CN216518353U - Shunt siphon oil-electric jet fuel pump assembly - Google Patents

Abstract

The utility model relates to a shunt siphon oil electric jet fuel pump assembly which comprises a fuel storage barrel, a fuel pump and an oil absorption injection device, wherein the fuel pump is arranged in the fuel storage barrel, a pump head of the fuel pump is provided with an oil supply outlet nozzle and an injection outlet nozzle, a first connector, a second connector and an injection channel are arranged on an injection pump body of the oil absorption injection device, a pump cavity in the injection pump body is communicated with the first connector, the first connector is connected with the injection outlet nozzle, the pump cavity is provided with an injection orifice, the injection orifice is connected with the injection channel, and a connection port of the second connector, which is communicated with the injection channel, is positioned on the side wall of the injection channel and is positioned at the side of an outlet of the injection orifice. The fuel that utilizes the fuel pump additionally to pump forms suction in drawing penetrating the pump body to can inhale the fuel in the oil tank and supply with the fuel pump in the oil storage bucket, especially the difficult fuel that gets into the oil storage bucket in the oil tank, can let the oil tank put into various shapes and can adapt to the vehicle and effectively utilize the vehicle space, avoid appearing the unable make full use of's of fuel in the oil tank the condition, it is more practical.

Description

Shunt siphon oil-electric jet fuel pump assembly

Technical Field

The utility model relates to an electronic fuel injection pump assembly.

Background

The electric injection fuel pump assembly is a combination of an electric injection fuel pump, an oil storage barrel, an oil level sensor, a top cover, a filter and the like, and is one of main parts of a fuel vehicle. The fuel pump is used for pumping fuel in the fuel tank, and the internal structure of the fuel pump draws the fuel to a fuel outlet nozzle of a pump head of the fuel pump to output the fuel to the engine at rated pressure. The requirement of the modern vehicles on space is extremely high, namely the requirement on the utilization rate of the vehicle space is extremely high, so that various special-shaped fuel tanks are designed to fully utilize the vehicle space, but the difficulty in utilizing fuel is increased.

SUMMERY OF THE UTILITY MODEL

In view of the technical problems in the background art, the technical problem to be solved by the present invention is to provide a split siphon oil-electric injection fuel pump assembly. The oil suction ejector device can suck the fuel which is not easy to enter the oil storage barrel, is more practical and ensures the full use of the fuel.

In order to solve the technical problem, the utility model adopts the following technical scheme: shunt siphon oil electricity spouts fuel pump assembly, including oil storage bucket and fuel pump, the fuel pump setting is equipped with fuel feeding oil nozzle, its characterized in that on the pump head of fuel pump in the oil storage bucket: the assembly also comprises an oil absorption ejector, the pump head of the fuel pump is also provided with an ejection oil outlet nozzle, the oil absorption ejector comprises an ejector pump body, the ejector pump body is provided with a first interface, a second interface and an injection channel, a pump cavity is arranged in the ejector pump body, the pump cavity is communicated with the first interface, the first interface is connected with the ejection oil outlet nozzle, the pump cavity is provided with an injection orifice, the injection orifice is connected with the injection channel,

the second interface is communicated with the injection channel, a connecting port of the second interface communicated with the injection channel is positioned on the side wall of the injection channel and is positioned at the side of the outlet of the injection port, and the second interface is connected with the oil suction pipe. In this assembly, set up the oil absorption and draw and penetrate device and be connected with the fuel pump, utilize the fuel pump additionally to pump the fuel and form suction in drawing the pump body to can inhale the fuel storage bucket in the oil tank and supply with the fuel pump, especially difficult entering fuel storage bucket's fuel in the oil tank, and then can let the oil tank set to various shapes and can adapt to the vehicle and effectively utilize the vehicle space, avoid appearing the unable make full use of's of fuel in the oil tank the condition, it is more practical.

The following various optimization or supplementary explanations may be made in the above technical solutions.

For example, the ejection port is provided with an ejection nozzle. Additionally, the spray nozzle is arranged, so that the spray effect is better, the spray nozzle can be processed respectively, the structure and the material of the spray nozzle can be additionally optimized, and the service life of the spray nozzle is longer and more reasonable.

For another example, the pump chamber has a process port with a closure. The injection pump is convenient to manufacture and form, and particularly, the injection pump body is manufactured in injection molding and other modes, and the injection nozzle is convenient to install.

The sealing piece is a ball, and the ball is connected with the process port in a tight fit manner. The ball is convenient to obtain materials, convenient to install and good in sealing effect.

In addition, the pump cavity, the jet ports of the pump cavity and the jet channels are arranged on the same straight line. Structural configuration is reasonable, and the injection force is great, forms suction easily in the position of jet orifice to make the second interface absorb the fuel.

Preferably, the process ports of the pump chamber are aligned with the injection channels. The processing and the manufacturing are more reasonable, and the forming is more convenient.

In addition, a filter can be arranged in the oil storage barrel, and the oil supply outlet nozzle is connected with the filter. Can filter the fuel, let the follow-up confession of fuel after the filter use cleaner.

Additionally optimize, still be equipped with filter screen device in the oil storage bucket, filter screen device is connected with the entry of fuel pump, draws the pump body to be located filter screen device's top, draws the injection passage of drawing the pump body towards filter screen device. The fuel is filtered before entering the fuel pump, so that impurities are prevented from entering the fuel pump to cause blockage, the service life of the fuel pump is longer, and the operation is more stable. The fuel oil ejected together with the ejection of the ejection channel of the ejection pump body is sucked to wash the filter screen device, so that impurities and dirt on the filter screen device are washed and washed, and the service life of the filter screen device is longer.

The utility model has the advantages that the shunting siphon oil-electric jet fuel pump assembly is provided with the oil absorption ejector which is connected with the fuel pump and forms suction force by utilizing the fuel additionally pumped out by the fuel pump, thereby being capable of sucking the fuel in the fuel tank into the fuel storage barrel to supply to the fuel pump, particularly ensuring the fuel which is difficult to enter the fuel storage barrel in the fuel tank to be fully used, further, the oil tank can be arranged into various shapes to adapt to vehicles to effectively utilize the space of the vehicles, the situation that the fuel in the oil tank cannot be fully utilized is avoided, the fuel can be better utilized, the vehicle space can be effectively utilized when the fuel tank is designed, the fuel tank is more practical, and does not need extra power injection, but utilizes the oil output by the fuel pump to inject and absorb oil to form siphon (or called air suction effect), the mechanism is formed when the fuel pump assembly is started, and the oil absorption injection device is in a running state. Thus, the present invention provides substantial features and advances over the prior art.

Drawings

The following describes details and operational principles of embodiments and examples of the present invention with reference to the drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of fig. 1 from another angle.

Fig. 3 is a schematic structural diagram of the oil absorption injection device in the utility model.

Fig. 4 is a schematic view of the structure of the spray nozzle of fig. 3.

Fig. 5 is another angle structure diagram of fig. 3.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a cross-sectional view, taken from a-a in fig. 6, from a perspective view.

In the figure: 1. a fuel pump; 2. an oil supply and outlet nozzle; 3. an oil absorption injection device; 4. an injection oil outlet nozzle; 5. an injection pump body; 6. a first interface; 7. a second interface; 8. an injection channel; 9. a pump chamber; 10. an ejection port; 11. a tube; 12. a connection port; 13. an oil suction pipe; 14. a spray nozzle; 15. a process port; 16. a closure member; 17. a filter; 18. a strainer device; 19. and (7) an outlet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to the drawings, the shunt siphon oil electric jet fuel pump assembly in the embodiment includes a fuel storage tank (not shown), a fuel pump 1, and the like. The fuel pump 1 sets up in the oil storage bucket, is equipped with fuel feeding glib 2 on the pump head of fuel pump 1, and fuel feeding glib 2 connects out and is used for normal fuel feeding, for the mature technique, no longer gives unnecessary details.

The flow-dividing siphon oil-electric jet fuel pump assembly further comprises an oil-absorbing injection device 3, and an injection oil outlet nozzle 4 is further arranged on the pump head of the fuel pump 1, namely the oil outlet nozzle on the pump head of the fuel pump 1 is additionally provided with one injection oil outlet nozzle for injection.

The oil absorption ejector 3 comprises an ejector body 5, and the ejector body 5 is provided with a first connector 6, a second connector 7 and an injection passage 8. The injection pump body 5 is internally provided with a pump cavity 9, the pump cavity 9 is communicated with a first connector 6, the first connector 6 is connected with the injection oil outlet nozzle 4, and fuel oil pumped out from the fuel pump 1 passes through the injection oil outlet nozzle 4 and then enters the pump cavity 9 through the first connector 6. The pump chamber 9 has injection ports 10, the injection ports 10 are connected with the injection passage 8, and the fuel entering the pump chamber 9 is ejected from the injection ports 10 and injected through the injection passage 8 to be ejected at high speed to form injection impact force. The first mouthpiece 6 may be provided in the form of a first mouthpiece. The first port 6 may be connected to the jet nozzle 4 by a pipe 11.

Wherein, the second interface 7 is communicated with the injection channel 8, the connecting port 12 of the second interface 7 communicated with the injection channel 8 is positioned on the side wall of the injection channel 8, and the connecting port 12 is positioned at the side of the outlet 19 of the injection port 10, during the injection process, a suction force will be formed, so that the connecting port 12 sucks oil; the second interface 7 is connected to the oil suction pipe 13 so as to be connected through the oil suction pipe 13, and subsequently, the inlet of the oil suction pipe 13 is connected to a position where oil suction is needed, for example, a fuel oil position in the oil tank where the oil tank is not easy to enter the oil storage barrel, and the number of the oil suction pipes 13 may be multiple. The second mouthpiece 7 may be provided in the form of a second mouthpiece.

During operation, the fuel pump 1 starts to pump out fuel, the pumped fuel is supplied to an oil way for normal use through the fuel supply oil outlet nozzle 2, the oil absorption injection device 3 operates through the injection oil outlet nozzle 4, the fuel sprayed out of the injection pump body 5 is injected in the injection passage 8, negative pressure is formed in the injection passage 8 to form suction force, and the fuel can be absorbed in the injection passage 8 through the connection port 12 of the second connector 7 and the injection passage 8.

In the shunting siphon oil-electric jet fuel pump assembly, an oil absorption ejector device 3 is arranged to be connected with a fuel pump 1, the oil absorption ejector device 3 forms suction by using fuel additionally pumped by the fuel pump 1, so that the fuel in the fuel tank can be sucked into a fuel storage barrel to be supplied to the fuel pump 1, particularly the fuel which is not easy to enter the fuel storage barrel in the fuel tank can be ensured to be fully used, the fuel tank can be further arranged into various shapes to be suitable for vehicles to effectively utilize the space of the vehicles, the condition that the fuel in the fuel tank can not be fully utilized is avoided, the fuel can be better utilized, the space of the vehicles can be effectively utilized when the fuel tank is designed, the fuel at discrete concave parts inside the fuel tank can be favorably introduced into the electric jet fuel pump 1, the siphon oil-electric jet fuel pump assembly is more practical, additional power injection is not needed, the output of the fuel pump 1 is used for ejecting and absorbing oil, and a siphon (or called air suction effect) is formed, the mechanism is formed when the fuel pump assembly is started, so that the oil suction injection device 3 is in a running state.

The following optimization or further explanation can be made on the basis of the above embodiments, respectively.

For example, the injection port 10 is provided with an injection nozzle 14. The additional injection nozzle 14 that sets up lets the injection effect better, can process respectively, and the structure, the material of injection nozzle 14 can additionally be optimized, and are more reasonable.

For another example, pump chamber 9 has a process port 15, and process port 15 is provided with a closure 16. The injection pump body 5 is convenient to manufacture and form, particularly the injection pump body 5 is manufactured by injection molding and the like, the injection nozzle 14 is convenient to install, and the sealing piece 16 is used for sealing the opening of the process port 15.

Wherein, the sealing member 16 may be a ball, and the ball is tightly fitted and connected with the process port 15. The ball is convenient to obtain materials, such as steel balls and the like, the installation is convenient, the ball is plugged into the tight fitting mechanism, the process port 15 can be a round port, and the sealing effect is good. The process port 15 can be set as a step port, so that balls can be conveniently plugged into the process port for limiting.

Further preferably, the pump chamber 9 and the injection opening 10 of the pump chamber 9 and the injection passage 8 are arranged in the same line. The structure layout is reasonable, the injection force is large, and the suction force is easily formed at the position of the injection port 10, so that the second interface 7 can suck fuel.

Still further preferably, the process ports 15 of the pump chamber 9 are in line with the ejection channels 8. The processing and the manufacturing are more reasonable, and the forming is more convenient.

In addition, a filter 17 can be arranged in the oil storage barrel, and the oil supply outlet nozzle 2 is connected with the filter 17. The filter 17 can filter the fuel oil, and the fuel oil passing through the filter 17 is subsequently supplied and used more cleanly.

In addition, a filter screen device 18 is further arranged in the oil storage barrel, the filter screen device 18 is connected with an inlet of the fuel pump 1, the injection pump body 5 is located above the filter screen device 18, and the injection channel 8 of the injection pump body 5 faces the filter screen device 18, namely an outlet 19 of the injection channel 8 faces the filter screen device 18. The fuel oil is filtered before entering the fuel pump 1, so that the blockage caused by the impurities entering the fuel pump 1 is avoided, the service life of the fuel pump 1 is longer, and the operation is more stable. The fuel ejected together with the ejection and the suction of the ejection channel 8 of the ejection pump body 5 washes the filter screen device 18, so that impurities and dirty objects on the filter screen device 18 are washed and washed, and the service life of the filter screen device 18 is longer.

The foregoing is a preferred embodiment of the present invention, and it should be noted that the scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the scope of the utility model as set forth in the claims.

Claims (8)

1. The shunt siphon oil-electric jet fuel pump assembly comprises an oil storage barrel and a fuel pump (1), wherein the fuel pump (1) is arranged in the oil storage barrel, a pump head of the fuel pump (1) is provided with an oil supply outlet nozzle (2),

the method is characterized in that: the assembly also comprises an oil absorption injection device (3), an injection oil outlet nozzle (4) is arranged on the pump head of the fuel pump (1),

the oil-absorbing ejector (3) comprises an ejector pump body (5), a first connector (6), a second connector (7) and an injection channel (8) are arranged on the ejector pump body (5), a pump cavity (9) is arranged in the ejector pump body (5),

the pump cavity (9) is communicated with the first interface (6), the first interface (6) is connected with the injection oil outlet nozzle (4),

the pump chamber (9) has an injection opening (10), the injection opening (10) is connected with the injection channel (8),

the second interface (7) is communicated with the injection channel (8), an engaging port (12) of the second interface (7) communicated with the injection channel (8) is positioned on the side wall of the injection channel (8), and the engaging port (12) is positioned at the side of an outlet (19) of the injection port (10),

the second interface (7) is connected with an oil suction pipe (13).

2. The split siphon oil-electric jet fuel pump assembly of claim 1, wherein: the injection port (10) is provided with an injection nozzle (14).

3. The split siphon oil-electric jet fuel pump assembly of claim 1 or 2, wherein: the pump chamber (9) has a process port (15), the process port (15) being provided with a closure (16).

4. The split siphon oil electric jet fuel pump assembly of claim 3, wherein: the sealing piece (16) is a ball which is tightly matched and connected with the process port (15).

5. The split siphon oil-electric jet fuel pump assembly of claim 1, wherein: the pump chamber (9), the injection port (10) of the pump chamber (9), and the injection passage (8) are arranged on the same straight line.

6. The split siphon oil electric jet fuel pump assembly of claim 5, wherein: the process port (15) of the pump chamber (9) is in line with the injection channel (8).

7. The split siphon oil-electric jet fuel pump assembly of claim 1, wherein: a filter (17) is also arranged in the oil storage barrel, and the oil supply outlet nozzle (2) is connected with the filter (17).

8. The split siphon oil-electric jet fuel pump assembly of claim 1, wherein: the oil storage barrel is also internally provided with a filter screen device (18), the filter screen device (18) is connected with an inlet of the fuel pump (1), the injection pump body (5) is positioned above the filter screen device (18), and an injection channel (8) of the injection pump body (5) faces the filter screen device (18).

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