CN201144728Y - Biomass powder fuel internal-combustion engine - Google Patents
Biomass powder fuel internal-combustion engine Download PDFInfo
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- CN201144728Y CN201144728Y CNU2007201935331U CN200720193533U CN201144728Y CN 201144728 Y CN201144728 Y CN 201144728Y CN U2007201935331 U CNU2007201935331 U CN U2007201935331U CN 200720193533 U CN200720193533 U CN 200720193533U CN 201144728 Y CN201144728 Y CN 201144728Y
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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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- 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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
- Y02T50/678—Aviation using fuels of non-fossil origin
Abstract
The utility model provides a fuel combustion engine of biomass powder and relates to a novel internal combustion engine that adopts biomass flammable solid powder as the energy. The novel internal combustion engine comprises a gasification type powder combustion engine, a direct-injection type powder combustion engine and biomass flammable solid powder fuel. And the novel internal combustion engine is characterized by comprising a fuel preprocessing device, a mixer, a fuel spraying device, an emission processor and so on; the biomass powder fuel is made by processing plant residues and additives. The novel internal combustion engine has the positive effects of excellent economical efficiency, dynamic performance, high thermal efficiency, excellent controllability, excellent stability and so on. And the novel internal combustion engine has the characteristics of inexhaustible raw materials, cleanness, environmental protection and low price. Therefore, the novel internal combustion engine is suitable for power generation in rural areas, water drainage and irrigation, ships and automobiles, and other power devices, and has broad prospects.
Description
Technical field
The internal-combustion engine of powdered biomass fuel relates to the internal-combustion engine machine.
Background technique
The energy is the prerequisite and the basis of human survival and development, in the process of human civilization always with the kind of the used energy and utilize mode closely linked.At present the mankind depend on for existence and the primary energy that carries out economic construction mainly is a fossil energy.The use of fossil energy not only has huge destruction to environment, and growing along with global energy consumption, and fossil energy reduces rapidly.Since the Gulf War, constantly soaring as the oil price of the internal-combustion engine energy, energy problem is the important problem of pendulum in face of us.Because tellurian petroleum resources are limited, as yet not before the exhaustion, we seek and replace the paces of the energy to accelerate at petroleum resources.
The scientists of various countries is being sought in the new energy of substitute material of fuel of internal combustion engine, and common has 5 kinds: 1. rock gas: as far back as the sixties in 19th century, the Frenchman just used the motor of making fuel with coal gas.The octane value height of rock gas, little to the pollution level of air, and also engine start is good in the winter time.Existing in the world 1,800,000 automobiles are used the rock gas fuel that is used as power instead.But rock gas can not be regenerated, and still can use up, and the equipment of natural gas filling station is bigger and expensive than the equipment of common gas station.2. hydrogen: liquid hydrogen is a kind of good fuel.The automobile of fuel has now appearred doing with hydrogen.The shortcoming of liquid hydrogen is that density is too little, and boiling point is too low.3. alcohol: methyl alcohol in the alcohol and ethanol are the most real Competitors of gasoline.It is very not abundant that difficulty is to refine the raw material of alcohol.Japanology is made raw material with marine alga, and Norway's research is refined alcohol with acerose timber, and Mexico successfully extracts alcohol from cactus, and New Zealand adopts the orange skin to refine automotive fuel, and wins initial success.According to measuring and calculating, 1 square metre of plant can extract 1 kilogram fuel, is 3 times of present gasoline cost.4. water: it is found that water mixing is respond well in fuel oil.Experiment showed, that generally to add water 10% the most desirable.But water can only be to mix the people in fuel oil on a small quantity, can not replace fully.5. naphthalene benzene fuel combination: people know with naphthalene already and make fuel.The twenties in 20th century, the someone did to mix the test of making fuel with the benzene of 15% naphthalene and 85%, and engine running is good in the use.The octane value of naphthalene can be compared with top-quality benzene.As long as add a certain amount of naphthalene, its effect is just very remarkable.But the price of naphthalene is much more expensive than gasoline.The substitute material of above-mentioned fuel oil cuts both ways, and also has certain problem in applying.As seen, in the prior art, adopt gas and liquid more, adopt the solid combustible powder but seldom as motor fuel as the research of motor fuel.
The sun is an inexhaustible energy treasure-house, its per second be delivered to ground energy up to 80,000,000,000,000 in watt, be equivalent to the energy of 5,500,000 tons of coals.The photosynthesis of green plants is that chemical energy is a best means of fixedly utilizing solar energy with conversion of solar energy.The exploitation biomass energy is a kind ofly to make full use of the elemental strategy of standing years tests most and certainly select.According to estimation, tellurian plant, annual by catching and store solar energy, produce more than 1,000 hundred million tons cellulose and millions of glycan molecule and lignin.Biomass energy is the cleanest cheap energy.China is large agricultural country, and annual crop stalk the like waste reaches more than 1,000,000,000 tons, but a large amount of crop stalks does not have fine utilization, much at the edge of a field on-site incineration, Dark smoke billows, blots out the sky and cover up the earth, not only cause environmental pollution, also can influence the normal flight of aircraft.Straw gasifying technology and biogas technology have had greatly improved since using.But prior art is still very low to the utilization ratio of plant energy.
About the utilization of biomass energy, be subjected to the great attention of various countries in recent years, in the German renewable sources of energy, bioenergy is arranged as power fuel.The kind of biodynamic fuel is more, mainly contains biodiesel, biological sugar alcohol, biogas, biological methanol, vegetable oil, synthesising biological power fuel etc.Moral has been put into effect biodynamic fuel compensatory approach since 2005, makes the biodynamic price of fuel than every liter of cheap 10 Europe branches of ordinary diesel oil.Biodynamic fuel refines from plant cellulose, can be used as power fuel, also can make additive.German Annual output in 2004 is 3.4 ten thousand tons; 2005 Annual output have reached 500,000 tons.In order to alleviate global warming, Britain begins to seek biological energy source generating and heat supply, utilizing the plant generating is the means that well reduce greenhouse effect, control global warming, the ratio to 2010 of Britain plan renewable energy power generation year reaches 10%, double again to the year two thousand twenty, studies show that and utilize living beings can reduce 3 * 10 every year
6The discharging of t carbon is equivalent to the discharging of 3,250,000 automobiles.
Biofuel is to conduct a research in recent years and use New-type fuel, because the use of fossil energy (oil, coal, rock gas etc.) faces two serious problems, one: reserves are limited, will face energy crisis in the long run; Its two: the use of fossil energy is to the considerable damage effect of environment.Therefore people's renewable energy sources of seeking to clean and utilize technology is subjected to paying close attention to widely.Living resources are the fourth-largest energy that is only second to coal, oil, rock gas as a kind of metastable renewable resources, utilization in these living beings of China is day by day paid attention to by people, under such background, development biomass energy transformation technology, make it to become high-grade energy and other products, have broad prospects.
The powdered biomass Study on Combustion Characteristics, for the research of bioenergy, development in recent years is very fast, utilize the living beings of nature such as trees, bamboo, straw, grass etc. are raw material, and making becomes fine-grained particles fuel, and the combustion characteristic of fine-grained particles is studied.For improving the utilization ratio of solid particle fuel, feasible burning becomes an important field, process, fundamemtal phenomena, mechanism to burning are studied, because the complexity of solid particle fuel burning, be difficult to obtain stable, uniform result, so the fundamental research of the burning of relevant dust granules fuel, flame propagation structure, the mechanism of transmission comes into one's own.All obtained valuable progress as different materials, size of grain, density size, combustion characteristic research under different condition.
The utility model is intended to transform for internal-combustion engine on the basis of these early-stage Study, and making powdered biomass is that the internal-combustion engine of fuel becomes a reality, used, this renewable biomass pulverized fuel that enjoys favor, become the environmental protection energy for internal-combustion engine, be applied on the motor.Can foretell that we will welcome the New Times of a pulverized fuel internal-combustion engine.
Summary of the invention
The utility model is exactly at the problems referred to above; design a kind of powdered biomass fuel combustion; this is the Depth Study that solar energy and plant energy utilize, and splits the innovation energy and protects environment that positive effect is all arranged, and has important significance for theories and social economic value.By retrieving domestic and international patent documentation and Relational database, not found from the data that searches out has identical research.
Internal-combustion engine is that fuel produces heat energy at the engine air in-cylinder combustion, is converted into the dynamic power machine of mechanical energy.It comprises crankshaft ﹠ connecting, distribution device, fuel system, lubricating system, cooling system, control system etc.Usually the fuel of internal-combustion engine comes from oil, is the diesel engine that is called of fuel with diesel oil, the gasoline-fueled petrol engine that is called.
Scheme of the present utility model is to be fuel with the biomass solid powder, so be called the powder machine, comprises fuel preprocessor, mixer, the fuel spray explosive motor for device and discharging processor.Burn generation heat energy with pulverized fuel in cylinder combustion, be converted into mechanical energy, promote the device of engine rotation.
Described biomass solid powder mainly is the powder of plant residues, also can be the combustible waste material powder.Add that suitable additive makes.Along with the development of superfine powder processing technique, be that the motor of fuel has become possibility with the powdered biomass.The particle diameter of combustible powder can be decided with different engine structures according to different raw materials.Different raw material have certain influence to optimum grain-diameter.The powder of plant residues such as crops tangerine bar, sawdust, rice husk, leaf, faggot etc.Combustible waste material such as plastic powders, paper scrap powder and metallic dust etc.Use modern crushing technology and block, be ground into enough little particle, the particulate of then making.The structural form of different grain size particulate, interior pore size distribution and combustion characteristic tested drawing, gasification type powder internal-combustion engine, if adopt crop stalk, general particle diameter is less than 10 millimeters.Combustible solid adopts coal dust, and general particle diameter is less than 3 millimeters.Toroidal swirl type powder internal-combustion engine, general combustible solid particle diameter is less than 5 microns.
Described additive in the biomass solid powder comprises flow dispersion agent, desulfurization deamidization, combustion-supporting oxygenant etc., to promote flow of powder, promotes evenly to disperse, and promotes burning, reduces blowdown, improve controllability and moment velocity of combustion.
Described suitable powdered biomass is the explosive motor of fuel, is the transformation to original explosive motor.Comprise cylinder, piston, connecting rod, bent axle, inlet and exhaust valve, sensor, automatic control unit etc.Be divided into gasification type powder internal-combustion engine and two kinds of methods of toroidal swirl type powder internal-combustion engine.Generally be provided with fuel preprocessor, mixer, the spray of automatically controlled fuel for device, discharging processor etc.Powdered biomass is carried out pretreatment,, control the T/A of fuel spray confession, then the dust after the burning is filtered, to arrive the blowdown requirement of respirable dust then according to the different operating modes of motor.
Gasification type powder internal-combustion engine comprises feeding device, gasification type fuel preprocessor, air fuel ratio regulator, automatic control unit, discharging processor etc.Gasification type fuel preprocessor is made up of gasification oven, feeding system, cyclone separator, tar processor, blower fan etc.It to the control of gasification oven feed amount and air quantity, makes the interior pulverized fuel of gasification oven according to the requirement of motor under action of high temperature, generates CO, H
2, CH
4, C
mH
nDeng the inflammable gas of forming and the combustible solid particulate of suspension,, by suitable air fuel ratio, mix the back supply engine with air by the air fuel ratio regulator through cyclone separator, tar processor.
Toroidal swirl type powder internal-combustion engine comprises that fuel preprocessor, the spray of automatically controlled fuel are for device and discharging processor.The fuel preprocessor is in the container of oxygen barrier sealing, to pulverized fuel heat, pretreatment such as loose, vaporization, make combustible powder be fit to clean-burning characteristic of moment through the fuel preprocessor, and be added with suitable additive, the burning mixture that combustible powder is become a bit be, supply device direct injection powder, supply engine by automatically controlled fuel spray.Automatically controlled fuel spray connects the fuel preprocessor for device one tunnel, supplies with through pretreated pulverized fuel; Another road connects pressurized air; One the tunnel connects automatic controller and supplies with the action command signal again, regulates spray for what of fuel quantity with spout open-interval length.
Mixer; At first to the calculating of the oxygen balance value of the abundant fuel of various combustible solid powder, measure the energy that different powder optimal air-fuel ratios and every gram powder fully burn and discharged, under certain conditions such as temperature, pressure, the velocity of combustion of different powder and point of ignition pH-value determination pH, with the optimal air-fuel ratio of the abundant fuel of energy, the ratio of configuration air and fuel.
Discharging processor: because after the pulverized fuel burning, having a spot of dust produces, in order to make the effulent compliance with environmental protection requirements, on exhaust duct, silencing apparatus is provided with discharging processor through the next door, through bump, interception, diffusion, make the ashes after the burning be captured and filter, the discharge amount of control inhalable particulates dust.Control CO, CH, NO
XDischarge amount with the inhalable particulates dust.
In order to reduce cylinder sleeve and wearing for piston, the top is set the hole, and the piston in chamber, camber hole, bottom makes it produce extruding swirl in the firing chamber, forms turbulent flow, improves mixed gas and forms, and quickens flame propagation, promotes thorough exhaust, reduces dust and stops on cylinder wall.
External characteristic curve and different pulverized fuel moment velocity of combustion measured load according to motor from the angle of Economy, power character, Security and the feature of environmental protection, are provided with various parameters, select air fuel ratio, compression ratio and firing time.Be suitable for the various improvement of the motor of combustible powder.
The utility model is the fuel of motor with the powdered biomass, is the cleanest a kind of cheap energy.The powdered biomass internal-combustion engine has structure letter, program is short, volume is little characteristics, has better economic, power character, the higher thermal efficiency, and good controllability and stability etc. are effect actively.
Description of drawings
Fig. 1 is embodiment 1, gasification type powder explosive motor.Fig. 2 is embodiment 2, jet-type powder explosive motor.Fig. 3 is a powder explosive motor pothole piston.Fig. 4 is a cylinder injection type powder explosive motor firing chamber schematic representation.
Embodiment
Embodiment 1, and gasification type powder explosive motor comprises feeding system, gasification type fuel preprocessor, air fuel ratio regulator (18), automatic control unit (15), discharging processor (40) etc., as shown in Figure 1.
Adopt crop stalk, be processed to particle diameter in advance less than 10 millimeters, water content is lower than 12% powder.And add 2.5% additives such as dolomite dust, as powdered biomass fuel (2).
Feeding system is made up of hopper (1), loader (7), feed controller (6), spout (8) etc.Feed controller (6) according to the instruction of automatic control unit (15) in good time pulverized fuel (2) for gasification oven (3).
The fuel preprocessor is made up of gasification oven (3), cyclone separator (4), tar processor (5), blower fan (13), blast regulator (14) etc.Gasification oven (3) is equipped with igniter (9), grate (10), cinder-discharging port (12) etc.During starting, when pulverized fuel (2) entered gasification oven (3), fuel was lighted by igniter (9), in the burning of the top of grate (10), the live charcoal after the burning rest on grate (10) about, ash quarrel (11) concentrates near the cinder-discharging port (12).Because the control of feed amount and air quantity, the pulverized fuel (2) of the interior anoxic of gasification oven (3) under action of high temperature, generate CO, H
2, CH
4, C
mH
nDeng the inflammable gas of forming and the combustible solid particulate of suspension.Through cyclone separator (4), send gasification oven (3) back to separating greater than 5 microns coarse granule, again through tar processor (5), reduction along with temperature, further the coarse granule greater than 5 microns is come out to send back to gasification oven (3) with the component separating that condenses into liquid, these tar ingredients at high temperature can resolve into micromolecular Permanent gas supply engine (16), the liquid that condenses into of failing to decompose is sent gasification oven gasification, reciprocation cycle again back to.
Air fuel ratio regulator (18) is made up of fuel-control unit (17), air flow sensor (19), throttle sensor (22) etc.According to the requirement of motor, fuel and air that the fuel preprocessor is supplied with mix back supply engine (16).When the piston (21) of motor (16) was descending, mixed gas entered cylinder through intake valve (23), by discharging through discharging processor from exhaust valve (25) after spark plug (24) the igniting work done.
Automatic control unit (15) is handled the signal of air flow sensor (19), throttle sensor (22), temperature transducer (20), gas exhaust manifold lambda sensor (26), intake manifold pressure sensor (27), feed, air quantity, air fuel ratio are regulated, to guarantee motor (16) proper functioning.
Combustible solid is processed to particle diameter in advance less than 5 microns, and water content is lower than 5%, and the micropowder fuel of a small amount of additive is arranged.Pulverized fuel (2) is stored in the fuel tank (53), the fueling preprocessor (50) that transfer pump (52) is in good time according to the instruction of automatic control unit (15).Between transfer pump (52) and fuel preprocessor (50), be provided with one-way valve, in order to avoid flow backwards through pretreated fuel.Lead to automatically controlled fuel spray for device (32) through pretreated fuel.
Automatically controlled fuel spray is divided into in-cylinder injection (as Fig. 4) for device (32) and cylinder sprays (as Fig. 2) two kinds outward.Generally have three the road to insert, one tunnel fuel inlet (60) is connected with fuel preprocessor (50) to be supplied with through pretreated pulverized fuel; Another road compressed air joint (58) is connected with gas cylinder (42) supplies with pressurized air.For compressed-air actuated degree of purity, on gas circuit, be provided with air cleaner (43); One road electric connection (59) is connected supply action command signal with automatic controller (46) again.How many sprays is to regulate with spout open-interval length for fuel quantity.Adopt the air pressure of air pump (41), gas cylinder (42) to carry out the spray confession of fuel, not only help the dispersion and the atomizing of fuel, and make the supercharging of cylinder charge, also help the raising engine power.
Automatic controller (46) carries out calculation process to signals such as the pressure transducer (31) of the lambda sensor (38) of the temperature transducer (36) of Air flow meter (29), engine load sensor (30), water jacket, row's jet supply gas manifold, intake manifold, crank positions, spray was regulated for time and air fuel ratio, to guarantee the motor proper functioning.
Because pressed powder enters cylinder as fuel, and the dust after the burning, can aggravate the wearing and tearing of cylinder liner and piston ring groove (54), all the firing chamber there is higher requirement, present embodiment adopts pothole piston (35) method (as shown in Figure 3).A square hole (57) is opened at top (56) in piston (35), and a recessed chamber, camber hole (55) is opened in the bottom, and the area in chamber, camber hole (55) is greater than the square hole (57) of top (56).When the spray of automatically controlled fuel for device (32) to in-cylinder injection or piston (35) when moving up and down, produce strong extruding swirl, simultaneously because the firing chamber of square top and round bottom structure, cause the speed difference of air motion, can form stronger turbulent flow, form, quicken flame propagation to improve mixed gas, promote that exhaust is thorough, reduce the stop of dust on cylinder wall.So the pothole piston method also is very necessary to internal-combustion engine of combustible powder.
Because after the pulverized fuel burning, having a spot of dust produces, in order to make the effulent compliance with environmental protection requirements, on exhaust duct, silencing apparatus (39) next door is provided with discharging processor (40), through bump, interception, diffusion, make the ashes after the burning be captured and filter, the discharge amount of control inhalable particulates dust.Owing to increasing of the particle that deposits along with discharging processor on the exhaust duct (40), the minimizing of flux can make the exhaust back pressure of motor improve, and power descends.Therefore must regularly remove the particle in the discharging processor (40).
Because pulverized fuel enters before the cylinder, must therefore when starting cold, open preheating switch (48) earlier through the fuel heat treated, make Preheating unit to be set fuel is heated.During proper functioning, Preheating unit quits work, and gas exhaust manifold and fuel preprocessor (50) link (as shown in Figure 4), utilizes the high temperature of exhaust that fuel is carried out preheating and heats.
Advantage of the present invention
1. inexhaustible: owing to adopted plant residue, agricultural crop straw etc., the source of raw material is abundant. Solve mankind's 21 century face The problem of energy crisis of facing, as long as the sun also exists, just meaning has inexhaustible fuel.
2. clean environmental protection: because employing straw wood bamboo grass all is clean fuel, coal is pulverized and the desulfurization processing, to reach To instructions for use and environmental emissions requirement. Be CO after the burning2With H2O, non-pollutant discharge. The utilization of a large amount of discarded objects, useless Combustible waste accounts for very big proportion in the gurry, and discharging processor is set the ashes of burning are filtered, control CO, CH, NOXDischarge capacity with the inhalable particulates dust. Make emission meet environmental requirement, the environmental contamination reduction problem.
3. cost price is low: owing to adopted combustible waste material, draw materials easily, easy to process, extensive market can form industry Change large-scale production, so cost price is cheap.
4. program letter, volume is little: because the flammable solid powder and the fuel gas that suspend enter internal combustion engine together, broken through traditional The air supply method of the simple combination of gasification installation and gas internal-combustion engine has been simplified program, has dwindled volume, makes internal combustion engine more Meet real requirement.
The present invention is suitable for the rural area generating, the water conservancy irrigation and drainage, and steamer automobile equal power device has wide market prospects.
Claims (4)
1. powdered biomass fuel combustion, comprise crankshaft ﹠ connecting, distribution device, fuel system, lubricating system, cooling system, control system etc., it is characterized in that: form for device and discharging processor by fuel preprocessor, automatic controller, the spray of automatically controlled fuel, comprise that one the tunnel connects the fuel preprocessor, another road connects pressurized air, and the one tunnel automatically controlled fuel that connects automatic controller sprays supplying apparatus again.
2. powdered biomass fuel combustion as claimed in claim 1 is characterized in that: gasification type fuel preprocessor is made up of gasification oven, feeding system, cyclone separator, tar processor, blower fan.
3. powdered biomass fuel combustion as claimed in claim 1 is characterized in that: on exhaust duct silencing apparatus limit, discharging processor is set.
4. powdered biomass fuel combustion as claimed in claim 1 is characterized in that: have the top to have the hole in the firing chamber, the piston in chamber, camber hole, bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201935331U CN201144728Y (en) | 2007-11-02 | 2007-11-02 | Biomass powder fuel internal-combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201935331U CN201144728Y (en) | 2007-11-02 | 2007-11-02 | Biomass powder fuel internal-combustion engine |
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| CN201144728Y true CN201144728Y (en) | 2008-11-05 |
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| CNU2007201935331U Expired - Fee Related CN201144728Y (en) | 2007-11-02 | 2007-11-02 | Biomass powder fuel internal-combustion engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787907A (en) * | 2012-08-27 | 2012-11-21 | 查世红 | Dust engine |
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2007
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787907A (en) * | 2012-08-27 | 2012-11-21 | 查世红 | Dust engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HONGYANG CONSTRUCTION GROUP CO.,LTD. Free format text: FORMER OWNER: CHEN LIJUN Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: No. 1388, Shuangbai Road, Shanghai, Minhang District: 201108 Patentee after: Hongyang Construction Group Co., Ltd. Address before: Hangzhou City, Zhejiang Province, Wenyi road Xihu District high education village 4-2-701, zip code: 310012 Patentee before: Chen Lijun |
|
| 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: 20081105 Termination date: 20161102 |