CN114941566A - Stable combustion strengthening device for gas precombustion chamber - Google Patents
Stable combustion strengthening device for gas precombustion chamber Download PDFInfo
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- CN114941566A CN114941566A CN202210653866.7A CN202210653866A CN114941566A CN 114941566 A CN114941566 A CN 114941566A CN 202210653866 A CN202210653866 A CN 202210653866A CN 114941566 A CN114941566 A CN 114941566A
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- Prior art keywords
- gas
- precombustion chamber
- stable combustion
- fuel
- magnetic medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/02—Engines characterised by means for increasing operating efficiency
- F02B43/04—Engines characterised by means for increasing operating efficiency for improving efficiency of combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
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- 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
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention provides a stable combustion strengthening device of a gas precombustion chamber, which comprises a spark plug, a precombustion chamber inner wall, a magnetic medium and a precombustion chamber outer wall, wherein the spark plug is fixedly arranged above the precombustion chamber, the magnetic medium is filled between the precombustion chamber inner wall and the precombustion chamber outer wall, and the magnetic medium is arranged in the same polarity, so that an annular super-strong superposed magnetic field is formed on the circumference of the precombustion chamber; a pressure cavity is formed below the precombustion chamber, a jet hole is formed below the pressure cavity, and a jet port is arranged below the jet hole and used for passing jet flame; the precombustion chamber is used for flowing in fuel gas. The stable combustion strengthening device for the gas precombustion chamber disclosed by the invention has the advantages that the gas activity is excited by utilizing the polarization characteristic of the magnetic field, the detonation can be effectively inhibited, and the combustion stability of the low-octane fuel is improved.
Description
Technical Field
The invention belongs to the technical field of ignition engines, and particularly relates to a stable combustion strengthening device for a gas precombustion chamber.
Background
Under the background of energy conservation and emission reduction requirements and low-carbon fuel requirements, natural gas, ammonia gas, hydrogen gas and the like are increasingly emphasized. For example, the main component of natural gas is CH4, the ratio is more than 80%, the H/C ratio of methane is the highest among hydrocarbon fuels, and under the condition of releasing the same heat, the CO2 generated by combustion of the natural gas is 20-35% less than that of the traditional fuel gasoline and diesel oil, and the natural gas is a low-carbon fuel. Ammonia and hydrogen are zero-carbon fuels. However, such gas generally has the disadvantages of low volumetric efficiency, high ignition energy, slow flame propagation speed and the like, and the problems of insufficient dynamic property, unstable combustion, knocking and the like are prominent. The jet mode of the precombustion chamber is adopted, so that the flame propagation speed can be increased, the knocking tendency of an engine can be relieved, but the precombustion chamber has strong dependence on the design and working points, and the problems of difficult ignition, unstable combustion and the like exist under special working conditions such as low-temperature starting, low-speed and low-load and the like. Therefore, the ignition energy requirement is reduced, the fuel activity is improved, and the combustion stability performance of the gas engine under special working conditions such as low-temperature starting can be fundamentally improved. In 2015, 1 month, scientists at university of california brought graphene sheets close to the magnetic field of the insulator, and the graphene showed an abnormal hall effect phenomenon, so that graphene induced magnetism is realized.
Disclosure of Invention
In view of this, the present invention provides a stable combustion enhancing device for a gas pre-combustion chamber to reduce the gas knocking tendency and improve the combustion stability of a gas engine.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a stable combustion strengthening device of a gas precombustion chamber comprises a spark plug, a precombustion chamber, the inner wall of the precombustion chamber, a magnetic medium and the outer wall of the precombustion chamber, wherein the spark plug is fixedly arranged above the precombustion chamber, the magnetic medium is filled between the inner wall of the precombustion chamber and the outer wall of the precombustion chamber, and the magnetic medium is arranged in the same polarity, so that an annular super-strong superposed magnetic field is formed on the circumference of the precombustion chamber; a pressure cavity is formed below the precombustion chamber, a jet hole is formed below the pressure cavity, and a jet port is arranged below the jet hole and used for passing jet flame; the precombustion chamber is used for flowing in fuel gas.
Further, the magnetic medium is a composite magnetite graphene or alloy iron powder core.
Further, the alloy iron powder core is FeNi or FeSiAl.
Furthermore, the pressure cavity is of an inverted hollow round table structure.
Further, the jet hole is of a hollow cylindrical structure.
Further, the fuel gas is hydrocarbon gas fuel or zero-carbon gas fuel.
Further, the fuel gas is natural gas, liquefied petroleum gas, shale gas, hydrogen or ammonia gas.
Compared with the prior art, the stable combustion strengthening device for the gas precombustion chamber has the following advantages:
(1) the stable combustion strengthening device for the gas precombustion chamber provided by the invention utilizes the polarization characteristic of the magnetic field to excite the activity of the gas, can effectively inhibit detonation, and improves the combustion stability of low-octane fuel.
(2) The stable combustion strengthening device for the gas precombustion chamber disclosed by the invention forms a polar magnetic field through a magnetic medium such as composite magnetic graphene, and compared with the traditional external electromagnetic field technical means, the stable combustion strengthening device is flexible to control, small in occupied space, capable of reducing the design and processing difficulty of a cylinder cover and reducing the influence on the structural strength of a related engine.
(3) Compared with the auxiliary measures used in the existing high and cold environment, the stable combustion strengthening device for the gas precombustion chamber greatly reduces the occupied space, shortens the cold start time and improves the low-temperature start performance of a gas engine.
(4) The stable combustion strengthening device for the gas precombustion chamber improves the oil product adaptability of the engine and widens the operation area of the engine influenced by fuel supply.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a combustion gas pre-combustion chamber stable combustion enhancing device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the compression process gases entering the prechamber according to an embodiment of the invention.
Description of reference numerals:
1-a spark plug; 2-a precombustion chamber; 3-inner wall of the precombustion chamber; 4-jet hole; 5-jet orifice; 6-jet flame; 7-a pressure chamber; 8-a magnetic medium; 9-outer wall of precombustion chamber; 10-gas.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A stable combustion strengthening device for a gas precombustion chamber is shown in figures 1 and 2 and comprises a spark plug 1, a precombustion chamber 2, a precombustion chamber inner wall 3, a magnetic medium 8 and a precombustion chamber outer wall 9, wherein the spark plug 1 is fixedly arranged above the precombustion chamber 2, the magnetic medium 8 is filled between the precombustion chamber inner wall 3 and the precombustion chamber outer wall 9, and the magnetic medium 8 is arranged in the same polarity, so that a ring-shaped super-strong superposed magnetic field is formed on the circumference of the precombustion chamber 2; a pressure cavity 7 is formed below the precombustion chamber 2, a jet hole 4 is formed below the pressure cavity 7, a jet port 5 is arranged below the jet hole 4, and the jet port 5 is used for jetting flame 6; the prechamber 2 is used for the inflow of combustion gases 10. The stable combustion strengthening device for the gas precombustion chamber disclosed by the invention has the advantages that the gas activity is excited by utilizing the polarization characteristic of the magnetic field, the detonation can be effectively inhibited, and the combustion stability of the low-octane fuel is improved. The stable combustion strengthening device for the gas precombustion chamber disclosed by the invention forms a polar magnetic field through a magnetic medium such as composite magnetic graphene, and compared with the traditional external electromagnetic field technical means, the stable combustion strengthening device is flexible to control, small in occupied space, capable of reducing the design and processing difficulty of a cylinder cover and reducing the influence on the structural strength of a related engine.
The fuel gas 10 may be a hydrocarbon gas fuel such as natural gas, liquefied petroleum gas, shale gas, etc., or a zero-carbon gas fuel such as hydrogen gas, ammonia gas, etc.
The magnetic medium 8 can be a composite magnetite graphene or an alloy iron powder core, and the alloy iron powder core is FeNi and FeSiAl; the polar magnetic field formed by the magnetic medium 8 can excite the reaction activity of the gas 10 molecules in the precombustion chamber 2, and the ignition and combustion lag period is shortened. Because the fuel activity can be excited, the oil product adaptability of the engine is improved, and the operation area of the engine affected by fuel supply is widened.
In one embodiment, the pressure chamber 7 is an inverted hollow truncated cone structure. The jet hole 4 is a hollow cylinder structure.
Through optimizing the pressure chamber 7 with 4 structures of efflux hole, can further efflux flame 6 be in 5 propagation velocities of efflux mouth shorten the burning duration, reduce the gas detonation tendency, improve gas engine combustion stability.
The specific working principle of the stable combustion strengthening device for the gas precombustion chamber is as follows:
firstly, as shown in fig. 2, in the compression process of the engine, gas 10 enters the jet hole 4 through the jet orifice 5; after passing through the pressure cavity 7, the flow area is increased to generate negative pressure, and gas 10 flows into the precombustion chamber 2 by utilizing the pressure difference between the inside and the outside of the precombustion chamber; then, as shown in fig. 1, after ignition, the combustion gas 10 is ignited and passes through the prechamber 2, the pressure chamber 7, and the jet flame 6 is formed through the jet hole 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a device is reinforceed in stable burning of gas precombustion chamber which characterized in that: the magnetic medium is arranged in the same polarity, so that an annular super-strong superposed magnetic field is formed on the circumference of the precombustion chamber; a pressure cavity is formed below the precombustion chamber, a jet hole is formed below the pressure cavity, and a jet port is arranged below the jet hole and used for jetting flame; the precombustion chamber is used for flowing in fuel gas.
2. The stable combustion enhancing device for the gas precombustion chamber as claimed in claim 1, wherein: the magnetic medium is a composite magnetite graphene or alloy iron powder core.
3. The gas pre-combustion chamber stable combustion enhancement device of claim 2, wherein: the alloy iron powder core is FeNi or FeSiAl.
4. The stable combustion enhancing device for the gas precombustion chamber as claimed in claim 1, wherein: the pressure cavity is of an inverted hollow round table structure.
5. The stable combustion enhancing device for the gas precombustion chamber as claimed in claim 1, wherein: the jet hole is of a hollow cylindrical structure.
6. The stable combustion enhancing device for the gas precombustion chamber as claimed in claim 1, wherein: the fuel gas is hydrocarbon gas fuel or zero-carbon gas fuel.
7. The stable combustion enhancing device for the gas precombustion chamber as claimed in claim 5, wherein: the fuel gas is natural gas or liquefied petroleum gas or shale gas or hydrogen or ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210653866.7A CN114941566A (en) | 2022-06-10 | 2022-06-10 | Stable combustion strengthening device for gas precombustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210653866.7A CN114941566A (en) | 2022-06-10 | 2022-06-10 | Stable combustion strengthening device for gas precombustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114941566A true CN114941566A (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210653866.7A Pending CN114941566A (en) | 2022-06-10 | 2022-06-10 | Stable combustion strengthening device for gas precombustion chamber |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2052819U (en) * | 1989-07-17 | 1990-02-14 | 潘树明 | Pollution reducing energy saving device |
| JPH10220308A (en) * | 1997-02-03 | 1998-08-18 | Nitsuchiku Kikai Hanbai Kk | Device to reform and improve fuel, suppress discharge of hazardous material, and suppress consumption of fuel by rational alignment of magnet to dissolve environmental problem, such as air pollution |
| EP1408210A1 (en) * | 2002-10-09 | 2004-04-14 | Horst Dipl.-Phys. Meinders | Plasma ignition |
| EP1701419A1 (en) * | 2005-03-08 | 2006-09-13 | Veenstra- Glazenborg B.V. | A pre-chamber sparkplug, and combustion engine including a pre-chamber sparkplug |
| CN210343543U (en) * | 2019-05-20 | 2020-04-17 | 东莞市中能汽车节能科技有限公司 | Gasoline pipe magnetizer |
| US20210254543A1 (en) * | 2020-02-14 | 2021-08-19 | Vianney Rabhi | Valve ignition prechamber with a reversed directon of combustion |
-
2022
- 2022-06-10 CN CN202210653866.7A patent/CN114941566A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2052819U (en) * | 1989-07-17 | 1990-02-14 | 潘树明 | Pollution reducing energy saving device |
| JPH10220308A (en) * | 1997-02-03 | 1998-08-18 | Nitsuchiku Kikai Hanbai Kk | Device to reform and improve fuel, suppress discharge of hazardous material, and suppress consumption of fuel by rational alignment of magnet to dissolve environmental problem, such as air pollution |
| EP1408210A1 (en) * | 2002-10-09 | 2004-04-14 | Horst Dipl.-Phys. Meinders | Plasma ignition |
| EP1701419A1 (en) * | 2005-03-08 | 2006-09-13 | Veenstra- Glazenborg B.V. | A pre-chamber sparkplug, and combustion engine including a pre-chamber sparkplug |
| CN210343543U (en) * | 2019-05-20 | 2020-04-17 | 东莞市中能汽车节能科技有限公司 | Gasoline pipe magnetizer |
| US20210254543A1 (en) * | 2020-02-14 | 2021-08-19 | Vianney Rabhi | Valve ignition prechamber with a reversed directon of combustion |
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