CN205001085U - Gaseous dual -fuel engine air intake manifold gas jet device - Google Patents
Gaseous dual -fuel engine air intake manifold gas jet device Download PDFInfo
- Publication number
- CN205001085U CN205001085U CN201520691909.6U CN201520691909U CN205001085U CN 205001085 U CN205001085 U CN 205001085U CN 201520691909 U CN201520691909 U CN 201520691909U CN 205001085 U CN205001085 U CN 205001085U
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- CN
- China
- Prior art keywords
- fuel gas
- intake manifold
- gas injection
- gas jet
- internal surface
- 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.)
- Expired - Fee Related
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Classifications
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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 utility model provides a gaseous dual -fuel engine air intake manifold gas jet device, including air intake manifold, natural gas injection solenoid valve, gas jet structure, cylinder head, gas jet device inner structure is venturi, and external frame processing has the air feed annular, and the gas jet structrual installation is in the junction of air intake manifold and cylinder head intake duct, and the gas jet solenoid valve is installed on gas jet structure top, and venturi's aditus laryngis is provided with the internal surface venthole, and the inner structure 0 of gas jet structure internal surface venthole is: the venthole arranges evenly along circular internal surface that the venthole is axisymmetric distribution mode along the solenoid valve central line, and the aperture increases along with the distance increase of keeping away from the natural gas injection valve. The utility model discloses can improve the natural gas and air mixing quality, optimize the combustion processes of engine, improve its economic nature and discharge performance.
Description
Technical field
The utility model relates to a kind of fuel gas ejecting device, particularly relates to a kind of gas/intake manifold of dual-fuel engine fuel gas ejecting device, belongs to technical field of engines.
Background technique
Day by day serious along with environmental pollution and fossil energy crisis, rock gas as the internal-combustion engine alternative fuel of a new generation by primary study.It is high that rock gas has calorific value, pollutes little, the feature of rich reserves.Current natural gas engine is divided into the single engine fuel of rock gas and duel fuel engine according to fuel type, for the supply mode of rock gas, mostly adopt ex-cylinder fuel supply mode both at home and abroad at present, intake manifold or intake manifold, gas injector is installed, for rock gas intake manifold spray regime, intake manifold installs venturi tube structure additional, cylinder is entered after combustion gas and air are inhaled into Venturi tube by negative pressure in cylinder, fully mixing of rock gas and air can be realized, mixing uniformity is good, but intake manifold's spray regime cannot meet the accurate control of every cylinder air fuel ratio, easily cause the situation that each cylinder air inlet is uneven, cause phenomenons such as catching fire, intake manifold's spray regime is slower for the reacting condition of operating mode in addition, pollute thing discharge amount higher, heat load is large.And rock gas manifold injection mode can make up the problems referred to above, but because intake manifold distance intake valve is nearer, rock gas and air mixture time shorter, rock gas mixes uneven with air, simultaneously, because natural gas density is lower than air, and the rock gas pressing close to intake duct wall causes flow velocity to decline due to gas viscosity, cause a large amount of gas accumulation in intake duct, air inlet is insufficient, and in cylinder, concentration gradient is excessive, causes burn deterioration, row's temperature rise, the emission performance of motor and economical decline.
Summary of the invention
The purpose of this utility model is on the basis in order to meet each cylinder intake uniformity, rock gas and air is better mixed in intake duct, and then improves engine combustion quality and provide a kind of gas/intake manifold of dual-fuel engine fuel gas ejecting device.
The purpose of this utility model is achieved in that and comprises intake manifold, cylinder head and fuel gas injection electromagnetic valve, also comprise fuel gas injection structure, the joint of the intake duct of described fuel gas injection structure installment in intake manifold and cylinder head, and described fuel gas injection structure comprises external frame and inner Venturi tube, the internal surface of external frame is provided with for compression, the top of described fuel gas injection electromagnetic valve framework mounted externally, Venturi tube internal surface is provided with the air outlet hole of a row different pore size.
The utility model also comprises some structure characteristics like this:
1. described in, one lists pore and to be evenly arranged and each air outlet hole is symmetrical arranged along the centerline axis of fuel gas injection electromagnetic valve along Venturi tube internal surface, and the aperture of air outlet hole increases successively along the direction away from fuel gas injection electromagnetic valve.
2. the surface of contact of the intake duct in the surface of contact of fuel gas injection structure and intake manifold, fuel gas injection mechanism and cylinder head is provided with seal ring.
Compared with prior art, the beneficial effects of the utility model are: by gas spraying injection device of the present utility model, by rock gas to air flue central-injection, collide with incoming air, strengthen the mixability of rock gas and air, simultaneously, Venturi tube has acceleration to mixed gas, can reduce the remaining amount of natural gas of air flue as far as possible, improve the burning quality of motor, improve fuel economy, reduce discharge.
Accompanying drawing explanation
Fig. 1 is general assembly structural representation of the present utility model; ;
Fig. 2 is general assembly structural front view of the present utility model;
Fig. 3 is the schematic diagram of spraying structure part of the present utility model;
Fig. 4 is the structural representation of Venturi tube of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Composition graphs 1 ~ 2, the technical solution of the utility model is achieved in that a kind of gas/duel fuel engine fuel gas ejecting device is by intake manifold 1, cylinder head 5, fuel gas injection electromagnetic valve 3, fuel gas injection Structure composing.The inside of fuel gas injection structure is Venturi tube 8, external frame 2 is processed with for compression 4, external frame 2 and inner Venturi tube 8 are passed through together with interference fit, the joint of fuel gas injection structure installment intake duct 6 in intake manifold 1 and cylinder head, be fastened by bolts, all lay seal ring between two surface of contact, prevent gas leakage.Fuel gas injection structure top end is provided with fuel gas injection electromagnetic valve 3, external frame 2 upper surface is equipped with the circular hole matched with fuel gas injection electromagnetic valve 3, snugly fit in fuel gas injection structure by pressing plate by fuel gas injection electromagnetic valve 3, fuel gas injection structure interior surface has the air outlet hole 7 of different-diameter.
Composition graphs 3, fuel gas injection structure is made up of external frame 2 and inner Venturi tube 8, external frame 2 and inner Venturi tube 8 are passed through together with interference fit, the upper and lower surface of fuel gas injection structure processes groove respectively, and being processed with bolt hole 9, fuel gas injection structure both sides are connected with intake manifold 1 with cylinder head 5 respectively, are fastened by bolts, all lay seal ring between two surface of contact, prevent gas leakage.Fuel gas injection structure interior surface is equipped with not identical four groups of jet apertures, 7, the four groups of air outlet holes 7 of equally distributed diameter along solenoid valve center line elongation line distribution mode axisymmetricly, and aperture increases with the distance away from fuel gas injection electromagnetic valve 3 and increases.
Composition graphs 4, spray into the rock gas for compression 4 by fuel gas injection electromagnetic valve 3, be injected in intake duct by air outlet hole 7, air outlet hole 7 is positioned at the aditus laryngis place of venturi nozzle, and it is perpendicular that the rock gas direction sprayed by air outlet hole 7 and the air of intake duct carry out flow path direction.In addition, in order to not affect the gas negotiability of intake manifold 1, the import and export cross-sectional width of venturi nozzle is consistent with intake duct 6 width in intake manifold 1 width and cylinder cap.
The utility model provides a kind of gas/duel fuel engine fuel gas ejecting device, and by intake manifold, fuel gas injection electromagnetic valve, fuel gas injection structure, cylinder head is formed.Described fuel gas injection inside configuration is Venturi tube, external process has for compression, fuel gas injection structure installment is in the joint of intake manifold and cylinder head intake duct, fuel gas injection structure top end is provided with fuel gas injection electromagnetic valve, the aditus laryngis of Venturi tube is provided with internal surface air outlet hole, the arrangement mode of fuel gas ejecting device internal surface air outlet hole is: air outlet hole is evenly arranged along rounded internal surface, air outlet hole is along the center line distribution mode axisymmetricly of fuel gas injection electromagnetic valve, and aperture increases with the distance away from fuel gas injection electromagnetic valve and increases.The utility model can improve rock gas and air mixing quality, optimizes the combustion process of motor, improves its Economy and emission performance.
The utility model can also comprise:
1, the inside of fuel gas injection structure is a venturi nozzle, and the aditus laryngis place of venturi nozzle has internal surface air outlet hole.
2, the aperture of the internal surface air outlet hole of the Venturi tube of described fuel gas injection structure is unequal.
3, the air outlet hole center of circle is in the same radial cross section of intake manifold.
4, air outlet hole is evenly arranged along rounded internal surface, and air outlet hole is along solenoid valve center line distribution mode axisymmetricly, and aperture increases with the distance away from fuel gas injection electromagnetic valve and increases.
5, to carry out flow path direction perpendicular for the jet direction that produces of air outlet hole and the air of intake duct.
Claims (3)
1. gas/intake manifold of dual-fuel engine fuel gas ejecting device, comprise intake manifold, cylinder head and fuel gas injection electromagnetic valve, it is characterized in that: also comprise fuel gas injection structure, the joint of the intake duct of described fuel gas injection structure installment in intake manifold and cylinder head, and described fuel gas injection structure comprises external frame and inner Venturi tube, the internal surface of external frame is provided with for compression, the top of described fuel gas injection electromagnetic valve framework mounted externally, Venturi tube internal surface is provided with the air outlet hole of a row different pore size.
2. a kind of gas/intake manifold of dual-fuel engine fuel gas ejecting device according to claim 1, it is characterized in that: described one lists pore to be evenly arranged and each air outlet hole is symmetrical arranged along the centerline axis of fuel gas injection electromagnetic valve along Venturi tube internal surface, and the aperture of air outlet hole increases successively along the direction away from fuel gas injection electromagnetic valve.
3. a kind of gas/intake manifold of dual-fuel engine fuel gas ejecting device according to claim 1 and 2, is characterized in that: the surface of contact of the intake duct in the surface of contact of fuel gas injection structure and intake manifold, fuel gas injection mechanism and cylinder head is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691909.6U CN205001085U (en) | 2015-09-09 | 2015-09-09 | Gaseous dual -fuel engine air intake manifold gas jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691909.6U CN205001085U (en) | 2015-09-09 | 2015-09-09 | Gaseous dual -fuel engine air intake manifold gas jet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001085U true CN205001085U (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520691909.6U Expired - Fee Related CN205001085U (en) | 2015-09-09 | 2015-09-09 | Gaseous dual -fuel engine air intake manifold gas jet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001085U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179111A (en) * | 2015-09-09 | 2015-12-23 | 哈尔滨工程大学 | Gas/dual-fuel engine intake manifold gas injection device |
| CN107676198A (en) * | 2017-11-17 | 2018-02-09 | 安庆中船柴油机有限公司 | A kind of fuel gas injection valve mounting structure of engine |
| CN115217699A (en) * | 2022-03-02 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle, fuel injector and control method thereof |
-
2015
- 2015-09-09 CN CN201520691909.6U patent/CN205001085U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179111A (en) * | 2015-09-09 | 2015-12-23 | 哈尔滨工程大学 | Gas/dual-fuel engine intake manifold gas injection device |
| CN107676198A (en) * | 2017-11-17 | 2018-02-09 | 安庆中船柴油机有限公司 | A kind of fuel gas injection valve mounting structure of engine |
| CN107676198B (en) * | 2017-11-17 | 2023-09-01 | 安庆中船柴油机有限公司 | Mounting structure of fuel gas injection valve of engine |
| CN115217699A (en) * | 2022-03-02 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle, fuel injector and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20210909 |