Ultra-light aircraft fuel emission inspection device

Abstract

According to the fuel oil emission inspection device for the ultra-light aircraft, the ultra-light aircraft is provided with an oil tank, wings, a cabin and an engine cabin, the oil tank is arranged in the wings, and a fireproof partition plate is arranged between the cabin and the engine cabin; the fuel oil discharge inspection device is installed on a fireproof partition plate and comprises a three-way pipe with an oil inlet, a first oil outlet and a second oil outlet, the oil inlet is connected with an oil tank through a hose, the first oil outlet is connected with an engine in an engine compartment through a fuel oil pipe, and the second oil outlet is connected with an oil discharge pipe and an oil discharge valve. And the oil discharge pipe and the oil discharge valve are arranged downwards and are used for discharging fuel oil for reserved sample inspection. The fuel oil discharge inspection device is installed on the fireproof partition plate between the cabin and the engine cabin, the oil discharge valve is downwards exposed out of the bottom of the machine body, during fuel oil discharge inspection, a worker does not need to climb to disassemble a plurality of components and only needs to open the oil discharge valve, and the fuel oil discharge inspection device is convenient to operate and very safe.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-light aircraft, in particular to an ultra-light aircraft fuel discharge inspection device. Background Art

[0002] Before an aircraft takes off, it is necessary to take a sample of the fuel for inspection. There are two purposes for taking the fuel sample. One is to check the water content of the fuel, and the other is to check whether there are microorganisms in the fuel. The fuel contains water because when the aircraft is flying at low altitude, the water vapor in the air enters the fuel tank and condenses into water, which deposits in the fuel tank. Water is immiscible with oil, and fuel with a large water content will affect the normal operation of the engine. Similarly, microorganisms will also enter the fuel tank, and the microorganisms will decompose the fuel, resulting in a decrease in the fuel quality and affecting the power of the engine.

[0003] For most aircraft, the fuel tank is set inside the wing, and the fuel discharge inspection device is set on the fuel tank. When taking the sample for inspection, it is necessary to climb up and down to disassemble multiple components, which is not only cumbersome to operate but also very unsafe. Summary of the Utility Model

[0004] In order to overcome the deficiencies in the background art, the utility model discloses an ultra-light aircraft fuel discharge inspection device, and its purpose is to set the fuel discharge inspection device on the fireproof partition board to facilitate the fuel discharge and the operation of taking the fuel sample for inspection.

[0005] Specifically, the utility model adopts the following technical solutions:

[0006] An ultra-light aircraft fuel discharge inspection device, the ultra-light aircraft has a fuel tank, a wing, a cockpit and an engine compartment. Among them, the fuel tank is set inside the wing, and a fireproof partition board is arranged between the cockpit and the engine compartment; the fuel discharge inspection device is installed on the fireproof partition board, and it includes a three-way pipe with an oil inlet, a first oil outlet and a second oil outlet. The oil inlet is connected to the fuel tank through a hose, the first oil outlet is connected to the engine in the engine compartment through a fuel pipe, the second oil outlet is connected with a drain pipe and a drain valve, and the drain pipe and the drain valve are arranged downward for discharging fuel for taking the sample for inspection.

[0007] Further improving the technical solution, the fuel discharge inspection device is installed on one side of the fireproof partition board facing the engine compartment.

[0008] Further improving the technical solution, there are two fuel tanks, which are respectively set inside a pair of wings, and the two fuel tanks are connected to the oil inlet through a hose and a three-way joint.

[0009] Further improving the technical solution, a pipe joint for connecting the fuel pipe is provided at the first oil outlet.

[0010] Further improve the technical solution. A fixing bracket is provided on the fireproof partition board, and the fixing bracket is used to fix the lower end of the oil drain pipe.

[0011] Further improve the technical solution. Connecting pipe fittings for fixing the oil inlet are provided on the fireproof partition board.

[0012] Further improve the technical solution. The hose is a transparent plastic pipe.

[0013] After implementing the above technical solution, compared with the background technology, the beneficial effects of the present utility model are as follows:

[0014] This fuel discharge inspection device is installed on the fireproof partition board between the cockpit and the engine compartment, and the oil drain valve exposes downward at the bottom of the fuselage. During fuel discharge inspection, the staff does not need to climb high to disassemble multiple components, and only needs to open the oil drain valve to conduct fuel discharge inspection, which is not only convenient to operate but also very safe. Description of the Drawings

[0015] Attached Figure 1 Shows a schematic structural view of this fuel discharge inspection device from one perspective.

[0016] Attached Figure 2 Shows the Figure 1 Partial enlarged schematic structural view of the attached

[0017] Attached Figure 3 Shows a schematic structural view of this fuel discharge inspection device from another perspective.

[0018] In the drawings: 1, cockpit; 2, fireproof partition board; 3, fuel discharge inspection device; 3.1, tee; 3.2, oil drain pipe; 3.3, oil drain valve; 3.4, hose; 3.5, connecting pipe fittings; 3.6, pipe joint; 3.7, fixing bracket; 3.8, tee joint. Detailed Embodiment

[0019] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present utility model and are not intended to limit the protection scope of the present utility model. It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. It should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Refer to the attached Figure 1 A super-light aircraft has a fuel tank, wings, a cockpit 1, and an engine compartment. Among them, the wings (not shown in the figure) are connected to both sides of the cockpit 1, a pair of fuel tanks (not shown in the figure) are respectively arranged in the left and right wings, an engine compartment (not shown in the figure) is provided at the front end of the cockpit 1, and a fireproof partition 2 is arranged between the cockpit 1 and the engine compartment. In order to solve the problems in the background technology, a fuel discharge inspection device 3 is installed on the fireproof partition 2. Its structure and function will be specifically described below.

[0021] Refer to the attached Figure 2 The attached Figure 2 shows a partially enlarged structural schematic diagram of the attached Figure 1 From the attached Figure 2 it can be seen that the fuel discharge inspection device 3 is installed on the side of the fireproof partition 2 facing the engine compartment, and it includes a three-way pipe 3.1, a drain pipe 3.2, and a drain valve 3.3. Among them, the three-way pipe 3.1 has a horizontally arranged oil inlet, a first oil outlet, and a downwardly arranged second oil outlet. The oil inlet of the three-way pipe 3.1 is fixed on the fireproof partition 2 through a threaded connecting fitting 3.5. A pipe joint 3.6 is provided at the first oil outlet, and the pipe joint 3.6 is used to connect the fuel pipe to supply fuel to the engine in the engine compartment. The second oil outlet is connected to the drain pipe 3.2 and the drain valve 3.3. The drain pipe 3.2 and the drain valve 3.3 are arranged downward, and the drain valve 3.3 extends downward to expose the bottom of the fuselage.

[0022] Refer to the attached Figure 3 The attached Figure 3Shown is a schematic structural view of the fuel emission inspection device from another perspective. Attached Figure 3 As can be seen, on the side of the fireproof partition 2 facing the engine compartment, there are two hoses 3.4. One ends of the two hoses 3.4 are respectively connected to the left and right fuel tanks, and the other ends are connected to the fuel inlet through a tee joint 3.8. In this way, the fuel in the two fuel tanks can enter the engine and the drain pipe 3.2 through the tee pipe 3.1.

[0023] Since the fuel emission inspection device 3 is installed on the fireproof partition 2 and the drain valve 3.3 exposes downward at the bottom of the fuselage, during fuel emission inspection, the staff does not need to climb high to disassemble components such as the wing and fuel tank. They only need to open the drain valve 3.3 to conduct the fuel emission inspection, which is not only convenient to operate but also very safe.

[0024] Furthermore, in an improved technical solution, the hose 3.4 is made of a transparent plastic pipe. The beneficial effect is that the driver in the cockpit 1 can judge whether there is fuel supply to the engine by observing the hose 3.4.

[0025] Furthermore, in an improved technical solution, a fixed bracket 3.7 is provided on the fireproof partition 2, and the fixed bracket 3.7 is used to fix the lower end of the drain pipe 3.2. The beneficial effect is that the drain pipe 3.2 is relatively long and will vibrate during flight. Setting the fixed bracket 3.7 can prevent the drain pipe 3.2 from vibrating.

[0026] The parts not described in detail are the prior art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-light aircraft fuel emission inspection device, the ultra-light aircraft having a fuel tank, wings, a cockpit and an engine compartment, wherein, The fuel tank is arranged inside the wing, and a fireproof partition is arranged between the cockpit and the engine compartment. The characteristics are as follows: The fuel discharge inspection device is installed on the fireproof partition, and it includes a three-way pipe with an oil inlet, a first oil outlet, and a second oil outlet. The oil inlet is connected to the fuel tank through a hose, the first oil outlet is connected to the engine in the engine compartment through a fuel pipe, the second oil outlet is connected with a drain pipe and a drain valve, and the drain pipe and the drain valve are arranged downward for discharging fuel for sample inspection.

2. The fuel emission inspection device for an ultra-light aircraft according to claim 1, characterized in that: The fuel discharge inspection device is installed on the side of the fireproof partition facing the engine compartment.

3. The fuel emission inspection device for an ultra-light aircraft according to claim 1, characterized in that: There are two fuel tanks, which are respectively arranged inside a pair of wings, and the two fuel tanks are connected to the oil inlet through hoses and three-way connectors.

4. The ultra-light aircraft fuel emission inspection device according to claim 1, characterized in that: A pipe joint for connecting the fuel pipe is provided at the first oil outlet.

5. The fuel emission inspection device for an ultra-light aircraft as described in claim 1, characterized in that: A fixed bracket is arranged on the fireproof partition, and the fixed bracket is used to fix the lower end of the drain pipe.

6. The ultra-light aircraft fuel emission inspection device according to claim 1, characterized in that: Connecting pipe fittings for fixing the oil inlet are arranged on the fireproof partition.

7. The fuel emission inspection device for an ultra-light aircraft as described in claim 1, wherein: The hose is a transparent plastic pipe.

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