CN109826738A - A kind of dual fuel injector - Google Patents
A kind of dual fuel injector Download PDFInfo
- Publication number
- CN109826738A CN109826738A CN201910140984.6A CN201910140984A CN109826738A CN 109826738 A CN109826738 A CN 109826738A CN 201910140984 A CN201910140984 A CN 201910140984A CN 109826738 A CN109826738 A CN 109826738A
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- oil
- gas nozzle
- nozzle
- atomizer
- injector body
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Abstract
The present invention relates to a kind of diesel engine of vehicle injector, specifically a kind of dual fuel injector belongs to diesel engine of vehicle injector technical field.It includes the gentle tight-lipped cap of gas nozzle, and the lower end of atomizer is arranged in gas nozzle, and gas nozzle outer ring is equipped with the tight cap of gas nozzle, and the tight cap of gas nozzle is threadedly attached in oil injector body lower end and gas nozzle is pressed on atomizer；The oil injector body side is equipped with air inlet, and oil injector body lower end surface is circumferentially equipped with a circle spreading grooves, the air intake duct of connection air inlet and spreading grooves is equipped in oil injector body；Multiple oil nozzle air flues up and down are equipped in the atomizer, the upper end of the oil nozzle air flue is connected to spreading grooves, and the lower end of oil nozzle air flue is connected to gas nozzle puff prot.The invention has the advantages of simple structure, compactness and reasonable structure, can achieve the purpose that reduce discharge, can make diesel oil full combustion, reduce the discharge of soot；Can meet the needs of different zones, different clients situations such as convenience according to the price change of oil and combustion gas, reserve distribution.
Description
Technical field
The present invention relates to a kind of diesel engine of vehicle injector, specifically a kind of dual fuel injector belongs to automobile bavin
Oil machine injector technical field.
Background technique
In the prior art, what is generallyd use on internal combustion engine is single-fuel injection apparatus, it is few can spray two kinds and
The injector of two or more fuel.And the injector that can be realized two kinds and two or more fuel injections is all individually to tie two kinds
The fuel injector of structure, which combines, to be sprayed, and is only applicable to the engine of low-pressure.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, so that a kind of dual fuel injector is provided, in not changing
In the case where combustion engine chamber structure, dual fuel injection is carried out, to reduce the discharge of engine, reaches the requirement of environmental protection.
According to technical solution provided by the invention, a kind of dual fuel injector includes oil injector body, atomizer, needle-valve and spray
Tight cap of oil nozzle, oil injector body center are equipped with oil suction chamber, are equipped with the needle-valve that can be slided up and down in oil suction chamber；Oil injector body lower end is set
There is atomizer, atomizer outer ring is equipped with nozzle cap nut, and nozzle cap nut is threadedly attached in oil injector body lower end and will spray
Oil nozzle is pressed on oil injector body lower end, and needle-valve lower end is protruded into atomizer, it is characterized in that: further including the gentle tight-lipped cap of gas nozzle, gas
The lower end of atomizer is arranged in mouth, and gas nozzle outer ring is equipped with the tight cap of gas nozzle, and the tight cap of gas nozzle is threadedly attached in oil injector body lower end
And gas nozzle is pressed on atomizer；The oil injector body side is equipped with air inlet, and oil injector body lower end surface is circumferentially
Equipped with a circle spreading grooves, the air intake duct of connection air inlet and spreading grooves is equipped in oil injector body；It is equipped in the atomizer multiple
The upper end of oil nozzle air flue up and down, the oil nozzle air flue is connected to spreading grooves, the lower end of oil nozzle air flue and gas nozzle puff prot
Connection.
Further, oil injector body side is equipped with the oil inlet of connection oil suction chamber.
Further, gas nozzle spring is equipped between the gentle tight-lipped cap of gas nozzle, the tight cap of gas nozzle is kept by gas nozzle spring to gas
The elastic compression of mouth.
Further, the outer ring of gas nozzle spring is equipped with gas nozzle grommet.
Further, multiple oil nozzle air flues are uniformly distributed along atomizer circumferencial direction.
Further, nozzle cap nut is coated on interior by the tight cap of gas nozzle.
Compared with the prior art the present invention has the advantage that
The invention has the advantages of simple structure, compactness and reasonable structure, can achieve the purpose that reduce discharge, can make diesel oil full combustion, reduce carbon
The discharge of cigarette；Different zones, different clients can be met situations such as convenience according to the price change of oil and combustion gas, reserve distribution
Demand.
Detailed description of the invention
Fig. 1 is main view semi-cutaway of the present invention.
Description of symbols: 1- oil injector body, 2- atomizer, 3- needle-valve, 4- nozzle cap nut, 5- gas nozzle, 6- gas nozzle bullet
Spring, the tight cap of 7- gas nozzle, 8- gas nozzle grommet, 9- oil inlet, 10- air inlet, 11- air intake duct, 12- spreading grooves, 13- oil nozzle air flue.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
As shown in Figure 1, the invention mainly comprises oil injector body 1, atomizer 2, needle-valve 3 and nozzle cap nut 4, in oil injector body 1
The heart is equipped with oil suction chamber, is equipped with the needle-valve 3 that can be slided up and down in oil suction chamber.
1 lower end of oil injector body is equipped with atomizer 2, and 2 outer ring of atomizer is equipped with nozzle cap nut 4, and nozzle cap nut 4 passes through spiral shell
Line is connected to 1 lower end of oil injector body and atomizer 2 is pressed on 1 lower end of oil injector body.3 lower end of needle-valve is protruded into atomizer 2.
1 side of oil injector body is equipped with the oil inlet 9 of connection oil suction chamber, and the fuel oil of injection enters oil inlet by oil inlet
In chamber, enter in atomizer then along needle-valve, and realizes that fuel oil is sprayed from atomizer by the control of needle-valve.
The invention also includes the gentle tight-lipped cap 7 of gas nozzle 5, the lower end of atomizer 2 is arranged in gas nozzle 5, and 5 outer ring of gas nozzle is equipped with gas
Tight-lipped cap 7, the tight cap 7 of gas nozzle are threadedly attached in 1 lower end of oil injector body and gas nozzle 5 are pressed on atomizer 2.The gas nozzle
Nozzle cap nut 4 is coated on interior by tight cap 7.
Gas nozzle spring 6 is equipped between the gentle tight-lipped cap 7 of gas nozzle 5, the tight cap 7 of gas nozzle is kept by gas nozzle spring 6 to gas
The elastic compression of mouth 5.
The outer ring of the gas nozzle spring 6 is equipped with gas nozzle grommet 8, and gas nozzle grommet 8 controls the maximum opening of gas nozzle.
1 side of oil injector body is equipped with air inlet 10, and 1 lower end surface of oil injector body is circumferentially equipped with circle diffusion
Slot 12, the interior air intake duct 11 for being equipped with connection air inlet 10 and spreading grooves 12 of oil injector body 1.It is equipped on multiple in the atomizer 2
The oil nozzle air flue 13 of lower perforation, multiple oil nozzle air flues 13 are uniformly distributed along 2 circumferencial direction of atomizer.The oil nozzle air flue 13
Upper end is connected to spreading grooves 12, and the lower end of oil nozzle air flue 13 is connected to 5 puff prot of gas nozzle.
The combustion gas of injection is entered in the air intake duct of oil injector body by air inlet, and is diffused into atomizer by spreading grooves
In each oil nozzle air flue, finally sprayed from gas nozzle.
Oil spout mouth structure of the invention by magnet control, normal injection diesel oil, i.e. magnet control opening for needle-valve
It opens and closes, to complete the injection and closing of atomizer, spray fuel oil to engine chamber, compression ignition fires in the combustion chamber
It burns.It in the structure of former fuel injector, improves along with a set of gas nozzle structure, it is fastened on by atomizer by the tight cap of gas nozzle
On tight cap, is entered by another set of magnet control combustion gas by air intake duct, gas nozzle spring, gas nozzle are opened by pressure difference combustion gas
Grommet controls the maximum opening of gas nozzle, after gas nozzle is opened, sprays combustion gas to combustion chamber, the diesel oil flame of compression ignition lights rapidly spray
Work by combustion is completed in the combustion gas entered.The diesel oil sprayed into when beginning plays the role of igniting.When diesel-fuel price in the market compares combustion gas
When cheap, pure diesel combustion mode may be selected.
The present invention installs a set of gas nozzle structure additional by improving on traditional fuel injector, in the case where high pressure,
It can be realized and freely control fuel oil injection and fuel gas injection, according to different operating conditions, using reasonable injection strategy.
The invention has the advantages of simple structure, compactness and reasonable structure, can achieve the purpose that reduce discharge, can make diesel oil full combustion, drop
The discharge of low-carbon cigarette；Different zones, difference can be met situations such as convenience according to the price change of oil and combustion gas, reserve distribution
The demand of client.
Claims (6)
1. a kind of dual fuel injector, including oil injector body (1), atomizer (2), needle-valve (3) and nozzle cap nut (4), oil spout
Body (1) center is equipped with oil suction chamber, is equipped with the needle-valve (3) that can be slided up and down in oil suction chamber；Oil injector body (1) lower end is equipped with spray
Oil nozzle (2), atomizer (2) outer ring are equipped with nozzle cap nut (4), and nozzle cap nut (4) is threadedly attached in oil injector body (1)
Atomizer (2) is simultaneously pressed on oil injector body (1) lower end by lower end, and needle-valve (3) lower end is protruded into atomizer (2), it is characterized in that: also
Including the gentle tight-lipped cap (7) of gas nozzle (5), gas nozzle (5) setting is equipped with the tight cap of gas nozzle in the lower end of atomizer (2), gas nozzle (5) outer ring
(7), the tight cap of gas nozzle (7) is threadedly attached in oil injector body (1) lower end and gas nozzle (5) is pressed on atomizer (2)；It is described
Oil injector body (1) side is equipped with air inlet (10), and oil injector body (1) lower end surface is circumferentially equipped with a circle spreading grooves
(12), the air intake duct (11) of connection air inlet (10) and spreading grooves (12) is equipped in oil injector body (1)；In the atomizer (2)
Equipped with multiple oil nozzle air flues (13) up and down, the upper end of the oil nozzle air flue (13) is connected to spreading grooves (12), oil nozzle gas
The lower end in road (13) is connected to gas nozzle (5) puff prot.
2. a kind of dual fuel injector as described in claim 1, it is characterized in that: the oil injector body (1) side is equipped with connection
The oil inlet (9) of oil suction chamber.
3. a kind of dual fuel injector as described in claim 1, it is characterized in that: between the gentle tight-lipped cap (7) of the gas nozzle (5)
Equipped with gas nozzle spring (6), the tight cap of gas nozzle (7) keeps the elastic compression to gas nozzle (5) by gas nozzle spring (6).
4. a kind of dual fuel injector as claimed in claim 3, it is characterized in that: the outer ring of the gas nozzle spring (6) is equipped with gas
Mouth grommet (8).
5. a kind of dual fuel injector as described in claim 1, it is characterized in that: the multiple oil nozzle air flue (13) is along oil spout
Mouth (2) circumferencial direction is uniformly distributed.
6. a kind of dual fuel injector as described in claim 1, it is characterized in that: the tight cap of the gas nozzle (7) is by nozzle cap nut
(4) in being coated on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140984.6A CN109826738B (en) | 2019-02-26 | 2019-02-26 | Dual-fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140984.6A CN109826738B (en) | 2019-02-26 | 2019-02-26 | Dual-fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109826738A true CN109826738A (en) | 2019-05-31 |
| CN109826738B CN109826738B (en) | 2020-10-23 |
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ID=66864506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910140984.6A Active CN109826738B (en) | 2019-02-26 | 2019-02-26 | Dual-fuel injector |
Country Status (1)
| Country | Link |
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| CN (1) | CN109826738B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344976A (en) * | 2019-07-29 | 2019-10-18 | 大连民族大学 | A kind of diesel oil, natural gas double fuel engine nozzle operation method |
| CN110905703A (en) * | 2019-11-25 | 2020-03-24 | 一汽解放汽车有限公司 | Dual-fuel injector |
| CN111535955A (en) * | 2020-05-29 | 2020-08-14 | 一汽解放汽车有限公司 | Quick-response dual-fuel injection valve |
| CN111535957A (en) * | 2020-05-29 | 2020-08-14 | 一汽解放汽车有限公司 | Integrated dual-fuel injector and injection method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0874698A (en) * | 1994-09-12 | 1996-03-19 | Mitsubishi Heavy Ind Ltd | Binary injection valve of diesel engine |
| CN103168163A (en) * | 2010-08-11 | 2013-06-19 | 现代重工业株式会社 | Two-stage fuel injection valve |
| CN103967674A (en) * | 2014-04-24 | 2014-08-06 | 中国北方发动机研究所(天津) | Diesel premixing natural gas nozzle and working method thereof |
| US20160010610A1 (en) * | 2014-07-11 | 2016-01-14 | Denso Corporation | Fuel injection device |
| CN106704067A (en) * | 2017-01-25 | 2017-05-24 | 中国第汽车股份有限公司 | Weak leakage oil return preventing fuel injection device |
| CN106795839A (en) * | 2014-07-19 | 2017-05-31 | 莱奥林奇有限责任公司 | Double fuel-fuel injector |
| US20170175693A1 (en) * | 2014-03-28 | 2017-06-22 | Quantlogic Corporation | A fuel injector flexible for single and dual fuel injection |
-
2019
- 2019-02-26 CN CN201910140984.6A patent/CN109826738B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0874698A (en) * | 1994-09-12 | 1996-03-19 | Mitsubishi Heavy Ind Ltd | Binary injection valve of diesel engine |
| CN103168163A (en) * | 2010-08-11 | 2013-06-19 | 现代重工业株式会社 | Two-stage fuel injection valve |
| US20170175693A1 (en) * | 2014-03-28 | 2017-06-22 | Quantlogic Corporation | A fuel injector flexible for single and dual fuel injection |
| CN103967674A (en) * | 2014-04-24 | 2014-08-06 | 中国北方发动机研究所(天津) | Diesel premixing natural gas nozzle and working method thereof |
| US20160010610A1 (en) * | 2014-07-11 | 2016-01-14 | Denso Corporation | Fuel injection device |
| CN106795839A (en) * | 2014-07-19 | 2017-05-31 | 莱奥林奇有限责任公司 | Double fuel-fuel injector |
| CN106704067A (en) * | 2017-01-25 | 2017-05-24 | 中国第汽车股份有限公司 | Weak leakage oil return preventing fuel injection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344976A (en) * | 2019-07-29 | 2019-10-18 | 大连民族大学 | A kind of diesel oil, natural gas double fuel engine nozzle operation method |
| CN110905703A (en) * | 2019-11-25 | 2020-03-24 | 一汽解放汽车有限公司 | Dual-fuel injector |
| CN111535955A (en) * | 2020-05-29 | 2020-08-14 | 一汽解放汽车有限公司 | Quick-response dual-fuel injection valve |
| CN111535957A (en) * | 2020-05-29 | 2020-08-14 | 一汽解放汽车有限公司 | Integrated dual-fuel injector and injection method thereof |
| CN111535957B (en) * | 2020-05-29 | 2021-04-20 | 一汽解放汽车有限公司 | Integrated dual-fuel injector and injection method thereof |
| CN111535955B (en) * | 2020-05-29 | 2021-04-27 | 一汽解放汽车有限公司 | Quick-response dual-fuel injection valve |
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| Publication number | Publication date |
|---|---|
| CN109826738B (en) | 2020-10-23 |
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