PROBLEM TO BE SOLVED: To provide a check valve for a negative pressure booster capable of improving durability and sealability.SOLUTION: A check valve 18 includes a valve seat 33, a valving element 37 having a circular disk 39 and a tubular type seal lip 41 rising from the outer periphery of the circular disk 39 toward the valve seat 33, a valve support 38 for supporting the circular disk 39 from the rear by a mountain-shaped surface 42 receding from the rear face of the circular disk 39 gradually as approaching the outer periphery of the circular disk 39, and a stopper mechanism ST for regulating movement of the valve support 38 toward the valve seat 33 at a seating time of the seal lip 41.SELECTED DRAWING: Figure 3

    【課題】耐久性およびシール性を向上することができる負圧ブースタ用チェックバルブを提供する。【解決手段】チェックバルブ18は、弁座33と、円板39および当該円板39の外周から弁座33に向かって立ち上がる円筒形状のシールリップ41を有する弾性体の弁体37と、円板39の外周に向かうにつれて円板39の裏面から遠ざかる山形面42で円板39を背後から支持する弁支持体38と、シールリップ41の着座時に弁座33に向かう弁支持体38の移動を規制するストッパ機構STとを備える。【選択図】図3


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    Title :

    CHECH VALVE FOR NEGATIVE PRESSURE BOOSTER


    Additional title:

    負圧ブースタ用チェックバルブ


    Contributors:

    Publication date :

    2017-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16K VALVES , Ventile



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