CN101915147A - Combustion motor and stirling compound engine - Google Patents
Combustion motor and stirling compound engine Download PDFInfo
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- CN101915147A CN101915147A CN2010102497311A CN201010249731A CN101915147A CN 101915147 A CN101915147 A CN 101915147A CN 2010102497311 A CN2010102497311 A CN 2010102497311A CN 201010249731 A CN201010249731 A CN 201010249731A CN 101915147 A CN101915147 A CN 101915147A
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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
Abstract
The invention relates to an engine compounded by combustion motor and stirling engine. Combustion motor and stirling engine are in the same machine body, the exhaust pipe of the combustion motor is connected with the heater of the stirling enging in series, exhaust of the combustion motor is taken as high temperature heat source of the stirling engine, and power produced by the two engines is used for driving the same crankshaft. Working medium in the stirling engine passes through closed circulation loops, each loop is composed of an expanding cavity, a piston, a compression cavity, a heat regenerator, a cooler and a group of heating tubes which are sequentially connected. The processes of working medium when doing work in the circulation loop are the same, namely the working medium absorbs heat of exhaust of the combustion motor and then is expanded in the expanding cavity, the piston is driven to move downward, and the crankshaft is driven to do work. The invention has the characteristic that stirling engine can absorb waste heat of exhaust of combustion motor to the utmost extent. Compared with the traditional combustion motor waste heat recycling device, the invention can cause mean effective power of diesel engine to be increased by 10% under the same fuel consumption condition.
Description
Technical field
The invention belongs to engine technology, be specifically related to a kind of by internal-combustion engine and the compound motor of forming of Stirling engine.
Background technique
Along with the progressively strictness of petroleum-based energy shortage and Abgasgesetz, the energy-saving and emission-reduction problem is also more and more paid close attention to.Seeking high efficiency, the free of contamination energy, advance the method for energy second use and research energy recovery conversion, all is the effective way that reduces energy waste, improves energy utilization rate.The energy that the motor fuel burning is produced approximately has only about 1/3 to be used effectively, and remaining all is lost in the atmosphere, wherein the lost shared energy also nearly 1/3 of exhaust.Therefore effectively utilizing internal combustion engine waste gas energy, is energy-saving and emission-reduction, the effective measure that improves engine thermal efficiency.
At present the approach recycled of afterheat of IC engine mainly contains: turbocharging technology, waste heat air-conditioning, utilize the exhaust energy thermo-electric generation, reclaim exhaust energy etc. based on Rankine cycle.But these methods respectively have its narrow limitation.Supercharging technology can only utilize the portion of energy of exhaust, and the exhaust of turbine outlet still has higher temperature, has value once more; The waste heat air-conditioning technical does not have the output of merit, and capacity usage ratio is low; Thermo-electric generation then is subject to the development of technology such as material, and conversion efficiency of thermoelectric is low; Adopt Rankine cycle to reclaim exhaust energy, system complex, volume and weight all is difficult to reach requirement.The Stirling engine compact structure, but the scheme efficient of the Stirling engine that utilizes at present recovery engine exhaust gas waste heat is still lower, proposition of the present invention can make waste heat of internal combustion engine be utilized more fully, improve the thermal efficiency of motor, reduce the oil consumption of motor significantly, improve the power character of motor.
Summary of the invention
The objective of the invention is, provide a kind of by internal-combustion engine and the compound motor of forming of Stirling engine, utilize the high temperature heat source of the exhaust of motor as Stirling-electric hybrid, the work of drive Stirling engine, and with internal-combustion engine with same bent axle outputting power, reach and improve the used heat utilization ratio, improve the purpose of engine power performance.
Below in conjunction with accompanying drawing structural principle of the present invention is described.The present invention includes internal-combustion engine and Stirling engine and heater, regenerator, cooler, bent axle etc.Key is internal-combustion engine and Stirling engine are combined into a body, the heater of the gas exhaust piping serial connection Stirling engine of internal-combustion engine, the exhaust of internal-combustion engine is as the high temperature heat source of Stirling engine, and promptly high-temperature exhaust air and heater carry out being re-used as the waste gas discharge after the heat exchange.Same bent axle of motivational drive (as Fig. 1) by internal-combustion engine and two systems' generations of Stirling engine.In using energy source, internal-combustion engine produces power by the burning of fuel and AIR MIXTURES, promotes self piston and externally does work; Utilize the cycle fluid that high-temperature exhaust air comes and Stirling engine is interior of internal-combustion engine to carry out heat exchange simultaneously, the piston that promotes Stirling-electric hybrid self behind the working medium expanded by heating externally does work.The working medium of Stirling engine is externally done work through two closed cycle loops, and two closed cycles alternately promote reciprocating motion of the pistons (as Fig. 2).Be that internal-combustion engine system passes through the working medium fuel combustion and promotes the piston acting, the used heat that the working medium in the Stirling engine system receives internal-combustion engine promotes the acting of Stirling-electric hybrid piston, and the same bent axle of piston actuated in two systems rotates.
Characteristics of the present invention and beneficial effect are, can realize that Stirling engine absorbs I. C. engine exhaust used heat to greatest extent, make Stirling engine send the power of maximum possible, compare with traditional combustion motor waste heat recycling device, hybrid engine can send bigger power under identical fuel consumption rate, significantly improve power character, and the reclaiming system volume is little, compact structure.
Description of drawings
Fig. 1 is a system architecture schematic representation of the present invention.
Fig. 2 is a Stirling engine structural principle schematic representation.
Fig. 3 is that the power of hybrid engine is with the change in rotational speed curve.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and by example.Structurally, internal-combustion engine 1 and Stirling engine 4 are combined into a body, the heater 3 of the gas exhaust piping 2 serial connection Stirling engines of internal-combustion engine 1, the exhaust of internal-combustion engine is as the high temperature heat source of Stirling engine 4, by same bent axle 5(of motivational drive such as Fig. 1 of internal-combustion engine 1 and 4 two systems' generations of Stirling engine).After the high-temp waste gas heater via was passed to the working medium of Stirling engine to heat, low temperature waste gas was arranged to atmosphere environment.Working medium in the Stirling engine is through two identical closed cycle loops (as Fig. 2), and cycle fluid can be a hydrogen, also can be helium.First circulation loop is made up of the first expansion chamber 6-1, first piston 7-1, the first compression chamber 8-1, the first regenerator 9-1, the first cooler 10-1 and first group of heating pipe 11-1 successively; Second circulation loop is made up of the second expansion chamber 6-2, the second piston 7-2, the second compression chamber 8-2, the second regenerator 9-2, the second cooler 10-2 and second group of heating pipe 11-2 successively.Be provided with first or second group of heating pipe 11-1,11-2 between the first and second expansion chamber 6-1,6-2 and the pairing first or second regenerator 9-1, the 9-2, form by parallel connection of many heating pipes for every group.Heater 3 is the tubular fin type heat exchanger, and the pipe side is first or second group of heating pipe 11-1,11-2, and shell fluid is the exhaust of internal-combustion engine 1.Heating pipe in first or second group is the metal tube that has fin.
In Stirling engine, no matter be first circulation loop or second circulation loop, its working medium acting working principle all is identical: Stirling engine working substance absorbs behind the I. C. engine exhaust heat expanded by heating in this loop expansion chamber, promote this loop piston and move downward, drive the bent axle acting.Detailed process is: when this loop piston moves downward, working medium in this loop compression chamber is cooled off through the cooler in this loop earlier, enter the heat absorption of the regenerator in this loop and heating pipe then, the expansion chamber that the working medium after the heat absorption enters this loop acting of expanding; In like manner, when the piston in this loop moved upward, the working medium in this loop expansion chamber will heat absorption entering the regenerator in this loop through the heating pipe in this loop earlier, returns compression chamber after the cooler cooling through this loop then, circulation and so forth.By selecting the circulation coupling of suitable work phase place and internal-combustion engine, make the running of hybrid engine steady, the output power maximum.
Regenerator is serially connected between heater and the cooler, and its effect is that working medium absorbs the part heat the working medium when temperature end flows to low-temperature end, and the working medium temperature is reduced; When working medium in the back half cycles when promptly flowing to temperature end by low-temperature end, regenerator is passed to working medium with heat, and the working medium temperature that flows out regenerator is raise.Regenerator is to be made of 200-250 purpose Stainless Steel Cloth, and the ratio of heat transfer sheet area and unit volume is up to 300cm
2/ cm
3Structure is to be that the screen cloth that the Stainless Steel Wire of 35-50 μ m is woven into is processed into disk with diameter, staggers by several angle, stacks, in the thin walled cylinder of packing into blocks ofly.
The working medium of Stirling engine can be selected hydrogen or helium, and the present embodiment experiment is the diesel engine of 3.9 liters in one four cylinder and the Stirling engine of two cylinders, and total work volume of Stirling engine is 118cc.What cycle fluid was selected is hydrogen.When the average circulating pressure of working medium is 12MPa.Experiment showed, that the present invention can make the mean effective power of diesel engine increase by 10%.Fig. 3 is that the power of hybrid engine is with the change in rotational speed relation curve.Curve 1 among Fig. 3 is a Stirling engine power, and curve 2 is a diesel engine power, and curve 3 is a hybrid engine power.As can be seen from Figure 3, under the prerequisite that does not consume unnecessary fuel, the power of hybrid engine all increases to some extent than former internal-combustion engine under each rotating speed, and rotating speed high power more increases obvious more.In addition, this hybrid engine can also utilize advantages such as the Stirling engine torque characteristics is good, adaptive coefficient is high, and part throttle characteristics is good, remedies the deficiency of diesel engine.
Claims (5)
1. internal-combustion engine and Stirling hybrid engine, comprise internal-combustion engine and Stirling engine and heater, regenerator, cooler, bent axle, it is characterized in that internal-combustion engine (1) and Stirling engine (4) are combined into a body, the heater (3) of gas exhaust piping (2) the serial connection Stirling engine of internal-combustion engine (1), the exhaust of internal-combustion engine is as the high temperature heat source of Stirling engine (4), by the same bent axle of motivational drive (5) of internal-combustion engine (1) and (4) two systems' generations of Stirling engine.
2. according to described internal-combustion engine of claim 1 and Stirling hybrid engine, it is characterized in that working medium in the described Stirling engine (4) through two identical closed cycle loops, first circulation loop is made up of first expansion chamber (6-1), first piston (7-1), first compression chamber (8-1), first regenerator (9-1), first cooler (10-1) and first group of heating pipe (11-1) successively; Second circulation loop is made up of second expansion chamber (6-2), second piston (7-2), second compression chamber (8-2), second regenerator (9-2), second cooler (10-2) and second group of heating pipe (11-2) successively.
3. according to claim 1 or 2 described internal-combustion engines and Stirling hybrid engine, it is characterized in that described first or second group of heating pipe (11-1,11-2), form by parallel connection of many heating pipes for every group.
4. according to described internal-combustion engine of one of claim 1 ~ 3 and Stirling hybrid engine, it is characterized in that described heater (3) is the tubular fin type heat exchanger, the pipe side is described first or second group of heating pipe (11-1,11-2), shell fluid is the exhaust of described internal-combustion engine (1), and the heating pipe in described first or second group is the metal tube that has fin.
5. according to described internal-combustion engine of claim 2 and Stirling hybrid engine, it is characterized in that the working medium in the described Stirling engine (4) is hydrogen, or helium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102497311A CN101915147A (en) | 2010-08-10 | 2010-08-10 | Combustion motor and stirling compound engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102497311A CN101915147A (en) | 2010-08-10 | 2010-08-10 | Combustion motor and stirling compound engine |
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| CN101915147A true CN101915147A (en) | 2010-12-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536367A (en) * | 2010-12-29 | 2012-07-04 | 中国科学院工程热物理研究所 | Waste heat power generation method of Stirling engine |
| CN103470397A (en) * | 2012-08-14 | 2013-12-25 | 摩尔动力(北京)技术股份有限公司 | Cold pressing unit engine |
| CN103925078A (en) * | 2014-04-30 | 2014-07-16 | 郭远军 | Combined type power equipment |
| CN104653331A (en) * | 2015-01-29 | 2015-05-27 | 中国科学院理化技术研究所 | Free-piston Stirling heat engine |
| CN104847426A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Combination cycle pressurization direct injection engine |
| WO2015161726A1 (en) * | 2014-04-23 | 2015-10-29 | 镇江市博林光电科技有限公司 | Engine with closed cold and heat cycle |
| WO2016000400A1 (en) * | 2014-07-04 | 2016-01-07 | 郭远军 | Efficient thermal energy power device and work-doing method therefor |
| CN108167086A (en) * | 2017-11-21 | 2018-06-15 | 上海齐耀动力技术有限公司 | A kind of high-pressure oxygen-enriched combustion Stirling electricity generation system and its control method |
| CN108979771A (en) * | 2017-06-02 | 2018-12-11 | 北京理工大学 | Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device |
| CN111237037A (en) * | 2020-01-14 | 2020-06-05 | 高长生 | High-efficient recycle engine block of heat energy |
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| CN2466567Y (en) * | 2001-01-19 | 2001-12-19 | 羊冀贤 | Warmer |
| CN1388342A (en) * | 2002-07-06 | 2003-01-01 | 胡初民 | Electric finned-pipe heater |
| CN1485593A (en) * | 2002-09-29 | 2004-03-31 | 王智慧 | Incorporated high density phase transformation energy accumulation power consumption heat supply process and apparatus |
| CN1788151A (en) * | 2003-05-13 | 2006-06-14 | 本田技研工业株式会社 | Multi-stage stirling engine |
| CN101379285A (en) * | 2006-02-02 | 2009-03-04 | 丰田自动车株式会社 | Exhaust heat recovery apparatus |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536367A (en) * | 2010-12-29 | 2012-07-04 | 中国科学院工程热物理研究所 | Waste heat power generation method of Stirling engine |
| CN103470397A (en) * | 2012-08-14 | 2013-12-25 | 摩尔动力(北京)技术股份有限公司 | Cold pressing unit engine |
| WO2015161726A1 (en) * | 2014-04-23 | 2015-10-29 | 镇江市博林光电科技有限公司 | Engine with closed cold and heat cycle |
| CN103925078A (en) * | 2014-04-30 | 2014-07-16 | 郭远军 | Combined type power equipment |
| US10208707B2 (en) | 2014-07-04 | 2019-02-19 | Yuanjun GUO | Efficient thermal energy power device and work-doing method therefor |
| WO2016000400A1 (en) * | 2014-07-04 | 2016-01-07 | 郭远军 | Efficient thermal energy power device and work-doing method therefor |
| CN104847426A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Combination cycle pressurization direct injection engine |
| CN104847426B (en) * | 2014-12-19 | 2017-09-29 | 北汽福田汽车股份有限公司 | A kind of mixing circulation supercharged direct-injection engine |
| CN104653331A (en) * | 2015-01-29 | 2015-05-27 | 中国科学院理化技术研究所 | Free-piston Stirling heat engine |
| CN108979771A (en) * | 2017-06-02 | 2018-12-11 | 北京理工大学 | Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device |
| CN108167086A (en) * | 2017-11-21 | 2018-06-15 | 上海齐耀动力技术有限公司 | A kind of high-pressure oxygen-enriched combustion Stirling electricity generation system and its control method |
| CN108167086B (en) * | 2017-11-21 | 2022-06-07 | 上海齐耀动力技术有限公司 | High-pressure oxygen-enriched combustion Stirling power generation system and control method thereof |
| CN111237037A (en) * | 2020-01-14 | 2020-06-05 | 高长生 | High-efficient recycle engine block of heat energy |
| CN111237037B (en) * | 2020-01-14 | 2021-06-29 | 高长生 | High-efficient recycle engine block of heat energy |
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Application publication date: 20101215 |