CN206770296U - Jet pump and the fuel service system including the jet pump - Google Patents
Jet pump and the fuel service system including the jet pump Download PDFInfo
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- CN206770296U CN206770296U CN201720296418.0U CN201720296418U CN206770296U CN 206770296 U CN206770296 U CN 206770296U CN 201720296418 U CN201720296418 U CN 201720296418U CN 206770296 U CN206770296 U CN 206770296U
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- jet pump
- oil
- fuel
- fuel tank
- pump
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Abstract
The utility model provides a kind of jet pump (1), wherein the jet pump includes pressure seal region (2), propulsive medium path (3) close to the pressure seal region (2), propulsive jet nozzle (4), suction passage (5) and the mixing section (6) and diffusion section (7) for being located at suction passage (5) downstream along fuel liquid flow direction, wherein, the pressure seal region (2) includes closure member (2a) and the holding seat (2b) for keeping the closure member, the holding seat (2b) has stopper section, to prevent the closure member because what is entered from the propulsive medium path (3) has the function that the driving liquid of certain pressure and shift.The utility model further relates to the fuel service system for including above-mentioned jet pump.
Description
Technical field
It the utility model is related to a kind of jet pump, more particularly to the jet pump in vehicle fuel supply system.This reality
With the new fuel service system for further relating to include the jet pump.
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.By liquid flow direction, it generally includes hydraulic fluid entrance and injection
Mouth, treat injection fluid intake, the mixing of Venturi tube-type spreader structure and diffuser and outlet, wherein hydraulic fluid entrance
Receive the hydraulic fluid with pressure and spray it from jet, the hydraulic fluid sprayed makes jet be formed about very
It is empty so that lower pressure or no pressure treat injection liquid by from treating that injection fluid intake sucks, the liquid sucked and institute
The hydraulic fluid of ejection enters mixing and diffuser together, mixes and is sprayed after pressing from outlet.Jet pump is widely applied
In multiple fluid equipment.For example, it can be used 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.Especially, in certain form of automobile, such as 4 wheel driven type
In automobile, fuel tank is typically the saddle-shaped oil tank for including main fuel tank and auxiliary fuel tank.For this fuel tank, generally in main fuel tank and pair
Jet pump is arranged in fuel tank.
However, fabrication hole be present at propulsive medium path typically by injection molding in existing jet pump, in order to
Pressure in the system of jet pump is kept, closure member is provided with fabrication hole to form pressure seal region, closure member mainly passes through
The frictional force of itself and fabrication hole hole wall is kept.However, because the operating pressure of product is higher, and prolonged Fluid pressure punching
Brush, closure member displacement is likely to result in, so as to be unable to maintain that the pressure in system.
The content of the invention
For problems of the prior art, the purpose of this utility model is to provide a kind of jet pump, its by positioned at
The holding structure of the closure member in pressure seal region is improved so that holding structure can apply to closure member avoids closure member from moving
The active force in addition to frictional retention forces of position, so as to significantly improve the ability that pressure is born in pressure seal region.
Therefore, the utility model provides a kind of jet pump, it includes pressure seal region, close to the pressure seal region
Propulsive medium path, propulsive jet nozzle, suction passage and it is located at the suction passage downstream along fuel liquid flow direction
Mixing section and diffusion section, wherein, the pressure seal region includes closure member and the holding seat for keeping the closure member,
The holding seat tool has stopper section, to prevent the driving liquid with certain pressure that the closure member is entered by the propulsive medium path
Body is acted on and shifted.The stopper section can provide closure member the resistance of the pressure reversal with carrying out self-driven liquid, so as to
Closure member is prevented to be shifted in the case where prolonged fluid pressure washes away.
In a preferred scheme, closure member is configured to spherical partses such as steel ball, and keeps the stop portion of seat to be rushed by heat
Swaging camber structure, to be sealingly engaged with the spherical partses.
In the utility model, the pressure of the driving fluid is, for example, 4-7bar.
According to a scheme of the present utility model, the propulsive jet nozzle, the mixing section and the diffusion section
Along straight line configuration.
In addition, the utility model also provides a kind of fuel service system, including for accommodating the fuel tank of fuel oil, in the fuel tank
Oil pump and the above-mentioned jet pump associated with the oil pump are laid, wherein the fuel tank is the horse for including main fuel tank and auxiliary fuel tank
Saddle tank.
In the utility model, oil storage barrel is provided with the main fuel tank, the oil pump is placed in the oil storage barrel, and this draws
The bottom that pump is arranged on the oil storage barrel is penetrated, suitable for the fuel oil of the main fuel tank bottom space is introduced into the oil storage barrel.
According to a scheme of the present utility model, additional jet pump is provided with the oil storage barrel, for by the auxiliary fuel tank
The fuel oil of bottom introduces the oil storage barrel.
According to a scheme of the present utility model, additional jet pump is provided with the bottom of the auxiliary fuel tank, for by the pair
The fuel oil of tank bottoms introduces the oil storage barrel.
Brief description of the drawings
The utility model is more fully described below with reference to schematical accompanying drawing.Accompanying drawing and corresponding embodiment be only for
The purpose of explanation, not for limitation the utility model.Wherein：
Fig. 1 is the sectional view according to the jet pump of one embodiment of the present utility model；
Fig. 2 is the schematic diagram for including the fuel service system according to jet pump of the present utility model.
Embodiment
Exemplary embodiment of the present utility model is described below in detail.Exemplary implementation shown in described below and accompanying drawing
Example is intended to instruct principle of the present utility model, enables those skilled in the art in some varying environments and for some differences
Application implementation and use the utility model.Therefore, exemplary embodiment is not intended to and should not be considered as to this practicality
The restricted description of novel protected scope.On the contrary, the scope of protection of the utility model is limited to the appended claims.
Fig. 1 shows the sectional view of one embodiment according to jet pump 1 of the present utility model.It can be seen that
The jet pump includes pressure seal region 2, close to the propulsive medium path 3 in the pressure seal region 2, propulsive jet nozzle 4, inhales
Enter path 5 and be located at the mixing section 6 and diffusion section 7 in the downstream of suction passage 5 along fuel liquid flow direction, wherein,
The pressure seal region 2 includes the closure member 2a and holding seat 2b for keeping the closure member.In this embodiment, the closing
Part is spherical partses such as steel ball.Also, it can be seen that the propulsive jet nozzle 4, the mixing section 6 and described
Diffusion section 7 is along straight line configuration.
It will be appreciated by those skilled in the art that because jet pump is generally made up of injection molding, lead to close to propulsive medium
The position on road 3 generally there are the fabrication hole with propulsive jet nozzle 4 and the fluid communication of propulsive medium path 5.In order to maintain to draw
The operating pressure penetrated inside pump, fabrication hole need to be closed.Existing jet pump is that steel ball is pressed directly into fabrication hole, is led to
Frictional force is crossed to be maintained in fabrication hole.Technique hole wall is equivalent to holding seat.However, because the operating pressure of product is higher, such as
Up to 4-7bar, after prolonged Fluid pressure is washed away, steel ball can be caused to remove fabrication hole, lead to not the pressure in maintenance system
Power.
In order to overcome above-mentioned technical problem, inventor of the present utility model is expected by closure member such as steel ball press-in technique
Kong Zhonghou, drop stamping is carried out to the part of fabrication hole both sides, that is, forms the stopper section for the curved structure for keeping seat 2b, so that
Obtain the steel ball to be sealingly engaged with stop portion, form pressure seal region 2.In injection pump work, conveying is provided by fuel pump
A part for liquid is used for the driving of jet pump, and the driving liquid with certain pressure enters via propulsive medium path 3 to be promoted
The jet flow of jet nozzle 4, pressure seal region 2 are used for the pressure for keeping the front end of propulsive jet nozzle 4, and hydraulic fluid is penetrated via propulsion
Flow nozzle 4 sprays, and swiftly flowing liquid produces negative pressure, and the liquid in fuel tank is sucked via suction passage 5, and via propulsion
Driving liquid that jet nozzle 4 sprays and via the liquid that suction passage 5 sucks after the mixing of mixing section 6 from diffusion section 7
Outflow.By setting stopper section, the stop portion applies the pressure with the hydraulic fluid from propulsive medium path 3 to closure member 2a
Opposite effect power so that the ability that pressure seal region 2 can bear pressure rises to original about 200%.
Fig. 2 shows the schematic diagram of the fuel service system of jet pump 1 in Fig. 1.It can be seen that the structure of fuel tank 100
The saddle-shaped oil tank for including main fuel tank 101 and auxiliary fuel tank 102 is caused, wherein, oil storage barrel 300 can be disposed with main fuel tank 101,
Oil pump 200 can be then laid in the oil storage barrel.At work, it is sufficient when containing in fuel tank 100, especially main fuel tank 101
During fuel oil, the fuel oil can enter in oil storage barrel 300, be sucked by oil pump 200 via filter screen (not shown) and via fuel feeding
The supply engine (not shown) of pipeline 400.
In order to be remained to when the oil level in main fuel tank 101 is relatively low to engine pumping fuel, at the bottom of oil storage barrel 300
Jet pump 1 is set.Or jet pump 1 can also be arranged on the outside of oil storage barrel 300.The suction passage 5 of the jet pump 1 can be with
Main fuel tank bottom space outside towards oil storage barrel 300, and the outlet in the downstream of diffuser section 7 of jet pump 1 is passed through oil storage barrel
In 300, or lead to oil pump 200, so as to which the fuel oil of low liquid level in main fuel tank 101 is ejected into oil storage barrel 300 or oil pump 200
Place, so that the fuel oil can be pumped to engine.
In embodiment shown in figure 2, additional jet pump 1a is provided with oil storage barrel 300, wherein, jet pump 1a's
Suction passage 5 leads to the bottom of auxiliary fuel tank 102, and the outlet in jet pump 1a diffuser section downstream is passed through in oil storage barrel 300,
For the fuel oil of the bottom of auxiliary fuel tank 102 to be introduced into the oil storage barrel.
Alternatively, the bottom of auxiliary fuel tank 102 can also be provided with additional jet pump (not shown).This is additional
The oil storage barrel 300 that the outlet of jet pump can lead in main fuel tank 101, to allow low liquid level in the auxiliary fuel tank 102 of oil pump 200
Fuel pump be sent into oil storage barrel.In the embodiment shown in Figure 2, jet pump 1 and 1a propulsive medium path can pass through respectively
Pipeline and the output end for being connected to oil pump 200, to regard the fuel oil to be pressurizeed by oil pump 200 as its hydraulic fluid.
It should be pointed out that explanation above is only exemplary, those skilled in the art can be according to the above description to this reality
Various modifications and variations are made with new embodiment, these modifications and variations are within the scope of protection of the utility model.
Claims (8)
1. a kind of jet pump (1), it is characterised in that the jet pump includes pressure seal region (2), close to the pressure seal region
(2) propulsive medium path (3), propulsive jet nozzle (4), suction passage (5) and along fuel liquid flow direction positioned at should
The mixing section (6) and diffusion section (7) in suction passage (5) downstream, wherein, the pressure seal region (2) includes closure member
(2a) and the holding seat (2b) for keeping the closure member, the holding seat (2b) has stopper section, to prevent the closure member
Because what is entered from the propulsive medium path (3) has the function that the driving fluid of certain pressure and shifts.
2. jet pump (1) according to claim 1, it is characterised in that the closure member (2a) is spherical partses, the holding seat
The stopper section of (2b) by it is hot press-formed be arcuate structure, with the spherical partses be sealingly engaged.
3. jet pump (1) according to claim 1 or 2, it is characterised in that the pressure of the driving fluid is 4-7bar.
4. jet pump (1) according to claim 1 or 2, it is characterised in that the propulsive jet nozzle (4), the mixing
Section (6) and the diffusion section (7) are along straight line configuration.
5. a kind of fuel service system, including for accommodating the fuel tank (100) of fuel oil, laid in the fuel tank oil pump (200) with
And the jet pump (1) according to claim 1-4 associated with the oil pump, the fuel tank (100) is to include main fuel tank
(101) and auxiliary fuel tank (102) saddle-shaped oil tank.
6. fuel system according to claim 5, it is characterised in that be provided with oil storage in the main fuel tank (101)
Bucket (300), the oil pump (200) are placed in the oil storage barrel, and the jet pump (1) is arranged on the bottom of the oil storage barrel, suitable for inciting somebody to action
The fuel oil of main fuel tank (101) bottom space is introduced into the oil storage barrel.
7. fuel system according to claim 6, it is characterised in that be provided with what is added in the oil storage barrel (300)
Jet pump (1a), for the fuel oil of auxiliary fuel tank (102) bottom to be introduced into the oil storage barrel.
8. fuel service system according to claim 6, it is characterised in that additional draw is provided with the bottom of the auxiliary fuel tank
Pump is penetrated, for the fuel oil of auxiliary fuel tank (102) bottom to be introduced into the oil storage barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296418.0U CN206770296U (en) | 2017-03-24 | 2017-03-24 | Jet pump and the fuel service system including the jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296418.0U CN206770296U (en) | 2017-03-24 | 2017-03-24 | Jet pump and the fuel service system including the jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770296U true CN206770296U (en) | 2017-12-19 |
Family
ID=60633157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720296418.0U Active CN206770296U (en) | 2017-03-24 | 2017-03-24 | Jet pump and the fuel service system including the jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770296U (en) |
-
2017
- 2017-03-24 CN CN201720296418.0U patent/CN206770296U/en active Active
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| 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 |