PROBLEM TO BE SOLVED: To prevent a fuel gas from flowing backward between multistage compression mechanisms when stopping supply of the fuel gas pressurized by using the multistage compression mechanisms to an engine.SOLUTION: A fuel gas supply system comprises a fuel gas source 12 and multistage compression mechanisms 13a-13e connected in series. The compression mechanisms respectively comprise gas compressors 16a-16e, low-pressure gas flow passages, high-pressure gas flow passages, bypass pipes 24a-24e connecting the low-pressure gas flow passages and the high-pressure gas flow passages, and control valves for controlling the flow rates of a fuel gas in the bypass pipes. Gas supply lines connecting the plurality of compression mechanisms are provided with check valves 32a-32d for preventing the fuel gas from flowing backward in a reverse direction to a supply direction, respectively.SELECTED DRAWING: Figure 1

    【課題】多段の圧縮機構を用いて加圧した燃料ガスのエンジンへの供給を停止するとき、多段の圧縮機構の間で、燃料ガスが逆流することを阻止する。【解決手段】燃料ガス供給システムは、燃料ガス源12と、直列接続された多段の圧縮機構13a〜13eと、を備え、前記圧縮機構のそれぞれは、ガスコンプレッサ16a〜16eと、低圧ガス流路と、高圧ガス流路と、前記低圧ガス流路と前記高圧ガス流路の間を繋ぐバイパス管24a〜24eと、前記バイパス管における前記燃料ガスの流量を制御する制御バルブと、を備える。前記複数の圧縮機構の間を結ぶガス供給ラインのそれぞれに、前記燃料ガスが前記供給方向の逆方向に向かって逆流することを阻止する逆止弁32a〜32dが設けられる。【選択図】図1


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    Title :

    FUEL GAS SUPPLY SYSTEM AND FUEL GAS SUPPLY METHOD


    Additional title:

    燃料ガス供給システム及び燃料ガス供給方法


    Contributors:

    Publication date :

    2017-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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