CN109058013A - A kind of natural gas diesel injector of new control model - Google Patents
A kind of natural gas diesel injector of new control model Download PDFInfo
- Publication number
- CN109058013A CN109058013A CN201811109503.7A CN201811109503A CN109058013A CN 109058013 A CN109058013 A CN 109058013A CN 201811109503 A CN201811109503 A CN 201811109503A CN 109058013 A CN109058013 A CN 109058013A
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- valve
- oil
- natural gas
- air
- diesel
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 239000003345 natural gas Substances 0.000 title claims abstract description 80
- 239000002283 diesel fuel Substances 0.000 claims abstract description 88
- 239000007921 spray Substances 0.000 claims description 28
- 238000009825 accumulation Methods 0.000 claims description 19
- 230000007423 decrease Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 239000000446 fuel Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 104
- 239000000543 intermediate Substances 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 206010022000 influenza Diseases 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
Abstract
The invention belongs to injector technical fields, and in particular to a kind of natural gas diesel injector of new control model.The natural gas diesel injector of the new control model, including case of sprayer, electromagnetic valve for natural gas, diesel oil solenoid valve and valve body, the case of sprayer is equipped with electromagnetic valve for natural gas, diesel oil solenoid valve and valve body, valve body and case of sprayer junction are equipped with intermediate, needle-valve and air valve are equipped in the valve body, case of sprayer is equipped with diesel oil high pressure oil inlet, natural gas high pressure air inlet and diesel oil back oil road, natural gas high pressure air inlet by connection air flue and enclosure interior air flue through on intermediate intermediate air flue and valve body air flue be connected to annulus.The beneficial effect is that: control flexibility ratio is big, it is able to achieve the independent control and individual injection of diesel oil and natural gas double-fuel, reduce the length of needle-valve and air valve from design convenient for machining, air valve guide sleeve is introduced simultaneously to drive the coupled structure of air valve and move synchronously, avoid complicated technology, the conformity of production and reliability of product are improved, cost reduces.
Description
Technical field
The invention belongs to injector technical fields, and in particular to a kind of natural gas diesel injector of new control model.
Background technique
In currently on the market, weight commercial vehicle and non-rice habitats engineering machinery used in internal combustion engine mainly use diesel oil and few portion
Point fuel is used as using natural gas, gradually adds tight emission regulation to meet, Current internal combustion engines mainly use single diesel oil as
Manifold injection technology of the high pressure direct injection natural gas in cylinder technology (high pressure co-rail system) or natural gas of fuel as fuel.
Use diesel oil as the internal combustion engine of single-fuel using newest high-pressure common rail spraying technique, efficiency of combustion is basic
It is upper to be lower than 39%, a certain amount of particle and nitrogen oxides can be discharged, it is very big to air pollution, with the publication of six discharge standard of state, need
The more complicated deficiency that diesel engine could be compensated with the higher after-treatment system of cost is wanted, technical difficulty gradually increases.
Adjustment with national energy structure and the promotion to emission request, traditional with single gasoline or diesel oil is combustion
The internal combustion engine for burning medium will gradually decrease, and natural gas is abundant in China and global resources, can gradually fire as the substitution of diesel oil
Material starts to be applied to automobile market.Current a small amount of natural gas internal combustion engine is gas-duct jetting, is lighted by spark plug,
Efficiency of combustion is lower than 36%, and its unburned CH4 is expelled directly out, and will form the pollution to air, it is also difficult to which satisfaction gradually mentions
The emission request risen.
A kind of in-cylinder direct-jet technology of achievable dual fuel injection, efficiency of combustion can be promoted to 42% or more and
To reduce the discharge of particle and nitrogen oxides, more to clean, more economical internal combustion engine injection system.
But presently, there are dual fuel injector do not have the maturity of large-scale production still, although two kinds of fuel can be realized
Injection, but because its structure is cumbersome, response speed is excessively slow, and clearance fit is difficult, and there are conformity of production is low and product cost
The problems such as excessively high, cannot still be widely used on the market, and it is empty that the performance and machinability of such product have biggish improvement
Between.
Summary of the invention
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of natural gas diesel injectors of new control model.
The present invention is achieved through the following technical solutions:
A kind of natural gas diesel injector of new control model, including case of sprayer, electromagnetic valve for natural gas, diesel oil solenoid valve and
Valve body, the case of sprayer are equipped with electromagnetic valve for natural gas, diesel oil solenoid valve and valve body, valve body and case of sprayer junction
Equipped with intermediate, needle-valve and air valve are equipped in the valve body, case of sprayer is equipped with diesel oil high pressure oil inlet, natural gas high pressure
Air inlet and diesel oil back oil road, natural gas high pressure air inlet is by connection air flue and enclosure interior air flue through the centre on intermediate
Body air flue and valve body air flue are connected to annulus, and the annulus is through oil nozzle natural gas cavity and natural air cavity, by air valve and valve body
It is connected to after sealed seat surface with spray chamber, multiple natural gas spray orifices is equipped on valve body and are connected to spray chamber, electromagnetic valve for natural gas is logical
The second oil duct connection Air Valve Control chamber is crossed, by controlling Air Valve Control cavity pressure, so that air valve guide sleeve be made to drive on air valve
It rising, the natural gas for keeping natural gas intracavitary flows into spray chamber, it is sprayed by natural gas spray orifice, the diesel oil high pressure oil inlet
High pressure oil is connected to through the high-pressure oil duct on intermediate with high pressure oil pressure accumulation chamber, and high pressure oil pressure accumulation chamber enters high pressure oil ring by oilhole
Band, high pressure oil annulus are communicated by diesel oil feeding throttle orifice with needle control chamber, and needle control chamber passes through diesel oil fuel-displaced throttle orifice
It is connected with oil-through hole with oil ring band is stored, the intracavitary diesel oil of noticeable degree passes through diesel oil fuel-displaced throttle orifice and oil-through hole to third oil duct
Interior pressure release, when diesel oil control cavity pressure decline, needle-valve rises, and high-pressure diesel is sprayed from high-voltage oil cavity by diesel oil spray orifice
It penetrates.
Further, the electromagnetic valve for natural gas, diesel oil solenoid valve are connected by oil return cross-drilled hole, diesel oil back oil road and drainback passage
It is logical.
Further, the needle-valve is occasionally matched with air valve guide sleeve, forms needle control chamber at the top of needle-valve, on air valve guide sleeve
Equipped with air valve meter in hole, diesel oil feeding throttle orifice and diesel oil fuel-displaced throttle orifice, air valve meter in hole and high pressure oil pressure accumulation
Chamber connection, high pressure oil pressure accumulation chamber are connected to by air valve meter in hole with Air Valve Control chamber, are connected by oilhole and high pressure oil annulus
It is logical, be connected to by needle-valve meter in hole with needle control chamber, the contact surface of air valve guide sleeve and air valve use intracavitary fixation into
Row coupling.
The beneficial effects of the present invention are: control flexibility ratio is big, be able to achieve diesel oil and natural gas double-fuel independent control and
Individual injection；Fast response time, control precision is high, can realize the two kinds of fuel controls of bavin oil and gas respectively；From design
Reduce the length of needle-valve and air valve convenient for machining, at the same introduce air valve guide sleeve drive the coupled structure of air valve with it is synchronous
Movement, avoids complicated technology, improves the conformity of production and reliability of product, and cost reduces.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the partial schematic diagram of nozzle of the present invention；
Attached drawing 3 is the structural schematic diagram of electromagnetic valve for natural gas of the present invention and diesel oil solenoid valve；
Attached drawing 4 is the attachment structure schematic diagram of case of sprayer of the present invention and intermediate and nozzle；
Attached drawing 5 is the attachment structure schematic diagram of nozzle of the present invention and intermediate；
Attached drawing 6 is the partial sectional view of inside natural gas air flue at injection of the present invention.
In figure, 1 electromagnetic valve for natural gas, 2 natural gas armature, 3 first balls guiding, 4 first ball valves, 5 interface channels, 6 diesel oil
Solenoid valve, 7 diesel oil armature, 8 second balls guiding, 9 second ball valves, 10 first oil ducts, 11 natural gas high pressure air inlets, 12 diesel oil return
Oil duct, 13 case of sprayer, 14 drainback passages, 15 oil return cross-drilled holes, 16 diesel oil high pressure oil inlets, 17 high-pressure oil ducts, 18 high pressure oils
Pressure accumulation chamber, 19 oil ducts, 20 diesel oil feeding throttle orifices, 21 diesel oil fuel-displaced throttle orifices, 22 store oil ring band, 23 needle control chambers, 24 needles
Valve, 25 diesel oil spray orifices, 26 second oil ducts, 27 meter in holes, 28 Air Valve Control chambers, 29 air valve guide sleeves, 30 contact surfaces, 31 gas
Valve, 32 natural gas spray orifices, 33 valve bodies, 34 inlet suction ports, 35 connection air flues, 36 enclosure interior air flues, 37 intermediate air flues, 38 valves
Body air flue, 39 annulus, 40 oil nozzle natural gas cavities, 41 natural air cavitys, 42 spray chambers, 43 oil-through holes, 44 oilholes, 46 thirds oil
Road, 47 high-voltage oil cavities, 49 high pressure oil annulus, 50 intermediates.
Specific embodiment
A kind of natural gas diesel injector 6 of new control model of the present invention is carried out furtherly below with reference to embodiment
It is bright.
Attached drawing 1-6 is a kind of specific embodiment of the invention.A kind of natural gas diesel injection of new control model of the invention
Device, including case of sprayer 13, electromagnetic valve for natural gas 1, diesel oil solenoid valve 6 and valve body 33, the case of sprayer 13 are equipped with
Electromagnetic valve for natural gas 1, diesel oil solenoid valve 6 and valve body 33, valve body 33 and 13 junction of case of sprayer are equipped with intermediate 50, described
Needle-valve 24 and air valve 31 are equipped in valve body, case of sprayer 13 is equipped with diesel oil high pressure oil inlet 16, natural gas high pressure air inlet
11 and diesel oil back oil road 12, natural gas high pressure air inlet 11 is by connection air flue 35 and enclosure interior air flue 36 through on intermediate 50
Intermediate air flue 37 and valve body air flue 38 be connected to annulus 39, the annulus 39 is through oil nozzle natural gas cavity 40 and natural air cavity
41, it is connected to after 33 sealed seat surface of valve body with spray chamber 42 by air valve 31, the valve body 33 being connected to spray chamber 42 is equipped with multiple
Natural gas spray orifice 32, electromagnetic valve for natural gas 1 are connected to Air Valve Control chamber 28 by the second oil duct 26, by controlling Air Valve Control chamber 28
Interior pressure makes the natural gas of natural air cavity 41 flow into spray chamber 42, passes through to make air valve guide sleeve 29 that air valve 31 be driven to rise
Natural gas spray orifice 32 is sprayed, and the high pressure oil of the diesel oil high pressure oil inlet 16 is through the high-pressure oil duct 17 and height on intermediate 50
Pressure oil pressure accumulation chamber 18 is connected to, and high pressure oil pressure accumulation chamber 18 enters high pressure oil annulus 49 by oil-through hole 43, and high pressure oil annulus 49 passes through
Diesel oil feeding throttle orifice 20 is communicated with needle control chamber 23, and needle control chamber 23 passes through diesel oil fuel-displaced throttle orifice 21 and oil-through hole 43
It is connected with oil ring band 22 is stored, the diesel oil in oil valve control chamber 23 is by fuel-displaced throttle orifice 21 and oil-through hole 43 into third oil duct 46
Pressure release, when diesel oil control cavity pressure decline, needle-valve 24 rises, and high-pressure diesel is carried out from high-voltage oil cavity 47 by diesel oil spray orifice 25
Injection.
Further, the electromagnetic valve for natural gas 1, diesel oil solenoid valve 6 pass through oil return cross-drilled hole 15, diesel oil back oil road 12 and oil return
Channel 14 is connected to.
Further, the needle-valve 24 is occasionally matched with air valve guide sleeve 29, and needle control chamber 23, air valve are formed at the top of needle-valve 24
Guide sleeve 29 is equipped with air valve meter in hole 27, diesel oil feeding throttle orifice 20 and diesel oil fuel-displaced throttle orifice 21, air valve oil inlet section
Discharge orifice 27 is connected to high pressure oil pressure accumulation chamber 18, and high pressure oil pressure accumulation chamber 18 is connected by air valve meter in hole 27 and Air Valve Control chamber 28
Logical, high pressure oil pressure accumulation chamber 18 is connected to by oilhole 44 with high pressure oil annulus 49, passes through diesel oil feeding throttle orifice 20 and noticeable degree
Chamber 23 is connected to, and air valve guide sleeve 29 is coupled with the contact surface 30 of air valve 31 using intracavitary fixation.
Further, the realization that electromagnetic valve for natural gas 1 controls the first ball valve 4 opens and closes, and causes in Air Valve Control chamber 28
The decline and rising of portion's pressure control the up and down motion of air valve 31, and final control natural gas is realized by spray orifice 32 opens jet
Or jet is closed, the response speed of opening and closing, natural gas can be effectively adjusted to the control of 27 diameter of air valve meter in hole
Solenoid valve 1 controls the raising and lowering of natural gas armature 2, and electromagnetic attracting force natural gas armature 2 is generated after power-up and is risen, after power-off
In the case where no electromagnetic force, natural gas armature 2 declines under spring force, the raising and lowering of natural gas armature 2,
The raising and lowering of the first ball guiding 3 and the first ball valve 4 will be controlled, the raising and lowering of the first ball valve 4 will affect the second oil duct
26 opening and closing, the opening and closing of the second oil duct 26 will affect the pressure of Air Valve Control chamber 28, when the second oil duct 26 is opened
28 pressure of Air Valve Control chamber declines when opening, and when the second oil duct 26 is closed, 28 pressure of Air Valve Control chamber rises, Air Valve Control chamber 28
Pressure will affect the raising and lowering of air valve guide sleeve 29, when the decline of 28 pressure of Air Valve Control chamber on air valve guide sleeve 29
It rises, when 28 pressure of Air Valve Control chamber rises, air valve guide sleeve 29 declines, and air valve guide sleeve 29 and air valve 31 pass through contact surface 30
It keeps close-coupled and limits, air valve 31 not can be rotated in air valve guide sleeve 29, by their beginnings of the effect of neutral spring force
Eventually in the state being adjacent to, when air valve guide sleeve 29 rises, air valve 31 rises, when air valve guide sleeve 29 declines under air valve 31
Drop, high pressure oil enter high pressure oil pressure accumulation chamber 18, high pressure oil pressure accumulation chamber 18 by diesel oil high pressure oil inlet 16, by high-pressure oil duct 17
It is communicated by air valve meter in hole 27 with Air Valve Control chamber 28, high pressure oil flows into Air Valve Control by air valve meter in hole 27
Chamber 28, Air Valve Control chamber 28 are collectively constituted by air valve guide sleeve 29, intermediate 50,13 lower end surface of case of sprayer, and inside exists
Air valve holddown spring air-supply valve 29 1 downward pressing forces of guide sleeve, natural gas enter connection air flue by inlet suction port 34
35, intermediate air flue 37 and valve body air flue 38 are flowed by enclosure interior air flue 36, then flow into annulus 39, the day in annulus 39
Right gas is distributed in oil nozzle natural gas cavity 40 and natural air cavity 41 with certain pressure, when the power-up of electromagnetic valve for natural gas 1 leads to the
One ball valve 4 rises, and the second oil duct 26 is caused to be opened, and the unlatching of the second oil duct 26 causes pressure in Air Valve Control chamber 28 to decline, air valve
Guide sleeve 29, which rises, drives air valve 31 to rise, and the high-pressure natural gas of oil nozzle natural gas cavity 40 and natural air cavity 41 flows into spray chamber
42, it is sprayed finally by natural gas spray orifice 32, conversely, drawing when the power-off of electromagnetic valve for natural gas 1 causes the first ball valve 4 to decline
It plays the second oil duct 26 and closes and rise with pressure in air valve control chamber 28, cause air valve guide sleeve 29 and air valve 31 to move downward, hinder
The natural gas of oil-break mouth natural gas cavity 40 and natural air cavity 41 flows into spray chamber 42, and natural gas stops injection.
Further, diesel oil solenoid valve 6 controls the opening and closing of the second ball valve 9, finally controls the up and down motion of needle-valve 24,
The opening and closing control diesel oil spray orifice 25 of needle-valve 24, which is realized, to be opened oil spout and closes oil spout, straight for diesel oil feeding throttle orifice 20
The control of 21 diameter of diameter and diesel oil fuel-displaced throttle orifice can effectively adjust the response speed of opening and closing；
Further, diesel oil solenoid valve 6 controls the raising and lowering of diesel oil armature 7, and electromagnetic attracting force diesel oil armature 7 is generated after power-up
Rise, after power-off in the case where no electromagnetic force, diesel oil armature 7 declines under spring force, the rising of diesel oil armature 7
And decline, the raising and lowering of the second ball guiding 8 and the second ball valve 9 will be controlled, the raising and lowering of the second ball valve 9 will affect the
The pressure change of one oil duct 10, so that the pressure of third oil duct 46 is influenced, when the second ball valve 9 is opened under 46 pressure of third oil duct
Drop, when the second ball valve 9 is closed, 46 pressure of third oil duct rises, and needle control chamber 23 is common by air valve guide sleeve 29 and needle-valve 24
Composition, the pressure of needle control chamber 23 will affect the raising and lowering of needle-valve 24, the needle-valve when the decline of 23 pressure of needle control chamber
24 rise, and when 23 pressure of needle control chamber rises, needle-valve 24 declines, and high pressure oil passes through high pressure by diesel oil high pressure oil inlet 16
Oil duct 17 enters high pressure oil pressure accumulation chamber 18, and high pressure oil pressure accumulation chamber 18 enters high pressure oil annulus 49, high pressure oil annulus by oilhole 44
High pressure oil in 49 is communicated by diesel oil feeding throttle orifice 20 with oil valve control chamber 23, and high pressure oil is flowed by meter in hole 20
Oil valve control chamber 23, oil valve control chamber 23 are connected by diesel oil fuel-displaced throttle orifice 21 and oil-through hole 43 with oil ring band 22 is stored, and oil is stored
Annulus 22 is communicated by third oil duct 46 with the first oil duct 10, and the flow in fuel-displaced throttle orifice 21 and meter in hole 20 will very great Cheng
The rate of noticeable degree cavity pressure variation is influenced on degree, their ratio is bigger, and pressure discharges faster.
Meanwhile the high pressure oil in high pressure oil pressure accumulation chamber 18 flows into high-voltage oil cavity 47 by oil duct 19, when diesel oil solenoid valve 6 adds
Conductance causes the second ball valve 9 to rise, when the first oil duct 10 being caused to be opened with the decline of 46 pressure of third oil duct, in diesel oil control chamber 23
Diesel oil passes through the pressure release into third oil duct 46 of fuel-displaced throttle orifice 21 and oil-through hole 43, pressure decline, needle-valve in diesel oil control chamber 23
24 rise, and high-pressure diesel is sprayed from high-voltage oil cavity 47 by diesel oil spray orifice 25.
Conversely, causing in 46 pressure of the first oil duct 10 and oil duct when the power-off of diesel oil solenoid valve 6 causes the second ball valve 9 to decline
Rise, diesel oil control chamber 23 can not pressure release and pressure rise, cause needle-valve 24 to decline, block high-pressure diesel from high-voltage oil cavity 47 and bavin
The channel of oily spray orifice 25, diesel oil stop injection.
The present invention is not limited to the above-described embodiments, anyone should learn make under the inspiration of the present invention with the present invention
With same or similar technical solution, fall within the scope of protection of the present invention.
Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (5)
1. a kind of natural gas diesel injector of new control model, including case of sprayer, electromagnetic valve for natural gas, diesel oil solenoid valve
And valve body, the case of sprayer are equipped with electromagnetic valve for natural gas, diesel oil solenoid valve and valve body, valve body and connect with case of sprayer
Place is equipped with intermediate, needle-valve and air valve is equipped in the valve body, it is high that case of sprayer is equipped with diesel oil high pressure oil inlet, natural gas
It is pressed into port and diesel oil back oil road, natural gas high pressure air inlet is by connection air flue and enclosure interior air flue through on intermediate
Mesosome air flue and valve body air flue are connected to annulus, and the annulus is through oil nozzle natural gas cavity and natural air cavity, by air valve and valve
It is connected to after body sealed seat surface with spray chamber, multiple natural gas spray orifices is equipped on valve body and are connected to spray chamber, electromagnetic valve for natural gas
It is connected to Air Valve Control chamber by the second oil duct, by controlling Air Valve Control cavity pressure, so that air valve guide sleeve be made to drive air valve
Rise, the natural gas for keeping natural gas intracavitary flows into spray chamber, is sprayed by natural gas spray orifice, the diesel oil high pressure oil inlet
High pressure oil be connected to through the high-pressure oil duct on intermediate with high pressure oil pressure accumulation chamber, high pressure oil pressure accumulation chamber enters high pressure oil by oilhole
Annulus, high pressure oil annulus are communicated by diesel oil feeding throttle orifice with needle control chamber, and needle control chamber passes through the fuel-displaced throttling of diesel oil
Hole and oil-through hole are connected with oil ring band is stored, and the intracavitary diesel oil of noticeable degree is oily to third by diesel oil fuel-displaced throttle orifice and oil-through hole
Pressure release in road, when diesel oil control cavity pressure decline, needle-valve rises, and high-pressure diesel is sprayed from high-voltage oil cavity by diesel oil spray orifice
It penetrates.
2. a kind of natural gas diesel injector of new control model according to claim 1, it is characterised in that: described natural
Pneumoelectric magnet valve, diesel oil solenoid valve are connected to by oil return cross-drilled hole, diesel oil back oil road with drainback passage.
3. a kind of natural gas diesel injector of new control model according to claim 1, it is characterised in that: the needle-valve
Occasionally match with air valve guide sleeve, form needle control chamber at the top of needle-valve, air valve guide sleeve is equipped with air valve meter in hole, diesel oil
Meter in hole and diesel oil fuel-displaced throttle orifice, air valve meter in hole are connected to high pressure oil pressure accumulation chamber, and high pressure oil pressure accumulation chamber passes through
Air valve meter in hole is connected to Air Valve Control chamber, is connected to by oilhole with high pressure oil annulus, by diesel oil feeding throttle orifice with
Needle control chamber connection, air valve guide sleeve are coupled with the contact surface of air valve using intracavitary fixation.
4. a kind of natural gas diesel injector of new control model according to claim 1, it is characterised in that: the air valve
Needle control chamber is collectively formed in guide sleeve and needle-valve coupling, and diesel oil feeding throttle orifice and diesel oil fuel-displaced throttle orifice are arranged at air valve
Effective control to needle valve movement response speed is realized on guide sleeve, while easy to process.
5. a kind of natural gas diesel injector of new control model according to claim 4, it is characterised in that: the air valve
The male part of guide sleeve and air valve can be realized and be closely contacted with each other and position, air valve and air valve during up and down motion
Guide sleeve keeps synchronizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109503.7A CN109058013A (en) | 2018-09-21 | 2018-09-21 | A kind of natural gas diesel injector of new control model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109503.7A CN109058013A (en) | 2018-09-21 | 2018-09-21 | A kind of natural gas diesel injector of new control model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109058013A true CN109058013A (en) | 2018-12-21 |
Family
ID=64763574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811109503.7A Pending CN109058013A (en) | 2018-09-21 | 2018-09-21 | A kind of natural gas diesel injector of new control model |
Country Status (1)
| Country | Link |
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| CN (1) | CN109058013A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645128A (en) * | 2019-11-07 | 2020-01-03 | 江苏科技大学 | Dual-fuel injector |
| CN113006991A (en) * | 2021-04-28 | 2021-06-22 | 一汽解放汽车有限公司 | Dual-fuel injector and vehicle |
| US11612670B2 (en) | 2020-05-18 | 2023-03-28 | Wangs Alliance Corporation | Germicidal lighting |
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| CN1425107A (en) * | 2000-04-18 | 2003-06-18 | 韦斯特波特研究公司 | Gaseous and liquid fuel injector with two-way hydraulic fluid control valve |
| CN103670852A (en) * | 2012-08-29 | 2014-03-26 | 卡特彼勒公司 | Dual check fuel injector with single actuator |
| CN103670850A (en) * | 2012-09-07 | 2014-03-26 | 卡特彼勒公司 | Dual fuel injector and common rail fuel system using same |
| CN105756826A (en) * | 2016-04-21 | 2016-07-13 | 哈尔滨工程大学 | Combined electromagnetic fuel oil injection and pressurizing electromagnetic fuel gas injection mixed fuel injection device |
| DE102015225073A1 (en) * | 2015-12-14 | 2017-06-14 | Robert Bosch Gmbh | fuel injector |
| CN209293945U (en) * | 2018-09-21 | 2019-08-23 | 英嘉动力科技无锡有限公司 | A kind of natural gas diesel injector of new control model |
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2018
- 2018-09-21 CN CN201811109503.7A patent/CN109058013A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425107A (en) * | 2000-04-18 | 2003-06-18 | 韦斯特波特研究公司 | Gaseous and liquid fuel injector with two-way hydraulic fluid control valve |
| CN103670852A (en) * | 2012-08-29 | 2014-03-26 | 卡特彼勒公司 | Dual check fuel injector with single actuator |
| CN103670850A (en) * | 2012-09-07 | 2014-03-26 | 卡特彼勒公司 | Dual fuel injector and common rail fuel system using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645128A (en) * | 2019-11-07 | 2020-01-03 | 江苏科技大学 | Dual-fuel injector |
| CN110645128B (en) * | 2019-11-07 | 2024-04-16 | 江苏科技大学 | Dual fuel injector |
| US11612670B2 (en) | 2020-05-18 | 2023-03-28 | Wangs Alliance Corporation | Germicidal lighting |
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| CN113006991A (en) * | 2021-04-28 | 2021-06-22 | 一汽解放汽车有限公司 | Dual-fuel injector and vehicle |
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