JP4512773B2 - Thermoacoustic device - Google Patents

Thermoacoustic device Download PDF

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JP4512773B2
JP4512773B2 JP2004183373A JP2004183373A JP4512773B2 JP 4512773 B2 JP4512773 B2 JP 4512773B2 JP 2004183373 A JP2004183373 A JP 2004183373A JP 2004183373 A JP2004183373 A JP 2004183373A JP 4512773 B2 JP4512773 B2 JP 4512773B2
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resonance
resonance tube
stack
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thermosonic
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JP2006009579A (en
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沢 政 保 畠
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Nihon University
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Description

本発明は自動車の動力源として用いられている内燃機関、例えばガソリン機関の廃熱を有効利用する技術に関する。より詳細には、本発明は、熱音響現象を利用して、自動車用の内燃機関等の排気ガスが保有する熱エネルギーの一部を運動エネルギー（例えば、音波、振動）として回収して利用する熱音響装置に関する。   The present invention relates to a technique for effectively using waste heat of an internal combustion engine, for example, a gasoline engine, used as a power source for automobiles. More specifically, the present invention uses a thermoacoustic phenomenon to recover and use a part of thermal energy held by exhaust gas of an automobile internal combustion engine or the like as kinetic energy (for example, sound wave, vibration). The present invention relates to a thermoacoustic apparatus.

近時、熱から仕事（音波）へ、あるいは仕事から熱へ直接エネルギー変換できる熱音響現象が注目され、種々の研究が行われている。   Recently, thermoacoustic phenomena that can directly convert energy from heat to work (sound waves) or from work to heat have attracted attention, and various studies have been conducted.

熱音響現象は、図８に示すように、一端１１ａを閉じ、そして他端１１ｂを開放した共鳴管１１内に、その管１１の長さ方向に延伸する複数の細管あるいは平板を平行に配設したスタック１４を挿入し、そのスタック１４の両端に高・低温熱交換器１２、１３を設け以ってスタック１４の両端で温度差を発生させる様にせしめ、そして、スタック１４の閉口端側を加熱（Ｑｈ）、開口端側を冷却（Ｑｃ）すると、共鳴管１１内の気体が自励振動を起こし音波Ｓが発生する現象である。   As shown in FIG. 8, in the thermoacoustic phenomenon, a plurality of thin tubes or flat plates extending in the length direction of the tube 11 are arranged in parallel in a resonance tube 11 having one end 11a closed and the other end 11b opened. The stack 14 is inserted, and high and low temperature heat exchangers 12 and 13 are provided at both ends of the stack 14 so that a temperature difference is generated at both ends of the stack 14, and the closed end side of the stack 14 is When heating (Qh) and the opening end side are cooled (Qc), the gas in the resonance tube 11 undergoes self-excited vibration and a sound wave S is generated.

係る熱音響現象は、熱（スタック１４の両端における温度差）を仕事（音波或いは振動）に変換する現象であり、稼動部分を必要とすること無く、熱から仕事へ変換することが出来る。そのため、廃熱等の各種熱エネルギーを有効に利用して、省エネルギーに役立てることが可能である。
しかし、熱音響現象については、未だに十分に解明されてはおらず、係る現象を実用化することは、現状では出来ていない。 Such a thermoacoustic phenomenon is a phenomenon in which heat (temperature difference between both ends of the stack 14) is converted into work (sound wave or vibration), and can be converted from heat to work without requiring an operating part. For this reason, it is possible to effectively use various heat energy such as waste heat to help save energy.
However, the thermoacoustic phenomenon has not yet been fully elucidated, and it is not possible to put this phenomenon into practical use at present.

熱音響現象を解明して、実用化に供することを可能とするべく、種々の研究が為されており、例えば、共鳴管をＵ字型に接合して閉空間を形成して、係る閉空間内にスタックを挿入してループ形熱音響音波発生器を構成した従来技術が存在する（非特許文献１）。
しかし、係る従来技術は、熱音響現象の学術的な解明を目的とするものであり、実用化に供するものではない。
畠沢政保他 日本機械学会論文集（別刷）６７巻６５５号（平成１３年３月） ３５〜４２頁 社団法人日本機械学会発行 Various studies have been made to elucidate the thermoacoustic phenomenon and make it available for practical use. For example, a closed space is formed by joining a resonance tube in a U-shape, and the closed space There is a conventional technique in which a stack is inserted into a loop type thermoacoustic sound wave generator (Non-Patent Document 1).
However, the related art is intended for academic elucidation of the thermoacoustic phenomenon and is not intended for practical use.
Masabo Serizawa et al. Transactions of the Japan Society of Mechanical Engineers (Reprint) Vol. 67, No. 655 (March 2001) 35-42 Published by The Japan Society of Mechanical Engineers

本発明は、上述した従来技術の問題点に鑑みて提案されたものであり、熱音響現象を用いて、熱を音波或いは振動（仕事の一形態）に変換するのに好適で、且つ、実用化が可能な構造を提供することを目的としている。   The present invention has been proposed in view of the above-described problems of the prior art, and is suitable for converting heat into sound waves or vibrations (one form of work) using a thermoacoustic phenomenon, and is practical. The purpose is to provide a structure that can be integrated.

発明者は、かかる熱音響現象を利用した熱音響音波発生器（以下、熱音波発生器と記す）について、複数機の熱音波発生器の結合による性能の向上、あるいは共鳴管内のスタックの最適位置等について種々の研究を行い、その結果、自動車用内燃機関（例えばガソリンエンジン）に適用した実験において、当該内燃機関の排気熱で安定した熱音響現象について安定した挙動が得られることを見出した。   The inventor has improved the performance of a thermoacoustic sound generator (hereinafter referred to as a thermosonic generator) utilizing such a thermoacoustic phenomenon by combining a plurality of thermosonic generators, or the optimum position of the stack in the resonance tube. As a result, in an experiment applied to an internal combustion engine for automobiles (for example, a gasoline engine), it has been found that a stable behavior can be obtained with respect to a thermoacoustic phenomenon stabilized by exhaust heat of the internal combustion engine.

本発明の熱音響装置は、内燃機関（１）の排気管（２）の一部に拡幅部（２ａ）を設け、その拡幅部（２ａ）を貫通して熱音波発生器（１０）が設けられ、その熱音波発生器（１０）の一端は閉じて他端が開口された共鳴管（１１）と、その共鳴管（１１）内に挿入されたスタック（１４）とそのスタック（１４）の共鳴管閉口（１１ａ）側端部に設けられた高温熱交換器（１２）とを有している熱音響装置において、前記共鳴管（１１）の開口（１１ｂ）側には発生音波と共振する共振手段（２１）が設けられ、燃料供給源（２７）から燃料が導かれる霧化機構（２６）が設けられ、該霧化機構（２６）に前記共振手段（２１）で発生した振動が伝達されて霧化された燃料が内燃機関（１）へ供給される（請求項１）。   The thermoacoustic device of the present invention is provided with a widened portion (2a) in a part of an exhaust pipe (2) of an internal combustion engine (1), and a thermosonic generator (10) is provided through the widened portion (2a). A resonance tube (11) having one end of the thermosonic generator (10) closed and the other end opened, a stack (14) inserted into the resonance tube (11), and the stack (14). In a thermoacoustic apparatus having a high-temperature heat exchanger (12) provided at the end of the resonance tube closing (11a) side, the resonance tube (11) resonates with the generated sound wave on the opening (11b) side. A resonance means (21) is provided, and an atomization mechanism (26) for introducing fuel from a fuel supply source (27) is provided, and vibration generated by the resonance means (21) is transmitted to the atomization mechanism (26). The atomized fuel is supplied to the internal combustion engine (1).

本発明の熱音響装置は、内燃機関（１Ａ）の排気管（２）の一部に拡幅部（２ａ）を設け、その拡幅部（２ａ）を貫通して熱音波発生器（１０）が設けられ、その熱音波発生器（１０）の一端は閉じて他端が開口された共鳴管（１１）と、その共鳴管（１１）内に挿入されたスタック（１４）とそのスタック（１４）の共鳴管閉口（１１ａ）側端部に設けられた高温熱交換器（１２）とを有している熱音響装置において、前記共鳴管（１１）の開口（１１ｂ）側には発生音波と共振する共振手段（２１）が設けられ、その共振手段（２１）からの振動が伝達される混合手段（３１）を有し、その混合手段（３１）には第１の液体（３２Ａ）と第２の液体（３２Ｂ）とが供給されており、その混合手段（３１）で混合された第１および第２の液体（３２Ａ、３２Ｂ）が内燃機関（１Ａ）の燃料供給手段（１ｆ）に送られる（請求項２）。   In the thermoacoustic device of the present invention, a widened portion (2a) is provided in a part of the exhaust pipe (2) of the internal combustion engine (1A), and a thermosonic generator (10) is provided through the widened portion (2a). A resonance tube (11) having one end of the thermosonic generator (10) closed and the other end opened, a stack (14) inserted into the resonance tube (11), and the stack (14). In a thermoacoustic apparatus having a high-temperature heat exchanger (12) provided at the end of the resonance tube closing (11a) side, the resonance tube (11) resonates with the generated sound wave on the opening (11b) side. The resonance means (21) is provided, and has a mixing means (31) to which vibration from the resonance means (21) is transmitted. The mixing means (31) includes the first liquid (32A) and the second liquid. The liquid (32B) is supplied, and the first and second liquids mixed by the mixing means (31) (32A, 32B) is sent to the fuel supply means of an internal combustion engine (1A) (1f) (claim 2).

本発明の熱音響装置は、内燃機関（１）の排気管（２）の一部に拡幅部（２ａ）を設け、その拡幅部（２ａ）を貫通して熱音波発生器（１０）が設けられ、その熱音波発生器（１０）の一端は閉じて他端が開口された共鳴管（１１）と、その共鳴管（１１）内に挿入されたスタック（１４）とそのスタック（１４）の共鳴管閉口（１１ａ）側端部に設けられた高温熱交換器（１２）とを有している熱音響装置において、前記共鳴管（１１）の開口（１１ｂ）側には発生音波と共振する共振手段（２１）が設けられ、その共振手段（２１）からの振動が伝達される混合手段（３１）を有し、その混合手段（３１）には第１の液体（３２Ａ）と第２の液体（３２Ｂ）とが供給されており、その混合手段（３１）で混合された第１および第２の液体（３２Ａ、３２Ｂ）を圧送するポンプ（３３）を有する（請求項３）。   The thermoacoustic device of the present invention is provided with a widened portion (2a) in a part of an exhaust pipe (2) of an internal combustion engine (1), and a thermosonic generator (10) is provided through the widened portion (2a). A resonance tube (11) having one end of the thermosonic generator (10) closed and the other end opened, a stack (14) inserted into the resonance tube (11), and the stack (14). In a thermoacoustic apparatus having a high-temperature heat exchanger (12) provided at the end of the resonance tube closing (11a) side, the resonance tube (11) resonates with the generated sound wave on the opening (11b) side. The resonance means (21) is provided, and has a mixing means (31) to which vibration from the resonance means (21) is transmitted. The mixing means (31) includes the first liquid (32A) and the second liquid. The liquid (32B) is supplied, and the first and second liquids mixed by the mixing means (31) 32A, 32B) having a pump (33) for pumping (claim 3).

上述した構成を具備する本発明によれば、自動車用内燃機関の廃熱を利用して熱音波発生器を駆動し、自動車あるいはその駆動用内燃機関の補機等の諸機器に対し発生エネルギーを供給し利用することが出来る。
すなわち、本発明によれば、ガソリン機関その他の自動車用内燃機関の排気ガスを、共鳴管閉口側の熱交換器（高温熱交換器）に導入することで、熱音響現象を発生させるのに適した高温度が容易に得られる。そして、従来、内燃機関から排気損失として捨てられていたエネルギーの一部を仕事（音響或いは振動）として回収し、自動車用の諸機器に有効に利用することができる。 According to the present invention having the above-described configuration, a heat acoustic wave generator is driven using waste heat of an automobile internal combustion engine, and generated energy is supplied to various devices such as an automobile or an auxiliary machine of the drive internal combustion engine. Can be supplied and used.
That is, according to the present invention, it is suitable for generating a thermoacoustic phenomenon by introducing exhaust gas of a gasoline engine or other automotive internal combustion engine into a heat exchanger (high temperature heat exchanger) on the resonance tube closing side. High temperature can be easily obtained. A part of energy conventionally discarded as exhaust loss from the internal combustion engine can be recovered as work (sound or vibration) and can be effectively used for various devices for automobiles.

また、可動部分がない熱音波発生器を利用しているので、故障の発生が抑制され、保守・点検が容易であり、いわゆるメンテナンスフリーを達成することができる。   In addition, since a thermosonic generator having no moving parts is used, the occurrence of failure is suppressed, maintenance and inspection are easy, and so-called maintenance-free operation can be achieved.

ここで、熱音響現象は、温度差から音響（或いは振動）を発生するのとは逆のサイクル、すなわち、音響（或いは振動）から温度差を生じるサイクル、も可能である。従って、本発明によれば、音波或いは振動を用いて、温度差（温熱或いは冷熱）を得る事が出来る。   Here, the thermoacoustic phenomenon may be a cycle opposite to the generation of sound (or vibration) from a temperature difference, that is, a cycle that generates a temperature difference from sound (or vibration). Therefore, according to the present invention, a temperature difference (hot or cold) can be obtained using sound waves or vibration.

以下、本発明の実施形態について説明する。なお、前記図８で説明した熱音波発生器１０と同一構成の部品には同じ符号を付し、重複説明は省略する。
図１において、ガソリン機関１の排気管２の一部が拡幅され、その拡幅部２ａを貫通して熱音波発生器１０が設けられている。図２で示す様に、音波発生器１０は、排気管拡幅部２ａを貫通して一端は閉じ、他端が開口された共鳴管１１と、その共鳴管１１内に挿入されたスタック１４と、該スタック１４の共鳴管閉口１１ａ側端部に設けられた高温熱交換器１２を有している。 Hereinafter, embodiments of the present invention will be described. In addition, the same code | symbol is attached | subjected to the component of the same structure as the thermosonic wave generator 10 demonstrated in the said FIG. 8, and duplication description is abbreviate | omitted.
In FIG. 1, a part of the exhaust pipe 2 of the gasoline engine 1 is widened, and a thermosonic generator 10 is provided through the widened portion 2a. As shown in FIG. 2, the sound wave generator 10 includes a resonance tube 11 penetrating the exhaust pipe widening portion 2a and having one end closed and the other end opened, and a stack 14 inserted into the resonance tube 11; A high-temperature heat exchanger 12 is provided at the end of the stack 14 on the resonance tube closing 11a side.

図２において、共鳴管１１の排気管貫通部には高温熱交換器１２が設けられてその外周には排気ガスＥが導入され、排気熱が高温熱交換器１２を介してスタック１４の一端（スタック１４の共鳴管閉口１１ａ側端部）を加熱するように構成されている。
スタック１４において、高温熱交換器１２が設けられた共鳴管閉口１１ａ側端部よりも開口１１ｂ側は、複数の平行な細管で構成されている。 In FIG. 2, a high-temperature heat exchanger 12 is provided in the exhaust pipe penetrating portion of the resonance pipe 11, exhaust gas E is introduced to the outer periphery thereof, and the exhaust heat passes through one end of the stack 14 via the high-temperature heat exchanger 12 ( The resonance tube closing 11a side end of the stack 14 is configured to be heated.
In the stack 14, the opening 11 b side than the end portion on the resonance tube closing 11 a side where the high temperature heat exchanger 12 is provided is configured by a plurality of parallel thin tubes.

図２では図示されていないが、図７で示す様に、スタック１４の共鳴管開口１１ｂ側端部に、低温熱交換器１３を設けることが出来る。この低温熱交換器１３は、水冷式に構成することが可能である。例えば、内燃機関１の図示しない冷却系統に低温熱交換器１３を連通し、低温熱交換器１３がスタック１４の開口１１ｂ側端部近傍から奪った熱量を、図示しないラジエータから放熱する様に構成しても良い。
或いは、低温熱交換器１３を設けずに、スタック１４の開口１１ｂ側端部を周辺の雰囲気温度とせしめ、以って、スタック１４の閉口１１ａ側端部と、開口１１ｂ側端部との間に温度差を生じさせることも可能である。 Although not shown in FIG. 2, as shown in FIG. 7, a low temperature heat exchanger 13 can be provided at the end of the stack 14 on the resonance tube opening 11 b side. The low-temperature heat exchanger 13 can be configured as a water-cooled type. For example, the low-temperature heat exchanger 13 is communicated with a cooling system (not shown) of the internal combustion engine 1 so that the amount of heat taken by the low-temperature heat exchanger 13 from the vicinity of the opening 11b side end portion of the stack 14 is radiated from a radiator (not shown). You may do it.
Alternatively, without providing the low-temperature heat exchanger 13, the end portion on the opening 11 b side of the stack 14 is set to the ambient ambient temperature, and therefore, the end portion on the side of the opening 11 b and the end portion on the opening 11 b side of the stack 14. It is also possible to cause a temperature difference in

なお、図１〜図６では低温熱交換器１３は表示せず、図７で低温熱交換器１３は表示しているのは、上述した様に、低温熱交換器１３を具備する構造と、具備しない構造とが存在する旨を示すためである。   1 to 6, the low-temperature heat exchanger 13 is not displayed, and the low-temperature heat exchanger 13 is displayed in FIG. 7 because, as described above, the structure including the low-temperature heat exchanger 13, This is to show that there is a structure not provided.

図１、図２において、自動車用ガソリン機関１を駆動して、排気管２に高温の排気ガスを流過せしめれば、当該排気ガスが保有する熱量が上記熱音波発生器１０の熱交換器（高温熱交換器）１２を介して、スタック１４の共鳴管閉口１１ａ側端部を加熱する。その結果、スタック１４の両端部、すなわち共鳴管閉口１１ａ側端部と開口１１ｂ側端部、の間に温度差が生じ、熱音響現象により共鳴管１１に音波（振動波）が発生する。   In FIG. 1 and FIG. 2, when the automobile gasoline engine 1 is driven and high-temperature exhaust gas is allowed to flow through the exhaust pipe 2, the amount of heat held by the exhaust gas is converted into the heat exchanger of the thermosonic generator 10. The end of the stack 14 on the side of the resonance tube closure 11 a is heated via the (high temperature heat exchanger) 12. As a result, a temperature difference is generated between both ends of the stack 14, that is, the end on the resonance tube closing 11a side and the end on the opening 11b side, and a sound wave (vibration wave) is generated in the resonance tube 11 due to a thermoacoustic phenomenon.

図１、図２では図示されていないが、共鳴管１１の開口１１ｂを自動車用の音響機器に接続して、自動車用音響機器の音源として利用することが可能である。或いは、共鳴管１１を自動車の運転席における警報装置の警報音発生手段に接続して、熱音響現象により生じた音波を各種警報音として適用することも出来る。   Although not shown in FIGS. 1 and 2, it is possible to connect the opening 11 b of the resonance tube 11 to an automobile acoustic device and use it as a sound source for the automobile acoustic device. Alternatively, the resonance tube 11 can be connected to alarm sound generating means of an alarm device in a driver's seat of an automobile, and sound waves generated by a thermoacoustic phenomenon can be applied as various alarm sounds.

図３〜図６は、自動車用ガソリン機関１の排気管部に設けられた上記熱音波発生器１０を用いて、熱音響現象により音波を発生させ、発生した音波のエネルギー（音響エネルギー）を回収して、内燃機関あるいは車両の補機などの諸機器に利用する実施形態を、各々説明している。   FIGS. 3 to 6 show that a sound wave is generated by a thermoacoustic phenomenon using the thermosonic generator 10 provided in the exhaust pipe portion of the gasoline engine 1 for an automobile, and the generated sound wave energy (acoustic energy) is recovered. Embodiments used for various devices such as an internal combustion engine or a vehicle auxiliary machine are respectively described.

図３は、前記熱音波発生器１０によって発生させた音波を入力し、電圧を発生させてそれを利用する熱音響音波を利用した発電装置とせしめる実施形態を示す。
熱音波発生器１０の共鳴管１１の開口側には発生音波と共振しそのエネルギーを振動として次の電圧発生手段２２へ伝達する共振手段２１が設けられ、回収手段および変換手段が構成されている。そして、その電圧発生手段（例えば、圧電素子）２２で発生した電圧は整流手段２３を経て電力保存手段（電池あるいは蓄電器）２４を充電している。なお、この図ではスタック（１４）、低温熱交換器（１３）の図示は省略されている。 FIG. 3 shows an embodiment in which a sound wave generated by the thermosonic wave generator 10 is input, a voltage is generated, and a power generation apparatus using thermoacoustic sound waves using the voltage is used.
On the opening side of the resonance tube 11 of the thermosonic generator 10, there is provided a resonance means 21 that resonates with the generated sound wave and transmits the energy as vibration to the next voltage generation means 22, and constitutes a recovery means and a conversion means. . The voltage generated by the voltage generating means (for example, piezoelectric element) 22 charges the power storage means (battery or battery) 24 via the rectifying means 23. In this figure, the stack (14) and the low-temperature heat exchanger (13) are not shown.

図４は、前記熱音波発生器１０によって発生させた音波を振動に変換し、燃料霧化の向上に利用する実施形態を示している。
燃料供給源２７から機関１へ供給される燃料は霧化機構２６に導かれ、その霧化機構２６には共振手段２１から振動が伝達されており、霧化を助勢して微細な噴霧の混合気を生成する。 FIG. 4 shows an embodiment in which sound waves generated by the thermosonic generator 10 are converted into vibrations and used for improving fuel atomization.
The fuel supplied from the fuel supply source 27 to the engine 1 is guided to the atomization mechanism 26, and vibration is transmitted to the atomization mechanism 26 from the resonance means 21, which assists atomization and mixes fine spray. Generate qi.

図４の実施形態は、霧化すなわち気体・液体の混合を意図したのに対し、図５は、複数の液体を混合する実施形態を示している。
図５の実施形態は、例えば液体燃料に水を混入して乳化燃料とし、ディーゼル機関に適用する、あるいは燃料に添加剤を混合するといった場合に適用される。 While the embodiment of FIG. 4 is intended for atomization or gas / liquid mixing, FIG. 5 shows an embodiment of mixing multiple liquids.
The embodiment of FIG. 5 is applied to a case where water is mixed into liquid fuel to form an emulsified fuel, which is applied to a diesel engine, or an additive is mixed with the fuel.

図５において、共鳴管１１の開口側に共振手段２１が設けられており、その共振手段２１は、熱音波発生器１０によって発生した音波エネルギーを回収し、その入力された振動が混合手段３１に伝達されている。混合手段３１には、第１の液体３２Ａと第２の液体３２Ｂとが供給されており、混合手段３１からは、燃料供給手段（燃料噴射弁）１ｆに送られ、機関１Ａ内に噴射されている。
図５の実施形態は、機関に供給する燃料について示したが、これに限らず自動車に搭載された自走式の混合装置であってもよく、混合液の散布などに適用してもよい。 In FIG. 5, the resonance means 21 is provided on the opening side of the resonance tube 11, and the resonance means 21 collects the sound wave energy generated by the thermosonic generator 10, and the input vibration is applied to the mixing means 31. Has been communicated. The mixing means 31 is supplied with the first liquid 32A and the second liquid 32B, and is sent from the mixing means 31 to the fuel supply means (fuel injection valve) 1f and injected into the engine 1A. Yes.
Although the embodiment shown in FIG. 5 shows the fuel supplied to the engine, it is not limited to this and may be a self-propelled mixing device mounted on an automobile, or may be applied to spraying of a mixed liquid.

図６に示す実施形態では、第１の液体３２Ａと第２の液体３２Ｂとが混合手段３１に供給され、共振手段２１から伝えられた振動によって両液は混合され、その混合液はポンプ３３によって圧送されている。   In the embodiment shown in FIG. 6, the first liquid 32 </ b> A and the second liquid 32 </ b> B are supplied to the mixing unit 31, and both liquids are mixed by the vibration transmitted from the resonance unit 21. It is being pumped.

次に、図７は、上述した温度差を音波（音響）に変換する熱音響現象とは、逆のサイクルの現象、すなわち、音波或いは音響から温度差を作り出す現象を利用した実施形態を示す。具体的には、その様な逆サイクルの現象で得られた冷熱（低温源）を空調に利用した実施形態を示す。   Next, FIG. 7 shows an embodiment using a phenomenon of a cycle opposite to the thermoacoustic phenomenon in which the above-described temperature difference is converted into a sound wave (sound), that is, a phenomenon of creating a temperature difference from the sound wave or sound. Specifically, an embodiment in which cold (low temperature source) obtained by such a reverse cycle phenomenon is used for air conditioning will be described.

図７において、共鳴管１１の開口側には、熱音響現象が発生する周波数に相当する音波を発生する音波発生手段４１が設けられている。そして、上述した逆サイクルに係る熱音響現象により発生した温度差は、低温熱交換器１３で抽出され、当該熱交換器１３で熱交換されて冷熱が投入された冷却媒体（矢印Ａ）は、図示しない空調装置へ供給されて、空調に利用される。   In FIG. 7, on the opening side of the resonance tube 11, a sound wave generating means 41 for generating a sound wave corresponding to a frequency at which a thermoacoustic phenomenon occurs is provided. And the temperature difference which generate | occur | produced by the thermoacoustic phenomenon which concerns on the reverse cycle mentioned above is extracted by the low-temperature heat exchanger 13, and the cooling medium (arrow A) by which the heat exchanger 13 was heat-exchanged and the cold heat | fever was thrown in is the following. It is supplied to an air conditioner (not shown) and used for air conditioning.

具体的には、図７において、機関１で発生した機械的な動力が、駆動手段４２を介して音波発生器４１を駆動する。ここで、音波発生器４１は、熱音波発生器１０の発生周波数に相当する周波数の音波を発生し、且つ、音波発生器４１で発生した音波が共鳴管１１の開口端１１ｂからスタック１４へ印加される様に構成されている。
当該音波が作用する共鳴管１１内では、熱音響現象（仕事から熱を生じるサイクル：逆サイクル）により、スタック１４の共鳴管１１の長手方向両端に温度差が生じ、スタック１４の共鳴管開口１１ｂ側の端部は、共鳴管閉口１１ａ側の端部よりも温度が低くなる。 Specifically, in FIG. 7, mechanical power generated in the engine 1 drives the sound wave generator 41 via the driving means 42. Here, the sound wave generator 41 generates sound waves having a frequency corresponding to the frequency generated by the thermosonic wave generator 10, and the sound waves generated by the sound wave generator 41 are applied to the stack 14 from the open end 11 b of the resonance tube 11. It is configured to be.
In the resonance tube 11 on which the sound wave acts, due to a thermoacoustic phenomenon (a cycle in which heat is generated from work: reverse cycle), a temperature difference occurs at both ends in the longitudinal direction of the resonance tube 11 of the stack 14, and the resonance tube opening 11 b of the stack 14. The temperature at the end on the side is lower than that on the end on the resonance tube closing 11a side.

ここで、スタック１４の共鳴管閉口１１ａ側の端部に設けた熱交換器１２を流れる流体（例えば、空気）Ｅａｉｒが常温であれば、共鳴管開口１１ｂ側の端部は常温よりも低温となり、冷熱が生じる。
低温熱交換器１３においては空調装置の冷却媒体Ａと熱交換を行い、スタック１４の共鳴管開口１１ｂ側の端部に生じた冷熱を冷却媒体Ａに投入する。換言すれば、スタック１４の共鳴管開口１１ｂ側端部或いは低温熱交換器１３は、冷熱源として作用するのである。 Here, if the fluid (for example, air) Eair flowing through the heat exchanger 12 provided at the end of the stack 14 on the resonance tube closing 11a side is normal temperature, the end on the resonance tube opening 11b side is lower than normal temperature. Cold heat is generated.
In the low-temperature heat exchanger 13, heat exchange is performed with the cooling medium A of the air conditioner, and the cold generated at the end of the stack 14 on the resonance tube opening 11 b side is input to the cooling medium A. In other words, the end of the stack 14 on the resonance tube opening 11b side or the low-temperature heat exchanger 13 functions as a cold heat source.

なお、図示の実施形態は本発明の技術的範囲を限定する趣旨ではない。換言すれば、本発明は、上述した各実施形態に限定されるものではなく、熱音波発生器の音波エネルギーを利用した上記以外の自動車または機関の補機あるいは各種機器類、あるいは高低熱交換器に生じる温度差を利用した各種機器に、全て適用可能である。そして、それらの機器は、自動車の走行に関わるものに限らず、搭載される各種車載機器を含むものである。   The illustrated embodiment is not intended to limit the technical scope of the present invention. In other words, the present invention is not limited to each of the above-described embodiments. Other than the above, auxiliary equipment or various devices of automobiles or engines, or high and low heat exchangers using the sonic energy of the thermosonic generator. The present invention can be applied to all types of devices that use the temperature difference that occurs. These devices are not limited to those related to the traveling of an automobile, but include various on-vehicle devices to be mounted.

本発明の熱音響装置を自動車用内燃機関に装着した状態を示す図。The figure which shows the state which mounted | wore the internal combustion engine for motor vehicles with the thermoacoustic apparatus of this invention. 図１の熱音波発生器の排気管貫通部を示す斜視図。The perspective view which shows the exhaust pipe penetration part of the thermosonic generator of FIG. 本発明による発電に利用した実施形態の構成を説明する図。The figure explaining the structure of embodiment utilized for the electric power generation by this invention. 本発明による燃料霧化に利用した実施形態の構成を説明する図。The figure explaining the structure of embodiment utilized for the fuel atomization by this invention. 本発明による燃料混合に利用した実施形態の構成を説明する図。The figure explaining the structure of embodiment utilized for the fuel mixing by this invention. 本発明による複数液体の混合に利用した実施形態の構成を説明する図。The figure explaining the structure of embodiment utilized for mixing of the some liquid by this invention. 本発明による空調に利用した実施形態の構成を説明する図。The figure explaining the structure of embodiment utilized for the air conditioning by this invention. 熱音波発生器を説明する図。The figure explaining a thermosonic generator.

符号の説明Explanation of symbols

１・・・ガソリン機関
２・・・排気管
１０・・・熱音響音波発生装置（熱音波発生器）
１１・・・共鳴管
１２・・・高温熱交換器
１３・・・低温熱交換器
１４・・・スタック
２１・・・（エネルギー）回収手段
２２・・・（エネルギー）変換手段 1 ... gasoline engine 2 ... exhaust pipe 10 ... thermoacoustic sound generator (thermosonic generator)
DESCRIPTION OF SYMBOLS 11 ... Resonance tube 12 ... High temperature heat exchanger 13 ... Low temperature heat exchanger 14 ... Stack 21 ... (energy) recovery means 22 ... (energy) conversion means

Claims (3)

内燃機関の排気管の一部に拡幅部を設け、その拡幅部を貫通して熱音波発生器が設けられ、その熱音波発生器の一端は閉じて他端が開口された共鳴管と、その共鳴管内に挿入されたスタックとそのスタックの共鳴管閉口側端部に設けられた高温熱交換器とを有している熱音響装置において、前記共鳴管の開口側には発生音波と共振する共振手段が設けられ、燃料供給源から燃料が導かれる霧化機構が設けられ、該霧化機構に前記共振手段で発生した振動が伝達されて霧化された燃料が内燃機関へ供給されることを特徴とする熱音響装置。   A widened portion is provided in a part of the exhaust pipe of the internal combustion engine, a thermosonic generator is provided through the widened portion, one end of the thermosonic generator is closed and the other end is opened, and In a thermoacoustic apparatus having a stack inserted into a resonance tube and a high-temperature heat exchanger provided at a resonance tube closing side end of the stack, resonance that resonates with a generated sound wave is provided on the opening side of the resonance tube. Means is provided, and an atomization mechanism for introducing fuel from a fuel supply source is provided, and vibration generated by the resonance means is transmitted to the atomization mechanism so that the atomized fuel is supplied to the internal combustion engine. A featured thermoacoustic device. 内燃機関の排気管の一部に拡幅部を設け、その拡幅部を貫通して熱音波発生器が設けられ、その熱音波発生器の一端は閉じて他端が開口された共鳴管と、その共鳴管内に挿入されたスタックとそのスタックの共鳴管閉口側端部に設けられた高温熱交換器とを有している熱音響装置において、前記共鳴管の開口側には発生音波と共振する共振手段が設けられ、その共振手段からの振動が伝達される混合手段を有し、その混合手段には第１の液体と第２の液体とが供給されており、その混合手段で混合された第１および第２の液体が内燃機関の燃料供給手段に送られることを特徴とする熱音響装置。   A widened portion is provided in a part of the exhaust pipe of the internal combustion engine, a thermosonic generator is provided through the widened portion, one end of the thermosonic generator is closed and the other end is opened, and In a thermoacoustic apparatus having a stack inserted into a resonance tube and a high-temperature heat exchanger provided at a resonance tube closing side end of the stack, resonance that resonates with a generated sound wave is provided on the opening side of the resonance tube. And a mixing means for transmitting vibrations from the resonance means. The mixing means is supplied with the first liquid and the second liquid, and is mixed by the mixing means. A thermoacoustic apparatus, wherein the first and second liquids are sent to a fuel supply means of an internal combustion engine. 内燃機関の排気管の一部に拡幅部を設け、その拡幅部を貫通して熱音波発生器が設けられ、その熱音波発生器の一端は閉じて他端が開口された共鳴管と、その共鳴管内に挿入されたスタックとそのスタックの共鳴管閉口側端部に設けられた高温熱交換器とを有している熱音響装置において、前記共鳴管の開口側には発生音波と共振する共振手段が設けられ、その共振手段からの振動が伝達される混合手段を有し、その混合手段には第１の液体と第２の液体とが供給されており、その混合手段で混合された第１および第２の液体を圧送するポンプを有することを特徴とする熱音響装置。 A widened portion is provided in a part of the exhaust pipe of the internal combustion engine, a thermosonic generator is provided through the widened portion, one end of the thermosonic generator is closed and the other end is opened, and In a thermoacoustic apparatus having a stack inserted into a resonance tube and a high-temperature heat exchanger provided at a resonance tube closing side end of the stack, resonance that resonates with a generated sound wave is provided on the opening side of the resonance tube. And a mixing means for transmitting vibrations from the resonance means. The mixing means is supplied with the first liquid and the second liquid, and is mixed by the mixing means. A thermoacoustic apparatus having a pump for pumping the first and second liquids.
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