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    Piston head with bores
    42.
    发明授权
    Piston head with bores 失效
    活塞头与宝石

    公开(公告)号：US5086736A

    公开(公告)日：1992-02-11

    申请号：US694414

    申请日：1991-05-01

    Applicant: Lothar Wiemann

    Inventor： Lothar Wiemann

    IPC: F02F3/00 ,  F02F3/22

    CPC classification number: F02F3/225 ,  F02F3/0069 ,  F02F3/22 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: A piston for an internal combustion engine with a separate head and skirt which are joined by a piston pin. The ring belt extends downward from the head and terminates above the pin. The space between the lower edge of the ring belt and a section of the head defines a cooling oil ring space. The head is provided with bores which extend from the cooling oil ring space upward toward the top of the head.

    Abstract translation: 一种用于内燃机的活塞，其具有由活塞销连接的单独头部和裙部。 环带从头部向下延伸并终止在销的上方。 环带的下边缘和头部的一部分之间的空间限定了冷却油环空间。 头部设置有从冷却油环空间向上朝向头部的顶部延伸的孔。

    Single, light-weight and low friction light-metal piston for internal-combustion engines
    45.
    发明授权
    Single, light-weight and low friction light-metal piston for internal-combustion engines 失效
    用于内燃机的单，轻重和低摩擦轻金属活塞

    公开(公告)号：US5048398A

    公开(公告)日：1991-09-17

    申请号：US368298

    申请日：1989-06-07

    Applicant: Horst Pfeiffenberger ,  Emil Ripberger ,  Jurgen Ellermann

    Inventor： Horst Pfeiffenberger ,  Emil Ripberger ,  Jurgen Ellermann

    IPC: F02F3/00 ,  F02F3/02 ,  F02F3/08 ,  F16J1/00

    CPC classification number: F02F3/08 ,  F02F3/02 ,  F02F2200/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

    Abstract: The technical problem is to reduce the operating noise of such a piston. It is solved by means of a piston having the following dimensions: a) A=(0.45-0.65) D; b) H=(0.25-0.4) D; c) A=(0.3-0.4) D; d) A greater than or equal to B; e) T=(0.45-0.8) D; f) the piston ribs between the annular grooves (2, 3, 4) and the rod region with a very narrow operating clearance have, in the case of a hot operating piston, approximately the same clearance in relation to the cylinder operating path. An additional improvement consists in inserting an annular jacket in the piston head in the radial region behind the annular grooves, said jacket consisting of a material having a thermal expension factor less than that of the basic piston material. In a hot operating internal combustion engine, the piston has, in the region of the ribs, a clearance which, in the direction pressure/counter-pressure reaches approximately only 3-5 times the clearance in the very narrow clearance region of the piston rod.

    Abstract translation: PCT No.PCT / DE87 / 00593 Sec。 371日期1989年6月7日第 102（e）日期1989年6月7日PCT Filted 1987年12月16日PCT公布。 出版物WO88 / 04724 日期：1988年6月30日。技术问题是减少这种活塞的运行噪音。 通过具有以下尺寸的活塞来解决：a）A =（0.45-0.65）D; b）H =（0.25-0.4）D; c）A =（0.3-0.4）D; d）大于或等于B; e）T =（0.45-0.8）D; f）在热操作活塞的情况下，在环形槽（2,3,4）和具有非常窄的工作间隙的杆区域之间的活塞肋相对于气缸操作路径具有大致相同的间隙。 另外的改进在于在环形凹槽后面的径向区域中的活塞头中插入环形夹套，所述护套由具有小于基本活塞材料的热膨胀系数的材料构成。 在热操作的内燃机中，活塞在肋的区域中具有间隙，该间隙在活塞杆的非常窄的间隙区域中的压力/反压力达到大约仅3-5倍的间隙 。

    Internal combustion engines and engine components
    47.
    发明授权
    Internal combustion engines and engine components 失效
    内燃机和发动机部件

    公开(公告)号：US4974498A

    公开(公告)日：1990-12-04

    申请号：US488248

    申请日：1990-03-05

    Applicant: Jerome Lemelson

    Inventor： Jerome Lemelson

    IPC: B23D61/18 ,  B24D18/00 ,  B28D1/12 ,  C04B35/80 ,  E21B10/46 ,  F01L3/04 ,  F16C9/00 ,  F16C33/04 ,  F16C33/10 ,  H05K1/03

    CPC classification number: F16C9/00 ,  B23D61/185 ,  B24D18/00 ,  B28D1/12 ,  C04B35/80 ,  E21B10/46 ,  F01L3/04 ,  F16C33/04 ,  F16C33/043 ,  F16C33/12 ,  F16C33/122 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F16C2206/04 ,  H05K1/0373 ,  Y10S428/902 ,  Y10T428/265 ,  Y10T428/2907 ,  Y10T428/292 ,  Y10T428/2933 ,  Y10T428/2991 ,  Y10T428/30

    Abstract: Improvements in internal combustion engines and/or components thereof resulting from applying thin coatings or films of synthetic diamond or diamond-like material thereto and, in certain instances, overcoating such synthetic diamond material with a thin layer of chromium for providing certain protective effects. In one form, the entire piston of an internal combustion engine is coated with a thin layer of synthetic diamond material protecting same against heat and chemical corrosion effects during the operation of the engine. In another form, piston rings or ring components are coated with such synthetic diamond material in thicknesses varying from 0.00001" to 0.001" or more. Retaining cavities formed in the head of the piston which retain the piston rings may also be similarly coated. The piston pin and/or its retaining rings may also contain such synthetic diamond material coating as may the top and side walls of the piston. An overcoating of a hard film of chromium may be applied to one or more of the engine components against the synthetic diamond material to protect same against particle erosion and abrasion. Other engine components so protected may include the engine crank shaft or those portions thereof subjected to wear when the surfaces of the bearings of the piston rods engage same and the bearings in which the crank shaft rotates.

    Abstract translation: 通过将薄的涂层或合成的金刚石或类金刚石材料的膜施加到其上，以及在某些情况下，用这种合成的金刚石材料用薄层的铬覆盖以提供某些保护效果，从而改善了内燃机和/或其部件。 在一种形式中，内燃机的整个活塞涂覆有合成金刚石材料的薄层，以保护其在发动机操作期间不受热和化学腐蚀影响。 在另一种形式中，活塞环或环组件涂覆有从0.00001“到0.001”或更大的厚度的合成金刚石材料。 形成在保持活塞环的活塞头部中的保持空腔也可以类似地被涂覆。 活塞销和/或其保持环也可以包含活塞的顶壁和侧壁上的这种合成金刚石材料涂层。 铬的硬膜的外涂层可以针对合成金刚石材料施加到一个或多个发动机部件上，以保护其免受颗粒侵蚀和磨损。 如此保护的其它发动机部件可以包括发动机曲柄轴或者当活塞杆的轴承的表面与曲柄轴旋转的轴承磨损时的那些部分。

    Split ceramic piston ring arrangement with nested biasing ring
    49.
    发明授权
    Split ceramic piston ring arrangement with nested biasing ring 失效
    分体陶瓷活塞环布置，嵌套偏置环

    公开(公告)号：US4966068A

    公开(公告)日：1990-10-30

    申请号：US330973

    申请日：1989-03-28

    Applicant: Reinhold Ficht ,  Lutz Hamann

    Inventor： Reinhold Ficht ,  Lutz Hamann

    IPC: F02F3/00 ,  F02F5/00 ,  F02F7/00 ,  F16J9/06 ,  F16J9/26 ,  F16J9/28

    CPC classification number: F16J9/063 ,  F02F7/0087 ,  F16J9/06 ,  F16J9/26 ,  F05C2201/0448

    Abstract: A piston-ring arrangement for use in an internal combustion engine including a cylinder with a piston axially displaceable within the cylinder and at least one piston ring guided in the cylinder. The cylinder, piston and piston-ring are made of a ceramic material. The piston ring is formed of two circumferentially extending parts and is mounted in a groove in the circumferentially surface of the piston. The groove has a depth greater than the corresponding radial depth of the piston ring so that a spring element can be positioned between the base of the groove and the piston ring for biasing the piston ring radially outwardly. The spring element can be annular member with a corrugated shape or a multi-part ceramic member shaped to provide a biasing action.

    Abstract translation: 一种用于内燃机的活塞环装置，包括具有在气缸内可轴向移动的活塞的气缸和在气缸中引导的至少一个活塞环。 气缸，活塞和活塞环由陶瓷材料制成。 活塞环由两个周向延伸的部分形成，并且安装在活塞周向表面的槽中。 凹槽的深度大于活塞环的对应的径向深度，使得弹簧元件可以定位在凹槽的基部和活塞环之间，用于径向向外偏压活塞环。 弹簧元件可以是具有波纹形状的环形构件或成形为提供偏置动作的多部件陶瓷构件。

    Pistons with bearing members
    50.
    发明授权
    Pistons with bearing members 失效
    活塞与轴承成员

    公开(公告)号：US4928578A

    公开(公告)日：1990-05-29

    申请号：US123786

    申请日：1987-11-23

    Applicant: Michael L. P. Rhodes

    Inventor： Michael L. P. Rhodes

    IPC: F16J1/14

    CPC classification number: F16J1/14 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T403/32909 ,  Y10T403/32959 ,  Y10T74/2162

    Abstract: Pistons are described comprising a crown portion and a skirt portion, the crown portion having depending from the underside thereof a boss, the boss having secured thereto at least two bearing members in fixed relationship to the piston body and which bearing members co-operate with an associated connecting rod. The bearing members may be located in rebates in the boss such that piston firing loads are born substantially in compression. The bearing members are in one embodiment secured to the boss by a bolt and nut. The bearing members may comprise ferrous, copper-based or aluminium based alloys depending upon the application environment.

    Abstract translation: 描述了活塞，其包括冠部和裙部，冠部从其下侧具有凸起，凸台已经固定到至少两个与活塞体固定的轴承构件，并且该轴承构件与 相关连杆。 轴承构件可以位于凸台中的凹槽中，使得活塞燃烧负载基本上以压缩方式诞生。 在一个实施例中，轴承构件通过螺栓和螺母固定到凸台。 根据应用环境，轴承部件可以包含铁基，铜基或铝基合金。

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