JPH0583497U - Vibration control device - Google Patents
Vibration control deviceInfo
- Publication number
- JPH0583497U JPH0583497U JP3101391U JP3101391U JPH0583497U JP H0583497 U JPH0583497 U JP H0583497U JP 3101391 U JP3101391 U JP 3101391U JP 3101391 U JP3101391 U JP 3101391U JP H0583497 U JPH0583497 U JP H0583497U
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- Prior art keywords
- vibration
- fluid transfer
- hose
- transfer pipe
- respect
- Prior art date
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Abstract
(57)【要約】
【目的】 流体移送機器から流体移送管への伝播振動を
吸収できるようにし、この振動よって発生する騒音を低
下させる。
【構成】 水ポンプ７に接続されたホ−ス１０に、ホ−
ス１０の軸心を中心とする振動に対し位相が遅れて振動
し、且つホ−ス１０の長さ方向の振動の進行波に対して
位相の遅れた反射波を発生する振動吸収子２０を取付
け、振動騒音を吸収する。
(57) [Abstract] [Purpose] It is possible to absorb the propagation vibration from the fluid transfer device to the fluid transfer pipe, and reduce the noise generated by this vibration. [Structure] The hose 10 connected to the water pump 7 is connected to the hose.
A vibration absorber 20 that vibrates with a delay in phase with respect to the vibration centered on the axis of the hose 10 and generates a reflected wave with a delay in phase with respect to the traveling wave of the vibration in the longitudinal direction of the hose 10. Install and absorb vibration noise.
Description
【０００１】[0001]
本考案はポンプ等から振動騒音を発生する床暖房装置等に設けられた制振装置 に関するものである。 The present invention relates to a vibration damping device provided in a floor heating device or the like that generates vibration noise from a pump or the like.
【０００２】[0002]
従来、図６乃至図８に示した床暖房装置が知られている。 Conventionally, the floor heating device shown in FIGS. 6 to 8 is known.
【０００３】 この床暖房装置は、開放型の暖房機本体１と、内部に温水を流通する床暖房パ ネル２とからなり、暖房機本体１と床暖房パネル２はホ−ス３によって接続され ている。暖房機本体１の前面開口部の奥には反射板２が取付けられ、反射板２の 前方には燃焼筒３が配置されている。また、暖房機本体１の下部は機械室４にな っており、その内部には燃焼筒３の下部に配置されたバ−ナ５、バ−ナ５に燃料 を供給する油量調節器６、床暖房パネル２に温水を循環する流体移送機器として の水ポンプ７等が収容され、機械室４の前面パネルには操作部８が設けられてい る。更に、反射板２の裏側には貯湯タンク９が設置されている。この貯湯タンク ９は流体移送管としてのゴム製ホ−ス１０を介して水ポンプ７の吸入口に接続さ れ、ホ−ス１０の両端はホ−スバンド１１によってそれぞれ固定されている。図 示を省略したが、床暖房パネル２に接続するホ−ス３は送り管と戻り管とからな り、送り管を水ポンプ７の吐出口に、戻り管を貯湯タンク９にそれぞれ接続して いる。また、水ポンプ７はその脚部７ａを固定金具１２を介して機械室４の底板 １３に固定されるとともに、脚部７ａと底板１３との間には防振ゴム１４が介装 されている。This floor heating system comprises an open type heater body 1 and a floor heating panel 2 in which hot water is circulated. The heater body 1 and floor heating panel 2 are connected by a hose 3. ing. A reflector 2 is attached to the inside of the front opening of the heater body 1, and a combustion tube 3 is arranged in front of the reflector 2. Further, the lower part of the heater main body 1 is a machine room 4, and inside thereof, a burner 5 arranged at the lower part of the combustion cylinder 3, and an oil amount controller 6 for supplying fuel to the burner 5. A water pump 7 as a fluid transfer device for circulating hot water is housed in the floor heating panel 2, and an operation unit 8 is provided on the front panel of the machine room 4. Further, a hot water storage tank 9 is installed on the back side of the reflector 2. The hot water storage tank 9 is connected to the suction port of the water pump 7 through a rubber hose 10 as a fluid transfer pipe, and both ends of the hose 10 are fixed by hose bands 11. Although not shown, the hose 3 connected to the floor heating panel 2 is composed of a feed pipe and a return pipe. The feed pipe is connected to the discharge port of the water pump 7, and the return pipe is connected to the hot water storage tank 9. ing. The leg portion 7a of the water pump 7 is fixed to the bottom plate 13 of the machine room 4 via the fixing metal fitting 12, and the anti-vibration rubber 14 is interposed between the leg portion 7a and the bottom plate 13. ..
【０００４】[0004]
従来では、防振ゴム１４によって水ポンプ７の振動が底板１３に伝わるのを防 止することはできるが、水ポンプ７の振動はホ−ス１０にも伝播し、更には貯湯 タンク９をも振動させる。このため、ホ−ス１０や貯湯タンク９から低周波の振 動騒音が発生し、周囲の人員に不快感を与えるという問題点があった。 Conventionally, the vibration proof rubber 14 can prevent the vibration of the water pump 7 from being transmitted to the bottom plate 13, but the vibration of the water pump 7 is also propagated to the hose 10 and also the hot water storage tank 9. Vibrate. Therefore, vibration noise of low frequency is generated from the hose 10 and the hot water storage tank 9, and there is a problem in that the surrounding personnel are uncomfortable.
【０００５】 本考案は前記問題点に鑑みてなされたものであり、その目的とするところは、 流体移送機器の発生する振動騒音を低下させることのできる制振装置を提供する ことにある。The present invention has been made in view of the above problems, and an object of the present invention is to provide a vibration damping device capable of reducing vibration noise generated by a fluid transfer device.
【０００６】[0006]
本考案は前記目的を達成するために、請求項１では、振動による騒音を発生す る流体移送機器に接続された流体移送管の所定部位に、該流体移送管の振動に対 し位相が遅れて振動する振動吸収子を取付けている。 In order to achieve the above object, the present invention provides, in claim 1, a phase delay relative to the vibration of the fluid transfer pipe at a predetermined portion of the fluid transfer pipe connected to a fluid transfer device that generates noise due to vibration. It has a vibration absorber that vibrates.
【０００７】 また、請求項２では、振動による騒音を発生する流体移送機器に接続された流 体移送管の所定部位に、該流体移送管に伝播する振動の進行波に対し位相の遅れ た反射波を発生する振動吸収子を取付けている。Further, according to a second aspect of the present invention, the reflection is delayed in phase with respect to the traveling wave of the vibration propagating to the fluid transfer pipe, at a predetermined portion of the fluid transfer pipe connected to the fluid transfer device that generates noise due to the vibration. A vibration absorber that generates waves is attached.
【０００８】 また、請求項３また、振動による騒音を発生する流体移送機器に接続された流 体移送管の所定部位に、該流体移送管の振動に対し位相が遅れて振動し、且つ流 体移送管に伝播する振動の進行波に対し位相の遅れた反射波を発生する振動吸収 子を取付けている。According to a third aspect of the present invention, a fluid transfer pipe connected to a fluid transfer device that generates noise due to vibration vibrates at a predetermined position with a phase delay with respect to the vibration of the fluid transfer pipe, and A vibration absorber is installed that generates a reflected wave that is delayed in phase with respect to the traveling wave of vibration propagating to the transfer pipe.
【０００９】 また、請求項４では、前記振動吸収子に固有振動数の可変構造を設けている。According to a fourth aspect, the vibration absorber is provided with a variable structure of a natural frequency.
【００１０】[0010]
請求項１の制振装置によれば、流体移送機器の振動によって流体移送管が振動 すると、振動吸収子が流体移送管の振動に対し位相が遅れて振動する。これによ り、流体移送管の振動と振動吸収子の振動とが互いに打消し合い、振動の吸収が 図られる。 According to the vibration damping device of the first aspect, when the fluid transfer pipe vibrates due to the vibration of the fluid transfer device, the vibration absorber vibrates with a phase delay with respect to the vibration of the fluid transfer pipe. Thereby, the vibration of the fluid transfer pipe and the vibration of the vibration absorber cancel each other out, and the vibration is absorbed.
【００１１】 また、請求項２の制振装置によれば、流体移送機器の振動が流体移送管に伝播 すると、振動吸収子がこの伝播振動の進行波に対し位相が遅れた反射波を発生す る。これにより、流体移送管において進行波と反射波とが互いに打消し合い、振 動の吸収が図られる。According to the vibration damping device of the second aspect, when the vibration of the fluid transfer device propagates to the fluid transfer pipe, the vibration absorber generates a reflected wave whose phase is delayed with respect to the traveling wave of the propagating vibration. It As a result, the traveling wave and the reflected wave cancel each other in the fluid transfer pipe, and the vibration is absorbed.
【００１２】 また、請求項３の制振装置によれば、請求項１及び２の作用を有する。According to the vibration damping device of the third aspect, the actions of the first and second aspects are obtained.
【００１３】 また、請求項４の制振装置によれば、請求項１または３の作用を有するととも に、振動吸収子の固有振動数を変えることにより、その位相の遅れ量を調整する ことが可能となる。According to the vibration damping device of the fourth aspect, in addition to having the action of the first or third aspect, the amount of delay of the phase is adjusted by changing the natural frequency of the vibration absorber. Is possible.
【００１４】[0014]
図１乃至図５は本考案の一実施例を示すもので、従来例と同一の構成部分には 同一符号を付して示す。即ち、７は水ポンプ、９は貯湯タンク、１０はホ−スで ある。 1 to 5 show an embodiment of the present invention, in which the same components as in the conventional example are designated by the same reference numerals. That is, 7 is a water pump, 9 is a hot water storage tank, and 10 is a hose.
【００１５】 同図において、２０はホ−ス１０の略中間に取付けられた振動吸収子で、ホ− ス１０に巻着するワイヤ２１と、ワイヤ２１に支持されたボルト２２とからなる 。ボルト２２は、ねじ部２２ａと、ねじ部２２ａの一端に形成された頭部２２ｂ と、ねじ部２２ａの他端側に形成された細軸部２２ｃとからなり、ねじ部２２ａ にはナット板２３が螺合され、細軸部２２ｃにはワッシャ２４が挿入されている 。一方、ワイヤ２１はその長さ方向の中央部にて同一方向に折曲するとともに、 この折曲部２２ｂでボルト２２の細軸部２２ｂを挟持しワッシャ２４に係止して いる。また、ワイヤ２１の両端側はそれぞれホ−ス１０の外周を一周巻回すると ともに、その先端側が該巻回方向の反対方向に湾曲し、ナット板２３の一端側に 差し込まれている。この振動吸収子２０においては、ボルト２２を回動すること により、ボルト２２がワッシャ２４に対して螺進退してナット板２３とワッシャ ２４との距離が変わるようになっている。即ち、ボルト２２を回動してナット板 ２３とワッシャ２４との距離を広げることにより、ワイヤ２１のホ−ス巻回部分 の内径が小さくなり、ホ−ス１０が締め付けられる。In FIG. 1, reference numeral 20 is a vibration absorber attached to the middle of the hose 10 and comprises a wire 21 wound around the hose 10 and a bolt 22 supported by the wire 21. The bolt 22 includes a screw portion 22a, a head portion 22b formed at one end of the screw portion 22a, and a thin shaft portion 22c formed at the other end side of the screw portion 22a. The screw portion 22a includes a nut plate 23a. Is screwed in, and a washer 24 is inserted in the thin shaft portion 22c. On the other hand, the wire 21 is bent in the same direction at the center in the lengthwise direction, and the thin shaft portion 22b of the bolt 22 is sandwiched by the bent portion 22b and locked to the washer 24. Both ends of the wire 21 are wound around the outer circumference of the hose 10 once, and the tip ends thereof are bent in the opposite direction of the winding direction and are inserted into one end of the nut plate 23. In this vibration absorber 20, by rotating the bolt 22, the bolt 22 is screwed back and forth with respect to the washer 24 so that the distance between the nut plate 23 and the washer 24 is changed. That is, by rotating the bolt 22 to increase the distance between the nut plate 23 and the washer 24, the inner diameter of the hose winding portion of the wire 21 is reduced, and the hose 10 is tightened.
【００１６】 ここで、図２を参照し本実施例の第１の制振動作を説明する。Here, the first damping operation of the present embodiment will be described with reference to FIG.
【００１７】 まず、水ポンプ７の振動によってホ−ス１０が振動し、ホ−ス１０はその軸心 方向（図中実線矢印）に振動するものと仮定する。この場合、振動吸収子２０は ホ−ス１０の軸心を中心として振動するが、振動吸収子２０の振動はホ−ス１０ の弾性によってホ−ス１０の振動に対して位相が遅れる。これにより、ホ−ス１ ０の振動と振動吸収子２０の振動とが互いに振幅を打消し合い、振動が吸収され 騒音が減少する。尚、位相の遅れ量は振動吸収子２０の固有振動数によって決ま るので、固有振動数を変えられるようにした振動吸収子３０を図３に示した。こ の振動吸収子３０は、前述と同様のワイヤ３１と、ねじ部３２ａ及び頭部３２ｂ からなるボルト３２と、前述と同様のナット板２３とを有し、前記ワッシャ２４ の代りに六角ナット３４を設けている。この振動吸収子３０においては、ボルト ３２を固定した状態で六角ナット３４を回動することにより、ナット板３３のみ が螺進退してナット板３３と六角ナット３４との距離が変わり、前述と同様にホ −ス１０を締め付けられるようになっている。また、ナット板３３及び六角ナッ ト３４の両者を固定した状態でボルト３２を回動すると、ナット板３３及び六角 ナット３４間の距離は変わらずに、ナット板３３とボルト２２の頭部３２ｂとの 距離みが変化する。これにより、振動吸収子３０の重心の位置が変化し、その固 有振動数を変えられるようになっている。従って、振動吸収子３０の固有振動数 を変えて位相の遅れ量を調整することにより、制振効果の最も高い状態を得るこ とができる。First, it is assumed that the hose 10 vibrates due to the vibration of the water pump 7, and the hose 10 vibrates in the axial direction (solid line arrow in the figure). In this case, the vibration absorber 20 vibrates about the axis of the hose 10, but the vibration of the vibration absorber 20 is delayed in phase with respect to the vibration of the hose 10 due to the elasticity of the hose 10. As a result, the vibration of the hose 10 and the vibration of the vibration absorber 20 cancel each other out, so that the vibration is absorbed and the noise is reduced. Since the amount of phase delay is determined by the natural frequency of the vibration absorber 20, a vibration absorber 30 whose natural frequency can be changed is shown in FIG. The vibration absorber 30 has a wire 31 similar to that described above, a bolt 32 including a screw portion 32a and a head portion 32b, and a nut plate 23 similar to that described above. Instead of the washer 24, a hexagon nut 34 is used. Is provided. In this vibration absorber 30, by rotating the hexagon nut 34 with the bolt 32 fixed, only the nut plate 33 is screwed back and forth to change the distance between the nut plate 33 and the hexagon nut 34. The hose 10 can be tightened. When the bolt 32 is rotated with both the nut plate 33 and the hexagon nut 34 fixed, the distance between the nut plate 33 and the hexagon nut 34 does not change, and the nut plate 33 and the head portion 32b of the bolt 22 are not changed. Distance changes. As a result, the position of the center of gravity of the vibration absorber 30 changes, and its inherent frequency can be changed. Therefore, by adjusting the amount of phase delay by changing the natural frequency of the vibration absorber 30, it is possible to obtain the state in which the damping effect is the highest.
【００１８】 次に、図４を参照し本実施例の第２の制振動作を説明する。Next, a second damping operation of the present embodiment will be described with reference to FIG.
【００１９】 まず、水ポンプ７で発生した振動がホ−ス１０の長さ方向に伝播するものと仮 定する。図４に示すように、ホ−ス１０は振動吸収子２０のワイヤ２１によって 締め付けられているため、ホ−ス１０にワイヤ２１が食い込んだ分、ホ−ス１０ が絞られて内部の断面積が小さくなる。この絞り部分にホ−ス１０に伝播する振 動の進行波を当て、ホ−ス１０内の水の表面に進行波に対して位相の遅れた反射 波を発生させることにより、これら進行波と反射波とが互いに振幅を打消し合い 、振動が吸収され騒音が減少する。尚、ホ−ス１０の内径Ａと絞り部分の内径Ｂ との比を１：０．８程度とするのが最も効果的である。First, it is assumed that the vibration generated by the water pump 7 propagates in the length direction of the hose 10. As shown in FIG. 4, since the hose 10 is fastened by the wire 21 of the vibration absorber 20, the hose 10 is squeezed by the amount of the wire 21 biting into the hose 10 and the inner cross-sectional area is reduced. Becomes smaller. The traveling wave of the vibration propagating to the hose 10 is applied to this constricted portion, and a reflected wave whose phase is delayed with respect to the traveling wave is generated on the surface of the water in the hose 10, so that the traveling wave The reflected waves cancel out each other's amplitude, vibrations are absorbed and noise is reduced. It is most effective to set the ratio of the inner diameter A of the hose 10 to the inner diameter B of the narrowed portion to about 1: 0.8.
【００２０】 また、本実施例の制振効果は考案者の実験によって実証されており、その実験 デ−タを図５のグラフに示す。このデ−タによると、振動吸収子２０を取付けて いないもの（図中実線）の最大騒音値は周波数３００Ｈｚで３４．４ｄＢを示し 、取付けたもの（図中破線）は３１．７ｄＢを示した。一般に、騒音値が３ｄＢ 下がると音のエネルギ−は約半分になり、前記実験結果では騒音値が２．７ｄＢ 減少したので、音のエネルギ−に換算すると約半分強の騒音低下が図られたこと になる。The vibration damping effect of this embodiment has been verified by an experiment by the inventor, and the experimental data is shown in the graph of FIG. According to this data, the maximum noise value of the one without the vibration absorber 20 (solid line in the figure) was 34.4 dB at the frequency of 300 Hz, and the one with the vibration absorber 20 (broken line in the figure) was 31.7 dB. .. Generally, when the noise value is lowered by 3 dB, the sound energy is reduced to about half, and the noise value is reduced by 2.7 dB in the above experimental result. become.
【００２１】 このように、本実施例の制振装置によれば、水ポンプ７に接続されたホ−ス１ ０に、ホ−ス１０の軸心を中心とする振動に対し位相が遅れて振動し、且つホ− ス１０の長さ方向の振動の進行波に対して位相の遅れた反射波を発生する振動吸 収子２０を取付けたので、ホ−ス１０への伝播振動によって発生する騒音を約半 分強まで低下させることができ、静かで快適な暖房空間を提供することができる 。As described above, according to the vibration damping device of this embodiment, the phase of the hose 10 connected to the water pump 7 is delayed with respect to the vibration around the axis of the hose 10. Since the vibration absorber 20 that vibrates and generates a reflected wave whose phase is delayed with respect to the traveling wave of the vibration in the longitudinal direction of the hose 10, is generated by the vibration propagated to the hose 10. Noise can be reduced to more than half, and a quiet and comfortable heating space can be provided.
【００２２】 尚、前記実施例では制振装置の取付例として床暖房装置を示したが、圧縮機に 冷媒管を接続した各種冷凍装置等にも有効である。In the above embodiment, the floor heating device is shown as an example of mounting the vibration damping device, but it is also effective for various refrigerating devices in which a refrigerant pipe is connected to the compressor.
【００２３】[0023]
以上説明したように、請求項１、２及び３の制振装置によれば、流体移送機器 から流体移送管への伝播振動によって発生する騒音を大幅に低下させることがで きるので、流体移送機器を備えた各種装置の騒音対策に有効である。 As described above, according to the vibration damping device of claims 1, 2 and 3, the noise generated by the vibration propagating from the fluid transfer device to the fluid transfer pipe can be significantly reduced, and therefore the fluid transfer device. It is effective for noise control of various devices equipped with.
【００２４】 また、請求項４の制振装置によれば、請求項１または３の効果を有するととも に、位相の遅れ量を調整することができるので、制振効果の最も高い状態を得る ことができる。Further, according to the vibration damping device of the fourth aspect, in addition to having the effect of the first or third aspect, it is possible to adjust the phase delay amount, so that the state in which the vibration damping effect is the highest is obtained. be able to.
【図１】本考案の一実施例を示す床暖房装置の要部側面
図である。FIG. 1 is a side view of a main part of a floor heating system showing an embodiment of the present invention.
【図２】本考案の一実施例を示す制振装置の正面図であ
る。FIG. 2 is a front view of a vibration damping device showing an embodiment of the present invention.
【図３】振動吸収子の変形例を示す側面図である。FIG. 3 is a side view showing a modified example of the vibration absorber.
【図４】本考案の一実施例を示すホ−スの要部断面図で
ある。FIG. 4 is a sectional view of a main part of a hose showing an embodiment of the present invention.
【図５】本考案の一実施例を示す制振装置の制振効果を
示すグラフである。FIG. 5 is a graph showing a vibration damping effect of a vibration damping device according to an embodiment of the present invention.
【図６】従来例を示す床暖房装置の全体斜視図である。FIG. 6 is an overall perspective view of a floor heating device showing a conventional example.
【図７】従来例を示す床暖房装置の要部側面図である。FIG. 7 is a side view of a main part of a floor heating device showing a conventional example.
【図８】水ポンプの部分拡大図FIG. 8 is a partially enlarged view of the water pump.
７…水ポンプ、１０…ホ−ス、２０，３０…振動吸収子 7 ... Water pump, 10 ... Hose, 20, 30 ... Vibration absorber
Claims (4)
に接続された流体移送管の所定部位に、該流体移送管の
振動に対し位相が遅れて振動する振動吸収子を取付けた
ことを特徴とする制振装置。1. A vibration absorber, which vibrates with a phase delay with respect to the vibration of the fluid transfer pipe, is attached to a predetermined portion of the fluid transfer pipe connected to a fluid transfer device that generates noise due to vibration. Vibration control device.
に接続された流体移送管の所定部位に、該流体移送管に
伝播する振動の進行波に対し位相の遅れた反射波を発生
する振動吸収子を取付けたことを特徴とする制振装置。2. A vibration absorbing device for generating a reflected wave, which is delayed in phase with respect to a traveling wave of vibration propagating to the fluid transfer pipe, at a predetermined portion of the fluid transfer pipe connected to a fluid transfer device that generates noise due to vibration. A vibration damping device characterized by having a child attached.
に接続された流体移送管の所定部位に、該流体移送管の
振動に対し位相が遅れて振動し、且つ流体移送管に伝播
する振動の進行波に対し位相の遅れた反射波を発生する
振動吸収子を取付けたことを特徴とする制振装置。3. A vibration that vibrates in a predetermined portion of a fluid transfer pipe connected to a fluid transfer device that generates noise due to vibration, with a phase delay with respect to the vibration of the fluid transfer pipe, and that propagates to the fluid transfer pipe. A vibration damping device comprising a vibration absorber that generates a reflected wave that is delayed in phase with respect to a traveling wave.
を設けたことを特徴とする請求項１または３記載の制振
装置。4. The vibration damping device according to claim 1, wherein the vibration absorber is provided with a variable structure of a natural frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101391U JPH0583497U (en) | 1991-05-07 | 1991-05-07 | Vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101391U JPH0583497U (en) | 1991-05-07 | 1991-05-07 | Vibration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0583497U true JPH0583497U (en) | 1993-11-12 |
Family
ID=12319664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3101391U Pending JPH0583497U (en) | 1991-05-07 | 1991-05-07 | Vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0583497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010212121A (en) * | 2009-03-11 | 2010-09-24 | Honda Motor Co Ltd | Fuel cell vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5135533U (en) * | 1974-09-05 | 1976-03-17 | ||
| JPH0567895B2 (en) * | 1988-06-15 | 1993-09-27 | Tlv Co Ltd |
-
1991
- 1991-05-07 JP JP3101391U patent/JPH0583497U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5135533U (en) * | 1974-09-05 | 1976-03-17 | ||
| JPH0567895B2 (en) * | 1988-06-15 | 1993-09-27 | Tlv Co Ltd |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010212121A (en) * | 2009-03-11 | 2010-09-24 | Honda Motor Co Ltd | Fuel cell vehicle |
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