CN218882402U

CN218882402U - Far-end oil absorption fuel pump assembly of motorcycle

Info

Publication number: CN218882402U
Application number: CN202223425928.3U
Authority: CN
Inventors: 孙国庆; 王威; 佘艳涛; 张立听
Original assignee: Ningbo Rocket Automobile Parts Co ltd
Current assignee: Ningbo Rocket Automobile Parts Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-18
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a motorcycle distal end oil absorption fuel pump assembly for the motorcycle fuel feeding, the fuel pump assembly includes: the oil pump comprises a flange plate assembly, a pump core, a fine filtering assembly, a venturi tube, a one-way valve, an oil pipe joint, a far-end oil suction pipe, a first oil outlet pipe and a second oil outlet pipe, wherein the pump core comprises a first oil outlet and a second oil outlet, the first oil outlet is connected with the venturi tube through the first oil outlet pipe, the second oil outlet is connected with the fine filtering assembly through the second oil outlet pipe, and the fine filtering assembly is arranged on the flange plate assembly; and a connecting hole is formed in the bottom surface of the flange plate assembly, one end of the connecting hole is connected with the one-way valve, the other end of the connecting hole is connected with one end of the oil pipe joint, and the other end of the oil pipe joint is connected with the auxiliary oil tank through the far-end oil suction pipe. The structure of this application distal end oil absorption inhales the main oil tank to the fuel oil of bellytank storage, increases the mileage of traveling.

Description

Far-end oil absorption fuel pump assembly of motorcycle

Technical Field

The utility model relates to a motorcycle field especially involves an oil pump assembly that is used for oil absorption of distal end of motorcycle fuel feeding.

Background

The motorcycle fuel pump assembly in the prior art has the following defects in practical use:

1. the fuel tank of the motorcycle is only provided with one main fuel tank, and when only one main fuel tank is provided, the fuel carried by the motorcycle only has a certain fuel quantity, and the driving mileage only has a certain driving mileage;

2. the motorcycle fuel pump assembly only passes through the primary filter screen, only large-particle impurities are filtered, and some small particles cannot be filtered, so that a fuel spray nozzle is possibly blocked, the carbon deposition amount of a piston cylinder is increased, and the emission of harmful substances in fuel tail gas is increased;

3. there is no distal oil absorbing structure.

Thus, the prior art motorcycle fuel pump assembly also has a place to lift.

Disclosure of Invention

To the problem in the background art, the utility model aims at providing a small, the oil absorption fuel pump assembly of motorcycle distal end that the function is many to solve prior art problem.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a motorcycle distal end oil absorption fuel pump assembly for motorcycle fuel feeding, the motorcycle includes main oil tank and bellytank, the fuel pump assembly includes: the oil pipe comprises a flange plate assembly, a pump core, a fine filter assembly, a venturi tube, a one-way valve, an oil pipe joint, a far-end oil suction pipe, a first oil outlet pipe and a second oil outlet pipe, wherein the connection relationship is as follows: the flange plate is assembled and arranged on the main oil tank; the pump core is arranged on the flange plate assembly and comprises a first oil outlet and a second oil outlet, the first oil outlet is connected with the venturi tube through the first oil outlet pipe, the second oil outlet is connected with the fine filter assembly through the second oil outlet pipe, and the fine filter assembly is arranged on the flange plate assembly; the bottom surface of the flange plate assembly is provided with a connecting hole, one end of the connecting hole is connected with the one-way valve, the other end of the connecting hole is connected with one end of the oil pipe joint, and the other end of the oil pipe joint is connected with the auxiliary oil tank through the far-end oil suction pipe.

Preferably, the fine filtration assembly comprises a fine filtration upper shell, a fine filtration lower shell and a filter element, the fine filtration lower shell is connected with the flange plate assembly in a clamping manner, the fine filtration upper shell is connected with the fine filtration lower shell in a clamping manner, and the filter element is arranged between the fine filtration upper shell and the fine filtration lower shell.

Preferably, the fine filter upper shell comprises a fuel inlet and a pressure valve connecting groove, and the second oil outlet pipe is connected with the fuel inlet; and a pressure valve is arranged in the pressure valve connecting groove and used for returning oil into the main oil tank.

Preferably, the fuel pump assembly further comprises a pressure valve cover, and the pressure valve cover is arranged on the fine filter upper shell and corresponds to the position of the pressure valve.

Preferably, the fuel pump assembly further comprises a liquid blocking cover, the liquid blocking cover is arranged on the flange plate assembly, and an oil outlet of the venturi tube is connected with the liquid blocking cover in an inserting mode.

The technical scheme fuel pump assembly of this application inhales the fuel of bellytank to the main oil tank in, increases the essence and strains the filtration, and the distal end inhales oil structure, essence and strains, the oil level assemblage is in the same place. The specific purposes are as follows:

the structure that a far-end oil suction structure is added mainly sucks fuel stored in an auxiliary fuel tank to a main fuel tank, and the structure that the far-end oil suction structure sucks fuel in the auxiliary fuel tank is added, so that the stroke of the motorcycle can be greatly increased;

(II) fine filtration is carried out for impurity filtration, so that the fuel is cleaner, the blockage of a fuel nozzle is avoided, the carbon deposition amount of a piston cylinder is reduced, and the emission of harmful substances in the tail gas of the fuel is reduced;

and (III) the far-end suction structure, the fine filter assembly and the oil level assembly are integrated on a fuel pump assembly, so that the fuel pump assembly has an integrated structure with multiple functions.

The utility model discloses owing to adopt above technical scheme, make it compare with current technical scheme, have following advantage and positive effect:

firstly, a far-end oil suction structure is added to suck fuel oil stored in an auxiliary oil tank into a main oil tank, so that the driving mileage is increased;

secondly, fine filtration is added, wherein a fine filter element is made of high-precision filter paper, and fuel used by the engine is cleaner;

thirdly, the far-end oil absorption structure, the fine filter and the oil level are assembled and integrated on a fuel pump assembly under the condition that the oil tank opening is not large, and the space is saved.

Of course, it is not necessary to implement any particular embodiment of the present invention to achieve all of the above technical effects at the same time.

Drawings

The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the present invention in a partially exploded view;

fig. 3 is an exploded view of the distal oil absorbing part of the present invention;

FIG. 4 is a schematic view of the fine filtering assembly of the present invention;

FIG. 5 is an exploded view of the fine filter assembly of the present invention;

fig. 6 is a schematic view of the fuel flow of the present invention.

Detailed Description

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

The utility model provides a motorcycle distal end oil absorption fuel pump assembly is used in fuel supply system, the controller of fuel pump assembly receives motorcycle ECU signal, through the information control of controller, the rotational speed of control pump core, the fuel is earlier by pump core pump oil, through the impurity in the filter removal fuel of first filter screen, the fine filtration, one part of them supplies the engine demand through the trunk line, another part is through the pressure valve with the fuel of reposition of redundant personnel in the oil tank, in addition add a distal end oil absorption from the bellytank oil absorption, get back to in the main fuel tank, increase motorcycle mileage.

Referring to fig. 1, 2, 3 and 6, a perspective view and a partially exploded view of a motorcycle distal oil suction fuel pump assembly for supplying fuel to a motorcycle including a main fuel tank 90 and a sub-fuel tank (not shown), as shown in fig. 6, the fuel pump assembly of the present application is an inverted fuel pump assembly screwed under the main fuel tank 90, and the main fuel tank 90 is illustrated as a square in fig. 6 for illustration only and not for limiting the present application; the fuel pump assembly includes: the oil pipe comprises a flange plate assembly 8, a pump core 7, a fine filter assembly, a venturi tube 20, a one-way valve 21, an oil pipe joint 11, a far-end oil suction pipe 23, a first oil outlet pipe 1 and a second oil outlet pipe 2, wherein the connection relationship is as follows: the flange assembly 8 is arranged on the main oil tank 90, and in order to prevent fuel oil from leaking, a sealing ring can be added between the flange assembly 8 and the main oil tank 90, so that the sealing performance of the main oil tank 90 is ensured.

In addition, the pump core 7 is arranged on the flange assembly 8, as shown in fig. 2, the pump core 7 includes a first oil outlet 71 and a second oil outlet 72, in this application, two pump oil outlets of the pump core 7 are provided, the first oil outlet 71 is connected to the venturi tube 20 through the first oil outlet pipe 1 for absorbing oil at a far end, the fuel oil in the secondary oil tank is sucked into the main oil tank 90, the second oil outlet 72 is connected to the fine filter assembly through the second oil outlet pipe 2 for supplying fuel oil to the motorcycle engine, and the fine filter assembly is arranged on the flange assembly 8; in order to enable the fuel in the secondary fuel tank to enter the main fuel tank 90, the bottom surface of the flange assembly 8 is provided with a connecting hole 81, one end of the connecting hole 81 is connected with the one-way valve 21, the other end of the connecting hole 81 is connected with one end of the fuel pipe joint 11, the other end of the fuel pipe joint 11 is connected with the secondary fuel tank through the far-end suction pipe 23, after assembly, the venturi pipe 20 covers the one-way valve 21, in operation, the suction force generated by the venturi pipe 20 opens the one-way valve 21, the fuel flows into the main fuel tank 90 from the secondary fuel tank, and the fuel in the secondary fuel tank only flows into the main fuel tank 90 but the fuel in the main fuel tank 90 does not flow back into the secondary fuel tank because the one-way valve 21 only cannot flow in.

In addition, please refer to fig. 2, fig. 4 and fig. 5, which illustrate a fine filtration assembly structure and an explosion diagram of the fine filtration assembly, the fine filtration assembly includes a fine filtration upper housing 4, a fine filtration lower housing 5 and a filter element 16, the fine filtration lower housing 5 is connected to the flange assembly 8 in a snap-fit manner, the fine filtration upper housing 4 is connected to the fine filtration lower housing 5 in a snap-fit manner, and the filter element 16 is disposed between the fine filtration upper housing 4 and the fine filtration lower housing 5. In the embodiment of the application, the upper fine filter shell 4 is provided with four clamping protrusions, the lower fine filter shell 5 is provided with four clamping grooves corresponding to the positions of the filter element accommodating grooves 51 of the four clamping protrusions of the upper fine filter shell 4, and the filter element 16 is coated in the upper fine filter shell 4 when the upper fine filter shell 4 is clamped and connected with the lower fine filter shell 5, so that sealing rings can be respectively connected to the upper part and the lower part of the filter element 16 to prevent oil leakage and ensure the sealing performance; in addition, as shown in fig. 2, the fine filtration lower housing 5 further includes a pump core receiving groove 52 in addition to the filter core receiving groove 51, the filter core receiving groove 51 and the pump core receiving groove 52 are integrally formed, two locking protrusions are formed on an outer wall of the filter core receiving groove 51, four locking protrusions are formed on an outer wall of the pump core receiving groove 52, two locking grooves are formed in positions of the flange assembly 8 corresponding to the two locking protrusions of the filter core receiving groove 51, and after the locking, an oil outlet of the fine filtration lower housing 5 is connected to an oil outlet of the flange assembly 8; the position of the flange assembly 8 corresponding to the pump core receiving groove 52 is provided with an axial receiving groove 82, the position of the axial receiving groove 82 corresponding to the four clamping protrusions of the pump core receiving groove 52 is provided with four clamping grooves, and after clamping, the pump core 7 is limited between the pump core receiving groove 52 and the axial receiving groove 82; in addition, this application adopts the block subassembly can save installation cost, easy dismounting.

Referring to fig. 2 and 5, the fine filter upper shell 4 includes a fuel inlet 41 and a pressure valve connecting groove 42, the second oil outlet pipe 2 is connected to the fuel inlet 41, and the fuel pumped by the pump core 7 is sent to the fine filter assembly; the pressure valve 12 sets up in the pressure valve connecting groove 42, the pressure valve 12 is used for returning the oil to in the main tank, when fuel pressure exceeded the setting value, the pressure valve 12 opened, and fuel flows back to in the main tank 90 in the pressure valve 12, in fig. 2 the fuel pump assembly still includes a pressure valve cover 3, the pressure valve cover 3 sets up correspond on the fine filtration upper shell 4 the position of pressure valve 12 is used for the fluid noise to keep apart, promptly to following the fuel that flows out in the pressure valve 12 makes an uproar, guarantees the travelling comfort of driving.

As shown in fig. 3, the fuel pump assembly further includes a liquid blocking cover 19, the liquid blocking cover 19 is disposed on the flange assembly 8, an oil outlet of the venturi tube 20 is inserted into and connected to the liquid blocking cover 19, and the liquid blocking cover 19 is used for isolating fluid noise, that is, reducing noise of fuel flowing out of the venturi tube 20, so as to ensure driving comfort.

As shown in fig. 2, the fuel pump assembly further includes an oil level assembly 13, the oil level assembly 13 is disposed on the fine filter upper housing 4, in this embodiment, the oil level assembly 13 is connected to the fine filter upper housing 4 in a snap-fit manner, the oil level of the oil level assembly 13 in the main oil tank 90 is high or low, and a float conducts the fuel level to the oil meter plate under the action of oil.

The fuel pump assembly theory of operation of this application:

1. when the fuel pump assembly starts to work, fuel is filtered through the primary filter screen 6 and the fine filter assembly, one part of flow of an oil outlet of the pump core provides fuel with instant pressure and instant flow for an engine fuel system, the other part returns the shunted fuel pump to the main fuel tank 90 through the pressure valve 12, the other part is shunted by the fuel of the pump core to the far end to absorb oil from the auxiliary fuel tank and returns to the main fuel tank 90, and the driving mileage of the motorcycle is increased;

2. the fuel oil is subjected to primary filtration and fine filtration to filter impurities in the fuel oil, so that the impurities are prevented from entering a pump core 7 and blocking blades, and the fuel oil cannot work normally;

3. the constant pressure through the pressure valve 12 allows the steady pressure in the fuel supply system to enter the engine fuel system;

4. the oil level assembly 13 is arranged at the height of the oil level in the main oil tank 90, and the float conducts the height of the oil level to the oil meter plate under the action of oil.

Referring to FIG. 6, the fuel flow of the present application is illustrated with the arrows indicating the fuel flow direction:

the fuel pump assembly firstly filters fuel oil through a primary filter screen 6 and enters a pump core 7 through the rotation of the pump core 7, then the fuel oil respectively passes through a fine filter assembly from an oil outlet of the pump core 7, one oil way is divided and returns the fuel oil to a main oil tank 90 through a pressure valve 12, one way reaches an oil outlet of a flange assembly 8 and then flows into a fuel engine, and the other way is divided into a venturi tube 20 to generate a siphon effect to suck the fuel oil of an auxiliary oil tank into the main oil tank 90. The oil output from the pump core 7 is transmitted to the oil outlet of the flange assembly after being subjected to fine filtration assembly, so that the engine can meet the consumption of the engine; when the normal consumption of the engine is met, the pump core 7 pumps the redundant fuel oil to return to the main oil tank 90 from the pressure valve 12 for reuse, and the fluid noise is isolated by the pressure valve cover 3.

secondly, fine filtration is added, a fine filtration core is made of high-precision filter paper, and fuel used by the engine is cleaner;

and thirdly, the far-end oil suction structure, the fine filter and the oil level are assembled and integrated on a fuel pump assembly under the condition that the oil tank opening is not large, so that the space is saved.

It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims

1. The utility model provides a motorcycle distal end oil absorption fuel pump assembly for the motorcycle fuel feeding, the motorcycle includes main fuel tank and bellytank, its characterized in that, the fuel pump assembly includes: the oil pump comprises a flange plate assembly, a pump core, a fine filter assembly, a venturi tube, a one-way valve, an oil pipe joint, a far-end oil suction pipe, a first oil outlet pipe and a second oil outlet pipe, wherein the connection relationship is as follows: the flange plate is vertically arranged on the main oil tank; the pump core is arranged on the flange plate assembly and comprises a first oil outlet and a second oil outlet, the first oil outlet is connected with the venturi tube through the first oil outlet pipe, the second oil outlet is connected with the fine filter assembly through the second oil outlet pipe, and the fine filter assembly is arranged on the flange plate assembly; and a connecting hole is formed in the bottom surface of the flange plate assembly, one end of the connecting hole is connected with the one-way valve, the other end of the connecting hole is connected with one end of the oil pipe joint, and the other end of the oil pipe joint is connected with the auxiliary oil tank through the far-end oil suction pipe.

2. The motorcycle distal oil absorption fuel pump assembly of claim 1, wherein the fine filter assembly comprises a fine filter upper housing, a fine filter lower housing, and a filter element, the fine filter lower housing is snap-fit connected to the flange assembly, the fine filter upper housing is snap-fit connected to the fine filter lower housing, and the filter element is disposed between the fine filter upper housing and the fine filter lower housing.

3. The motorcycle distal oil absorption fuel pump assembly of claim 2 wherein said fine filter upper housing includes a fuel inlet and a pressure valve connecting slot, said second fuel line connecting said fuel inlet; and a pressure valve is arranged in the pressure valve connecting groove and used for returning oil into the main oil tank.

4. A motorcycle distal oil absorption fuel pump assembly as set forth in claim 3, further comprising a pressure valve cover disposed on said fine filter upper housing at a position corresponding to said pressure valve.

5. The motorcycle distal oil absorption fuel pump assembly of claim 4 further comprising a liquid blocking cover disposed on said flange assembly, wherein an outlet of said venturi tube is inserted into and connected to said liquid blocking cover.