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281 条记录 (耗时 0.017 秒)

    Composite piston
    41.
    发明授权
    Composite piston 失效
    复合活塞

    公开(公告)号：US4306489A

    公开(公告)日：1981-12-22

    申请号：US90447

    申请日：1979-11-01

    申请人： Howard D. Driver ,  Frank H. Doyal, II

    发明人： Howard D. Driver ,  Frank H. Doyal, II

    IPC分类号： F02F3/10 ,  F02B75/02 ,  F02F3/12 ,  F02F7/00 ,  F16J1/00

    CPC分类号： F02F7/0085 ,  F02F3/12 ,  F02B2075/027 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0882 ,  F05C2251/042 ,  F05C2253/16

    摘要： A composite piston for internal combustion engines is provided. The base structure of the piston is formed from a fiber-reinforced resin material. Covering the head portion of the base structure and integral therewith is a cap portion formed of a nonflammable material such as metal, metal alloys and ceramics. The cap and head portion of the piston have an outer diameter which is less than the outer diameter of the piston body by an amount sufficient to accommodate for the difference in the thermal coefficient of expansion of the material of the cap and the material of the base structure.

    摘要翻译： 提供了一种用于内燃机的复合活塞。 活塞的基部结构由纤维增强树脂材料形成。 覆盖基部结构的头部并与其成一体的是由诸如金属，金属合金和陶瓷的不燃材料形成的帽部。 活塞的盖帽和头部的外径小于活塞体的外径，其尺寸足以适应盖的材料和基体的材料的热膨胀系数的差异 结构体。

    Piston sealing
    42.
    发明授权
    Piston sealing 失效
    活塞密封

    公开(公告)号：US4250953A

    公开(公告)日：1981-02-17

    申请号：US824189

    申请日：1977-08-12

    申请人： Vannevar Bush

    发明人： Vannevar Bush

    IPC分类号： F02F3/10 ,  F28D15/00

    CPC分类号： F02F3/10 ,  F05C2201/0448 ,  F05C2201/046

    摘要： Ceramic coatings prevent metal to metal contact between double acting pistons and cylinders. Cylinders and pistons operate in true cylindrical form. Ceramic coated cylinders are gradually brought to operating temperatures while temporary cutting pistons shape the coating to a true cylinder at operating temperature. Cylinders are formed true while cold and cylinders and heads are jacketed with high heat flow conductors so that the cylinders and cylinder heads have uniform operating temperature.

    摘要翻译： 陶瓷涂层防止双作用活塞和气缸之间的金属与金属接触。 气缸和活塞以真实的圆柱形式运行。 陶瓷涂层滚筒逐渐达到工作温度，临时切割活塞将涂层在工作温度下形成真实的圆筒。 气缸在冷却时形成为真，气缸和头部用高热流导体夹套，使得气缸和气缸盖具有均匀的工作温度。