A funnel for adding oil to a LEAP engine

Abstract

This utility model discloses a special funnel for adding lubricating oil to a LEAP engine, comprising an integrally formed oil inlet, a guide section, a sealing section, an oil passage section, and a ejector pin arranged sequentially. The oil inlet faces upward; the sealing section, oil passage section, and ejector pin are coaxially arranged, and the integral part of the sealing section, oil passage section, and ejector pin is inclined at 40 degrees to the oil inlet; one end of the guide section is connected to the oil inlet, and the other end is connected to the sealing section; the sealing section is provided with a step adapted to the oil tank opening; the oil passage section includes an integrally connected cylindrical section and a conical section, both of which have a plurality of oil passage holes evenly distributed circumferentially; the ejector pin is axially fixedly connected to the conical section of the oil passage section. The ejector pin is used to pass through the oil hole on the oil filter at the upper end of the oil tank opening and push open the valve at the lower end of the oil tank opening. Since the valve is opened by external force, the oil filling speed can be significantly improved, solving the problem of slow oil inflow and easy overflow.

Description

Technical Field

[0001] This utility model relates to the field of aircraft ground maintenance technology, and in particular to a special funnel for adding lubricating oil to a LEAP engine. Background Technology

[0002] The LEAP engine is a new generation of civil aviation engine developed by CFM International, and it is compatible with the Airbus A320neo, Boeing 737 MAX and COMAC C919 models.

[0003] In actual operation, when adding lubricating oil to the LEAP engine oil tank, it was found that the design of the LEAP engine oil tank differs somewhat from that of other manufacturers. The main differences are: the oil filter is located at the top of the tank opening, with several evenly spaced oil passages, while the valve is located at the bottom. The lubricating oil poured from the tank first passes through the oil filter, then through the valve. The oil's own weight forces it through the valve into the tank. Because the valve in the LEAP engine oil tank is relatively tight, a small amount of lubricating oil is difficult to open the valve by its own weight, directly leading to the following problems:

[0004] 1) The lubricating oil flow rate is very slow, resulting in low efficiency;

[0005] 2) Due to the slow speed, it is particularly easy to overflow when adding lubricating oil, causing the unit to mistakenly believe that there is an abnormal situation of lubricating oil leakage in the engine. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a special funnel for adding lubricating oil to LEAP engines, thereby overcoming the deficiencies in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A special funnel for adding lubricating oil to a LEAP engine includes an oil inlet, a guide section, a sealing section, an oil passage section, and a ejector pin, which are integrally formed and arranged sequentially.

[0009] The oil inlet is positioned with its opening facing upwards;

[0010] The sealing part, the oil passage part, and the ejector pin are coaxially arranged, and the integral part of the sealing part, the oil passage part, and the ejector pin is inclined at 40 degrees to the oil inlet; one end of the guide part is connected to the oil inlet, and the other end is connected to the sealing part.

[0011] Furthermore, the oil passage section includes an integrally connected cylindrical section and a conical section, and a plurality of oil passage holes are evenly distributed circumferentially on both the cylindrical section and the conical section.

[0012] Furthermore, the ejector pin is axially fixedly connected to the conical section of the oil passage.

[0013] Preferably, the ejector pin is solid.

[0014] Preferably, the sealing part is provided with a step that matches the opening of the oil tank.

[0015] Preferably, this special funnel is integrally molded and made of polyamide material.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1) The LEAP engine lubricating oil addition funnel of this case includes an oil inlet, a guide section, a sealing section, an oil passage section and a ejector pin, which are integrally formed and arranged in sequence; the sealing section, the oil passage section and the ejector pin are coaxially arranged, and the integral part of the sealing section, the oil passage section and the ejector pin is inclined at 40 degrees to the oil inlet; the ejector pin passes through the oil hole on the oil filter at the upper end of the oil tank opening and pushes open the valve at the lower end of the oil tank opening. Since the valve is opened by external force, the lubricating oil addition speed can be significantly improved, solving the problem of slow lubricating oil inflow speed and easy overflow.

[0018] 2) The LEAP engine oil-adding funnel in this case has high oil inlet efficiency. Without the funnel, the entire process of adding oil takes 2 minutes and 30 seconds, while with the funnel, the entire process takes 30 seconds and there is no oil overflow, which greatly saves working time and improves work efficiency.

[0019] 3) The LEAP engine lubricating oil funnel in this case was designed and modeled to complete the design of the lubricating oil funnel for the LEAP engine, and the tool was made by combining it with 3D printing equipment.

[0020] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional rendering of the present invention.

[0023] Attached image labels:

[0024] 1-Oil inlet, 2-Guide section, 3-Sealing section, 4-Oil passage section, 5-Ejector pin; 41-Cylindrical section, 42-Conical section. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Please also refer to Figure 1-2 This utility model provides a special funnel for adding lubricating oil to a LEAP engine, including an oil inlet (1), a guide part (2), a sealing part (3), an oil passage part (4), and a ejector pin (5) that are integrally formed and arranged in sequence;

[0029] The oil inlet (1) is set with its opening facing upwards;

[0030] The sealing part (3), the oil passage part (4) and the ejector pin (5) are coaxially arranged, and the integral part of the sealing part (3), the oil passage part (4) and the ejector pin (5) is inclined at 40 degrees to the oil inlet (1);

[0031] One end of the guide section (2) is connected to the oil inlet (1), and the other end is connected to the sealing section (3);

[0032] The sealing part (3) is provided with a step that is adapted to the fuel tank opening, so that the special funnel of this case can be inserted and matched to seal the fuel tank opening of the LEAP engine.

[0033] The oil passage section (4) includes an integrally connected cylindrical section (41) and a conical section (42), and a plurality of oil passage holes are evenly distributed circumferentially on both the cylindrical section (41) and the conical section (42).

[0034] The ejector pin (5) is axially fixed to the conical section (42) of the oil passage (4). The ejector pin (5) is solid. The ejector pin (5) is used to pass through the oil hole on the oil filter at the upper end of the oil tank opening and push open the valve at the lower end of the oil tank opening. Since the valve is pushed open by external force, the oil filling speed can be significantly improved, solving the problem of slow oil inflow and easy overflow.

[0035] Preferably, the dedicated funnel in this embodiment is integrally molded and made of polyamide material (PAHT CF), which has the characteristics of high strength and high temperature resistance.

[0036] The working principle or usage procedure of the LEAP engine oil-adding funnel described in this case is as follows:

[0037] 1) Insert the special funnel into the oil tank opening of the LEAP engine and make the ejector pin (5) pass through the oil hole on the oil filter at the upper end of the oil tank opening and open the valve at the lower end of the oil tank opening.

[0038] 2) Pour the lubricating oil from the oil tank into this funnel, and use the funnel to guide the oil to the oil tank. The refueling speed is fast and efficient.

[0039] Compared to existing technologies, the LEAP engine oil-adding funnel in this case uses a pin to pass through the oil filter hole at the top of the oil tank opening and push open the valve at the bottom of the oil tank opening. Since the valve is opened by external force, the oil-adding speed can be significantly improved, solving the problem of slow oil flow and easy overflow.

[0040] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A special funnel for adding lubricating oil to a LEAP engine, characterized in that: It includes an oil inlet (1), a guide section (2), a sealing section (3), an oil passage section (4), and an ejector pin (5) that are integrally formed and arranged in sequence. The oil inlet (1) is positioned with its opening facing upwards; The sealing part (3), the oil passage part (4) and the ejector pin (5) are coaxially arranged, and the integral part of the sealing part (3), the oil passage part (4) and the ejector pin (5) is inclined at 40 degrees to the oil inlet (1); one end of the guide part (2) is connected to the oil inlet (1) and the other end is connected to the sealing part (3).

2. The LEAP engine oil-adding funnel according to claim 1, characterized in that: The oil passage section (4) includes an integrally connected cylindrical section (41) and a conical section (42), and a plurality of oil passage holes are evenly distributed circumferentially on both the cylindrical section (41) and the conical section (42).

3. The LEAP engine oil-adding funnel according to claim 2, characterized in that: The ejector pin (5) is axially fixedly connected to the conical section (42) of the oil passage (4).

4. A special funnel for adding lubricating oil to a LEAP engine according to claim 3, characterized in that: The ejector pin (5) is solid.

5. A special funnel for adding lubricating oil to a LEAP engine according to claim 3, characterized in that: The sealing part (3) is provided with a step that matches the opening of the oil tank.

6. A special funnel for adding lubricating oil to a LEAP engine according to claim 3, characterized in that: It is molded in one piece and made of polyamide material.

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