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6 条记录 (耗时 0.01 秒)

    Pistons for internal combustion engines or for compressors
    4.
    发明授权
    Pistons for internal combustion engines or for compressors 失效
    用于内燃机或压缩机的活塞

    公开(公告)号：US3908521A

    公开(公告)日：1975-09-30

    申请号：US44447774

    申请日：1974-02-21

    申请人： HEPWORTH & GRANDAGE LTD

    发明人： COCKCROFT FREDERICK EDWARD

    IPC分类号： F02F3/04 ,  F16J1/04 ,  F16J1/06

    CPC分类号： F02F3/04 ,  F02F3/042 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  F16J1/04 ,  F16J1/06

    摘要： A light metal piston, for an internal combustion engine or a compressor, has a crown with a skirt integrally connected to the crown around the opposing thrust faces of the piston and providing a closed internal cavity with the crown. An insert of lower coefficient of expansion than the light metal, conforming to the internal shape of the skirt, is superimposed on the inner surface of the skirt. The insert is formed as two independent parallel bands extending from a gudgeon pin boss, the bands being joined by a connecting portion. One of the bands is an upper band positioned nearer the crown while the other band is a lower one positioned nearer to the open end of the skirt with the upper band exerting much less control than the lower band.

    摘要翻译： 用于内燃机或压缩机的轻金属活塞具有冠部，其具有围绕活塞的相对推力面一体地连接到冠部的裙部，并且提供具有冠部的封闭内部空腔。 与裙部的内部形状一致的比轻金属更低的膨胀系数的插入件重叠在裙部的内表面上。 插入件形成为从舵头凸台延伸的两个独立的平行带，该带通过连接部分连接。 其中一个乐队是位于更接近皇冠的上一个乐队，而另一个乐队是位于裙子开口端的较低乐队，上方的乐队比较低乐队的控制少得多。

    Metal casting apparatus with mechanism for immersing jig and mould
    5.
    发明授权
    Metal casting apparatus with mechanism for immersing jig and mould 失效
    金属铸造设备与机械夹具和模具

    公开(公告)号：US3786857A

    公开(公告)日：1974-01-22

    申请号：US3786857D

    申请日：1971-05-07

    申请人： HEPWORTH & GRANDAGE LTD

    发明人： SUTHERLAND A

    IPC分类号： B22C9/20 ,  B22D21/00 ,  B22D23/04 ,  B22D47/00 ,  B22D23/00

    CPC分类号： B22D23/04 ,  B22C9/20 ,  B22D21/007 ,  B22D47/00

    摘要： This invention relates to a process for casting articles from molten metal by the immersion of a mould or stack of moulds carried in a jig into a melt of the metal to be cast such that the cavity or cavities in the or each mould become filled with molten metal as the jig is immersed in the melt, whereafter the jig carrying the mould or stack of moulds is removed from the melt. Each mould cavity has a permanently open ingate and at least some of the heated air or gas within the cavity escapes through the ingate as the ingate passes through the surface of the melt, thereby preventing the entry of impurities from the surface of the melt into the cavity.

    摘要翻译： 本发明涉及一种用熔融金属浇铸制品的方法，该方法是将一个夹具中的一个模具或一堆模子浸入待铸造的金属熔体中，使得该模具或每个模具中的空腔或熔融物充满熔融 将金属作为夹具浸入熔体中，然后从模具中取出模具或模具堆叠的夹具。 每个模腔具有永久开放的浇口，并且空腔中的至少一些加热空气或气体随着浇口穿过熔体表面而逸出，从而防止杂质从熔体表面进入到 腔。