CN203056815U - Vortex street-based generator for automobile - Google Patents
Vortex street-based generator for automobile Download PDFInfo
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- CN203056815U CN203056815U CN 201220703245 CN201220703245U CN203056815U CN 203056815 U CN203056815 U CN 203056815U CN 201220703245 CN201220703245 CN 201220703245 CN 201220703245 U CN201220703245 U CN 201220703245U CN 203056815 U CN203056815 U CN 203056815U
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- vortex
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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
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model relates to a vortex street-based generator for automobile. The generator comprises a housing (4), two permanent magnets (7 and 8), a vortex generator (2), and a metal coil (9); and one end of the housing is an inlet end provided with a connecting flange and the other end thereof is an outlet end (6) provided with a connecting flange. When in use, the generator is installed between an air filter (10) and an engine inlet air pipe (11) of an automobile. According to the utility model, the vortex street-based generator structure used on the idling working condition of the automobile is designed. In other words, the provided vortex street-based generator for automobile is designed as a device that is capable of converting the kinetic energy generated by fluid flowing into the electric energy; and the generator can be used on the various automotive working conditions including the idling condition.
Description
Technical field
The present invention relates to a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT), specifically is a kind of device that utilizes Karman vortex street to produce alternating current, and this device changes into electric energy with the kinetic energy that produces in the process fluid flow, is fit to automobile and uses under various operating modes.
Background technology
Reynolds number (Reynolds number) is a dimensionless number describing the motion of fluid (as air, water etc.), and it has described the inertia force of fluid and the ratio of viscous force.The reynolds number Re of compressible fluid can represent with following formula,
Wherein, ρ, V
∞, μ represents the density of fluid respectively, speed and dynamic viscosity coefficient; L represents the characteristic length scales of object.When fluid was walked around the non-streamline object, owing to have adverse pressure gradient among the viscous boundary layer of body surface, surface boundary layer began to separate, and the development through certain hour in the tail at object rear, according to different Reynolds numbers, forms different flow patterns.A large amount of theory and experiment showed, in Reynolds number from 50 to 500 scopes can form stablely, paired, alternately arrangement, that direction of rotation is opposite, constant spacing, is the vortex of core with the laminar flow in tail the zone in.Such flow pattern is called as Karman vortex street.Because the fluid force scholar Feng Kamen (Von Karman) of Germany takes the lead in this phenomenon has been carried out studying and gaining the name.Fig. 1 is that Karman vortex street is at ducted formation schematic diagram.The primary condition that Karman vortex street forms is understood in the figure acceptance of the bid.Incoming flow (1) at first must be arranged, and namely fluid flows; Secondly, fluid must pass through non-streamline object (bluff body), or claims vortex generation body (2), represents with the two-dimensional circle cylindricality among the figure.If the fluid Reynolds number in above-mentioned scope, at vortex generation body (2) rear, forms Karman vortex street (3).
In the Karman vortex street (3) at vortex generation body (2) rear, vortex can be along coming flow path direction to move backward.Simultaneously because the existence of the circular rector of single vortex, this whirlpool can be subjected to one with the incoming flow vertical direction on active force, i.e. lift.Thereby in Karman vortex street (3), fluid can be subjected to the periodically alternately active force of variation in the direction vertical with coming flow path direction.According to active force and reaction force principle, fluid can produce also that the one-period sexual intercourse becomes, the active force vertical with coming flow path direction to this vortex generation body (2), thereby vortex generation body (2) can vibrate coming the vertical direction of flow path direction to produce.How utilizing the energy of this vibration of Karman vortex street generation to change into available energy, as electric energy, is the technical problem that the present invention solves.
Designed a device among the present invention for this reason.It is placed in the automobile, because the relative motion of air and vehicle just has the generation of incoming flow.Simultaneously, the present invention has designed the vortex street electric generator structure that uses especially when the idling operation of automobile, is automobile vortex street generator.
Summary of the invention
The objective of the invention is to utilize the above-mentioned background technology, the kinetic energy that has produced when having designed a kind of fluid can being flowed changes into the device of electric energy, can use under various operating modes (the comprising idling) working condition of automobile.
The present invention is a kind of automobile vortex street generator.As shown in Figures 2 and 3, Fig. 2 provided automobile of the present invention with the vortex street generator along air current flow direction cross-sectional schematic (being that the B-B of Fig. 3 is to cutaway view), Fig. 3 be the A-A of Fig. 2 to cutaway view, indicate among the figure that this device comprises:
Housing (4), the thin-walled cylinder that the two ends of described housing connect, wherein an end is the arrival end (5) that has adpting flange, the port of export (6) that an end has adpting flange;
Two block permanent magnets (7,8) be arranged on its corresponding surface along housing (4) bottom or top, and a permanent magnet N utmost point are extremely corresponding with another side permanent magnet S;
Vortex generation body (2) is positioned at housing (4);
Wire coil (9) is wrapped on the outer surface of vortex generation body (2) or is embedded on the inwall of described vortex generation body (2).
Described housing (4) is the passage of the inner chamber formation fluid of cylinder.The cross section of cylinder is preferably circle, rectangle or other polygons.
The height h of described two block permanent magnets (7,8) equals 1/2nd of housing (4) inner chamber height H, namely satisfies formula:
Wherein H is the height of housing (4) inner chamber, and L is the characteristic length of vortex generation body (2).Form magnetic field in the middle of two block permanent magnets (7,8), the magnetic line of force points to the S utmost point by the N utmost point.
The profile of described vortex generation body (2) is columned, thin-walled hollow, open at both ends, and its characteristic length L is cylindrical diameter.Two ends are fixedly installed on respectively on the two corresponding surface inwalls of permanent magnet (7,8) or housing (4).Be co-located on the upper end in magnetic field with the wire coil (9) on it.Vortex generation body (2) adopts the elasticity macromolecular material to make.The axis normal of its axis and housing (4) is located having the arrival end of adpting flange (5) in the position.
When fluid enters housing (4), behind vortex generation body (2), it produces Karman vortex street in the tail zone, because vortex generation body (2) has elasticity, can produce vibration in the direction vertical with fluid flow direction, cyclic deformation up and down takes place in magnetic field, drive wire coil (9) on it at permanent magnet (7,8) regular cutting magnetic line in the middle magnetic field, and the magnetic flux that passes described wire coil (9) is changed, so produce induced current.
Fig. 4 is the schematic diagram that this device is used for automobile.Show among the figure, during use, this device is placed between the air filter (10) and engine air inlet tube (11) of automobile.The port of export (6) that has adpting flange links to each other with air inlet pipe (11), and the arrival end (5) that has adpting flange links to each other with air filter (10).Just this Blast Furnace Top Gas Recovery Turbine Unit (TRT) is installed between the original air filter of automobile (10) and the engine air inlet tube (11).No matter be running car or and static in, as long as automobile engine (12) operation, air will be arranged from entering housing (4) through air filter (10), just can produce electric current according to above-mentioned principle, so the present invention can use under the various operating modes of automobile.
This apparatus structure is simple, and it is little to take up room, in light weight, need not automobile is done too much change, and low cost of manufacture does not have specific (special) requirements to using environment.
Description of drawings
Fig. 1 is the schematic diagram that Karman vortex street forms.Among the figure, 1 fluid incoming flow, 2 vortex sounding bodies, 3 Karman vortex streets.
Fig. 2 is that automobile uses the vortex street generator along air current flow direction cross-sectional schematic.Among the figure, the port of export, the 7 permanent magnet N utmost points, the 8 permanent magnet S utmost points, 9 wire coils of 2 vortex generation bodies, 4 housings, 5 band adpting flange arrival ends, 6 band adpting flanges.
Fig. 3 is that the A-A of Fig. 2 is to cross-sectional schematic.Among the figure, 2 vortex generation bodies, 4 housings, the 7 permanent magnet N utmost points, 9 wire coils.
Fig. 4 is the schematic diagram that the present invention uses in automobile.Among the figure, the port of export, 10 air filters, 11 engine air inlet tubes, 12 automobile engines of 4 housings, 5 band adpting flange arrival ends, 6 band adpting flanges.
Fig. 5 is the partial perspective view of Fig. 2, Fig. 3; Among the figure, 2 vortex generation bodies, 4 housings, the 7 permanent magnet N utmost points, 9 wire coils.
Embodiment
Further specify theory structure of the present invention with specific embodiment below.What the present invention proposed is a kind of automobile vortex street generator, should be applicable to the various operating modes of automobile, comprises travelling and the static state of idling of automobile.In the vehicle that travels, the relative motion meeting of air produces air and flows in device of the present invention.Under the idling operation of vehicle, be static during vehicle, but the running of engine is appointed so can make and is produced flowing of air in the engine air inlet tube.So, according to shown in Figure 4, one to use the approach of vortex street Blast Furnace Top Gas Recovery Turbine Unit (TRT) under the various operating modes of vehicle be that the vortex street Blast Furnace Top Gas Recovery Turbine Unit (TRT) is placed in automobile engine intake tube () before.Like this, so long as engine running just has air to enter the housing (4) of generator, generator just can be worked.Connected mode original in the vehicle is: air inlet pipe (11) front connects air filter (10).So automobile need be placed in the vortex street generator between air inlet pipe (11) and the air filter (10) with the vortex street Blast Furnace Top Gas Recovery Turbine Unit (TRT).
The prerequisite of utilizing this device to produce alternating current is that the Reynolds number of fluid must be in the Karman vortex street formation range.Air in the general air inlet pipe flows and satisfies this condition.For example, speed air flow 2 meter per seconds in the air inlet pipe, the density of air and dynamic viscosity are respectively 1.2 kilograms per cubic meter and 1.8x10
-5Handkerchief second; 0.001 meter of the characteristic length scales of vortex generation body, then the Reynolds number that calculates according to formula (1) is 133, satisfies the generation condition of Karman vortex street.After Karman vortex street produced, vortex generation body was subjected to lift F
L, its size is directly proportional with the length dimension of speed of incoming flow and object.According to static analytical methods and ignore the gravity of the object that vibrates, can obtain lift that object is subjected at any time and the restoring force F of elasticity vortex generation body
SEquate,
F
L=F
s （3）
According to Hooke's law, the stressed and distortion of elasticity vortex generation body can be expressed as linear dependence,
F
s=k·dY （4）
Wherein, k is the linear deformation coefficient of elasticity vortex generation body, dY be object with the flow direction vertical direction on amount of movement.Can obtain from formula (3) and (4), this amount of movement is
DY also is the maximum amount of movement when considering the gravity of vibration object.Thereby this device be can be by selecting suitable elasticity vortex generation body parameter such as shape, deformation coefficient realize.Further dynamic analysis, the displacement y (t) that the t in time that the object transverse vibration can be produced changes is with following function representation,
y(t)=A
0sin(2πf
et), (6)
Wherein, A
0It is amplitude; f
eBe the frequency of oscillation of object, it can equate with the shedding frequence of vortex or approach according to the concrete condition in incoming flow flow field.
According to above-mentioned mentality of designing, the present invention has given the embodiment of a kind of automobile with the vortex street generator.Required parts and annexation and Fig. 2, shown in Figure 3 identical wherein.Here no longer narration.
In technique scheme, housing (4) duroplasts material is made, and the cross section is the thin-walled rectangle.
Vortex generation body (2) is to be made by elasticity macromolecular material rubber, thin-walled hollow, open at both ends cylindrical; Vortex generation body (2) is positioned at apart from the distance of the arrival end that has adpting flange (5) of housing (4) and is not less than 2 times of round diameter positions, thereby guarantee to play to the passage the vortex generation body (2) from the arrival end (5) that has adpting flange the effect of water conservancy diversion, incoming flow is kept evenly, steadily, behind vortex generation body, produce Karman vortex street.
Wire coil (9) evenly is embedded on vortex generation body (2) surface.
The height h of permanent magnet (7,8) satisfies formula (2), forms magnetic field in housing (4).Fig. 5 has represented the stereogram that specific embodiment middle part sub-unit is installed.Show among the figure that on two corresponding surface housings (4) and the permanent magnet, the position was in permanent magnet (7,8) upper end about the two ends, the left and right sides of cylindrical vortex generation body (2) were stuck in.In the sealing area that is surrounded by wire coil (9), about two/part has magnetic flux to pass.And it is under the Karman vortex street effect, when vortex generation body (2) takes place to vibrate deformation up and down, to cause that wire coil (9) the partial periodicity ground that is wrapped in vortex generation body (2) departs from magnetic field, enter magnetic field then, thereby when making closed wire coil (9) in magnetic field, the motion of cutting magnetic line take place, by the magnetic flux generating period variation thereupon of closed wire coil (9), thereby constantly in wire coil (9), produce induced current.
This Unit Installation is same as shown in Figure 4 in automobile.During installation, can install in any angle along the axis direction (air-flow direction in the housing just) that housing (4) connects, only need guarantee that air enters housing () and gets final product.In addition, also can be that axle rotates 0 °～90 ° angles and uses with this Blast Furnace Top Gas Recovery Turbine Unit (TRT) with the air-flow direction, as when rotating 90 °, the vortex generation body (2) among the present invention and the vibration of wire coil (9) be subjected to the influence of its gravity.
Reference numerals list
1 fluid incoming flow;
2 vortex sounding bodies;
3 Karman vortex streets;
4 housings;
5 band adpting flange arrival ends;
The port of export of 6 band adpting flanges;
The 7 permanent magnet N utmost points;
The 8 permanent magnet S utmost points;
9 wire coils;
10 air filters;
11 engine air inlet tubes;
12 automobile engines.
Claims (7)
1. an automobile vortex street generator is characterized in that, comprise,
Housing (4), the thin-walled cylinder that the two ends of described housing connect, wherein an end is the arrival end (5) that has adpting flange, the port of export (6) that an end has adpting flange;
Two block permanent magnets (7,8) be arranged on its corresponding surface along housing (4) bottom or top, and a permanent magnet N utmost point are extremely corresponding with another side permanent magnet S;
Vortex generation body (2) is positioned at housing (4);
Wire coil (9) is wrapped on the outer surface of vortex generation body (2) or is embedded on the inwall of described vortex generation body (2).
2. automobile according to claim 1 vortex street generator is characterized in that, the described arrival end (5) that has adpting flange is connected with the air filter (10) of automobile.
3. automobile according to claim 1 vortex street generator is characterized in that, the described port of export (6) that has adpting flange is connected with the engine air inlet tube (10) of automobile.
4. automobile according to claim 1 vortex street generator is characterized in that, described permanent magnet (7,8) is arranged on the left and right sides corresponding surface of housing along housing (4) bottom or top, and the height h of described permanent magnet satisfies formula:
Wherein H is the height of housing (4) inner chamber, and L is the characteristic length of vortex generation body (2).
5. automobile according to claim 1 vortex street generator is characterized in that, the cylinder longitudinal section of described housing (4) is rectangle or polygon.
6. automobile according to claim 1 vortex street generator is characterized in that, described vortex generation body (2) is for to be made by the elasticity macromolecular material.
7. automobile according to claim 1 vortex street generator is characterized in that, described vortex generation body (2) is elastomeric objects column, thin-walled hollow, open at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703245 CN203056815U (en) | 2012-12-18 | 2012-12-18 | Vortex street-based generator for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703245 CN203056815U (en) | 2012-12-18 | 2012-12-18 | Vortex street-based generator for automobile |
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| Publication Number | Publication Date |
|---|---|
| CN203056815U true CN203056815U (en) | 2013-07-10 |
Family
ID=48739733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703245 Expired - Fee Related CN203056815U (en) | 2012-12-18 | 2012-12-18 | Vortex street-based generator for automobile |
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| Country | Link |
|---|---|
| CN (1) | CN203056815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016055370A3 (en) * | 2014-10-06 | 2016-06-16 | Vortex Bladeless, S.L. | An electrical power generator and an electrical power generation method |
| CN110360000A (en) * | 2018-04-09 | 2019-10-22 | 上海汽车集团股份有限公司 | Direct-injection petrol engine air intake control method and control device |
-
2012
- 2012-12-18 CN CN 201220703245 patent/CN203056815U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016055370A3 (en) * | 2014-10-06 | 2016-06-16 | Vortex Bladeless, S.L. | An electrical power generator and an electrical power generation method |
| US10641243B2 (en) | 2014-10-06 | 2020-05-05 | Vortex Bladeless, S.L. | Electrical power generator harnessing a swaying movement of a pole and including a system for generating a magnetic repulsion force |
| CN110360000A (en) * | 2018-04-09 | 2019-10-22 | 上海汽车集团股份有限公司 | Direct-injection petrol engine air intake control method and control device |
| CN110360000B (en) * | 2018-04-09 | 2021-08-17 | 上海汽车集团股份有限公司 | Air intake control method for direct injection gasoline engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131218 |