JP5701611B2 - 小型熱音響アレイエネルギー変換器 - Google Patents
小型熱音響アレイエネルギー変換器 Download PDFInfo
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- JP5701611B2 JP5701611B2 JP2010544333A JP2010544333A JP5701611B2 JP 5701611 B2 JP5701611 B2 JP 5701611B2 JP 2010544333 A JP2010544333 A JP 2010544333A JP 2010544333 A JP2010544333 A JP 2010544333A JP 5701611 B2 JP5701611 B2 JP 5701611B2
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
- F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
- F02G2243/50—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes
- F02G2243/54—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes thermo-acoustic
Description
λバー=音のラジアン波長
x=共振器内のもっとも近い音圧波腹に対するスタック位置
である。
Claims (20)
- 熱エネルギーを電気に変換するための熱音響エネルギー変換器であって、
複数の共振器を有し、前記共振器の各々は、共振器チャンバを画定する第1端部および第2開放端部、および前記共振器チャンバ内に配置されるスタックを有し、
前記熱音響エネルギー変換器はさらに、前記複数の共振器の各第2開放端部に連結し且つ流体連通する音響チャンバと、
前記共振器チャンバの内側チャンバ内に配置される作動流体と、
前記音響チャンバに連結され且つ前記作動流体と相互作用する電子−機械トランスデューサと、を有し、前記作動流体から前記電子−機械トランスデューサへの振動は、前記電子−機械トランスデューサを発電するように駆動し、
前記音響チャンバは、前記複数の共振器から生成された音波の少なくとも一部を、前記複数の共振器の第1端部に向けて反射して増幅し、
前記複数の共振器は、フェーズロックされる、熱音響エネルギー変換器。 - 請求項1に記載の熱音響エネルギー変換器であって、前記スタックは、前記スタックの第1側部に隣接して配置され且つ前記共振器の熱い側部に熱的に連結される第1熱交換器と、前記スタックの第2側部に隣接して配置され且つ前記共振器の冷たい側部に熱的に連結される第2熱交換器と、を有し、前記共振器の冷たい側部は、前記音響チャンバに熱的に連結される、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、さらに各共振器に連結される熱連結機構を有し、前記熱連結機構は、熱エネルギーを前記熱連結機構から前記複数の熱交換器へ伝達して、各共振器内に少なくとも1つの定在波を形成する、熱音響エネルギー変換器。
- 請求項3に記載の熱音響エネルギー変換器であって、前記電子−機械トランスデューサの面は、前記複数の共振器の前記スタックに概ね平行に配置され、且つ、前記複数の共振器の前記スタックに概ね同軸となるように整合される、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、前記電子−機械トランスデューサは、前記音響チャンバの端部に配置され、且つ、前記音響チャンバ内に配置される作動流体により流体連通する、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、各共振器は、概ね円筒形の共振器チャンバ、テーパーの付いた円筒形の共振器チャンバ、またはヘルムホルツ状共振器チャンバを備える、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、前記スタックは、コットンウールおよびガラスウールからなる材料の群から選択されるランダムファイバースタック材料を有する、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、前記作動流体は、空気、不活性ガス、および不活性ガスの混合ガスからなる群から選択される、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、前記電子−機械トランスデューサは、2000Hzより大きな周波数の音により駆動し、その音から発電することができる、ピエゾ電気素子を有する、熱音響エネルギー変換器。
- 請求項9に記載の熱音響エネルギー変換器であって、前記ピエゾ電気素子は、超音波周波数の音により駆動でき、その音から発電できる、熱音響エネルギー変換器。
- 請求項1に記載の熱音響エネルギー変換器であって、前記熱交換器は、熱伝導性金属メッシュを有する、熱音響エネルギー変換器。
- 熱音響エネルギー発生器であって、
熱連結素子と、
前記熱連結素子に連結される複数の熱音響共振器と、を備え前記共振器の各々は、前記熱連結素子からの熱エネルギーにさらされたときに前記共振器内に定在波を発生させることができ、前記共振器は閉じた第1端部と第2開放端部とを有し、
前記熱音響エネルギー発生器はさらに、前記複数の共振器の第2開放端部の各々に連結され且つ流体連通する第1端部を備える音響チャンバを有し、前記音響チャンバは、前記複数の共振器の1つの共振器チャンバよりも大きな容積を備え、
前記熱音響エネルギー発生器はさらに、前記共振器チャンバおよび前記音響チャンバ内に配置される作動流体と、
前記音響チャンバの第2端部に連結され且つ前記作動流体と相互作用するピエゾ電気トランスデューサと、を有し、前記作動流体から前記ピエゾ電気トランスデューサへの振動が、前記ピエゾ電気トランスデューサを駆動して電気を発生させ、
前記複数の共振器はフェーズロックされる、熱音響エネルギー発生器。 - 請求項12に記載の熱音響エネルギー発生器であって、前記複数の熱音響共振器の各々は、スタックの第1側部に隣接して配置され且つ前記共振器の熱い側部に熱的に連結される第1熱交換器、および、前記スタックの第2側部に隣接して配置され且つ前記共振器の冷たい側部に熱的に連結される第2熱交換器を有し、前記共振器の冷たい側部は、前記音響チャンバに熱的に連結される、熱音響エネルギー発生器。
- 請求項12に記載の熱音響エネルギー発生器であって、前記ピエゾ電気トランスデューサの面は、前記複数の共振器の前記スタックに概ね平行であり且つ前記スタックと同軸に整合される、熱音響エネルギー発生器。
- 請求項12に記載の熱音響エネルギー発生器であって、前記ピエゾ電気トランスデューサは、前記音響チャンバの端部に配置され、前記音響チャンバ内に配置される前記作動流体と流体連通する、熱音響エネルギー発生器。
- 請求項12に記載の熱音響エネルギー発生器であって、前記共振器の各々は、概ね円筒形の共振器チャンバ、テーパーの付いた円筒形共振器チャンバ、または、ヘルムホルツ状共振器チャンバを備える、熱音響エネルギー発生器。
- 請求項13に記載の熱音響エネルギー発生器であって、前記スタックは、コットンウールおよびガラスウールからなる材料の群から選択されるランダムファイバースタック材料である、熱音響エネルギー発生器。
- 請求項12に記載の熱音響エネルギー発生器であって、前記作動流体は、空気、不活性ガス、不活性ガスの混合ガスからなるガスの群から選択される、熱音響エネルギー発生器。
- 請求項12に記載の熱音響エネルギー発生器であって、前記ピエゾ電気トランスデューサは、2000Hzより大きい周波数の音により駆動され、その音から電気を発生させることができる、熱音響エネルギー発生器。
- 請求項19に記載の熱音響エネルギー発生器であって、前記ピエゾ電気トランスデューサは、超音波周波数の音により駆動され、その音から電気を発生させることができる、熱音響エネルギー発生器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US12/018,762 | 2008-01-23 | ||
US12/018,762 US8004156B2 (en) | 2008-01-23 | 2008-01-23 | Compact thermoacoustic array energy converter |
PCT/US2009/000427 WO2009094175A1 (en) | 2008-01-23 | 2009-01-23 | Compact thermoacoustic array energy converter |
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JP2011510610A JP2011510610A (ja) | 2011-03-31 |
JP5701611B2 true JP5701611B2 (ja) | 2015-04-15 |
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US (2) | US8004156B2 (ja) |
EP (1) | EP2255435A4 (ja) |
JP (1) | JP5701611B2 (ja) |
CN (1) | CN102057564B (ja) |
CA (1) | CA2712730C (ja) |
WO (1) | WO2009094175A1 (ja) |
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-
2008
- 2008-01-23 US US12/018,762 patent/US8004156B2/en not_active Expired - Fee Related
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2009
- 2009-01-23 WO PCT/US2009/000427 patent/WO2009094175A1/en active Application Filing
- 2009-01-23 EP EP09703954.9A patent/EP2255435A4/en not_active Withdrawn
- 2009-01-23 CA CA2712730A patent/CA2712730C/en not_active Expired - Fee Related
- 2009-01-23 CN CN200980110134.6A patent/CN102057564B/zh not_active Expired - Fee Related
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EP2255435A1 (en) | 2010-12-01 |
CN102057564A (zh) | 2011-05-11 |
WO2009094175A1 (en) | 2009-07-30 |
CA2712730C (en) | 2016-10-04 |
CA2712730A1 (en) | 2009-07-30 |
JP2011510610A (ja) | 2011-03-31 |
US20120007369A1 (en) | 2012-01-12 |
US8004156B2 (en) | 2011-08-23 |
US8143767B2 (en) | 2012-03-27 |
CN102057564B (zh) | 2015-01-14 |
US20090184604A1 (en) | 2009-07-23 |
EP2255435A4 (en) | 2016-07-13 |
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