CN211230671U - Far-end siphon device of automobile electric fuel pump - Google Patents
Far-end siphon device of automobile electric fuel pump Download PDFInfo
- Publication number
- CN211230671U CN211230671U CN202020023391.XU CN202020023391U CN211230671U CN 211230671 U CN211230671 U CN 211230671U CN 202020023391 U CN202020023391 U CN 202020023391U CN 211230671 U CN211230671 U CN 211230671U
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- China
- Prior art keywords
- pipeline
- venturi
- fuel
- driving
- oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000446 fuel Substances 0.000 title claims abstract description 67
- 230000000903 blocking effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 32
- 239000000295 fuel oil Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model provides a remote siphon device of an automobile electric fuel pump, which is used for absorbing oil at the remote end in an oil tank, and comprises a baffle cover, a venturi lower cover, a venturi upper cover, a venturi and a throat, wherein the baffle cover is an L-shaped pipeline; the venturi tube lower cover comprises an upper cover plate, a far-end oil inlet pipeline and a flow pipeline, and one end of the baffle cover is connected with one end of the flow pipeline; the venturi tube upper cover comprises a lower cover plate, a tapered pipeline and a connecting pipeline, the lower cover plate is connected with the upper cover plate, and the tapered pipeline is inserted into the other end of the flow pipeline; the venturi tube comprises a driving oil inlet pipeline, a driving flow channel and an oil outlet pipeline, the driving oil inlet pipeline is connected with the pump core driving tube, and the oil outlet pipeline is inserted and connected with the connecting pipeline. The utility model discloses the ability of distal end siphon only needs about 200ML to the fuel storage capacity in the bucket, just can reach the ability of distal end siphon, and fuel feeding stability is good.
Description
Technical Field
The utility model relates to a fuel is supplied with the field, specifically relates to a high efficiency, is used in the distal end siphon device of electronic fuel pump of car.
Background
The electric fuel pump assembly is arranged on the fuel tank and has the function of pipeline connection in the fuel supply system. The gasoline in the oil tank is conveyed into the fuel oil pipeline through the filter screen and the oil outlet pipe by the suction force generated when the built-in gasoline pump works, so that the consumption of an engine is provided. In the fuel supply system, fuel is firstly filtered by a primary filter screen to remove impurities in the fuel, then the fuel is pumped by a pump core, one part of the fuel is supplied to the requirement of an engine through a main pipeline, and the other part of the fuel returns the shunted fuel to a fuel tank through a pressure valve.
The remote siphon device is assembled in the electric fuel pump barrel, and oil far away from the fuel pump is sucked into the electric fuel pump barrel in the elongated or saddle-shaped oil tank. Because the fuel oil tank has different structures, part of fuel oil is not around the electric fuel pump, and in order to fully utilize the fuel oil, the remote siphon capacity is needed to suck the remote fuel oil into the fuel pump barrel at a certain speed and supply the remote fuel oil to the engine for running through the electric fuel pump.
The prior art distal siphon device has the following disadvantages in practical use:
influence of fuel oil in the fuel oil pump barrel: the remote siphon capacity requires a certain requirement on the fuel storage capacity in the barrel to be more than 500ML, and the remote siphon capacity is relatively reduced when the fuel in the barrel is less than 500ML at the initial start.
(ii) influence of siphon capacity rate: the electric fuel pump has a certain requirement on the fuel amount of the remote siphon per hour when working, and the fuel amount of the remote siphon per hour can be relatively weakened under the condition of providing the same driving flow rate.
Thus, the remote siphoning device of the prior art fuel pump also has a place to lift.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing an efficient distal end siphon device to solve prior art's problem.
According to one aspect of the utility model, a far-end siphon device of an automobile electric fuel pump is provided for the far-end oil absorption in an oil tank, the far-end siphon device comprises a blocking cover, a venturi lower cover, a venturi upper cover, a venturi and a throat, the blocking cover, the venturi lower cover, the venturi upper cover, the venturi and the throat are connected in sequence, and the blocking cover is an L-shaped pipeline; the venturi tube lower cover comprises an upper cover plate, a far-end oil inlet pipeline and a flow pipeline, and one end of the baffle cover is connected with one end of the flow pipeline; the venturi tube upper cover comprises a lower cover plate, a tapered pipeline and a connecting pipeline, the lower cover plate is connected with the upper cover plate, and the tapered pipeline is inserted into the other end of the flow pipeline; the venturi tube comprises a driving oil inlet pipeline, a driving flow channel and an oil outlet pipeline, the driving oil inlet pipeline, the driving flow channel and the oil outlet pipeline are sequentially connected, the driving oil inlet pipeline is connected with the pump core driving tube, and the oil outlet pipeline is connected with the connecting pipeline in an inserting mode.
Preferably, the distal siphon device further comprises an O-ring, and the O-ring is sleeved and connected with the oil outlet pipeline.
Preferably, the distal siphon device further comprises a steel ball, and the steel ball is arranged in the driving flow passage.
The purpose of this application is: design a section and have efficient distal end siphon device more, promote distal end siphon ability efficiency, fuel pump barrel's fuel volume when having reduced initial start, under equal pump core drive flow, compensate the not enough condition of siphon ability, increase fuel pump fuel feeding stability.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the remote siphon capacity of the utility model can reach the remote siphon capacity only by about 200ML for the fuel storage capacity in the barrel, and the fuel supply stability is good;
2. the utility model discloses every hour improves the fuel oil volume of distal end siphon by a wide margin under the condition of equal drive flow, and is efficient.
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
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic external view of a remote siphon device according to the present application;
FIG. 2 is a cut-away schematic view of the distal siphon device of the present application;
FIG. 3 is a exploded view of the construction of the distal siphon device of the present application;
FIG. 4 is a schematic view of the drive flow path of the present application;
fig. 5 is a schematic view of the siphon flow path of the present application.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Referring to fig. 1, 2 and 3, a remote siphon device for an electric fuel pump of an automobile is used for sucking oil from a remote end in an oil tank, and comprises a blocking cover 1, a venturi lower cover 2, a venturi upper cover 3, a venturi 5 and a throat 7, wherein the blocking cover 1, the venturi lower cover 2, the venturi upper cover 3, the venturi 5 and the throat 7 are connected in sequence.
As shown in fig. 1 and 3, the blocking cover 1 is an L-shaped pipeline; the venturi tube lower cover 2 comprises an upper cover plate 21, a far-end oil inlet pipe 22 and a flow pipe 23, one end of the blocking cover 1 is connected with one end of the flow pipe 23, namely one end of the flow pipe 23 from which fuel flows out, as shown in the figure, two positioning salient points are arranged on the outer surface of the flow pipe 23, positioning grooves are formed in the corresponding positions of the blocking cover 1, when the positioning salient points are reached, the upper end surface of the flow pipe 23 is positioned at the outlet height of the L-shaped pipe of the blocking cover 1, and the fuel is convenient to spray outwards; from the flow duct 23, the fuel flows into the cover 1 and is ejected at the other outlet of the L-shaped duct into the fuel pump barrel (not shown).
In addition, the venturi upper cover 3 includes a lower cover plate 31, a tapered pipe 32 and a connecting pipe 33, the lower cover plate 31 is connected with the upper cover plate 21 to form a space in which fuel flows; the tapered pipe 32 is inserted into the other end of the flow pipe 23, as shown in fig. 2, the fuel from the tapered pipe 32 is directly injected into the flow pipe 23, an attractive force is formed at the outer root, i.e. the outer lower end, of the tapered pipe 32, the faster the fuel injection speed, the greater the attractive force, the attractive force passes through the space formed by the lower cover plate 31 and the upper cover plate 21, and the fuel in the far-end fuel inlet pipe 22 is sucked in to drive the far-end fuel to enter.
In addition, as shown in fig. 1 and 3, the venturi tube 5 includes a driving oil inlet pipe 51, a driving flow passage 52 and an oil outlet pipe 53, the driving oil inlet pipe 51, the driving flow passage 52 and the oil outlet pipe 53 are connected in sequence, the driving oil inlet pipe 51 is connected to a pump core driving pipe (not shown), a part of the fuel pumped out by a pump core (not shown) enters the pump core driving pipe and then enters the venturi tube 5 from the driving oil inlet pipe 51, the oil outlet pipe 53 is inserted into and connected to the connecting pipe 33, as shown in fig. 2, a port of the oil outlet pipe 53 abuts against a lower side of the tapered pipe 32, so that the fuel sprayed from the oil outlet pipe 53 directly enters the tapered pipe 32, and the suction force can be generated to the maximum extent.
Referring to fig. 2 and 3, the distal siphon device of the present application further includes an O-ring 4, the O-ring 4 is sleeved on and connected to the oil outlet pipe 53, and after assembly, the O-ring 4 is press-connected between the outer wall of the oil outlet pipe 53 and the inner wall of the connecting pipe 33 to form a sealing state, so as to prevent the suction force from being influenced by the fuel leakage. In addition, the distal siphon device of the present application further comprises a steel ball 6, wherein the steel ball 6 is disposed in the driving flow passage 52, and is assembled at another outlet of the driving flow passage 52, which is not acted in the present application, and is closed by the steel ball 6.
The utility model provides a distal end siphon device installs in the fuel pump bucket, produces the venturi effect with pump core drive tube flow through venturi tube upper and lower lid and siphons the distal end fuel. The principle of the venturi is to make the fluid from thick to thin to accelerate the flow rate of the fluid, so that the fluid forms a vacuum zone at the rear side of the outlet of the venturi to generate attraction.
The remote siphon working principle of the application is as follows: the far-end siphon device is assembled in the electric fuel pump barrel and is in sealing connection with the fuel pump core driving pipe and the far-end oil pipe through oil pipes, fuel at the far-end outside is sucked in through a venturi tube in the far-end siphon device through the driving flow of the fuel pump core driving pipe, and the fuel is sprayed into the electric fuel pump barrel through the pipeline and a blocking cover of the far-end siphon device. Referring to fig. 4, the driving flow path is schematically shown, wherein fuel enters from the driving oil inlet pipe 51, passes through the driving flow passage 52, passes through the oil outlet pipe 53, enters the tapered pipe 32, generates suction force when flowing out of the tapered pipe 32, and then flows through the flow pipe 23 and is injected into the fuel pump barrel through the baffle cover 1; referring to fig. 5, a siphon flow path is shown, when the fuel flows out of the tapered pipe 32, the fuel is attracted to drive the fuel at the far end to enter from the far end fuel inlet pipe 22, and is injected into the fuel pump barrel through the baffle cover 1 via the flow pipe 23.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the remote siphon capacity of the utility model can reach the remote siphon capacity only by about 200ML for the fuel storage capacity in the barrel, and the fuel supply stability is good;
2. the utility model discloses every hour improves the fuel oil volume of distal end siphon by a wide margin under the condition of equal drive flow, and is efficient.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (3)
1. A far-end siphon device of an automobile electric fuel pump is used for sucking oil at the far end in an oil tank and is characterized in that the far-end siphon device comprises a blocking cover, a venturi lower cover, a venturi upper cover, a venturi and a throat, wherein the blocking cover, the venturi lower cover, the venturi upper cover, the venturi and the throat are sequentially connected, and the blocking cover is an L-shaped pipeline; the venturi tube lower cover comprises an upper cover plate, a far-end oil inlet pipeline and a flow pipeline, and one end of the baffle cover is connected with one end of the flow pipeline; the venturi tube upper cover comprises a lower cover plate, a tapered pipeline and a connecting pipeline, the lower cover plate is connected with the upper cover plate, and the tapered pipeline is inserted into the other end of the flow pipeline; the venturi tube comprises a driving oil inlet pipeline, a driving flow channel and an oil outlet pipeline, the driving oil inlet pipeline, the driving flow channel and the oil outlet pipeline are sequentially connected, the driving oil inlet pipeline is connected with the pump core driving tube, and the oil outlet pipeline is connected with the connecting pipeline in an inserting mode.
2. The remote siphon device according to claim 1, further comprising an O-ring, wherein the O-ring is sleeved on the outlet pipe.
3. The distal siphon device of claim 2, further comprising a steel ball disposed in the drive flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023391.XU CN211230671U (en) | 2020-01-07 | 2020-01-07 | Far-end siphon device of automobile electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023391.XU CN211230671U (en) | 2020-01-07 | 2020-01-07 | Far-end siphon device of automobile electric fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211230671U true CN211230671U (en) | 2020-08-11 |
Family
ID=71941503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020023391.XU Expired - Fee Related CN211230671U (en) | 2020-01-07 | 2020-01-07 | Far-end siphon device of automobile electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211230671U (en) |
-
2020
- 2020-01-07 CN CN202020023391.XU patent/CN211230671U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |