WO2014167429A1 - Rotational thermal generator - Google Patents
Rotational thermal generator Download PDFInfo
- Publication number
- WO2014167429A1 WO2014167429A1 PCT/IB2014/059493 IB2014059493W WO2014167429A1 WO 2014167429 A1 WO2014167429 A1 WO 2014167429A1 IB 2014059493 W IB2014059493 W IB 2014059493W WO 2014167429 A1 WO2014167429 A1 WO 2014167429A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- heat
- currents
- magnetic field
- induced
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/109—Induction heating apparatus, other than furnaces, for specific applications using a susceptor using magnets rotating with respect to a susceptor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
Definitions
- the invention is related to electrical machinery and generators.
- Rotational thermal generator of the proposed design converts mechanical rotational motion into thermal energy.
- the installation operates on the basis of induced currents generated by changing magnetic field. Electric currents induced by changing magnetic field are also referred to as 'Foucault currents'.
- Magnets are fixed to a moving unit - a rotor that rotates by virtue of an axis with bearings. Magnetic field generated by permanent magnets is closed by a ferromagnetic stator. The motion induces currents in the ferromagnetic stator. The induced currents heat the stator. Thus, the energy of mechanical rotation motion is converted into thermal energy.
- Stator can be homogeneous or constructed using several metals, such as copper and steel, aluminium and steel, or other structural compound of low resistance metals with ferromagnetic materials. As the stator is heated, it transfers the heat to a heat exchanger made of fins and attached to the stator. Heated stator and heat exchanger emit heat into the surrounding medium, thus transferring it into air or other gas.
- FIG. 4 The version of rotational thermal generator for heating fluids is depicted in Fig. 5 and Fig. 6.
- FIG. 1 Axial section of the rotor is depicted in Fig. 1.
- FIG. 2 Cross-section of the installation is depicted in Fig. 2.
- FIG. 3 Cross-section of the installation, where the stator is constructed of several metals, is depicted in Fig. 3.
- FIG. 4 Cross-section of the installation for heating air or other gas is depicted in Fig. 4.
- FIG. 1 Cross-section of the installation for heating fluids is depicted in Fig 5.
- FIG. 6 Axial section of complete installation is depicted in Fig. 6.
- Thermal generator comprises the following: axis 1, rotor 2, magnets 3 fixed to the rotor, steel stator 4, non-ferrous metal bushings 5, fins 6, fluid filled cavities 7, casing 8, bearings 9 and vents 10 to support circulation.
- the advantage of the proposed design is simple production not requiring any special materials or special manufacturing equipment.
- Thickness of the outer steel element of the rotor shall ensure that magnetic field is closed by magnets without forming additional magnetic resistance.
- the rotor can rotate.
- stator As the rotor rotates during operation, currents are induced in the stator. Given that each material has its specific electrical resistance, the material becomes heated by the running current. The running induced currents heat the stator. The stator transfers the heat to the surrounding medium.
- Operating conditions of the generator are determined by efficiency of the coolant and circulation.
- Output of the generator is determined by permissible operating temperature of the magnets, strength of the magnets, number of the magnets, rotational speed of the rotor, and coercive magnetic field formed by the running induced currents.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Rotational thermal generator of the proposed design converts mechanical rotational motion into thermal energy. The installation operates on the basis of induced currents generated by changing magnetic field. Electric currents induced by changing magnetic field are also referred to as 'Foucault currents'. Magnets are fixed to a moving unit - a rotor that rotates by virtue of an axis with bearings. Magnetic field generated by permanent magnets is closed by a ferromagnetic stator. The motion induces currents in the ferromagnetic stator. The induced currents heat the stator. Thus, the energy of mechanical rotation motion is converted into thermal energy. Stator can be homogeneous or constructed using several metals, such as copper and steel, aluminium and steel, or other structural compound of low resistance metals with ferromagnetic materials. As the stator is heated, it transfers the heat to a heat exchanger made of fins and attached to the stator. Heated stator and heat exchanger emit heat into the surrounding medium, thus transferring it into air or other gas.
Description
The invention is related to electrical machinery and
generators.
The closest analogue to the invention is technical
solution described in
WO2011140320 (A2) ― 10.11.2011
Similarity has been found in the description and in
Figure 3. The proposed design offers heat generation method using permanents
magnets that create rotating magnetic field that, in turn, produces induced
currents in the used metal or a structural metal compound that heat the
mentioned metal or structural metal compound. The description lacks any design
solutions of transfer of the generated heat to air or fluids. The only found
statement is that the generated heat can heat air, fluids, sodium… Hence, there
is reference to the possibility of heating, but no design solutions of transfer
of the generated heat to heat transfer media, such as air, fluids, gas, have
been proposed.
Rotational thermal generator of the proposed
design converts mechanical rotational motion into thermal energy. The
installation operates on the basis of induced currents generated by changing
magnetic field. Electric currents induced by changing magnetic field are also
referred to as 'Foucault currents'.
Magnets are fixed to a moving unit - a rotor that
rotates by virtue of an axis with bearings. Magnetic field generated by
permanent magnets is closed by a ferromagnetic stator. The motion induces
currents in the ferromagnetic stator. The induced currents heat the stator.
Thus, the energy of mechanical rotation motion is converted into thermal
energy.
Stator can be homogeneous or constructed using
several metals, such as copper and steel, aluminium and steel, or other
structural compound of low resistance metals with ferromagnetic materials. As
the stator is heated, it transfers the heat to a heat exchanger made of fins
and attached to the stator. Heated stator and heat exchanger emit heat into the
surrounding medium, thus transferring it into air or other gas.
This is shown in Fig. 4. The version of rotational
thermal generator for heating fluids is depicted in Fig. 5 and Fig. 6.
Axial section of the rotor is depicted in Fig.
1.
Cross-section of the installation is depicted in
Fig. 2.
Cross-section of the installation, where the stator
is constructed of several metals, is depicted in Fig. 3.
Cross-section of the installation for heating air
or other gas is depicted in Fig. 4.
Cross-section of the installation for heating
fluids is depicted in Fig 5.
Axial section of complete installation is depicted
in Fig. 6.
Thermal generator comprises the following: axis 1,
rotor 2, magnets 3 fixed to the rotor, steel stator 4, non-ferrous metal
bushings 5, fins 6, fluid filled cavities 7, casing 8, bearings 9 and vents 10
to support circulation.
The advantage of the proposed design is simple
production not requiring any special materials or special manufacturing
equipment.
Thickness of the outer steel element of the rotor
shall ensure that magnetic field is closed by magnets without forming
additional magnetic resistance. The rotor can rotate.
As the rotor rotates during operation, currents are
induced in the stator. Given that each material has its specific electrical
resistance, the material becomes heated by the running current. The running
induced currents heat the stator. The stator transfers the heat to the
surrounding medium.
Operating conditions of the generator are
determined by efficiency of the coolant and circulation. Output of the
generator is determined by permissible operating temperature of the magnets,
strength of the magnets, number of the magnets, rotational speed of the rotor,
and coercive magnetic field formed by the running induced currents.
Claims (4)
1. Rotary thermal generator with a stator and rotor that can
move in relation to each other and permanent magnets that produces heat by
virtue of induced currents,
c h a r a c t e r i z e d in that the magnets are located on
the middle moving part of cylindrical shape.
2. Rotary thermal generator according to the above mentioned
claim 1, c h a r a c t e r i z e d in that it contains a heat exchanger
constructed of fins.
3. Rotary thermal generator according to the above mentioned
claim 1, c h a r a c t e r i z e d in that it contains fluid filled
cavity.
4. Rotary thermal generator according to the above mentioned
claim 1, c h a r a c t e r i z e d in that it allows the possibility for
circulation of the coolant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT2013030 | 2013-04-08 | ||
| LT2013030A LT6124B (en) | 2013-04-08 | 2013-04-08 | Rotational thermal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014167429A1 true WO2014167429A1 (en) | 2014-10-16 |
Family
ID=50473712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2014/059493 WO2014167429A1 (en) | 2013-04-08 | 2014-03-06 | Rotational thermal generator |
Country Status (2)
| Country | Link |
|---|---|
| LT (1) | LT6124B (en) |
| WO (1) | WO2014167429A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017137776A1 (en) * | 2016-02-10 | 2017-08-17 | Rotaheat Limited | Heat generator |
| EP3217762A4 (en) * | 2014-11-06 | 2018-07-04 | Nippon Steel & Sumitomo Metal Corporation | Eddy-current heating device |
| DE102017006316A1 (en) | 2017-07-05 | 2019-01-10 | Daimler Ag | Thermal generator, method for its operation and heating arrangement |
| US10425998B2 (en) | 2013-08-22 | 2019-09-24 | Rotaheat Limited | Heat generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2328931A1 (en) * | 1975-10-23 | 1977-05-20 | Inco Europ Ltd | Water heater using wind power directly - has wind driven shaft with permanent magnets inducing heating current in conductor in contact with water |
| EP0077702A2 (en) * | 1981-10-16 | 1983-04-27 | Le Materiel Magnetique | Converter of rotary kinetic energy into heat by generation of eddy currents |
| US4511777A (en) * | 1984-07-19 | 1985-04-16 | Frank Gerard | Permanent magnet thermal energy system |
| JP2005174801A (en) * | 2003-12-12 | 2005-06-30 | Tok Engineering Kk | Permanent magnet type eddy current heating device |
| WO2011140320A2 (en) | 2010-05-07 | 2011-11-10 | E Berdut-Teruel | Permanent magnet induction heating system |
-
2013
- 2013-04-08 LT LT2013030A patent/LT6124B/en not_active IP Right Cessation
-
2014
- 2014-03-06 WO PCT/IB2014/059493 patent/WO2014167429A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2328931A1 (en) * | 1975-10-23 | 1977-05-20 | Inco Europ Ltd | Water heater using wind power directly - has wind driven shaft with permanent magnets inducing heating current in conductor in contact with water |
| EP0077702A2 (en) * | 1981-10-16 | 1983-04-27 | Le Materiel Magnetique | Converter of rotary kinetic energy into heat by generation of eddy currents |
| US4511777A (en) * | 1984-07-19 | 1985-04-16 | Frank Gerard | Permanent magnet thermal energy system |
| JP2005174801A (en) * | 2003-12-12 | 2005-06-30 | Tok Engineering Kk | Permanent magnet type eddy current heating device |
| WO2011140320A2 (en) | 2010-05-07 | 2011-11-10 | E Berdut-Teruel | Permanent magnet induction heating system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10425998B2 (en) | 2013-08-22 | 2019-09-24 | Rotaheat Limited | Heat generator |
| EP3217762A4 (en) * | 2014-11-06 | 2018-07-04 | Nippon Steel & Sumitomo Metal Corporation | Eddy-current heating device |
| US10701768B2 (en) | 2014-11-06 | 2020-06-30 | Nippon Steel Corporation | Eddy current heat generating apparatus |
| WO2017137776A1 (en) * | 2016-02-10 | 2017-08-17 | Rotaheat Limited | Heat generator |
| CN108702815A (en) * | 2016-02-10 | 2018-10-23 | 罗塔希特公司 | Heat generator |
| CN108702815B (en) * | 2016-02-10 | 2020-12-18 | 罗塔希特公司 | Heat generator |
| US10912157B2 (en) | 2016-02-10 | 2021-02-02 | Rotaheat Limited | Heat generator |
| DE102017006316A1 (en) | 2017-07-05 | 2019-01-10 | Daimler Ag | Thermal generator, method for its operation and heating arrangement |
| DE102017006316B4 (en) | 2017-07-05 | 2019-04-18 | Daimler Ag | Thermal generator with bypass control device, method for its operation and heating arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| LT6124B (en) | 2015-03-25 |
| LT2013030A (en) | 2014-10-27 |
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