To prevent aeration when an oil surface in a case fluctuates without enlarging a vehicle drive device in a height direction.SOLUTION: An aeration prevention device includes: a ring gear having a side wall 52b protruding from an upper surface of a bottom wall of a case; multiple circumferential through holes 520 allowing communication between a radial inner space of the ring gear and a radial outer space; an oil passage formation part forming an oil passage which extends from a suction port facing the radial inner space and reaches an oil pump; a movable plate 90 which is disposed facing an outer peripheral surface of the side wall 52b so as to cover parts of the multiple circumferential through holes 520 and has a substantially arc shape; and a mechanical seal 94 and a snap ring 95 which support the movable plate 90 so that the movable plate 90 can move along the outer peripheral surface of the side wall 52b by gravity or inertia force acting on the movable plate 90.SELECTED DRAWING: Figure 5

    【課題】車両駆動装置を高さ方向に大型化することなく、ケース内の油面の変動時におけるエアレーションを防止する。【解決手段】エアレーション防止装置は、ケースの底壁の上面から突設された側壁52bを有するリングギアと、リングギアの径方向内側空間および径方向外側空間とを連通する周方向複数の貫通孔520と、径方向内側空間に面する吸込口からオイルポンプに至る油路を形成する油路形成部と、周方向複数の貫通孔520の一部を覆うように側壁52bの外周面に面して配置された略円弧状の可動プレート90と、可動プレート90に作用する重力または慣性力により可動プレート90を側壁52bの外周面に沿って移動可能に支持するメカニカルシール94,スナップリング95とを備える。【選択図】図5


    Access

    Download


    Export, share and cite



    Title :

    AERATION PREVENTION DEVICE


    Additional title:

    エアレーション防止装置


    Contributors:

    Publication date :

    2019-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING



    AERATION MEMBER AND AERATION DEVICE

    TEZUKA TEPPEI / YANO YOUZOU | European Patent Office | 2016

    Free access

    Small aeration-cooling device

    WANG JUN | European Patent Office | 2016

    Free access

    Aération

    BURRY CHARLES / DINANT BRUNO / REMY DAVID | European Patent Office | 2020

    Free access

    OIL AERATION

    PIGOTT, R. J. S. | SAE Technical Papers | 1944


    Lifting device for TPU aeration hose

    ZHANG MINGZHU / HIRAKUMO RYO / YAO AIXIAN | European Patent Office | 2024

    Free access