CN202338416U - Natural gas engine air intake layered injection device - Google Patents
Natural gas engine air intake layered injection device Download PDFInfo
- Publication number
- CN202338416U CN202338416U CN2012201244480U CN201220124448U CN202338416U CN 202338416 U CN202338416 U CN 202338416U CN 2012201244480 U CN2012201244480 U CN 2012201244480U CN 201220124448 U CN201220124448 U CN 201220124448U CN 202338416 U CN202338416 U CN 202338416U
- Authority
- CN
- China
- Prior art keywords
- egr
- cng
- layering
- air intake
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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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
- Y02T10/12—Improving ICE efficiencies
-
- 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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- Exhaust-Gas Circulating Devices (AREA)
Abstract
A natural gas engine air intake layered injection device belongs to the technical field of EGR (exhaust gas recirculation) air intake injection of CNG (compressed natural gas) engine, wherein the lower end of a layered outer pipe is in threaded connection with an upper hole; the top and bottom ends of a lower hole are in threaded connection with the lower end of a layered inner pipe and the inner end of an EGR air intake joint; the inner end of the EGR air intake pipe is fixedly connected at the outer end of a side hole of a three-way pipe; and the outer end of the EGR air intake pipe is in threaded connection with the inner end of the EGR air intake joint. The natural gas engine air intake layered injection device facilitates the layered wrapping of CNG, EGR and air, injects to the air inlet passage together with other mixing methods, can change the injection positions of the CNG and the EGR in the air inlet passage, technically ensures the application of the EGR technology on a CNG automobile, and drives reducing the emission of the other fuel engines, developing the new energy and popularizing the CNG automobile. The natural gas engine air intake layered injection device has a compact and reasonable structure, is convenient to mount, and is stable and reliable to use.
Description
Technical field
The utility model belongs to CNG engine EGR air inlet spraying technique field, is specifically related to a kind of device that motor CNG, EGR and air are sprayed into intake duct with mode and other hybrid modes of layering parcel.
Background technique
The growth of automobile pollution has brought problems such as environmental pollution and energy shortage; The R&D work of alternative motor fuels and EGR has extensively been carried out in countries in the world for this reason; Electric vehicle, gas-fueled vehicles, solar powered auto, hybrid vehicle and methanol and alcohol powered automobile etc. have appearred; Wherein gas-fueled vehicles with its low emission, break away from the dependence of oil and suppress this three big characteristic of greenhouse effect, just worldwide obtain popularizing and popularization, become an important directions of 21 century automobile industry development; And the discharging of technology reduction nitrogen oxide such as the general EGR technology that adopts of diesel engine is more technological than three-element catalytic, postponement igniting is more remarkable; And the technology change is little, and design freedom is big, thereby receives people's favor day by day.But the application of EGR technology on the CNG motor at present lacks air inlet layering spray regime, lacks fuel availability that improves the CNG motor to greatest extent and the technological scheme that reduces exhaust pollution.
Summary of the invention
The purpose of the utility model provides a kind of problem that layering is sprayed and other hybrid modes are sprayed to solve engine charge fuel, waste gas and air, thereby improves the fuel availability and the device that reduces exhaust pollution of CNG motor to greatest extent.
The utility model by manage 4 in EGR air input joint 1, EGR suction tude 2, layering outer tube 3, the layering, three-way pipe 5, CNG air input joint 6, nut I 7 and nut II 8 form, wherein three-way pipe 5 is provided with side opening a, goes up hole b and following hole c; Layering outer tube 3 lower ends are threaded with last hole b; Following hole c up and down two ends respectively with layering in pipe 4 lower ends and CNG air input joint 6 upper ends be threaded; EGR suction tude 2 the inners are fixed in the side opening a outer end of three-way pipe 5; And EGR suction tude 2 is concentric with side opening a, and EGR suction tude 2 outer ends are threaded with EGR air input joint 1 the inner; Nut I 7 is connected with EGR suction tude 2 thread surfaces with nut II 8.
The utility model stretches into the variable-length of intake duct: will overlap the interior pipe of the different layering of length 4 lower ends more and be threaded with the following hole c upper end of three-way pipe 5; Be threaded with the last hole b of three-way pipe 5 with different layering outer tube 3 lower ends of many covers length of pipe 4 equal length in the layering, pipe 4 is in layering outer tube 3 inner and concentric installations in the layering; CNG air input joint 6 upper ends are threaded with the c lower end, following hole of three-way pipe 5.
The utility model can conveniently be realized CNG, EGR and air stratification mode; Different hybrid modes with other spray into intake duct; And can change CNG and the EGR eject position in intake duct; And then make any three kinds of gaseous fuels can realize that all the different hybrid modes with other of layered mode spray into intake duct, and change eject position, the application on the CNG automobile can be played technique guarantee to the EGR technology; Also will reduce discharging and to the exploitation of new energy, and the popularization of CNG automobile plays a role in promoting to other engine fuels.The utility model compact structure, reasonable, easy for installation uses reliable and stable.
Description of drawings
Fig. 1 is the structural representation of natural gas engine air inlet layering injection apparatus
Fig. 2 is a natural gas engine air inlet layering injection apparatus axonometric drawing
Fig. 3 is the axonometric drawing of three-way pipe
Wherein: pipe 5. three-way pipe 6.CNG air input joints 7. nut I 8. nut II a. side opening b. go up hole under the c. of hole in 4. layerings of 1.EGR air input joint 2.EGR suction tude 3. layering outer tubes
Embodiment
Below in conjunction with accompanying drawing the utility model technological scheme is done further to set forth in detail:
Like Fig. 1,2, shown in 3; The utility model by manage 4 in EGR air input joint 1, EGR suction tude 2, layering outer tube 3, the layering, three-way pipe 5 and CNG air input joint 6 form; Wherein three-way pipe 5 is provided with side opening a, goes up hole b and following hole c; Layering outer tube 3 lower ends are threaded with last hole b, following hole c up and down two ends respectively with layering in pipe 4 lower ends and CNG air input joint 6 upper ends be threaded, EGR suction tude 2 the inners are fixed in the side opening a outer end of three-way pipe 5; And EGR suction tude 2 is concentric with the side opening a of three-way pipe 5, and EGR suction tude 2 outer ends are threaded with EGR air input joint 1 the inner.CNG air input joint 6 is in order to connect CNG gas inlet rubber tube and c bottom, 5 times holes of three-way pipe; EGR air input joint 1 is in order to connect EGR gas inlet rubber tube and EGR suction tude 2.
The utility model can be realized multiple working procedure:
The natural gas engine air inlet layering injection apparatus of the utility model is mounted in the air inlet resonant cavity of motor, and its layering outer tube 3 extend into intake duct, the process of starting working then with the interior pipe 4 of layering.
1. air, EGR and CNG wrap up injection layer by layer:
During work, CNG manages 4 injections then from the following hole c of CNG air input joint 6 inflow three-way pipes 5 in layering; EGR through EGR suction tude 2, flows into the side opening a of three-way pipe 5 from the EGR jointing, ejection between the pipe 4 in layering outer tube 3 and the layering again; Air flows between layering outer tube 3 and the intake duct from resonant cavity, realizes that the parcel layer by layer of CNG, EGR and air sprays.
2.EGR spray with mixed gas and the air stratification parcel of CNG
During work, CNG flows into the following hole c of three-way pipe 5 from CNG air input joint 6; EGR flows into from EGR suction tude 2, and CNG and EGR be mixing jetting in layering outer tube 3, and air flows between layering outer tube 3 and the intake duct from resonant cavity, realizes that the mixed gas of CNG, EGR and the parcel of air spray.
3.EGR spray with Air mixing gas and CNG layering
Layering outer tube 3 is not installed in this working procedure.Pipe 4 lower ends in the layering are threaded with the following hole c upper end of three-way pipe 5; The c lower end, following hole of three-way pipe 5 is threaded with CNG air input joint 6 upper ends, and EGR suction tude 2 outer ends are threaded with EGR air input joint 1 the inner; EGR suction tude 2 is fixed on the resonant cavity wall through nut I 7 and nut II 8, and EGR suction tude 2 is inner affixed with three-way pipe 5, and EGR suction tude 2 is concentric with side opening a.
During work, CNG is sprayed by pipe in the layering 4 from the following hole c of CNG air input joint 6 inflow three-way pipes 5; EGR flows into from EGR suction tude 2, and air flows between layering outer tube 3 and the intake duct from resonant cavity, and EGR, air mix between layering outer tube 3 and intake duct, realizes that EGR and Air mixing gas and CNG layering parcel sprays.
Claims (2)
1. natural gas engine air inlet layering injection apparatus; It is characterized in that being made up of pipe (4), three-way pipe (5), CNG air input joint (6), nut I (7) and nut II (8) in EGR air input joint (1), EGR suction tude (2), layering outer tube (3), the layering, wherein three-way pipe (5) is provided with side opening (a), goes up hole (b) and following hole (c); Layering outer tube (3) lower end is threaded with last hole (b); Following hole (c) two ends up and down is threaded on pipe (4) lower end and the CNG air input joint (6) respectively with in the layering; EGR suction tude (2) the inner is fixed in side opening (a) outer end of three-way pipe (5); And EGR suction tude (2) is concentric with side opening (a), and EGR suction tude (2) outer end is threaded with EGR air input joint (1) the inner; Nut I (7) is connected with EGR suction tude (2) thread surface with nut II (8).
2. by the described natural gas engine air inlet of claim 1 layering injection apparatus; It is characterized in that pipe (4) is dismantled and assembled in layering outer tube (3) and the layering; With three-way pipe (5), EGR suction tude (2), EGR air input joint (1), CNG air input joint (6) combination, can constitute independently injection apparatus respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201244480U CN202338416U (en) | 2012-03-29 | 2012-03-29 | Natural gas engine air intake layered injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201244480U CN202338416U (en) | 2012-03-29 | 2012-03-29 | Natural gas engine air intake layered injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338416U true CN202338416U (en) | 2012-07-18 |
Family
ID=46487108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201244480U Withdrawn - After Issue CN202338416U (en) | 2012-03-29 | 2012-03-29 | Natural gas engine air intake layered injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606277A (en) * | 2012-03-29 | 2012-07-25 | 吉林大学 | Air-inlet layering spraying device for natural gas engine |
| CN103670815A (en) * | 2013-12-20 | 2014-03-26 | 吉林大学 | Gasoline engine EGR stratified charge system based on flow guiding plate |
-
2012
- 2012-03-29 CN CN2012201244480U patent/CN202338416U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606277A (en) * | 2012-03-29 | 2012-07-25 | 吉林大学 | Air-inlet layering spraying device for natural gas engine |
| CN102606277B (en) * | 2012-03-29 | 2013-06-05 | 吉林大学 | Air-inlet layering spraying device for natural gas engine |
| CN103670815A (en) * | 2013-12-20 | 2014-03-26 | 吉林大学 | Gasoline engine EGR stratified charge system based on flow guiding plate |
| CN103670815B (en) * | 2013-12-20 | 2015-10-21 | 吉林大学 | Based on the petrol engine EGR stratified charge system of dumping-guiding plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120718 Effective date of abandoning: 20130605 |
|
| RGAV | Abandon patent right to avoid regrant |