CN109812355A - Compressed natural gas injector - Google Patents
Compressed natural gas injector Download PDFInfo
- Publication number
- CN109812355A CN109812355A CN201711160279.XA CN201711160279A CN109812355A CN 109812355 A CN109812355 A CN 109812355A CN 201711160279 A CN201711160279 A CN 201711160279A CN 109812355 A CN109812355 A CN 109812355A
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- mentioned
- plunger
- natural gas
- adjacent
- compressed natural
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to compressed natural gas injectors comprising: shell is mounted on the fuel supply pipe of engine；Needle-valve is mounted on the lower part of above-mentioned shell and has nozzle；Solenoid, be mounted on the inside of above-mentioned shell and be provided with receive power supply and generate magnetomotive force coil, according to above-mentioned magnetomotive force generate attraction tube core；Plunger is mounted on above-mentioned solenoidal lower part and moves back and forth；The injector further includes elastic component, which is equipped with: be adjacent to portion, positioned at above-mentioned plunger top and be formed parallel to the lower surface of above-mentioned tube core；Protruding portion protrudes obliquely to be formed upward toward the above-mentioned lateral direction for being adjacent to portion.
Description
Technical field
The present invention relates to a kind of compressed natural gas injectors, more particularly it relates to a kind of raising using gas
Behavior in service between the solenoid and plunger of the vehicle injector of fuel and the compressed natural gas spray for mitigating impact noise
Emitter.
Background technique
For economy and environment compatibility, liquefied petroleum gas (LPG), liquefied natural gas (LNG) or compressed natural gas
(CNG) etc the vehicle that gas is used as fuel is widely spread in recent years.The price of compressed natural gas (CNG) compares vapour
Oil is cheap and the fuel of each cylinder can be allowed evenly distributed since it is gaseous state, and exhaust is also compared to gasoline completely and in ring
Has advantage on guarantor.
Moreover, using compressed natural gas as motor vehicle fuel in use, hardly happen pinking since its octane number is higher,
Loss of lubrication is less and warming-up is very fast.Compressed natural gas is due to having more advantages and conduct compared to gasoline as earlier mentioned
Fuel is widely used in the business vehicle including taxi and bus.
These gas vehicles are atomized gaseous fuel and are supplied to the cylinder interior of engine, these gas with spray regime
Body vehicle then uses injector thus.Injector is then controlled by the electronic control unit (ECU) for being typically mounted on vehicle.Electronics control
Unit (ECU) processed controls the injection opportunity of injector based on the position of accelerator according to various external conditions.
Fig. 1 is the skeleton diagram for briefly showing the cross section structure of existing injector 10.
As shown in Figure 1, existing injector is provided with solenoid coil 13 and plunger 14 and allows solenoid coil by ECU
13 obtain driving plunger 14 to rise and be isolated with connector (nipple) 16 according to generated magnetic force after power supply, to make
The fuel flowed into from inflow entrance 11 is obtained to spray by spray-hole 17.
On the other hand, the plunger of existing injector is due to the magnetic force that generates when electromotive force is applied to solenoid and with towards pipe
The direction that core is adjacent to starts.Although piston reciprocation movement causes the impact between tube core and plunger and is equipped with elastic structure in order to prevent
Part, but existing buffer component is formed due to the area parallel of plunger and the abutting of tube core and by the magnetic force for remaining in plunger
(magnetizability) influences realize plunger reciprocating motion with can not be successfully.
Summary of the invention
The technical task of solution
Present invention seek to address that the above problem, the purpose of the present invention is improving the structure of the elastic component of plunger upper part, i.e.,
So that plunger is remained magnetic force also can provide elastic force with direction separate between tube core and plunger, so as to allow plunger smoothly to act
And it is able to prevent combustion-delaying phenomenon.
Solve the technical solution of project
Gas vehicle injector of the invention includes: shell, is mounted on the fuel supply pipe of engine；Needle-valve, peace
Mounted in the lower part of above-mentioned shell, there is nozzle；Solenoid, is mounted on the inside of above-mentioned shell and is provided with and receive power supply and generate
The coil of magnetomotive force, the tube core that attraction is generated according to above-mentioned magnetomotive force；Plunger, is mounted on above-mentioned solenoidal lower part and can be into
Row moves back and forth；The compressed natural gas injector further includes elastic component, comprising: portion is adjacent to, positioned at the upper of above-mentioned plunger
Portion and parallel with the lower surface of above-mentioned tube core；Protruding portion protrudes upward toward the above-mentioned lateral direction for being adjacent to portion and is in certain angle
Degree is obliquely installed.
Further, above-mentioned protruding portion is formed and in pairs on the above-mentioned top for being adjacent to portion according to a fixed spacing is isolator prominent
Ground is oppositely arranged.
Beneficial effect
Compressed natural gas injector of the invention is adjacent to portion, is being adjacent to equipped with what is be formed parallel between plunger and tube core
The top in portion protrudes obliquely the protruding portion to be formed toward lateral direction upward, thus plunger remains magnetic force can and tube core
It quickly isolates, therefore will not there is a phenomenon where fire extinguishings (loss of ignition) or even combustion-delaying.
Preferably, optionally and on the top for being adjacent to portion with a fixed spacing, protrusion forms multiple protruding portion, therefore can
Quantity by changing protruding portion adjusts elastic force.
Further, the protruding portion of prominent formation is provided on the top of elastic component, when solenoid is adjacent to plunger
Solenoid can be allowed to be isolated with plunger by feat of the elastic force of protruding portion, therefore can be in the sky of the installation reset spring of existing injector
Between formed flow path space and efficiently spray gaseous fuel.
Detailed description of the invention
Fig. 1 is the skeleton diagram for briefly showing the cross section structure of existing injector.
Fig. 2 is the cross-sectional view for showing the compressed natural gas injector of one embodiment of the invention.
Fig. 3 is the perspective view for showing the elastic component of one embodiment of the invention.
Fig. 4 is the perspective view for showing another embodiment of elastic component of the invention.
Appended drawing reference
100: shell 200: needle-valve
210: nozzle 300: solenoid
310: coil 320: tube core
400: plunger 500: elastic component
510: being adjacent to portion 520: protruding portion
1000: compressed natural gas injector
Specific embodiment
Technical idea of the invention is further illustrated with reference to the accompanying drawing.
Attached drawing is used for the purpose of further illustrating technical idea of the invention and an example illustrating, must not be
Technical idea of the invention is defined in attached drawing.
But in explaining the present invention, the correlation of known features or function is omitted in order to allow the gist of the invention clearing
Explanation.
Fig. 2 is compressed natural gas injector (the Injector for Compressed for showing one embodiment of the invention
Natural Gas) cross-sectional view.
As shown in Fig. 2, compressed natural gas injector 1000 of the invention includes shell 100, needle-valve 200, solenoid
(solenoid) 300, plunger (plunger) 400 and elastic component 500.
Firstly, above-mentioned shell 100 is mounted on the fuel supply pipe of engine, the inside of above-mentioned shell 100 is mounted with above-mentioned spiral shell
Spool 300, the above-mentioned plunger 400 that can be moved back and forth by above-mentioned solenoid 300, be set to above-mentioned solenoid 300 with it is upper
State the above-mentioned elastic component 500 between plunger 400.
Then, above-mentioned needle-valve 200 is mounted on the lower part of above-mentioned shell 100, has then been penetratingly formed in inside to combustion chamber
Spray the nozzle 210 of gaseous fuel.The lower surface of above-mentioned plunger 400 is supported on the top of above-mentioned needle-valve 200, above-mentioned plunger 400 into
Row moves back and forth and to be isolated between above-mentioned plunger 400 and above-mentioned needle-valve 200 and be sprayed by said nozzle 210 to combustion chamber
Penetrate fuel.
Above-mentioned solenoid 300, which is mounted on the inside of above-mentioned shell 100 and is provided with, to be powered on and generates magnetomotive force
Coil 310, the tube core (core) 320 that attraction is generated by above-mentioned magnetomotive force.
At this point, above-mentioned solenoid 300 is from ECU reception enabling signal (not shown) and electric current and generates magnetomotive force, it is above-mentioned
Tube core 320 has cylindrical shape and is mounted on the inside of above-mentioned shell 100, and above-mentioned coil 310 is fixedly mounted in above-mentioned pipe
The outer peripheral surface of core 320.
Moreover, above-mentioned plunger 400 is mounted on the lower part of above-mentioned solenoid 300, above-mentioned coil is applied to by feat of electromotive force
The magnetic force generated when 310 is started with the direction being adjacent to towards above-mentioned tube core 320.
Then, Fig. 3 is the perspective view for showing the elastic component of one embodiment of the invention.
Above-mentioned elastic component 500 of the invention includes: the portion that is adjacent to 510 as illustrated in fig. 3, positioned at above-mentioned plunger 400
Top and parallel with the lower surface of above-mentioned tube core 320；Protruding portion 520 is dashed forward upward toward the above-mentioned lateral direction for being adjacent to portion 510
It is obliquely installed out and at an angle.
Above-mentioned elastic component 500 can be formed by having the synthetic resin of elastic force or resin material.
Moreover, the lower part of above-mentioned elastic component 500 is installed and above-mentioned elastic component along the upper surface of above-mentioned plunger 400
500 top then formed it is above-mentioned be adjacent to portion 510, above-mentioned plunger 400 mitigates impact when mobile toward above-mentioned 300 direction of solenoid, on
State protruding portion 520 toward the above-mentioned outside for being adjacent to portion 510 upward prominent formed and above-mentioned plunger 400 and above-mentioned solenoid 300 it
Between elastic force is provided.
Also that is, above-mentioned solenoid 300 magnetizes in electric current flowing and attracts above-mentioned plunger 400, whens current interruptions, does not magnetize
And above-mentioned plunger 400 is fallen, so that the fuel opening and closing that above-mentioned plunger 400 rises or falls and constrains above-mentioned needle-valve 200 is dynamic
Make.
Preferably, the inside of the above-mentioned tube core 320 of above-mentioned solenoid 300 and above-mentioned plunger 400 is mounted with organic linking
Reset spring (not shown), therefore can have the sucking action for flexibly realizing above-mentioned plunger 400.
Electric current flows in above-mentioned solenoid 300 and magnetizes and attract above-mentioned plunger 400, in the electric current of above-mentioned solenoid 300
Do not magnetize when disconnected and above-mentioned plunger 400 and above-mentioned solenoid 300 are isolated, but in above-mentioned plunger 400 by above-mentioned solenoid
The magnetic force magnetizability for remaining in above-mentioned plunger 400 during 300 attractions can be present such that attraction remains.
Therefore, the lower part of above-mentioned elastic component 500 and the top of above-mentioned plunger 400 is with more wide contact area, but on
State the top of elastic component 500 toward the above-mentioned lateral direction for being adjacent to portion 510 protrude obliquely upward the protruding portion 520 to be formed then and
A part of the lower surface of above-mentioned solenoid 300 contiguously forms, so that above-mentioned plunger 400 can be from above-mentioned solenoid 300
It quickly isolates.
Also that is, being formd between above-mentioned solenoid 300 and above-mentioned plunger 400 equipped with the above-mentioned portion 510 and above-mentioned prominent of being adjacent to
Out the above-mentioned elastic component 500 in portion 520 and be able to mitigate impact and noise caused by the lifting of above-mentioned plunger 400, not only mention
Rise air-tightness, moreover it is possible to above-mentioned plunger 400 be allowed to quickly isolate with above-mentioned solenoid 300 and prevent the operating of injector wrong in advance
Accidentally.
At the same time, existing injector is installed spring between above-mentioned solenoid 300 and above-mentioned plunger 400 and is allowed above-mentioned
Solenoid 300 is isolated with above-mentioned plunger 400.But compressed natural gas injector 1000 of the invention above-mentioned solenoid 300 with
Above-mentioned elastic component 500 is formed between above-mentioned plunger 400 can also allow above-mentioned plunger 400 back and forth to be transported without configuring spring
It is dynamic, therefore form enough flow path spaces and efficiently can spray gaseous fuel to cylinder interior.
The present invention can be realized embodiment as the aforementioned, moreover it is possible to realize diversified embodiment as follows.
Fig. 4 is the perspective view for showing another embodiment of elastic component of the invention.
As shown in figure 4, above-mentioned multiple protruding portion 520 is prominent and pairs of with a fixed spacing on the above-mentioned top for being adjacent to portion 510
Ground is oppositely arranged.
On the basis of the center of above-mentioned elastic component 500, it can be formed in the above-mentioned upper surface for being adjacent to portion 510 a pair of or more
To the above-mentioned protruding portion 520 being oppositely disposed.The present invention does not limit the size and quantity of above-mentioned protruding portion 520, as long as being formed in
The size and quantity of the above-mentioned above-mentioned protruding portion 520 for being adjacent to 510 top of portion can adjust above-mentioned solenoid 300 and above-mentioned plunger
Elastic force between 400.
The present invention is not limited to the above embodiments, and the scope of application of the present invention is not only diversified, can also not depart from claim
Various change is carried out in the case of main idea of the present invention required by book.
Claims (2)
1. a kind of compressed natural gas injector, comprising:
Shell is mounted on the fuel supply pipe of engine；
Needle-valve is mounted on the lower part of above-mentioned shell and has nozzle；
Solenoid, is mounted on the inside of above-mentioned shell and is provided with and receive power supply and generate the coil of magnetomotive force, according to above-mentioned magnetic
Logical gesture generates the tube core of attraction；
Plunger is mounted on above-mentioned solenoidal lower part and can move back and forth；It is characterized in that, the compressed natural gas spray
Emitter further includes
Elastic component, the elastic component are equipped with: be adjacent to portion, positioned at above-mentioned plunger top and with the lower surface of above-mentioned tube core it is flat
It is formed capablely；Protruding portion protrudes obliquely to be formed upward toward the above-mentioned lateral direction for being adjacent to portion.
2. compressed natural gas injector according to claim 1, which is characterized in that
Multiple above-mentioned protruding portions isolator protrude according to a fixed spacing on the above-mentioned top for being adjacent to portion and are formed and set relatively in couples
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160279.XA CN109812355A (en) | 2017-11-20 | 2017-11-20 | Compressed natural gas injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160279.XA CN109812355A (en) | 2017-11-20 | 2017-11-20 | Compressed natural gas injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109812355A true CN109812355A (en) | 2019-05-28 |
Family
ID=66598085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711160279.XA Pending CN109812355A (en) | 2017-11-20 | 2017-11-20 | Compressed natural gas injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812355A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101103220A (en) * | 2004-09-15 | 2008-01-09 | 斯通瑞智控制装置公司 | Solenoid having reduced operating noise |
| CN102105671A (en) * | 2008-08-07 | 2011-06-22 | 株式会社京浜 | Gas fuel injection valve |
| KR20120008490U (en) * | 2011-06-01 | 2012-12-11 | 권태주 | Side feed type injector for gas fuel vehicles |
| CN105986937A (en) * | 2015-03-20 | 2016-10-05 | 大陆汽车***公司 | Gas direct injector with reduced leakage |
| CN206000643U (en) * | 2016-07-29 | 2017-03-08 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
-
2017
- 2017-11-20 CN CN201711160279.XA patent/CN109812355A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101103220A (en) * | 2004-09-15 | 2008-01-09 | 斯通瑞智控制装置公司 | Solenoid having reduced operating noise |
| CN102105671A (en) * | 2008-08-07 | 2011-06-22 | 株式会社京浜 | Gas fuel injection valve |
| KR20120008490U (en) * | 2011-06-01 | 2012-12-11 | 권태주 | Side feed type injector for gas fuel vehicles |
| CN105986937A (en) * | 2015-03-20 | 2016-10-05 | 大陆汽车***公司 | Gas direct injector with reduced leakage |
| CN206000643U (en) * | 2016-07-29 | 2017-03-08 | 东风商用车有限公司 | Straight-through type double-channel gas injection valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |
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| WD01 | Invention patent application deemed withdrawn after publication |