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    Carbon-carbon piston architectures
    41.
    发明授权
    Carbon-carbon piston architectures 失效
    碳碳活塞结构

    公开(公告)号：US5900193A

    公开(公告)日：1999-05-04

    申请号：US805195

    申请日：1997-02-27

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

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

    IPC: C04B35/83 ,  F02F3/00 ,  F02F7/00 ,  C01B31/00

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

    Abstract: An improved structure for carbon-carbon composite piston architectures 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 be 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.

    Abstract translation: 碳 - 碳复合活塞结构的改进结构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。 致密化也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。

    Pistons with bearing lands
    42.
    发明授权
    Pistons with bearing lands 失效
    活塞与轴承土地

    公开(公告)号：US4876947A

    公开(公告)日：1989-10-31

    申请号：US27876

    申请日：1987-03-19

    Applicant: Michael L. P. Rhodes

    Inventor： Michael L. P. Rhodes

    IPC: F02F3/00

    CPC classification number: F02F3/0069 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448

    Abstract: Pistons are discribed comprising a crown portion which also includes a piston ring belt and gudgeon-pin bosses and which crown portion comprises a ferrous allow and a seperate articulated skirt portion comprising a casting of aluminum alloy, steel or cast iron which also includes gudgeon-pin bores, the crown portion and the skirt portion having a common gudgeon-pin about which the articulated skirt portion is freely able to move relative to the crown portion.

    Abstract translation: 排列的活塞包括冠部，其还包括活塞环带和舵头销凸起，并且该冠部包括铁质允许和单独的铰接裙部，其包括铝合金，钢或铸铁铸件，其还包括舵针 孔，冠部和裙部具有共同的榫扣销，铰接的裙部部分围绕其相对于冠部自由地移动。

    Shielded insulation for combustion chamber
    43.
    发明授权
    Shielded insulation for combustion chamber 失效
    燃烧室屏蔽绝缘

    公开(公告)号：US4774926A

    公开(公告)日：1988-10-04

    申请号：US14905

    申请日：1987-02-13

    Applicant: Ellsworth C. Adams

    Inventor： Ellsworth C. Adams

    IPC: F02B3/06 ,  F02B77/02 ,  F02F3/12 ,  F02F7/00 ,  F02B75/08

    CPC classification number: F02F7/0085 ,  F02B77/02 ,  F02F3/12 ,  F02B3/06 ,  F05C2201/0433 ,  F05C2201/0448

    Abstract: In an uncooled engine, it is propose to form insulator coatings on the combustion chamber surfaces, and to mechanically protect such coatings against erosion or cracking by means of outer protective layers applied over the insulator coatings. The insulator coatings can be zirconium oxide applied to a thickness of approximately 0.15 inch. The protective layers can be formed of various materials resistant to high temperatures in the vicinity of 2000.degree. F., e.g. silicon nitride, steel or cast iron.

    Abstract translation: 在未冷却的发动机中，建议在燃烧室表面上形成绝缘体涂层，并且通过施加在绝缘体涂层上的外部保护层来机械地保护这些涂层免受侵蚀或破裂。 绝缘体涂层可以是施加到约0.15英寸厚度的氧化锆。 保护层可以由2000°F附近耐高温的各种材料形成。 氮化硅，钢或铸铁。

    Method of making a piston bottom
    44.
    发明授权
    Method of making a piston bottom 失效
    制作活塞底部的方法

    公开(公告)号：US4532686A

    公开(公告)日：1985-08-06

    申请号：US503317

    申请日：1983-06-10

    Applicant: Rutger Berchem

    Inventor： Rutger Berchem

    IPC: B21K1/18 ,  B23P15/10 ,  F02F3/00

    CPC classification number: F02F3/0015 ,  B21K1/18 ,  B21K1/185 ,  B23P15/10 ,  F02F2200/04 ,  F05C2201/0433 ,  F05C2201/0448 ,  Y10S29/026 ,  Y10T29/49249 ,  Y10T29/49995 ,  Y10T29/49996

    Abstract: A piston bottom for large capacity internal-combustion engines is made by forging a saucer-shaped blank from refractory-forging steel and then in a second forging step transforming the saucer-shaped blank into a cup configuration with a planar rim of the blank being transformed into a cylindrical shoulder and an annular bulge of the blank being transformed into an annular boss for connecting the piston bottom of the cylindrical body of the piston. The blank has a convexity projecting on one side of the blank opposite that formed with the bulge.

    Abstract translation: 用于大容量内燃机的活塞底座是通过从耐火锻造钢锻造碟形坯料，然后在第二锻造步骤中将碟形坯料转化成杯形结构制成的，其中坯料的平面边缘被转变 变成圆柱形的肩部并且坯件的环形凸起被变形成环形凸台，用于连接活塞的圆柱体的活塞底部。 坯料在坯料的一侧上突出凸出，与凸起形成的相反。

    Inner rotor of internal gear pump having convex small circular arc parts
    50.
    发明授权
    Inner rotor of internal gear pump having convex small circular arc parts 失效
    内齿轮泵的内转子具有凸小的圆弧部分

    公开(公告)号：US07572117B2

    公开(公告)日：2009-08-11

    申请号：US11721228

    申请日：2005-01-12

    Applicant: Katsuaki Hosono

    Inventor： Katsuaki Hosono

    IPC: F04C18/00 ,  F04C2/00

    CPC classification number: F04C2/10 ,  F04C2/084 ,  F04C15/0073 ,  F04C2230/22 ,  F05C2201/0433 ,  F05C2201/0475 ,  F05C2251/00 ,  Y10T403/7035 ,  Y10T403/7047 ,  Y10T403/74

    Abstract: A crankshaft and an mounting hole have two main circular arc parts on the same circle; and two connecting parts for connecting the adjacent main circular arc parts, and have a cross-sectional shape in which the connecting parts facing each other are substantially parallel. The connecting parts of the mounting hole are formed in the shape of a large circular arc which projects inward. The torque of the crankshaft is transmitted to the mounting hole in a state where the connecting parts of the crankshaft and the connecting parts of the mounting hole which are formed in the shape of a large circular arc come into line contact with each other; therefore, the value of any local stress generated in the mounting hole can be reduced.

    Abstract translation: 曲轴和安装孔在同一个圆上有两个主圆弧部分; 以及用于连接相邻的主圆弧部分的两个连接部分，并且具有其中彼此面对的连接部分基本上平行的横截面形状。 安装孔的连接部形成为向内突出的大圆弧的形状。 曲轴的转矩在形成为大圆弧形状的曲轴的连接部和安装孔的连接部彼此线接触的状态下传递到安装孔; 因此，可以减少在安装孔中产生的任何局部应力的值。

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