Oil storage barrel with injection pump

Abstract

An oil storage barrel with an injection pump comprises an oil storage barrel body and the injection pump, an oil cavity is formed in the oil storage barrel body, the oil storage barrel body is provided with an inner bottom face located in the oil cavity, the injection pump is arranged in the oil cavity and fixedly connected with the inner bottom face of the oil storage barrel body, and the inner bottom face is detachably connected with the injection pump. The injection pump is directly arranged on the inner bottom face of the oil storage barrel, and compared with the prior art that an injection pump is arranged in an oil tank, the design can effectively reduce the resistance of oil in the conveying process, and the conveying efficiency of the oil is improved. Besides, due to the detachable connection design of the injection pump and the inner bottom face of the oil storage barrel, when the injection pump breaks down or needs to be maintained, the injection pump can be conveniently and rapidly detached and replaced, the maintenance efficiency of equipment is greatly improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumps, in particular to an oil storage barrel with a jet pump. Background Art

[0002] In the existing technology, when the fuel flows out of the pump core, part of it flows to the engine to supply fuel to the engine, and part of it flows to the jet pump and is ejected through the small holes on the jet pump, converting the pressure energy into kinetic energy, generating high-speed flowing liquid, driving the surrounding liquid to flow forward, and generating negative pressure around the injection port of the jet pump, forming an air suction effect, so that the fuel at the bottom of the oil storage barrel is sucked into the oil storage barrel. The jet pump is set at the bottom of the oil barrel. The noise generated during the fuel injection will be directly transmitted to the bottom of the fuel tank, and the noise of the product is relatively obvious. Utility Model Content

[0003] In view of this, the utility model provides an oil storage barrel with a jet pump.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An oil storage barrel with a jet pump comprises an oil storage barrel and a jet pump, wherein an oil cavity is formed in the oil storage barrel, the oil storage barrel has an inner bottom surface located in the oil cavity, the jet pump is arranged in the oil cavity and is connected and fixed to the inner bottom surface of the oil storage barrel, and the inner bottom surface and the jet pump are detachably connected.

[0006] Preferably, a jet pump positioning portion is provided on the inner bottom surface, the jet pump positioning portion is protruded on the inner bottom surface, the jet pump is detachably connected to the jet pump positioning portion, an oil inlet is provided on the jet pump positioning portion, and the oil inlet is connected to the jet pump.

[0007] Preferably, the jet pump has a tank oil inlet, an injection part and an oil barrel oil inlet, an oil channel is formed in the jet pump, and the injection part and the oil barrel oil inlet are respectively provided with a tank oil inlet, an injection port and an oil barrel oil inlet connected to the oil channel, and the oil inlet is connected to the oil channel through the tank oil inlet.

[0008] Preferably, a one-way valve is provided between the oil inlet and the oil inlet of the fuel tank, the cross-sectional shape of the one-way valve is a T-shaped structure, the one-way valve has an anti-backflow portion and a connecting rod portion, a gap is provided between the connecting rod portion and the inner wall of the oil inlet, a limiting structure is provided at the lower part of the connecting rod portion, and the outer diameter of the limiting structure is larger than the outer diameter of the connecting rod portion.

[0009] Preferably, the backflow prevention portion is arranged in an umbrella-shaped structure at the top of the connecting rod portion, and the backflow prevention portion has an inclined annular surface, and the inclined direction of the inclined annular surface is arranged from the center of the top of the backflow prevention portion toward the radial direction of the connecting rod portion.

[0010] Preferably, a positioning groove is provided on the positioning portion of the jet pump, and a positioning end is provided at the bottom end of the jet pump, and the positioning end extends into the positioning groove and is connected to the inner bottom surface.

[0011] The beneficial effect of this utility model is that by directly positioning the jet pump on the inner bottom surface of the oil storage barrel, compared to the prior art design of placing the jet pump inside the oil tank, this design can effectively reduce the resistance during the oil delivery process, thereby reducing noise and improving oil delivery efficiency. In addition, the detachable connection between the jet pump and the inner bottom surface of the oil storage barrel allows for quick and easy removal and replacement of the jet pump if it malfunctions or requires maintenance, significantly improving equipment maintenance efficiency and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Attachment Figure 2 For attachment Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] The utility model provides the following technical solutions:

[0018] As attached Figure 1-2As shown, the utility model discloses an oil storage barrel with a jet pump, comprising an oil storage barrel 1 and a jet pump 2. The oil storage barrel 1 defines an oil chamber 3, and the oil storage barrel 1 has an inner bottom surface 4 located within the oil chamber 3. The jet pump 2 is disposed within the oil chamber 3 and fixedly connected to the inner bottom surface 4 of the oil storage barrel 1. The inner bottom surface 4 and the jet pump 2 are detachably connected. Specifically, in this design, by directly locating the jet pump 2 within the inner bottom surface 4 of the oil storage barrel 1, compared to the prior art in which the jet pump 2 is disposed within the fuel tank, this design can effectively reduce resistance during oil delivery. Furthermore, by locating the jet pump within the oil storage barrel, the noise generated by fuel injection is absorbed by the surrounding fuel and blocked by the oil storage barrel, resulting in less noise. Furthermore, the detachable connection between the jet pump 2 and the inner bottom surface 4 of the oil storage barrel 1 allows for quick and easy removal and replacement when the jet pump 2 malfunctions or requires maintenance, significantly improving equipment maintenance efficiency and reducing maintenance costs. In a specific embodiment, the inner bottom surface 4 of the oil storage barrel 1 can be designed into a concave structure to adapt to the shape of the jet pump 2 and ensure that the jet pump 2 fits tightly with the inner bottom surface 4 of the oil storage barrel 1. The connection part of the jet pump 2 can adopt a threaded connection, a snap connection or other mechanical connection methods to ensure the stability and reliability of the connection. In order to further improve the performance of the oil storage barrel 1, the oil inlet 6 of the jet pump 2 can be set at the bottom of the oil storage barrel 1. In this way, the gravity of the oil itself can be utilized to make it easier for the oil to enter the jet pump 2, thereby improving the oil suction efficiency of the jet pump 2. At the same time, the oil outlet of the jet pump 2 can be set on the side or top of the oil storage barrel 1 to facilitate the output and delivery of the oil.

[0019] Furthermore, a jet pump positioning portion 5 is provided on the inner bottom surface 4. The jet pump positioning portion 5 is protrudingly formed on the inner bottom surface 4. The jet pump 2 is detachably connected to the jet pump positioning portion 5. The jet pump positioning portion 5 is provided with an oil inlet 6, which is connected to the jet pump 2. Specifically, in this embodiment, the shape of the jet pump positioning portion 5 is designed to have a groove structure that matches the bottom surface of the jet pump 2, ensuring that the jet pump 2 can be firmly positioned on the positioning portion.

[0020] Furthermore, the jet pump 2 has a tank oil inlet 7, an injection part 8 and an oil barrel oil inlet 9. An oil passage 10 is formed in the jet pump 2. The injection part 8 and the oil barrel oil inlet 9 are respectively provided with a tank oil inlet 11, an injection port 12 and an oil barrel oil inlet 13 connected to the oil passage 10. The oil inlet 6 is connected to the oil passage through the tank oil inlet 11.

[0021] Furthermore, a one-way valve 14 is provided between the oil inlet 6 and the oil tank inlet 11. The cross-sectional shape of the one-way valve 14 is arranged in a T-shaped structure. The one-way valve 14 has an anti-backflow portion 15 and a connecting rod portion 16. A gap is provided between the connecting rod portion 16 and the inner wall of the oil inlet 6. A limiting structure 17 is provided at the lower portion of the connecting rod portion 16. The limiting structure 17 is formed protrudingly on the connecting rod portion 16. The outer diameter of the limiting structure 17 is larger than the outer diameter of the connecting rod portion 16 and the inner diameter of the oil inlet 6, so that the position of the one-way valve is limited within the oil inlet 6. When the oil flows from the oil tank through the oil inlet 11 into the oil channel 10, the anti-backflow portion 15 of the one-way valve 14 opens, allowing the oil to pass smoothly. However, when the oil attempts to flow in the reverse direction, the anti-backflow portion 15 closes, preventing the oil from flowing back and ensuring the one-way flow of the oil. In addition, the gap between the connecting rod portion 16 of the one-way valve 14 and the inner wall of the oil inlet 6 allows the oil to pass through without causing unnecessary resistance to the one-way valve 14. This design ensures the smooth flow of oil in the system while preventing the problem of oil backflow caused by reverse flow. Specifically, in this embodiment, the anti-backflow portion 15 of the one-way valve 14 is designed to be a rubber or plastic material with elasticity. When the oil flows normally, the anti-backflow portion 15 is pushed open, allowing the oil to pass smoothly. In the case of oil backflow, the anti-backflow portion 15 automatically closes to prevent the oil from flowing in the opposite direction, thereby ensuring the normal operation of the jet pump 2.

[0022] Furthermore, the backflow prevention portion 15 is arranged in an umbrella-like structure at the top of the connecting rod portion 16. The backflow prevention portion 15 has an inclined annular surface 18, which is inclined in a direction from the center of the top of the backflow prevention portion 15 toward the radial direction of the connecting rod portion 16. Specifically, in this embodiment, the inclination angle of the inclined annular surface 18 is precisely calculated to ensure that under normal operating pressure, liquid can smoothly pass through the backflow prevention portion 15. However, if the liquid attempts to flow back, the inclined annular surface 18 can effectively prevent the liquid from flowing back. This design not only improves the operating efficiency of the jet pump 2, but also enhances the safety performance of the system.

[0023] Furthermore, a positioning groove 19 is formed on the jet pump positioning portion 5, and a positioning end 20 is provided at the bottom end of the jet pump 2. The positioning end 20 extends into the positioning groove 19 and is connected to the inner bottom surface 4. Specifically, in this embodiment, the positioning end 20 of the jet pump 2 and the positioning groove 19 adopt an interference fit to ensure that the jet pump 2 does not move during operation.

[0024] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil storage barrel with a jet pump, comprising an oil storage barrel and a jet pump, wherein an oil chamber is formed in the oil storage barrel, and characterized in that: The oil storage barrel has an inner bottom surface located in the oil cavity, the jet pump is arranged in the oil cavity and is fixedly connected to the inner bottom surface of the oil storage barrel, the inner bottom surface and the jet pump are detachably connected, the jet pump has a tank oil inlet part, an injection part and an oil barrel oil inlet part, an oil channel is formed in the jet pump, the injection part and the oil barrel oil inlet part respectively have a tank oil inlet port, an injection port and an oil barrel oil inlet connected to the oil channel, the oil inlet is connected to the oil channel through the tank oil inlet, a one-way valve is arranged between the oil inlet and the tank oil inlet, the cross-sectional shape of the one-way valve is arranged in a T-shaped structure, the one-way valve has an anti-backflow part and a connecting rod part, a gap is arranged between the connecting rod part and the inner wall of the oil inlet, a limiting structure is arranged at the lower part of the connecting rod part, and the outer diameter of the limiting structure is larger than the outer diameter of the connecting rod part.

2. The oil storage barrel with a jet pump according to claim 1, characterized in that: A jet pump positioning portion is provided on the inner bottom surface, the jet pump positioning portion is protruded on the inner bottom surface, the jet pump is detachably connected to the jet pump positioning portion, an oil inlet is provided on the jet pump positioning portion, and the oil inlet is connected to the jet pump.

3. The oil storage barrel with a jet pump according to claim 1, characterized in that: The backflow prevention part is arranged in an umbrella-shaped structure at the top of the connecting rod part. The backflow prevention part has an inclined annular surface, and the inclined direction of the inclined annular surface is arranged from the center of the top of the backflow prevention part toward the radial direction of the connecting rod part.

4. The oil storage barrel with a jet pump according to claim 2, characterized in that: A positioning groove is provided on the positioning portion of the jet pump, and a positioning end is provided at the bottom end of the jet pump. The positioning end extends into the positioning groove and is connected with the inner bottom surface.

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