CN218717204U - Fuel pump assembly and fuel tank - Google Patents
Fuel pump assembly and fuel tank Download PDFInfo
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- CN218717204U CN218717204U CN202223111444.1U CN202223111444U CN218717204U CN 218717204 U CN218717204 U CN 218717204U CN 202223111444 U CN202223111444 U CN 202223111444U CN 218717204 U CN218717204 U CN 218717204U
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- top cover
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Abstract
The utility model discloses a fuel pump assembly, which relates to the technical field of fuel pumps.A top cover flange component is arranged on a fuel tank, a damping component can move relative to the top cover flange component and/or a shell component, and mutually separated elasticity is applied to the top cover flange component and the shell component so as to press the bottom end of the shell component on the inner surface of the fuel tank; a circle of primary filtering lug is convexly arranged on the lower surface of the shell component and surrounds the oil inlet; the lug formation of just straining is a plurality of gaps that are used for circulating fluid, and fluid forms the route of buckling through the gap, and fluid flows in the oil inlet again through the gap that the lug formed of just straining earlier, and the impurity of big granule is blockked by the lug of just straining, reduces the big granule impurity and causes the obstructed condition. The utility model provides an oil tank can realize the same technological effect.
Description
Technical Field
The utility model relates to a fuel pump technical field further relates to a fuel pump assembly. Furthermore, the utility model discloses still relate to an oil tank.
Background
The fuel pump assembly is arranged in the fuel tank and is used for sucking fuel from the fuel tank, pressurizing the fuel and then conveying the fuel to the fuel supply pipe, and the fuel pump assembly is matched with the fuel pressure regulator to establish certain fuel pressure.
In order to draw out the fuel oil in the oil tank as much as possible, an oil inlet of the fuel pump assembly is arranged below and close to the bottom surface of the oil tank; impurity aggregations such as particles in the fuel oil are arranged at the bottom of the fuel oil tank, the fuel oil pump assembly is provided with a filter screen for filtering impurities, the mesh of the filter screen is too large to achieve the effective filtering effect, and the mesh of the filter screen is easily blocked by large particle impurities.
For those skilled in the art, how to achieve more effective improvement of the filtering effect and avoid blockage is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fuel pump assembly utilizes and just strains the lug with the filtering of large granule impurity, reduces obstructed probability, and concrete scheme is as follows:
a fuel pump assembly comprises a top cover flange component, a shell component and a damping component, wherein the top cover flange component is installed on a fuel tank, two ends of the damping component are respectively connected to the top cover flange component and the shell component, and the damping component can move relative to the top cover flange component and/or the shell component;
the shock absorption assembly applies mutually separated elastic force to the top cover flange assembly and the shell assembly so as to press the bottom end of the shell assembly on the inner surface of the oil tank;
a circle of primary filtering lug is convexly arranged on the lower surface of the shell component and surrounds the oil inlet; the preliminary filtration lug forms a plurality of gaps that are used for circulating fluid, and fluid passes through the gap and forms the route of buckling.
Optionally, the primary filter projection is arranged at the edge of the lower surface of the shell assembly;
the primary filtering convex blocks are formed by staggering two rows of T-shaped or cross-shaped bulges in opposite directions at intervals.
Optionally, the oil filter further comprises a secondary lug circumferentially surrounding the periphery of the oil inlet, the secondary lug forms a plurality of gaps for oil to flow through by a plurality of independent split-type lugs, and the gap width of the secondary lug is smaller than that of the primary filter lug.
Optionally, the top cover flange assembly is provided with a power supply electrical interface and a liquid level sensor interface which are independent of each other;
the inner end of the power supply electrical interface is electrically connected to the fuel pump, and the inner end of the liquid level sensor interface is electrically connected to the liquid level sensor.
Optionally, the liquid level sensor employs a three-wire system sensor;
the fuel pump adopts a three-phase U/V/W alternating current brushless motor.
Optionally, the inner cavity of the housing assembly is provided with a valve seat for mounting a safety valve, the safety valve is mounted on the valve seat through a metal buckle, and the metal buckle is connected to the grounding end of the fuel pump through a lead wire and used for releasing static electricity of an oil pipeline.
Optionally, a support ring is arranged on a support of the housing assembly, the support ring is used for mounting a fuel pump, and the support rings are connected through three buffering fulcrums to isolate disturbance of the fuel pump.
Optionally, the damping assembly comprises a sliding rod and a spring, a guide through hole used for matching the sliding rod is formed in the support, and a toothed notch is formed in the inner wall of the guide through hole.
Optionally, the oil inlet of the shell assembly is provided with a stainless steel filter mesh capable of preventing static electricity;
an oil outlet of the safety valve is provided with an anti-static stainless steel filter mesh;
the side wall of the top cover flange component is provided with a rotary groove.
The utility model also provides an oil tank, including above-mentioned arbitrary fuel pump assembly.
The utility model provides a fuel pump assembly, a top cover flange component is arranged on a fuel tank, a damping component can move relative to the top cover flange component and/or a shell component, and mutually separated elasticity is applied to the top cover flange component and the shell component, so as to press the bottom end of the shell component on the inner surface of the fuel tank; a circle of primary filtering lug is convexly arranged on the lower surface of the shell component and surrounds the oil inlet; the lug formation of just straining is a plurality of gaps that are used for circulating fluid, and fluid forms the route of buckling through the gap, and fluid flows in the oil inlet again through the gap that the lug formed of just straining earlier, and the impurity of big granule is blockked by the lug of just straining, reduces the big granule impurity and causes the obstructed condition. The utility model provides an oil tank can realize the same technological effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a fuel pump assembly provided by the present invention;
FIG. 2 is a first angular schematic view of a fuel pump assembly provided by the present invention with the housing structure of the housing assembly removed;
FIG. 3 is a second perspective view of the fuel pump assembly of the present invention with the housing structure of the housing assembly removed;
FIG. 4 is a third angle schematic view of the fuel pump assembly with the housing structure of the housing assembly removed;
FIG. 5 is a partial interior elevation view of the housing assembly;
FIG. 6 is an axial view of the metal clip;
FIG. 7 is a bottom view of the housing assembly;
FIG. 8 is a bottom view of the bracket;
fig. 9 is a top view of the stent.
The figure includes:
the device comprises a top cover flange assembly 1, a power supply electrical connector 11, a liquid level sensor connector 12, a spiral groove 13, a shell assembly 2, a primary filter lug 21, a secondary lug 22, a fuel pump 23, a liquid level sensor 24, a valve seat 25, a support 26, a support ring 27, a guide through hole 28, a shock absorption assembly 3, a sliding rod 31, a spring 32, a safety valve 4 and a metal buckle 41.
Detailed Description
The core of the utility model lies in providing a fuel pump assembly utilizes and just strains the lug with the filtering of large granule impurity, reduces obstructed probability.
In order to make those skilled in the art better understand the technical solution of the present invention, the fuel pump assembly and the fuel tank of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
With reference to fig. 1 to 4, the utility model relates to a fuel pump assembly, including top cap flange subassembly 1, casing subassembly 2, damper unit 3 isotructures, top cap flange subassembly 1 is installed in the oil tank, and top cap flange subassembly 1 is fixed in the oil tank, and top cap flange subassembly 1 plays certain supporting role to whole fuel pump assembly.
The both ends of damper 3 are connected respectively in top cap flange subassembly 1 and casing subassembly 2, and damper 3 forms a whole with top cap flange subassembly 1 and casing subassembly 2 interconnect. The damper assembly 3 is movable relative to the cap flange assembly 1 and/or the housing assembly 2, the damper assembly 3 is movable relative to both the cap flange assembly 1 and the housing assembly 2, and the damper assembly 3 is also movable relative to one of the cap flange assembly 1 or the housing assembly 2. When the top cover flange assembly 1 and the shell assembly 2 move relatively, the distance between the top cover flange assembly 1 and the shell assembly 2 changes, and the top cover flange assembly 1 and the shell assembly 2 are close to or far away from each other.
Referring to fig. 7, a circle of primary filter projection 21 is convexly arranged on the lower surface of the housing component 2, the primary filter projection 21 surrounds the oil inlet, and the primary filter projection 21 circumferentially surrounds the oil inlet; the primary filtering lug 21 forms a plurality of gaps for oil to flow through, the primary filtering lug 21 protrudes downwards from the bottom surface of the shell assembly 2, the bottom surface of the shell assembly 2 and the bottom surface of the inner cavity of the oil tank form a gap for oil to flow through, and before the oil enters the oil inlet, the oil passes through the gaps of the primary filtering lug 21; fluid forms the route of buckling through the gap, and also fluid is not along the straight line flow when the gap of prefiltering lug 21, but forms and buckles, and in the structure shown in figure 7, fluid has carried out twice 90 degrees and has buckled, can play better filter effect through setting up the gap of buckling.
The utility model discloses utilizing and just straining lug 21 and forming a plurality of gaps that are used for circulating fluid, fluid forms the route of buckling through the gap, and fluid flows in the oil inlet again through the gap that just strains the lug formation earlier, and the impurity of large granule is just strained the lug and is blockked, reduces large granule impurity and causes the obstructed condition.
Referring to fig. 7, the prefilter protrusion 21 is disposed on the edge of the lower surface of the housing assembly 2, and large particles are blocked outside the projection range of the housing assembly 2 on the bottom surface of the oil tank, so that the oil can be flushed away when flowing. Specifically, the primary filter bump 21 is formed by two rows of oppositely-oriented T-shaped or cross-shaped protrusions at intervals, and with reference to fig. 7, two rows of parallelly-arranged T-shaped protrusions are arranged, the two rows of protrusions face oppositely, the finally-formed gap path is in a shape of '12579', and oil is bent twice by 90 degrees when flowing. Such an embodiment is only a preferred solution, and other arrangements are also included in the scope of the present invention.
The oil filter also comprises a secondary lug 22 which circumferentially surrounds the periphery of the oil inlet, and the ring formed by the secondary lug 22 is positioned in the ring formed by the primary filter lug 21; the secondary convex block 22 is formed by a plurality of independent split convex blocks into a plurality of gaps for oil liquid to flow through, and the width of the gap of the secondary convex block 22 is smaller than that of the gap of the primary filtering convex block 21. The slit path of the secondary bump 22 may be linear, and the present invention is not limited thereto. The primary filter lug 21 and the secondary lug 22 are matched with each other to filter particle impurities with different sizes in a grading way.
With reference to fig. 1, 2, 3 and 4, the top cover flange assembly 1 of the present invention is provided with a power supply electrical interface 11 and a liquid level sensor interface 12 which are independent of each other; adopt the disconnect-type design, do not assemble power and signal on an electric socket, effectively avoided the problem of socket inserted sheet short circuit to take place like this.
Referring to fig. 1 and 3, the inner end of the power supply electrical interface 11 is electrically connected to the fuel pump 23, and the inner end of the liquid level sensor interface 12 is electrically connected to the liquid level sensor 24. The detection signal of the liquid level sensor 24 is independent of the power supply of the fuel pump 23.
Specifically, the liquid level sensor 24 in the present invention adopts a three-wire system sensor; the fuel pump 23 employs a three-phase U/V/W AC brushless motor. Compared with the traditional two-wire system, the liquid level sensor has more accurate liquid level height indication. The fuel pump 23 adopts a three-phase U/V/W alternating current brushless motor, and has the advantages of accurate reversing, high efficiency and long service life compared with a brush fuel pump. The fuel pump is not internally provided with a specific control circuit board, so that the fuel pump can be suitable for controllers of different automobile systems and has stronger compatibility.
With reference to fig. 2 and 3, the inner cavity of the housing assembly 2 is provided with a valve seat 25 for mounting the safety valve 4, and the valve seat 25 is mounted on a bracket 26; the oil pumped out from the fuel pump 23 is divided into two paths, one path supplies oil to the engine, the other path is connected to the safety valve 4, when the oil path leading to the engine is blocked, the oil pressure is too high, and when the oil pressure exceeds the opening pressure of the safety valve 4, the safety valve 4 is opened to discharge oil.
The support 26 is provided with a safety valve 4 at the side branch of the flowline. The safety valve 4 structure adopts a straight-through pressure valve of 0.65MPa, and the general design of traditional safety valve is covered after the oil pump, because spatial position is limited, the pressure release mouth generally all is a aperture, when the oil pump flow was too high, the pressure release can appear slowly, the pressure fluctuation, the noise scheduling problem, because the existence of rubber diaphragm on the pressure valve and pressure release lifting surface, the increase of pressure release mouth aperture, can solve high flow oil pump pressure release pressure fluctuation, noise scheduling problem.
The safety valve 4 is arranged on the valve seat 25 through a metal buckle 41, at least two clamping points are arranged on the periphery of the metal buckle 41, and the safety valve 4 is pressed on the valve seat 25; the metal buckle 41 is connected to the grounding end of the fuel pump 23 through a wire to release the static electricity of the oil pipeline, and the grounding end is connected with the oil pipeline to ensure that the static electricity of the oil pipeline is effectively and timely released.
On the basis of any one of the above technical solutions and the combination thereof, the housing assembly 2 is provided with a support 26, the support 26 is a support structure, the outer wall of the support is cylindrical and can be fixed on the inner wall of the inner cavity of the housing assembly 2, with reference to fig. 8 and 9, the support 26 provided on the housing assembly 2 is provided with a support ring 27, the support ring 27 is cylindrical, the support ring 27 is used for installing the fuel pump 23, and the fuel pump 23 is fixedly installed on the support ring 27; the supporting rings 27 are connected through three buffering supporting points to isolate the disturbance of the fuel pump 23. The support ring 27 and the bracket 26 only have three connecting points, and are not connected to the bracket 26 in a circumferential circle, so that the size of the connecting points is reduced, and the effect of reducing vibration disturbance is achieved through the buffer fulcrum.
Referring to fig. 1, 2 and 3, the damping module 3 of the present invention includes two sliding rods 31 and at least two springs 32, wherein the springs 32 are sleeved on the periphery of one of the sliding rods 31, and each of the sliding rods 31 may also be sleeved with one of the springs 32.
Referring to fig. 8 and 9, the bracket 26 is provided with a guide through hole 28 for matching with the sliding rod 31, and the inner wall of the guide through hole 28 is provided with a tooth-shaped notch, which is equivalent to that the inner wall of the guide through hole 28 is provided with a plurality of tooth-shaped protrusions, so that the sliding rod 31 is guided through the tooth-shaped notch. When the slide bar 31 is bent and deformed, a smooth guiding and sliding effect can be maintained.
An oil inlet of the shell component 2 is provided with a stainless steel filter mesh which can prevent static electricity. The filter screen adopts stainless steel filter mesh, has good acid and alkali resistance and heat resistance, and has natural antistatic effect. Is suitable for diesel oil medium with high viscosity.
An oil outlet of the safety valve 4 is provided with an anti-static stainless steel filter mesh, and a stainless steel clamping ring at the tail end of the safety valve 4 is provided with a grounding piece interface, so that static electricity of an oil pipeline can be released.
The side wall of the top cover flange assembly 1 is provided with a rotary groove 13, and the rotary groove 13 can enable the top cover flange assembly 1 to be screwed into the oil tank anticlockwise.
The utility model also provides an oil tank, including foretell fuel pump assembly, can realize the same technological effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fuel pump assembly is characterized by comprising a top cover flange component (1), a shell component (2) and a damping component (3), wherein the top cover flange component (1) is installed on a fuel tank, two ends of the damping component (3) are respectively connected to the top cover flange component (1) and the shell component (2), and the damping component (3) can move relative to the top cover flange component (1) and/or the shell component (2);
the shock absorption assembly (3) applies mutually separated elastic force to the top cover flange assembly (1) and the shell assembly (2) so as to press the bottom end of the shell assembly (2) on the inner surface of an oil tank;
a circle of primary filtering lug (21) is convexly arranged on the lower surface of the shell component (2), and the primary filtering lug (21) surrounds the oil inlet; the primary filtering convex blocks (21) form a plurality of gaps for oil to flow through, and oil passes through the gaps to form a bending path.
2. A fuel pump assembly according to claim 1, wherein the preliminary filter projection (21) is provided on a lower surface edge of the housing member (2);
the primary filtering convex blocks (21) are formed by staggering two rows of T-shaped or cross-shaped bulges in opposite directions at intervals.
3. The fuel pump assembly of claim 1, further comprising a secondary projection (22) circumferentially surrounding the periphery of the oil inlet, the secondary projection (22) being formed by a plurality of separate split projections to form a plurality of gaps for oil to flow through, the gap width of the secondary projection (22) being less than the gap width of the primary filter projection (21).
4. A fuel pump assembly according to claim 1, characterized in that the top cover flange component (1) is provided with a power supply electrical interface (11) and a level sensor interface (12) that are independent of each other;
the inner end of the power supply electrical interface (11) is electrically connected to the fuel pump (23), and the inner end of the liquid level sensor interface (12) is electrically connected to the liquid level sensor (24).
5. The fuel pump assembly of claim 4, wherein the level sensor (24) is a three wire sensor;
the fuel pump (23) adopts a three-phase U/V/W alternating current brushless motor.
6. A fuel pump assembly according to claim 5, wherein the interior of the housing assembly (2) is provided with a valve seat (25) for mounting a safety valve (4), the safety valve (4) being mounted to the valve seat (25) by means of a metal clip (41), the metal clip (41) being connected by means of a wire to the earth terminal of the fuel pump (23) for discharging static electricity from the oil line.
7. The fuel pump assembly according to any one of claims 1 to 6, characterized in that the housing component (2) is provided with a bracket (26) on which a support ring (27) is arranged, the support ring (27) is used for mounting the fuel pump (23), and the support rings (27) are connected with each other through three buffering supporting points so as to isolate disturbance of the fuel pump (23).
8. The fuel pump assembly of claim 7, characterized in that the damping member (3) comprises a slide rod (31) and a spring (32), the bracket (26) is provided with a guide through hole (28) for matching the slide rod (31), and the inner wall of the guide through hole (28) is provided with a tooth-shaped notch.
9. The fuel pump assembly of claim 7, wherein the oil inlet of the housing assembly (2) is provided with a stainless steel filter mesh sheet capable of preventing static electricity;
an oil outlet of the safety valve (4) is provided with an anti-static stainless steel filter mesh;
the side wall of the top cover flange component (1) is provided with a rotary groove (13).
10. A fuel tank including a fuel pump assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223111444.1U CN218717204U (en) | 2022-11-22 | 2022-11-22 | Fuel pump assembly and fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223111444.1U CN218717204U (en) | 2022-11-22 | 2022-11-22 | Fuel pump assembly and fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717204U true CN218717204U (en) | 2023-03-24 |
Family
ID=85623195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223111444.1U Active CN218717204U (en) | 2022-11-22 | 2022-11-22 | Fuel pump assembly and fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717204U (en) |
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2022
- 2022-11-22 CN CN202223111444.1U patent/CN218717204U/en active Active
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