Double-injection fuel pump assembly

Abstract

The utility model provides a double-injection fuel pump assembly, which comprises an oil storage barrel and an auxiliary oil tank, and is characterized in that an electric fuel pump is arranged in the oil storage barrel, the upper end of the electric fuel pump is connected with a four-way connector, one side of the four-way connector is connected with an oil supply pipe for conveying oil to an engine, and the other side of the four-way connector is connected with an oil pump. The other side of the four-way connector is connected with a siphon and connected with the oil storage barrel, and the four-way connector is further connected with an auxiliary oil pipe to the interior of the auxiliary oil tank. By arranging the four-way connector, one path is connected with the oil storage barrel for injection to form a siphon effect, and the other path is connected with the auxiliary oil tank for injection to form a siphon effect, so that fuel oil in the auxiliary oil tank can be better sucked.

Description

Technical Field

[0001] This utility model relates to a dual ejector fuel pump assembly. Background Technology

[0002] Currently, fuel pumps on the market are generally connected to the fuel line of the bracket through a single fuel outlet, resulting in a complex bracket assembly structure and large size, which cannot meet some special requirements.

[0003] Meanwhile, the unusual shape of some fuel tanks leads to insufficient fuel intake. Therefore, it is necessary to improve this structure to overcome the aforementioned defects. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a dual-ejector fuel pump assembly. By setting a four-way connector, one end is connected to the fuel tank to inject fuel and create a siphon effect, and the other end is connected to the auxiliary fuel tank to inject fuel and create a siphon effect, which can better draw fuel from the auxiliary fuel tank.

[0005] The objective of this utility model can be achieved through the following technical solution: a dual-ejector fuel pump assembly, comprising a fuel tank and an auxiliary fuel tank, characterized in that: an electric fuel pump is installed inside the fuel tank, a four-way connector is connected to the upper end of the electric fuel pump, one side of the four-way connector is connected to a fuel supply pipe for supplying fuel to the engine, the other side of the four-way connector is connected to a siphon pipe and connected to the fuel tank, and the four-way connector is also connected to an auxiliary fuel pipe to the auxiliary fuel tank.

[0006] Furthermore, a first oil level sensor is installed on the oil storage tank.

[0007] Furthermore, the auxiliary oil tank includes an oil level bracket and a mounting bracket. A second oil level sensor is mounted on the oil level bracket, and the auxiliary oil pipe is fixed to the oil level bracket by a snap-fit ​​connection.

[0008] Furthermore, the mounting bracket is equipped with a spring in the middle that allows it to slide up and down.

[0009] Furthermore, the lower end of the oil storage tank has a siphon port, and the siphon pipe is connected to the siphon port.

[0010] Furthermore, the oil storage tank has a bracket, and the electric fuel pump is mounted on the bracket.

[0011] Furthermore, a connecting tube is provided between the handle and the bracket for insertion and fixation.

[0012] Furthermore, a pressure relief valve is connected to the oil supply pipe.

[0013] Furthermore, the lower side of the oil storage tank has a filter screen.

[0014] Compared with the prior art, the advantages of this application are: by setting a four-way connector, one way is connected to the oil storage tank to form a siphon effect, and the other way is connected to the auxiliary oil tank to form a siphon effect, which can better draw fuel from the auxiliary oil tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fuel pump assembly;

[0016] Figure 2 This is a schematic diagram of the fuel pump assembly from another perspective;

[0017] In the diagram, 1. Oil reservoir; 11. Siphon inlet; 12. Filter screen; 13. Bracket; 14. Four-way connector; 15. Handle; 16. Connecting pipe; 17. First oil level sensor; 2. Electric fuel pump; 21. Siphon pipe; 3. Fuel supply pipe; 31. Pressure relief valve; 4. Auxiliary fuel pipe; 5. Second oil level sensor; 6. Oil level bracket; 61. Clip; 7. Mounting bracket; 71. Spring. Detailed Implementation

[0018] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0019] like Figure 1-2 As shown, a dual-ejector fuel pump assembly includes a fuel reservoir 1 and an auxiliary fuel tank. The fuel reservoir 1 contains an electric fuel pump 2. The upper end of the electric fuel pump 2 is connected to a four-way connector 14. One side of the four-way connector 14 is connected to a fuel supply pipe 3 for supplying fuel to the engine. The other side of the four-way connector 14 is connected to a siphon pipe 21 and is connected to the fuel reservoir 1. The four-way connector 14 is also connected to an auxiliary fuel pipe 4 leading to the auxiliary fuel tank.

[0020] Furthermore, a first oil level sensor 17 is installed on the oil storage tank 1 to detect the oil level in the main oil tank.

[0021] Furthermore, the auxiliary oil tank includes an oil level bracket 6 and a mounting bracket 7. A second oil level sensor 5 is mounted on the oil level bracket 6, and the auxiliary oil pipe 4 is connected and fixed to the oil level bracket 6 by a snap fastener 61.

[0022] Furthermore, the mounting bracket 7 is provided with a spring 71 in the middle, which allows it to slide up and down. The mounting bracket 7 can slide up and down by means of the spring 71, which facilitates its installation in the auxiliary oil tank.

[0023] Furthermore, the lower end of the oil storage tank 1 has a siphon port 11, and the siphon pipe 21 is connected to the siphon port 11. This is a single injection point, which uses the siphon effect to fill the oil storage tank 1 with oil.

[0024] Furthermore, the oil storage tank 1 has a bracket 13, and the electric fuel pump 2 is mounted on the bracket 13.

[0025] Furthermore, a connecting tube 16 is provided between the handle 15 and the bracket 13 for insertion and fixation. The handle 15 is fixed by the connecting tube 16, which also facilitates the installation of the assembly into the fuel tank.

[0026] Furthermore, a pressure relief valve 31 is connected to the oil supply pipe 3 to regulate the oil pressure in the oil circuit.

[0027] Furthermore, the lower side of the oil storage tank 1 has a filter screen 12. The filter screen 12 is used to filter the fuel.

[0028] This utility model provides a four-way connector 14 at the outlet of the electric fuel pump 2, allowing one path to be connected to the siphon port 11 of the fuel tank 1 via the siphon pipe 21 for injection; another path to be connected to the auxiliary fuel tank via the auxiliary fuel pipe 4 for injection; and a third path to deliver fuel to the engine via the fuel supply pipe 3. At the same time, the auxiliary fuel pipe 4 is connected and fixed to the fuel level bracket 6 via a buckle 61.

[0029] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0030] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A dual-ejector fuel pump assembly, comprising a fuel reservoir and an auxiliary fuel tank, characterized in that: The oil storage bucket is provided with an electric fuel pump, the upper end of the electric fuel pump is connected with a four-way joint, one side of the four-way joint is connected with an oil supply pipe for conveying to the engine, the other side of the four-way joint is connected with a siphon pipe and connected with the oil storage bucket, and the four-way joint is also connected with a sub-oil pipe to the sub-oil tank.

2. A dual-impeller fuel pump assembly as claimed in claim 1, wherein: A first oil level sensor is installed on the oil storage bucket.

3. A dual-impeller fuel pump assembly as defined in claim 1, wherein: The sub-oil tank comprises an oil level support and a mounting support, a second oil level sensor is installed on the oil level support, and the sub-oil pipe and the oil level support are fixed through buckle connection.

4. A dual-impeller fuel pump assembly as claimed in claim 3, wherein: A spring is arranged in the middle of the mounting support and can slide up and down.

5. A dual-impeller fuel pump assembly as defined in claim 1, wherein, The lower end of the oil storage bucket is provided with a siphon inlet, and the siphon pipe is connected with the siphon inlet.

6. A dual-impeller fuel pump assembly as claimed in claim 1, wherein, The oil storage bucket is provided with a support, and the electric fuel pump is installed on the support.

7. A dual-impeller fuel pump assembly as claimed in claim 1, wherein, A pressure relief valve is connected to the oil supply pipe.

8. A dual-impeller fuel pump assembly as claimed in claim 6, wherein, The lower end side of the oil storage bucket is provided with a filter screen.

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