PROBLEM TO BE SOLVED: To suppress a shut-off torque of a butterfly valve in a valve-closed state.SOLUTION: A butterfly valve includes a valve body 18 which can adjust an open/close state or opening of a passage 16 by rotating along with a shaft 20. The valve body 18 includes a plate 72, and an elastic member 74 arranged along an outer circumferential portion of the plate 72, and is attached/detached on an inner surface of the passage 16 so as to form an angle smaller than 90 degree with respect to an axis line of the passage 16. The elastic member 74 has bead portions 100-106 protruding from a side of the plate 72 toward the inner surface of the passage 16. The bead portions are closely attached along the inner surface of the passage 16.SELECTED DRAWING: Figure 7

    【課題】バタフライバルブの閉弁時の締め切りトルクを抑制する。【解決手段】バタフライバルブは、シャフト20と共に回動することにより通路16の開閉状態又は開度を調整可能な弁体18を備える。弁体18は、プレート72と、そのプレート72の外周部に沿って配設された弾性部材74を含み、通路16の軸線に対して90度よりも小さい角度をなすように通路16の内面に着脱する。弾性部材74は、プレート72側から通路16の内面に向けて突出するビード部100〜106を有し、閉弁時には上記ビード部が通路16の内面に沿って密着する。【選択図】図7


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    Titel :

    BUTTERFLY VALVE


    Weitere Titelangaben:

    バタフライバルブ


    Beteiligte:
    ANDO TOSHIHIRO (Autor:in) / SATO MISAKI (Autor:in) / UEKI KIYOTAKA (Autor:in)

    Erscheinungsdatum :

    2017-11-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16K VALVES , Ventile / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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