The present invention not only creates a pleasant indoor environment by eliminating noise generated when supplying or blocking high-pressure hydrogen by installing a sound-absorbing material on the outer surface of a hydrogen supply valve, but also obtains a noise reduction effect of about 2 dB point in the high-frequency band (4 to 8 kHz) generated during operation of the hydrogen supply valve. In addition, when the sound-absorbing material is formed, soft polyurethane foam is integrally foamed or attached to the surface of an injection-molded product, which is injection molded out of synthetic resin to form the external shape of the hydrogen supply valve, thereby making it lightweight, easy to manufacture, and convenient to use. By separating the sound-absorbing material into two pieces to be easily assembled or disassembled at a time, the sound absorbing material can be easily and conveniently separated or reassembled at any time when it is necessary to separate the sound absorbing material from the hydrogen supply valve.

    본 발명은 수소 공급 밸브 외면에 흡차음재를 장착함으로, 고압의 수소를 공급하거나 차단할 때 발생하는 소음을 제거하여 쾌적한 실내 환경을 조성할 수 있을 뿐만 아니라, 특히 수소 공급 밸브의 작동 중에 발생하는 고주파 대역(4~8㎑)에서 약 2㏈ 포인트 정도 소음 개선 효과를 얻을 수 있다. 또한, 흡음재를 구성할 때 수소 공급 밸브의 외형 형태가 되게 합성수지로 사출한 사출물의 표면에 연질의 폴리우레탄 폼을 발포하거나 부착하여 일체로 형성함으로써, 가벼우면서도 쉽게 제작하여 편리하게 사용할 수 있다. 그리고 흡음재를 두 개로 분리하여 한 번에 쉽게 조립하거나 분리할 수 있게 구성함으로써, 수소 공급 밸브에서 흡음재를 분리할 필요가 있을 때는 언제든지 쉽고 편리하게 흡음재를 분리하거나 다시 조립할 수 있다.


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    Title :

    FCEV HYDROGEN SUPPLYING VALVE FOR FCEV WITH IMPROVED NOISE PERFORMANCE


    Additional title:

    소음 성능이 개선된 FCEV용 수소 공급 밸브


    Contributors:

    Publication date :

    2024-04-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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