CN206816417U - A fuel supply device for an engine - Google Patents

Abstract

The utility model relates to the technical field of power equipment, in particular to a fuel supply device for an engine, which comprises an oil inlet piece for introducing fuel, an oil outlet piece for outputting the fuel to the engine and two pump bodies, wherein the oil outlet piece comprises a converging piece and two connecting pipes respectively connected with the converging piece, the oil inlet pipes of the two pump bodies are connected with the oil inlet piece, and the oil outlet pipes of the two pump bodies are respectively connected with the two connecting pipes; one ends of the two connecting pipes close to the converging piece are bent towards the direction close to each other, and the included angle between the ends of the two connecting pipes close to the converging piece is 60-120 degrees. Through being equipped with two pump bodies, and all be the contained angle with the piece that converges with two pump body connection's connecting pipe respectively, can be guaranteeing to reduce the pressure that the single pump body received under the prerequisite of methanol pump to engine smoothly to the life of the pump body has been prolonged, and has guaranteed the reliability of the pump body.

Description

A fuel supply device for an engine

technical field

The utility model relates to the technical field of power equipment, in particular to a fuel supply device for an engine.

Background technique

At present, most industrialized equipment is fueled by petroleum. However, after so many years of squandering, there is not much oil in the world today. In addition, the burning of oil produces greenhouse gases and causes the greenhouse effect. Therefore, countries all over the world are working hard to develop new energy sources. Methanol is the most realistic and ideal vehicle. alternative fuel.

Methanol is miscible with water, ethanol, ether, benzene, ketones, halogenated hydrocarbons and many other organic solvents, so the methanol fuel on the market contains other impurities to varying degrees and methanol does not contain lubricants, and in actual use Because the methanol fuel tank is affected by the temperature difference, the water vapor in the air will dissolve in the methanol fuel, so the service life of the methanol pump is shorter than that of gasoline, and the reliability is poor. Especially, the increase of methanol consumption on large engines or the increase of boost pressure of supercharged engines requires a corresponding increase in the supply pressure of methanol fuel so that methanol fuel can enter the engine for combustion smoothly, which further makes the life and reliability of the methanol pump seriously serious. decline. Methanol pump is an indispensable fuel supply device for methanol engine, its service life and reliability directly affect the reliability of methanol engine.

Contents of the invention

The utility model provides a fuel supply device for an engine aiming at the problems of the prior art, which can avoid the decrease of the service life and reliability of the pump body caused by pumping methanol.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

The utility model provides a fuel supply device for an engine, which includes an oil inlet for introducing fuel, an oil outlet for outputting fuel to the engine, and two pump bodies, and the oil outlet includes a confluence And two connecting pipes respectively connected to the confluence, the oil inlet pipes of the two pump bodies are connected to the oil inlet parts, and the oil outlet pipes of the two pump bodies are respectively connected to the two connecting pipes; the two connecting pipes are close to the confluence One end of the piece is bent toward each other, the angle between the ends of the two connecting pipes close to the confluence is 60°-120°, and the ends of the two connecting pipes away from the confluence are arranged in parallel.

Further, the fuel supply device further includes a fixing frame, and the two pump bodies are fixedly installed on the fixing frame.

Further, oil delivery parts are respectively connected between the oil inlet pipes of the two pump bodies and the oil inlet parts, and the two oil delivery parts are parallel to each other.

Furthermore, the end of the confluence part away from the connecting pipe is parallel to the oil delivery part.

Furthermore, both ends of the oil delivery part are respectively screwed to the oil inlet pipe of the pump body and the oil inlet part.

Furthermore, both ends of the oil delivery part are respectively connected to the oil inlet pipe of the pump body and the oil inlet part through quick plugs.

Further, the two ends of the connecting pipe are respectively screwed to the oil outlet pipe of the pump body and the confluence piece.

Further, both ends of the connecting pipe are respectively connected to the oil outlet pipe of the pump body and the confluence piece through quick plugs.

Beneficial effects of the utility model: by being provided with two pump bodies, and the connecting pipes respectively connected with the two pump bodies form an included angle with the confluence piece, it is possible to reduce the single The pressure on the pump body prolongs the service life of the pump body and ensures the reliability of the pump body.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is a schematic diagram of another embodiment of the present invention.

Reference signs: 1—oil inlet, 2—pump body, 3—oil outlet, 4—fixed frame, 5—quick plug, 12—oil delivery parts, 21—oil inlet pipe, 22—oil outlet pipe, 31—connection Tube, 32 - Confluence.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model. Below in conjunction with accompanying drawing, the utility model is described in detail.

Example 1

As shown in Figure 1, a fuel supply device for an engine provided by the utility model includes an oil inlet 1 for introducing fuel, an oil outlet 3 for outputting fuel to the engine, and two pump bodies 2 , the oil outlet part 3 includes a confluence part 32 and two connecting pipes 31 respectively connected to the confluence part 32, the oil inlet pipes 21 of the two pump bodies 2 are connected to the oil inlet part 1 in parallel, and the two pump bodies The oil outlet pipes 22 of 2 are respectively connected to two connecting pipes 31; the ends of the two connecting pipes 31 close to the confluence are bent towards each other, and the angle between the ends of the two connecting pipes 31 close to the confluence is 60° -120°, the ends of the two connecting pipes 31 away from the confluence part are arranged in parallel. Connect the confluence part 32 to the engine, and the oil inlet part 1 to the methanol fuel tank. When the engine needs to work, the two pump bodies 2 pump the methanol fuel out of the methanol fuel tank respectively, and the two pump bodies 2 pump out the methanol fuel respectively. The methanol fuel is brought together at the confluence part 32 after being introduced through the connecting pipe 31, and then delivered to the engine. The utility model is provided with two pump bodies 2, and the connecting pipes 31 respectively connected to the two pump bodies 2 form an included angle with the confluence part 32, which can reduce the single The pressure on the pump body 2 prolongs the service life of the pump body 2 and ensures the reliability of the pump body 2 . In addition, if the utility model is used to pump petroleum fuel, only one pump body 2 can be started to work, and the other pump body 2 is used as a spare pump body 2, thereby improving the reliability and stability of the utility model , reducing the number of maintenance.

As shown in FIG. 1 , in this embodiment, the fuel supply device further includes a fixing frame 4 on which the two pump bodies 2 are fixedly installed. The two pump bodies 2 are fixedly installed on the fixing frame 4, and then the fixing frame 4 is installed in the equipment, so that the two pump bodies 2 can be installed as a module, and the installation steps are reduced.

As shown in FIG. 1 , in this embodiment, oil delivery parts 12 are respectively connected between the two pump bodies 2 and the oil inlet part 1 , and the two oil delivery parts 12 are connected to the oil inlet part 1 in parallel. Connecting the pump body 2 and the oil inlet part 1 through the oil delivery part 12 can increase the distance between the pump body 2 and the methanol oil tank, preventing the pump body 2 from vibrating during operation and causing interference to the methanol oil tank.

As shown in Figure 1, in this embodiment, the confluence member 32 is parallel to the oil delivery part 12, so that the input and output of methanol fuel are basically kept horizontal, thereby ensuring that the pump body 2 can provide sufficient pressure to transport methanol Fuel is delivered to the engine.

As shown in Figure 1, in this embodiment, the two ends of the oil delivery part 12 are respectively connected to the pump body 2 and the oil inlet part 1 through the quick plug 5; the two ends of the connecting pipe 31 are respectively The quick plug 5 is connected to the pump body 2 and the confluence piece 32, so that the utility model is easy to disassemble, thereby reducing the time and manpower required for maintenance.

As shown in Figure 1, in this embodiment, the oil outlet part 3 and the oil delivery part 12 are all made of methanol-resistant materials, which ensures that the oil outlet part 3 and the oil delivery part 12 will not be exposed to the corrosion of methanol destroyed, thereby ensuring the service life and reliability of the utility model.

Example 2

As shown in Figure 2, the difference between this embodiment and Embodiment 1 is that: the two ends of the oil delivery part 12 are respectively threadedly connected to the pump body 2 and the oil inlet part 1; Two ends of the pipe 31 are respectively connected to the pump body 2 and the confluence member 32 by threads. Its effect is consistent with connecting with the quick plug 5, and will not repeat them here.

Except for this, other features of this embodiment are consistent with those of Embodiment 1, and will not be repeated here.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above with the preferred embodiment, it is not used to limit the utility model. Anyone who is familiar with the utility model Professional technicians, without departing from the scope of the technical solution of the present utility model, should use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but if they do not depart from the technical solution of the present utility model, the The utility model technology refers to any simple modification, equivalent change and modification made to the above embodiments, which all belong to the scope of the utility model technical solution.

Claims (8)

1. A fuel supply device for an engine, characterized in that: it includes an oil inlet for introducing fuel, an oil outlet for outputting fuel to the engine, and two pump bodies, the oil outlet includes a confluence parts and two connecting pipes respectively connected to the confluence part, the oil inlet pipes of the two pump bodies are connected to the oil inlet parts, and the oil outlet pipes of the two pump bodies are respectively connected to the two connecting pipes; the two connecting pipes are close to One end of the converging part is bent toward the direction of approaching each other, the angle between the ends of the two connecting pipes close to the converging part is 60°-120°, and the ends of the two connecting pipes away from the converging part are arranged in parallel. 2 . The fuel supply device for an engine according to claim 1 , wherein the fuel supply device further comprises a fixing frame, and the two pump bodies are fixedly mounted on the fixing frame. 3 . 3. The fuel supply device for the engine according to claim 1, characterized in that: oil delivery parts are respectively connected between the oil inlet pipes of the two pump bodies and the oil inlet parts, and the two oil delivery parts are parallel to each other . 4. The fuel supply device for an engine according to claim 3, characterized in that: the end of the confluence part away from the connecting pipe is parallel to the oil delivery part. 5 . The fuel supply device for an engine according to claim 3 , wherein both ends of the oil delivery member are respectively screwed to the oil inlet pipe of the pump body and the oil inlet member. 6 . 6 . The fuel supply device for an engine according to claim 3 , characterized in that: both ends of the oil delivery part are respectively connected to the oil inlet pipe of the pump body and the oil inlet part through quick plugs. 7 . 7 . The fuel supply device for an engine according to claim 1 , wherein two ends of the connecting pipe are respectively screwed to the oil outlet pipe of the pump body and the confluent member. 8 . 8 . The fuel supply device for an engine according to claim 1 , characterized in that: both ends of the connecting pipe are respectively connected to the oil outlet pipe of the pump body and the confluent piece through quick plugs.