in the fuel supply system is connected to the other end of the first capillary tube, one end of the second capillary tube extends into the impeller connecting bearing to provide lubricating oil, and the other end of the second capillary tube extends out of the diffuser front cover, and the diffuser front cover is provided with an inlet and outlet for accommodating the second capillary tube.

3. An engine lubrication pipeline according to any one of claims 1-2, characterized in that: The first capillary tube and the second capillary tube are located in the diffuser.

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