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    Carbon-carbon cylinder block
    1.
    发明授权
    Carbon-carbon cylinder block 失效
    碳碳气缸体

    公开(公告)号：US5769046A

    公开(公告)日：1998-06-23

    申请号：US845652

    申请日：1997-04-25

    申请人： Philip O. Ransone

    发明人： Philip O. Ransone

    IPC分类号： F02B75/18 ,  F02F7/00 ,  F02F75/06

    CPC分类号： F02F7/0085 ,  F02B2075/1816 ,  F02F2007/0063 ,  F05C2203/0808 ,  F05C2253/16 ,  Y10T428/30

    摘要： A lightweight cylinder block composed of carbon-carbon is disclosed. The use of carbon-carbon over conventional materials, such as cast iron or aluminum, reduces the weight of the cylinder block and improves thermal efficiency of the internal combustion reciprocating engine. Due to the negligible coefficient of thermal expansion and unique strength at elevated temperatures of carbon-carbon, the piston-to-cylinder wall clearance can be small, especially when the carbon-carbon cylinder block is used in conjunction with a carbon-carbon piston. Use of the carbon-carbon cylinder block has the effect of reducing the weight of other reciprocating engine components allowing the piston to run at higher speeds and improving specific engine performance.

    摘要翻译： 公开了一种由碳 - 碳组成的轻质气缸体。 碳 - 碳比常规材料（如铸铁或铝）的使用减少了气缸体的重量，并提高了内燃往复式发动机的热效率。 由于在碳碳的高温下的热膨胀系数和独特的强度可忽略不计，所以活塞与缸体之间的间隙可能很小，特别是当碳 - 碳气缸体与碳 - 碳活塞一起使用时。 使用碳 - 碳气缸体具有减小其他往复式发动机部件的重量的效果，允许活塞以更高的速度运行并改善特定的发动机性能。

    Carbon-carbon piston architectures
    2.
    发明授权
    Carbon-carbon piston architectures 失效
    碳碳活塞结构

    公开(公告)号：US6116202A

    公开(公告)日：2000-09-12

    申请号：US291717

    申请日：1999-04-14

    申请人： H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

    发明人： H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

    IPC分类号： C04B35/83 ,  F02F3/00 ,  F02F7/00 ,  F02F75/06

    CPC分类号： F02F3/00 ,  C04B35/83 ,  F02F7/0085 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448 ,  F05C2203/0808 ,  F05C2203/0882 ,  F05C2251/042 ,  F05C2253/16

    摘要： An improved structure for carbon--carbon composite piston architectures is disclosed. The improvement consists of replacing the knitted fiber, three-dimensional piston preform architecture described in U.S. Pat. No. 4,909,133 (Taylor et al.) with a two-dimensional lay-up or molding of carbon fiber fabric or tape. Initially, the carbon fabric or tape layers are prepregged with carbonaceous organic resins and/or pitches and are laid up or molded about a mandrel, to form a carbon-fiber reinforced organic-matrix composite part shaped like a "U" channel, a "T"-bar, or a combination of the two. The molded carbon-fiber reinforced organic-matrix composite part is then pyrolized in an inert atmosphere, to convert the organic matrix materials to carbon. At this point, cylindrical piston blanks are cored from the "U"-channel, "T"-bar, or combination part. These blanks are then densified by reimpregnation with resins or pitches which are subsequently carbonized. Densification is also accomplished by direct infiltration with carbon by vapor deposition processes. Once the desired density has been achieved, the piston billets are machined to final piston dimensions; coated with oxidation sealants; and/or coated with a catalyst. When compared to conventional steel or aluminum alloy pistons, the use of carbon--carbon composite pistons reduces the overall weight of the engine; allows for operation at higher temperatures without a loss of strength; allows for quieter operation; reduces the heat loss; and reduces the level of hydrocarbon emissions.

    摘要翻译： 公开了一种用于碳 - 碳复合活塞结构的改进结构。 该改进包括更换美国专利中描述的针织纤维，三维活塞预制件结构。 No.4,909,133（Taylor等人），其具有碳纤维织物或胶带的二维叠层或成型。 最初，碳布或胶带层用碳质有机树脂和/或沥青预先预浸，并围绕心轴进行铺设或模塑，以形成形状如“U”通道的碳纤维增强的有机 - 基体复合材料部分，“ T“-bar或两者的组合。 然后将模制的碳纤维增强有机基复合材料部分在惰性气氛中进行热解，将有机基质材料转化为碳。 此时，圆柱形活塞坯料从“U”形通道，“T”型杆或组合部分是核心的。 然后通过用随后碳化的树脂或沥青再次浸渍来使这些坯料致密化。 致密化还可以通过气相沉积工艺直接渗透碳来实现。 一旦达到所需的密度，就将活塞坯料加工成最终的活塞尺寸; 涂有氧化密封剂; 和/或涂覆有催化剂。 与传统的钢或铝合金活塞相比，碳 - 碳复合活塞的使用降低了发动机的总体重量。 允许在较高温度下操作而不失去强度; 允许更安静的操作; 减少热损失; 并降低碳氢化合物排放的水平。

    Piston for internal-combustion engine and method for manufacture thereof
    5.
    发明授权
    Piston for internal-combustion engine and method for manufacture thereof 失效
    用于内燃机的活塞及其制造方法

    公开(公告)号：US6082319A

    公开(公告)日：2000-07-04

    申请号：US101202

    申请日：1998-08-05

    申请人： Yoshihiro Yamada

    发明人： Yoshihiro Yamada

    IPC分类号： F02F3/00 ,  F16J1/01 ,  F16J9/00 ,  F02F75/06

    CPC分类号： F16J9/00 ,  F05C2201/021

    摘要： A piston 1 made of an aluminum alloy was cast in a manner to enclose a ringlike member 6 of a three-layer structure having aluminum alloy materials 8 disposed on both sides of a copper alloy material 7, at a piston's peripheral portion 2 forming thereon piston ring grooves 3 of the piston 1. The ringlike member 6 and the piston 1 are monolithically bonded together by a local remelting of the aluminum alloy material 8 of the ringlike member 6 and the piston 1 at a bonded portion thereof. Then, a piston ring groove 3 was formed on the copper alloy material 7 of the ringlike member 6. With this, it is possible to obtain an internal-combustion engine's piston that does not have adhesion of a hardened layer portion forming thereon a piston ring, to the piston ring, and does not have cracks on the hardened layer.

    摘要翻译： PCT No.PCT / JP97 / 04002 Sec。 371日期：1998年8月5日 102（e）日期1998年8月5日PCT 1997年11月4日PCT公布。 公开号WO98 / 27328 日期：1998年6月25日由铝合金制成的活塞1以包围设置在铜合金材料7的两侧的铝合金材料8的三层结构的环状构件6的周围 在其上形成活塞1的活塞环槽3的部分2，环状构件6和活塞1通过环状构件6的铝合金材料8和活塞1的接合部分的局部重熔而整体结合在一起。 然后，在环状构件6的铜合金材料7上形成有活塞环槽3。由此，能够获得不具有在其上形成有活塞环的硬化层部分的粘附的内燃机的活塞 ，到活塞环，并且在硬化层上没有裂纹。