CN205807407U - The combustion mechanism of fuel injection device - Google Patents
The combustion mechanism of fuel injection device Download PDFInfo
- Publication number
- CN205807407U CN205807407U CN201620432976.0U CN201620432976U CN205807407U CN 205807407 U CN205807407 U CN 205807407U CN 201620432976 U CN201620432976 U CN 201620432976U CN 205807407 U CN205807407 U CN 205807407U
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- Prior art keywords
- nozzle
- fuel injection
- injection device
- generating tube
- combustion mechanism
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Abstract
The utility model discloses the combustion mechanism of a kind of fuel injection device, including nozzle, jet pipe, generating tube；Jet pipe includes nozzle body, fire-spraying plate, and nozzle body includes contraction section, narrow aditus laryngis, expansion segment, and contraction section tapers into along the bore of air supply direction and is transitioned into narrow aditus laryngis, and expansion segment starts to be gradually increased along the bore of air supply direction from narrow aditus laryngis；Fire-spraying plate is fixed on the expansion segment end along air supply direction；Generating tube is fixed on the jet pipe rear along air supply direction, and generating tube has gas outlet, and this gas outlet connects with nozzle, and said nozzle is in inside contraction section or narrow aditus laryngis inside or expansion segment.The flame that this utility model can solve how to make nozzle spray can carry out the technical problem of pressurized operation.
Description
Technical field
This utility model relates to the accessory of a kind of fuel injection device belonging to F02M 21/00 field, and specifically one
Plant the combustion mechanism of fuel injection device.
Background technology
Chinese Patent Application No. 932128246 discloses a kind of liquefied synthetic gas stove, and generating tube therein is fixed on spray
Front on the left of mouth, wherein combustion gas does not directly have through pressure process from nozzle ejection thus causes firepower is not fierce.In as
State number of patent application 201220269328.X, patent name is shown in the Fig. 6 to Figure 18 in a kind of biological alcohol oil combustion device.
Summary of the invention
The purpose of this utility model is to provide the combustion mechanism of a kind of fuel injection device, solves how to make nozzle spray
Flame can carry out the technical problem of pressurized operation.
The combustion mechanism of fuel injection device, including nozzle, jet pipe, generating tube；Jet pipe includes nozzle body, fire-spraying plate,
Nozzle body includes contraction section, narrow aditus laryngis, expansion segment, and contraction section tapers into along the bore of air supply direction and is transitioned into narrow aditus laryngis,
Expansion segment starts to be gradually increased along the bore of air supply direction from narrow aditus laryngis；Fire-spraying plate is fixed on the expansion segment end along air supply direction
End；Generating tube is fixed on the jet pipe rear along air supply direction, and generating tube has gas outlet, and this gas outlet is with nozzle even
Logical, said nozzle is in inside contraction section or narrow aditus laryngis inside or expansion segment.
Described jet pipe also includes air intake plate, and air intake plate has air inlet and nozzle fixing hole, and nozzle is fixed on above-mentioned spray
On mouth fixing hole；Air intake plate is fixed on the contraction section front end along air supply direction.
Described air inlet has 2-6.
Described nozzle fixing hole has 1-3.
Described nozzle body is Laval nozzle main body.
There is on described fire-spraying plate fire jetting hole, above-mentioned fire jetting hole flue, bottom this fire-spraying plate, there is discharge port.
Described generating tube is helical form generating tube or the U-tube of the snakelike connection of multistage.
It is fixed with reinforcement on described helical form generating tube.
Described nozzle interior is cone.
Described air inlet is oval.
The beneficial effects of the utility model are: this utility model adds a jet pipe between nozzle and generating tube, spray
Pipe front end is used for fixing nozzle and arranging air inlet making outside air enter in nozzle body；Jet pipe middle part i.e. jet pipe
Then main part becomes larger owing to caliber tapers into, and the firepower so making ejection is fierce；Generating tube is arranged on spray
Pipe is along the front of air supply direction, so fully by vaporization of liquid fuel, improves the utilization rate of fuel.This jet pipe is to the supercharging of air elder generation
Then diffusion, so utilizes the principle of Laval nozzle to make the firepower of ejection fiercely, the gas that nozzle is the most also sprayed by jet pipe
Make its track that burns fixing the most disorderly after state ignited fuel；Nozzle is arranged on jet pipe centre position and can make fuel gas and air
Middle oxygen combines more preferably thus plays preferable combustion efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of jet pipe；
Fig. 2 is the front view of air intake plate；
Fig. 3 is the front view of fire-spraying plate；
Fig. 4 is to show the schematic diagram within fire-spraying plate；
Fig. 5 is the schematic diagram of the combustion mechanism of fuel injection device；
Fig. 6 is the front view of another kind of air intake plate；
Fig. 7 is the schematic diagram of the combustion mechanism of another kind of fuel injection device；
1. jet pipes in figure, 11. air intake plates, 111. air inlets, 112. nozzle fixing holes, 12. nozzle body, 121.
Contraction section, 122. narrow aditus laryngis, 123. expansion segments, 13. fire-spraying plates, 131. fire jetting holes, 132. discharge ports, 2. generating tube,
21. gas outlets, 3. nozzle.
Detailed description of the invention
Refer to Fig. 1 to Fig. 6, the combustion mechanism of fuel injection device in figure, including jet pipe 1, generating tube 2, cone
Nozzle 3.
Jet pipe 1 includes air intake plate 11, nozzle body 12, fire-spraying plate 13.There is on air intake plate 11 air inlet 111 and nozzle is solid
Determine hole 112；So by air inlet 111, the wind that aerator is discharged obtains supercharging in just entering into nozzle body 12, by spray
Mouth fixing hole 112 just can fix nozzle 3.Wherein air inlet 111 can be selected for 2-6, preferably 2 convenient processing.Nozzle is fixed
Hole 112 can be selected for 1-3, preferably 1 convenient processing.
Nozzle body 12 is Laval nozzle main body, and it includes contraction section 121, narrow aditus laryngis 122, expansion segment 123；Contraction section
121 taper into along the bore of air supply direction and to be transitioned into narrow aditus laryngis 122, expansion segment 123 along the bore of air supply direction from narrow aditus laryngis
122 start to be gradually increased；Air intake plate 11 is fixed on the contraction section 121 front end along air supply direction, and fire-spraying plate 13 is fixed on expansion segment
123 along the end of air supply direction；Just can be increased going out wind pressure so that the flame of ejection is fierce by such design.Vaporization
Pipe 2 is fixed on the jet pipe 1 rear along air supply direction, and generating tube 2 has gas outlet 21, and this gas outlet 21 is with nozzle 3 even
Logical, the flame that such generating tube 2 utilizes jet pipe 3 to spray carries out heating to its interior liquid fuel makes it vaporize.On fire-spraying plate 13
There is fire jetting hole 131, above-mentioned fire jetting hole 131 flue, so may also function as the effect of supercharging.In use, set as encountered
Standby fault, when liquid fuel the most fully vaporizes, can install a discharge port bottom the fire-spraying plate 13 on nozzle body 12
132, so liquid fuel is derived.
Generating tube 2 is helical form generating tube or the U-tube of the snakelike connection of multistage, and wherein helical form generating tube 2 is helical form
Annular generating tube or helical form ellipse generating tube or helical form square generating tube or helical form rectangle generating tube or
Person's helical form rhombus generating tube or helical form regular polygon generating tube or helical form irregular polygon generating tube.Helical form
Generating tube 2 is provided with at least two circle generating tubes；Diameter or the length of side of described often circle helical form generating tube are identical；Described often enclose helical form
Spacing between generating tube is identical；The diameter of described generating tube is identical.In order to increase the intensity of helical form generating tube, can be at spiral
A reinforcement is increased on shape generating tube.Generating tube 2 can also use a housing wrap above-mentioned spiral helicine structure or
One inside has the housing of cavity, and housing has one gas outlet of an oil-in.
Refer to Fig. 6 and Fig. 7, in figure, its air inlet 111 of air intake plate 11 of display is relatively big, the most beneficially air intake, nozzle 3
It is in the lateral mid-point of narrow aditus laryngis 122 in nozzle body 12, its flame rod effect can be significantly improved by such setting.
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, above in conjunction with this utility model
Accompanying drawing in embodiment, has carried out clearly and completely describing to the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and
The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.
Therefore, the detailed description of the above embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, " vertically ", " level ",
Orientation or the position relationship of the instruction such as " interior ", " outward " are based on orientation shown in the drawings or position relationship, or this practicality is new
The orientation usually put during the use of type product or position relationship, be for only for ease of description this utility model and simplify description, and
It not to indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore
It is not intended that to restriction of the present utility model.Describe additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing, and
It is not intended that instruction or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " installation ", " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect,
Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, can be the connection of two element internals.For the ordinary skill in the art, can manage with concrete condition
Solve above-mentioned term concrete meaning in this utility model.
Claims (10)
1. the combustion mechanism of fuel injection device, it is characterised in that: include nozzle, jet pipe, generating tube；Jet pipe includes jet pipe master
Body, fire-spraying plate, nozzle body includes contraction section, narrow aditus laryngis, expansion segment, and contraction section tapers into transition along the bore of air supply direction
To narrow aditus laryngis, expansion segment starts to be gradually increased along the bore of air supply direction from narrow aditus laryngis；Fire-spraying plate is fixed on expansion segment along air-supply
The end in direction；Generating tube is fixed on the jet pipe rear along air supply direction, and generating tube has gas outlet, this gas outlet with
Nozzle connects, and said nozzle is in inside contraction section or narrow aditus laryngis inside or expansion segment.
2. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: described jet pipe also include into
Aerofoil, air intake plate has air inlet and nozzle fixing hole, and nozzle is fixed on said nozzle fixing hole；Air intake plate is fixed on receipts
Contracting section is along the front end of air supply direction.
3. according to the combustion mechanism of the fuel injection device described in claim 2, it is characterised in that: described air inlet has 2-
6.
4. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: described nozzle fixing hole has
There is 1-3.
5. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: described nozzle body is for drawing
Wa Er nozzle body.
6. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: have on described fire-spraying plate
Fire jetting hole, above-mentioned fire jetting hole flue, bottom this fire-spraying plate, there is discharge port.
7. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: described generating tube is spiral
Shape generating tube or the U-tube of the snakelike connection of multistage.
8. according to the combustion mechanism of the fuel injection device described in claim 7, it is characterised in that: described helical form generating tube
On be fixed with reinforcement.
9. according to the combustion mechanism of the fuel injection device described in claim 1, it is characterised in that: described nozzle interior is circle
Taper.
10. according to the combustion mechanism of the fuel injection device described in claim 2, it is characterised in that: described air inlet is ellipse
Circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620432976.0U CN205807407U (en) | 2016-05-15 | 2016-05-15 | The combustion mechanism of fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620432976.0U CN205807407U (en) | 2016-05-15 | 2016-05-15 | The combustion mechanism of fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205807407U true CN205807407U (en) | 2016-12-14 |
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ID=57499051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620432976.0U Active CN205807407U (en) | 2016-05-15 | 2016-05-15 | The combustion mechanism of fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205807407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991860A (en) * | 2017-04-24 | 2017-07-28 | 北京航天试验技术研究所 | A kind of kidney-yang simulation generator and control method |
| CN107233689A (en) * | 2017-04-24 | 2017-10-10 | 北京航天试验技术研究所 | A kind of kidney-yang generator of long flame and kidney-yang analogue means |
-
2016
- 2016-05-15 CN CN201620432976.0U patent/CN205807407U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991860A (en) * | 2017-04-24 | 2017-07-28 | 北京航天试验技术研究所 | A kind of kidney-yang simulation generator and control method |
| CN107233689A (en) * | 2017-04-24 | 2017-10-10 | 北京航天试验技术研究所 | A kind of kidney-yang generator of long flame and kidney-yang analogue means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170825 Address after: 118 No. 312300 Zhejiang province Shaoxing city Shangyu District Cao'e streets Chunhui Industrial Avenue Patentee after: Zhejiang New Energy Technology Co., Ltd. Address before: Chunhui No. 118 Industrial Avenue Shangyu District 312300 in Zhejiang city of Shaoxing Province Patentee before: Zhejiang Mingxin Fan Co., Ltd. |
|
| TR01 | Transfer of patent right |