CN102072043A - Zero-leakage type Stirling engine - Google Patents
Zero-leakage type Stirling engine Download PDFInfo
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- CN102072043A CN102072043A CN2011100290621A CN201110029062A CN102072043A CN 102072043 A CN102072043 A CN 102072043A CN 2011100290621 A CN2011100290621 A CN 2011100290621A CN 201110029062 A CN201110029062 A CN 201110029062A CN 102072043 A CN102072043 A CN 102072043A
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Abstract
A zero-leakage type Stirling engine relates to the technical field of conversion of thermal energy and aims to solve the problems that in the existing combustion motor, the thermal conversion efficiency is low, the combustion is incomplete so as to cause a large number of pollutive gas to be discharged into the air; and in the existing Stirling engine, power/weight ratio is small, sealing is difficult and zero leakage can not be realized. A sealed cavity of the Stirling engine is connected with an external air vent valve, a conduction initial point of the air vent valve is at a part with internal system pressure of the sealed cavity of the Stirling engine is just between a value being equal to an ambient pressure value and a value being rotated for 20 degrees, the conduction angle of the air vent valve is ranged from 5 degrees to 25 degrees, the movable sealing positions of all parts of the Stirling engine and the external air vent port of the air vent valve are all sealed in a closed shell, and the pressure of gas working fluid in the closed shell is 1-300 atmospheric pressure or higher. By the zero-leakage type Stirling engine provided by the invention, combustion thermal energy of fuel can be directly and effectively converted into mechanical energy, zero leakage and huge power/weight ratio can be realized, and the conversion efficiency is ranged from 20 percent to 80 percent.
Description
Technical field
What the present invention relates to is the technical field that thermal power transfer becomes mechanical energy.
Background technique
Existing internal-combustion engine is applied in the every field widely, wherein the quantity of automobile application is maximum, bring many facilities to the human lives, but its heat/machine conversion efficiency generally is between 20%～40%, all the other heat energy of 60%～80% can't utilize and need outwards discharging, simultaneously can not perfect combustions because of fuel, and its tail gas will discharge a large amount of dusty gass in air, make air be subjected to serious pollution, it is the one of the main reasons that cause earth environment to warm that tool is added up these.Brought loss and the destruction that to retrieve for human living environment in the future.
Stirling engine is that Stirling was in invention in 1816.Stirling engine is unique hot machine, because their theoretic efficient intrinsic peak efficiency no better than is called Carnot's cycle efficiency.Stirling engine produces power by when gases are heated, they expand, meet cold contraction.This is a kind of external-burning engine, and fuel is burnt continuously, and the expansion hydrogen (or helium) of evaporation makes piston motion as power gas, and expanding gas cools off at cold air chamber, carries out such cyclic process repeatedly.Because external-combustion engine has been avoided the quick-fried acting problem of shake of traditional combustion engine, thereby high efficiency, low noise, the low pollution and low operating cost have been realized.
But Stirling engine also has many problems to solve, and for example power/weight ratio is little, and sealing difficulty and can't realize the problem etc. of zero leakage.So, can't become the motor of use in enormous quantities.
Summary of the invention
The present invention is in order to overcome existing internal-combustion engine thermal conversion efficiency low (between 20%～40%), incomplete combustion and in air the problem of a large amount of dusty gas of discharging, and existing Stirling engine also exists power/weight ratio little, and sealing difficulty and can't realize the problem etc. of zero leakage.And then a kind of zero leakage formula Stirling-electric hybrid proposed.
It comprises Stirling-electric hybrid, gas valve, gas working medium, closed shell;
The enclosed cavity of Stirling-electric hybrid is connected with an external gas valve, the conducting starting point of gas valve be the enclosed cavity built-in system pressure of Stirling-electric hybrid just in time be in equal the ambient pressure value to rotate again 20 the degree between, the angle of flow of gas valve is that 5 degree are to 25 degree, the movable sealing place of above-mentioned all parts of Stirling-electric hybrid and the external breather port of gas valve all are enclosed in the closed shell, and the pressure of the gas working medium in the closed shell is 1～300 barometric pressure (pressurizeing under the situation that mechanical strength allows) or higher.
The present invention can directly convert the combustion heat energy of fuel to mechanical energy efficiently, because of the outside all is a static seal, and can realize zero leakage, its inner dynamic seal technology adopts prior art just can satisfy its job requirement, thereby the pressure of its gas working medium can be very high (a hundreds of barometric pressure, as long as mechanical strength enough just can), and then can realize the power/weight ratio of super large, further the volume of reduction means and reduce weight is realized energy-efficient.
The conversion efficiency of its heat energy/mechanical energy is 20%～80%, and heating-up temperature is high more, and its thermal conversion efficiency is high more.Its total part number is existing below 30% of the total part number of internal-combustion engine.
The material in its hot junction and the material of firing chamber are used current material and promptly may be realized, for example available existing high-temperature resistant pottery, and its heatproof is 1300 ℃～1700 ℃, or material such as stainless steel, and is promptly cheap for manufacturing cost, and can realize the purpose of production in enormous quantities sale.
Because fuel is to burn continuously, this just might be reduced to inferior limit to the pollutant of not wishing to produce outside, and then has reduced environmental pollution, promptly realizes perfect combustion.
Concrete technique effect: but plus-pressure decide according to its mechanical strength, do not have other restriction; 1, its output power becomes greater than proportional relation with pressure, (example: when being 1 barometric pressure as inside, when being output as 100W; When internal pressure being increased to 2 barometric pressure, its output power＞200W; When inside was 3 barometric pressure, output＞300W--also increased because of revolution; Used heat energy also increases in proportion simultaneously).2, its internal pressure value all can be at any time when when running work or off working state be regulated by calm the anger device supercharging or venting decompression of outside, can realize that (thermal energy that thermal source sends is also wanted corresponding adjustment for the quick adjustment at any time of output power; When the thermal source thermal energy was regulated separately, output power can not change fast).
It has also kept the performance (its theoretic efficient is intrinsic peak efficiency-Carnot's cycle efficiency no better than) of original high-conversion rate simultaneously.It also have running steadily, noise is minimum, simple in structure, to material requirements is low, easy to use, maintenance cost is low, long service life, advantage that power/weight ratio is big.Promote the use of and be fit to large batch of production and sales.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of Stirling-electric hybrid 1, gas valve 2, gas working medium 3, closed shell 4;
The enclosed cavity 1-1 of Stirling-electric hybrid 1 is connected with an external gas valve 2, the conducting starting point of gas valve 2 be the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time be in equal the ambient pressure value to rotate again 20 the degree between, the angle of flow of gas valve 2 is that 5 degree are to 25 degree, the movable sealing place of above-mentioned Stirling-electric hybrid 1 all parts and the external breather port 2-1 of gas valve 2 all are enclosed in the closed shell 4, and the pressure of the gas working medium 3 in the closed shell 4 is 1～300 barometric pressure (pressurizeing under the situation that mechanical strength allows) or higher.
The rotating shaft 1-2 of described Stirling-electric hybrid 1 can with generator 5 interlocks that are provided with in the closed shell 4 or the outside that mechanical energy is delivered to closed shell 4 by magnetic coupling.
The action of described gas valve 2 can be by the automatically controlled realization of cam mechanism, crank mechanism or sensor.
The thermal source of the work of Stirling-electric hybrid is from various fuel, solar energy, other heating thermal source etc., the concrete optional gasoline of fuel, diesel oil, alcohol, methyl alcohol, liquefaction vapour, rock gas, coal gas or mixed type liquid fuel etc.
The high-temperature part of this device should be in the adiabatic housing of insulation, to prevent scattering and disappearing of heat.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the conducting starting point of described gas valve 2 is that the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in and equals ambient pressure value place.Other composition be connected identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the conducting starting point of described gas valve 2 is that the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in and equals the ambient pressure value and rotate 5 degree again.Other composition be connected identical with embodiment one.
Embodiment four: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the conducting starting point of described gas valve 2 is that the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in and equals the ambient pressure value and rotate 10 degree again.Other composition be connected identical with embodiment one.
Embodiment five: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the conducting starting point of described gas valve 2 is that the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in and equals the ambient pressure value and rotate 15 degree again.Other composition be connected identical with embodiment one.
Embodiment six: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the conducting starting point of described gas valve 2 is that the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in and equals the ambient pressure value and rotate 19 degree again.Other composition be connected identical with embodiment one.
Embodiment seven: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the angle of flow of described gas valve 2 is 6 degree.Other composition be connected identical with embodiment one.
Embodiment eight: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the angle of flow of described gas valve 2 is 10 degree.Other composition be connected identical with embodiment one.
Embodiment nine: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment one is that the angle of flow of described gas valve 2 is 15 degree.Other composition be connected identical with embodiment one.
Embodiment ten: in conjunction with Fig. 1 present embodiment is described, present embodiment increases on the basis of embodiment one buffering gas tank 6; Closed shell 4 is communicated with buffering gas tank 6.Other composition be connected identical with embodiment one.Prevent because of closed shell 4 inner permitted gas spaces too smallly, make the acting piston motion variation in pressure excessive problem of the internal pressure of closed shell 4 because of Stirling-electric hybrid 1.
Working principle: Stirling-electric hybrid 1, when being heated rotary work, the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 just in time is in when equaling the ambient pressure value, external and internal pressure meeting autobalance after gas valve 2 conductings, make the rotation in next week be in system balancing point optimum state, thereby can overcome the problem that influences system balancing point stability because of the small gas leakage of motive sealing, when closed shell 4 internal pressures change fast simultaneously, the enclosed cavity 1-1 built-in system pressure of Stirling-electric hybrid 1 also can be followed fast carries out autobalance, built-in system pressure because of Stirling-electric hybrid 1 is big more again, its output power is big more, and then can realize as long as the pressure in the energy quick control closed shell 4 just can be realized the adjusting of the output power size of Stirling-electric hybrid 1 fast.Make it have more practicability.Pressure difference when the sealing load that the movable sealing parts bore of Stirling-electric hybrid 1 inside only is acting, and reduced sealing difficulty, further reduce cost.
Claims (10)
1. zero leakage formula Stirling-electric hybrid, it comprises Stirling-electric hybrid (1), gas valve (2), gas working medium (3) closed shell (4);
The enclosed cavity (1-1) that it is characterized in that Stirling-electric hybrid (1) is connected with an external gas valve (2), the conducting starting point of gas valve (2) be enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time be in equal the ambient pressure value to rotate again 20 the degree between, the angle of flow of gas valve (2) is that 5 degree are to 25 degree, the movable sealing place of all parts of above-mentioned Stirling-electric hybrid (1) and the external breather port (2-1) of gas valve (2) all are enclosed in the closed shell (4), and the pressure of the gas working medium (3) in the closed shell (4) is 1～300 barometric pressure or higher.
2. zero leakage formula Stirling-electric hybrid according to claim 1, the conducting starting point that it is characterized in that described gas valve (2) are that enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time is in and equals ambient pressure value place.
3. zero leakage formula Stirling-electric hybrid according to claim 1, the conducting starting point that it is characterized in that described gas valve (2) be enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time be in equal the ambient pressure value rotate again 5 the degree.
4. zero leakage formula Stirling-electric hybrid according to claim 1, the conducting starting point that it is characterized in that described gas valve (2) be enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time be in equal the ambient pressure value rotate again 10 the degree.
5. zero leakage formula Stirling-electric hybrid according to claim 1, the conducting starting point that it is characterized in that described gas valve (2) be enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time be in equal the ambient pressure value rotate again 15 the degree.
6. zero leakage formula Stirling-electric hybrid according to claim 1, the conducting starting point that it is characterized in that described gas valve (2) be enclosed cavity (1-1) the built-in system pressure of Stirling-electric hybrid (1) just in time be in equal the ambient pressure value rotate again 19 the degree.
7. zero leakage formula Stirling-electric hybrid according to claim 1, the angle of flow that it is characterized in that described gas valve (2) are 6 degree.
8. zero leakage formula Stirling-electric hybrid according to claim 1, the angle of flow that it is characterized in that described gas valve (2) are 10 degree.
9. zero leakage formula Stirling-electric hybrid according to claim 1, the angle of flow that it is characterized in that described gas valve (2) are 15 degree.
10. zero leakage formula Stirling-electric hybrid according to claim 1 is characterized in that its increase has buffering gas tank (6); Closed shell (4) is communicated with buffering gas tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100290621A CN102072043A (en) | 2010-02-01 | 2011-01-21 | Zero-leakage type Stirling engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103323.5 | 2010-02-01 | ||
| CN201010103323A CN101769212A (en) | 2010-02-01 | 2010-02-01 | Zero-leakage stirling machine |
| CN2011100290621A CN102072043A (en) | 2010-02-01 | 2011-01-21 | Zero-leakage type Stirling engine |
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| CN102072043A true CN102072043A (en) | 2011-05-25 |
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| CN201010103323A Pending CN101769212A (en) | 2010-02-01 | 2010-02-01 | Zero-leakage stirling machine |
| CN2011100290621A Pending CN102072043A (en) | 2010-02-01 | 2011-01-21 | Zero-leakage type Stirling engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822454A (en) * | 2016-05-09 | 2016-08-03 | 胥凤山 | Power actuating mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564419B (en) * | 2015-01-29 | 2016-03-02 | 中国科学院理化技术研究所 | Portable mute electric energy generation system |
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2010
- 2010-02-01 CN CN201010103323A patent/CN101769212A/en active Pending
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2011
- 2011-01-21 CN CN2011100290621A patent/CN102072043A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822454A (en) * | 2016-05-09 | 2016-08-03 | 胥凤山 | Power actuating mechanism |
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| CN101769212A (en) | 2010-07-07 |
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Application publication date: 20110525 |