CN206608259U - Jet pump - Google Patents
Jet pump Download PDFInfo
- Publication number
- CN206608259U CN206608259U CN201720355382.9U CN201720355382U CN206608259U CN 206608259 U CN206608259 U CN 206608259U CN 201720355382 U CN201720355382 U CN 201720355382U CN 206608259 U CN206608259 U CN 206608259U
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- CN
- China
- Prior art keywords
- nozzle
- jet pump
- muscle
- cavity
- passage
- Prior art date
- 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.)
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Abstract
The utility model is related to jet pump, it has driving fluid passage, the nozzle positioned at driving fluid passage end, cavity, the suction fluid passage and hybrid channel being connected with cavity, the nozzle is within the cavity, suck fluid passage and be located at nozzle side and relative with nozzle end, muscle is provided with suction fluid passage and the junction of cavity, and the muscle is located at the centre position of suction fluid passage.Even if the flow for sucking fuel oil is very big, because inhalation flow is stopped by muscle, also the driving flow projected from nozzle will not be together flushed to mixing tube side, it is ensured that mixing tube has higher valid circulation area, so that the jet pump has higher oil suction efficiency.
Description
Technical field
The utility model is related to jet pump, especially for use in the jet pump in vehicle fuel system.
Background technology
Jet pump is also referred to as jet pump, is a kind of come injection or to be taken out by the use of the liquid with certain pressure as hydraulic fluid
Inhale the device with lower pressure or no pressure liquid.Jet pump is widely used in multiple fluid equipment.For example, it can be with
In the fuel service system of automobile, so as to the fuel oil of injection tank bottoms.
In the application scenario of automotive oil tank, jet pump generally with the oil pump phase for fuel from fuel tank to be pumped to engine
Coordinate.Specifically, jet pump is arranged in the bottom of fuel tank, receives the pressurization fuel oil from oil pump branch road or return line to make
For hydraulic fluid, and the fuel oil of tank bottoms is pumped to the oil storage barrel where oil pump or oil pump, thus when fuel tank intermediate fuel oil
Liquid level that is, the fuel oil can be also pumped by oil pump during very low oil level.However, existing jet pump, when the flow of suction fuel oil
When very big, the driving flow projected from nozzle can be together flushed to mixing tube side by inhalation flow, cause mixing tube opposite side
The flow velocity of fuel oil is very low, so that oil suction efficiency is reduced.Therefore, existing jet pump haves the shortcomings that oil suction is less efficient.
The content of the invention
The purpose of this utility model is to provide a kind of jet pump, and it has higher oil suction efficiency.
A kind of jet pump that the utility model is provided, it has driving fluid passage, positioned at driving fluid passage end
Nozzle, cavity, the suction fluid passage being connected with cavity and hybrid channel, the nozzle are within the cavity, and suction fluid leads to
Road is located at nozzle side and relative with nozzle end, and muscle is provided with suction fluid passage and the junction of cavity, and the muscle is located at
Suck the centre position of fluid passage.
It is preferred that the height of the muscle is more than the internal diameter of suction fluid passage.
It is preferred that the width of the muscle is the 1/4 to 1/3 of suction fluid channel internal diameter.
It is preferred that the jet pump also includes cover of driver, is fixed on the nozzle housing of cover of driver and is fixed on outside nozzle
The mixing shell of shell, the cover of driver and nozzle housing limit driving fluid passage jointly, and the nozzle is fixed on outside nozzle
Shell, the cavity, suction fluid passage and hybrid channel are formed at mixing shell.
It is preferred that the cavity of the mixing shell has a through-plane, the through-plane presses on the mating surface of nozzle housing,
And nozzle housing has the first fixed part that extension in cavity is faced from cooperation, there is nozzle main body and autonomous agent to extend what is formed
The second fixed part coordinated with the first fixed part.
It is preferred that the muscle presses on the second fixed part.
It is preferred that being provided with the second muscle at the cavity inner wall position relative with muscle, second muscle equally presses on nozzle
The second fixed part.
It is preferred that the cover of driver has first passage and the second channel being connected with the first passage, second channel
It is wider than first passage to be additionally provided with check valve so as to be formed between first passage and second channel in a stage portion, the jet pump,
The check valve includes seal and spring, and spring one end is fixed in nozzle housing, and the other end is fixed with seal and will can be somebody's turn to do
Seal presses on the stage portion of cover of driver to seal first passage, and between the seal and the perisporium of second channel
With certain interval.
It is preferred that the nozzle housing is additionally provided with the clamping part for being installed on the jet pump in oil storage barrel.
Compared with prior art, due to being provided with muscle in the junction of suction fluid passage and cavity, and the muscle is located at suction
The centre position of fluid passage,, also will not be by because inhalation flow is stopped by muscle even if the flow of suction fuel oil is very big
The driving flow projected from nozzle is together flushed to mixing tube side so that the fuel flow rate of driving flow both sides is more uniform, and
It will not be influenceed and be reduced by inhalation flow, so that the jet pump has higher oil suction efficiency.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the stereogram of the utility model jet pump；
Fig. 2 is the A-A sectional views of Fig. 1 jet pumps；
Fig. 3 is the B-B sectional views of Fig. 2 jet pumps；
Fig. 4 is the exploded view of the utility model jet pump.
Embodiment
Fig. 1 to Fig. 4 is referred to, the jet pump 1 that the utility model is provided has driving fluid passage 10, positioned at driving fluid
Nozzle 2, cavity 51, the suction fluid passage 52 being connected with cavity 51, hybrid channel 53 and the diffusion admittance of the end of passage 10
57, the nozzle 2 is located in cavity 51, and suction fluid passage 52 is located at the side of nozzle 2 and relative with the end of nozzle 2, in suction
Fluid passage 52 and the junction of cavity 51 are provided with muscle 54, and the muscle 54 is located at the centre position of suction fluid passage 52.Due to
Muscle 54 is provided with the junction of suction fluid passage 52 and cavity 51, and the muscle 54 is located at the interposition of suction fluid passage 52
Put, even if the flow of suction fuel oil is very big, due to stop of the inhalation flow by muscle 54, will will not also be projected from nozzle 2
Driving flow is together flushed to the side of cavity 51 so that the fuel flow rate of driving flow both sides is more uniform, without because by
The influence of inhalation flow and reduce so that the jet pump 1 have higher oil suction efficiency.The highly preferred of muscle 54 be
More than the internal diameter of suction fluid passage 52, so as to effectively stop inhalation flow.The width of the muscle 54 is preferably suction
The 1/4 to 1/3 of the internal diameter of fluid passage 52, inhalation flow can be stopped to a certain degree, inhalation flow will not be caused too small again.
The jet pump 1 also includes cover of driver 3, is fixed on the nozzle housing 4 of cover of driver 3 and is fixed on nozzle housing 4
Mixing shell 5, the cover of driver 3 and nozzle housing 4 limit driving fluid passage 10 jointly, and the nozzle 2 is fixed on spray
Mouth shell 4, the cavity 51, suction fluid passage 52 and hybrid channel 53 are formed at mixing shell 5.The mixing shell 5
Cavity 51 has a through-plane 511, and the through-plane 511 presses on the mating surface 41 of nozzle housing 4, and nozzle housing 4 has certainly
Mating surface 41 towards extension in cavity 51 the first fixed part 42, nozzle 2 have that main body 21 and the extension of autonomous agent 21 formed with the
The second fixed part 22 that one fixed part 42 coordinates.The muscle 54 presses on the second fixed part 22 of nozzle 2, so as to avoid spray
Mouth 2 comes off.The second muscle 55 is provided with the inwall of cavity 51 position relative with muscle 54, second muscle 55 equally presses on nozzle
2 the second fixed part 22, second muscle 55 and the collective effect of muscle 54 are in nozzle 2, so as to more effectively support nozzle and avoid spray
Mouth 2 comes off in the course of the work.
In the present embodiment, the cover of driver 3 has the connection being connected with the pump core or pipeline (not shown) of fuel pump
Passage 31, the first passage 32 perpendicular to the interface channel 31 and the second channel 33 being connected with the first passage 32, it is described to drive
Dynamic fluid passage 10 is including in interface channel 31, first passage 32, second channel 33 and the end of cover of driver 3 and nozzle housing 4
Wall, which encloses, sets the third channel 44 to be formed, second channel 33 it is wider than first passage 32 so as to first passage 32 and second channel 33 it
Between form a stage portion 34, be additionally provided with check valve 6 in the jet pump 1, the check valve 6 include seal 61 and spring 62, spring
62 one end are fixed in nozzle housing 4, and the other end is fixed with seal 61 and the seal 61 can be pressed on into cover of driver 3
Stage portion 34 has certain interval so as to which first passage 32 be sealed, and between the seal 61 and the perisporium of second channel 33
35.When seal 61 is by oil pressure from fuel pump, the extrusion spring 62 of seal 61 simultaneously produces displacement, and fuel oil is from seal
The gap formed between 61 and cover of driver 3 flows through gap 35, then flows to nozzle 2.It is preferred that the nozzle housing 4 is also set
Have the clamping part 45 for the jet pump 1 being installed in oil storage barrel.
Although the utility model is disclosed as above with preferred embodiment, the utility model is not limited to this.Any
Art personnel, are not departing from the various variations made in spirit and scope of the present utility model and are changing, all should include this
In the protection domain of utility model, therefore protection domain of the present utility model should be defined by claim limited range.
Claims (9)
1. a kind of jet pump, its have driving fluid passage, the nozzle positioned at driving fluid passage end, cavity, with cavity phase
The suction fluid passage of connection and hybrid channel, the nozzle are within the cavity, suction fluid passage be located at nozzle side and with
Nozzle end is relative, it is characterised in that muscle is provided with suction fluid passage and the junction of cavity, and the muscle is located at suction fluid
The centre position of passage.
2. jet pump according to claim 1, it is characterised in that the height of the muscle is more than the interior of suction fluid passage
Footpath.
3. jet pump according to claim 1, it is characterised in that the width of the muscle is the 1/ of suction fluid channel internal diameter
4 to 1/3.
4. jet pump according to claim 1, it is characterised in that the jet pump also includes cover of driver, is fixed on driving
The nozzle housing of shell and the mixing shell for being fixed on nozzle housing, the cover of driver and nozzle housing limit driving stream jointly
Body passage, the nozzle is fixed on nozzle housing, and the cavity, suction fluid passage and hybrid channel are formed at mixing shell.
5. jet pump according to claim 4, it is characterised in that the cavity of the mixing shell has a through-plane, should
Through-plane presses on the mating surface of nozzle housing, and nozzle housing has the first fixed part that extension in cavity is faced from cooperation,
There is nozzle main body and autonomous agent to extend the second fixed part coordinated with the first fixed part to be formed.
6. jet pump according to claim 5, it is characterised in that the muscle presses on the second fixed part.
7. jet pump according to claim 6, it is characterised in that provided with the at the cavity inner wall position relative with muscle
Two muscle, second muscle equally presses on the second fixed part of nozzle.
8. the jet pump according to any one of claim 4 to 7, it is characterised in that the cover of driver has first passage
And the second channel being connected with the first passage, second channel is wider than first passage so as between first passage and second channel
A stage portion is formed, check valve is additionally provided with the jet pump, the check valve includes seal and spring, spring one end is fixed on spray
In mouth shell, the other end and seal are fixed and the seal can be pressed on to the stage portion of cover of driver so that by first passage
Sealing, and there is certain interval between the seal and the perisporium of second channel.
9. jet pump according to claim 4, it is characterised in that the nozzle housing is additionally provided with for the jet pump to be pacified
Loaded on the clamping part in oil storage barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720355382.9U CN206608259U (en) | 2017-04-06 | 2017-04-06 | Jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720355382.9U CN206608259U (en) | 2017-04-06 | 2017-04-06 | Jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608259U true CN206608259U (en) | 2017-11-03 |
Family
ID=60174138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720355382.9U Active CN206608259U (en) | 2017-04-06 | 2017-04-06 | Jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812361A (en) * | 2017-11-20 | 2019-05-28 | 罗伯特·博世有限公司 | Motor vehicle fuel pump module including improved jet stream pump assembly |
| CN114542343A (en) * | 2020-11-26 | 2022-05-27 | 纬湃汽车电子(芜湖)有限公司 | Double-ejector pump, single-ejector pump and fuel supply system |
-
2017
- 2017-04-06 CN CN201720355382.9U patent/CN206608259U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812361A (en) * | 2017-11-20 | 2019-05-28 | 罗伯特·博世有限公司 | Motor vehicle fuel pump module including improved jet stream pump assembly |
| CN109812361B (en) * | 2017-11-20 | 2022-05-27 | 罗伯特·博世有限公司 | Vehicle fuel pump module including improved jet pump assembly |
| CN114542343A (en) * | 2020-11-26 | 2022-05-27 | 纬湃汽车电子(芜湖)有限公司 | Double-ejector pump, single-ejector pump and fuel supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee after: WeiPai automotive electronics (Wuhu) Co., Ltd Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee before: Continental automotive electronics (Wuhu) Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |