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    Piston with central combustion chamber for injection-type internal combustion engines
    821.
    发明授权
    Piston with central combustion chamber for injection-type internal combustion engines 失效
    用于注射式内燃机的中央燃烧室的活塞

    公开(公告)号：US3906924A

    公开(公告)日：1975-09-23

    申请号：US48177574

    申请日：1974-06-21

    Applicant: ELSBETT L

    Inventor： ELSBETT LUDWIG

    IPC: F02B3/06 ,  F02B23/06 ,  F02F3/02 ,  F02F3/14 ,  F02F3/26

    CPC classification number: F02B23/0603 ,  F02B3/06 ,  F02B23/0654 ,  F02B23/066 ,  F02B23/0675 ,  F02B2275/14 ,  F02B2275/16 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/123 ,  Y02T10/125

    Abstract: A piston with a central combustion chamber for injectiontype internal combustion engines, in which the combustion chamber is provided in the piston head and is equipped with heat accumulating means for retaining the heat resulting from the combustion of the fuel in the combustion chamber while the mantle surfaces of the piston which slidably engage the cylinder wall are provided with guiding and sliding means. Within the range of the combustion chamber opening there is provided an annular glowing part having a rim tapering toward the center or axis of the combustion chamber while between the annular glowing part and the piston head which forms an annular support there is provided the heat accumulating means, e.g. in the form of a chamber. These heat accumulating means together with the glowing part have a ring width substantially equalling the injection depth of the fuel jet when the engine is idling. The annular support together with the mantle of the fuel chamber is detachably connected to at least one guiding or sliding body, sliding block, or sliding ring by means of a piston foot and a crosshead.

    Abstract translation: 一种具有用于注射型内燃机的中央燃烧室的活塞，其中燃烧室设置在活塞头中，并且配备有蓄热装置，用于将燃料燃烧产生的热量保持在燃烧室中，同时地幔表面 可滑动地接合气缸壁的活塞设置有引导和滑动装置。 在燃烧室开口的范围内，设置有环形发光部分，其具有朝向燃烧室的中心或轴线逐渐变细的边缘，同时环形发光部分和形成环形支撑件的活塞头之间设置有蓄热装置 ，例如 以房间的形式。 当发动机怠速时，这些蓄热装置与发光部分一起具有基本上等于燃料射流的喷射深度的环宽度。 环形支撑件与燃料室的外壳一起通过活塞脚和十字头可拆卸地连接到至少一个导向或滑动体，滑动块或滑动环。

    Die cast v-type two-cycle engine
    823.
    发明授权
    Die cast v-type two-cycle engine 失效
    DIY CAST V型双周期发动机

    公开(公告)号：US3851631A

    公开(公告)日：1974-12-03

    申请号：US34192373

    申请日：1973-03-16

    Applicant: KIEKHAEFER AEROMARINE MOTORS

    Inventor： KIEKHAEFER E

    IPC: F01B1/04 ,  F02B25/28 ,  F02B61/04 ,  F02B75/02 ,  F02B75/18 ,  F02B75/22 ,  F02F1/00 ,  F02F1/22 ,  F02F7/00 ,  F02F3/00

    CPC classification number: F02F7/0058 ,  F02B25/28 ,  F02B61/045 ,  F02B75/22 ,  F02B2075/025 ,  F02B2075/1808 ,  F02B2275/30 ,  F02F1/002 ,  F02F7/0012 ,  F02F2200/06 ,  F05C2201/0448

    Abstract: A compact V-type two-cycle engine has one-half of the crankcase cast integrally with the cylinder or cylinders on one side of the V and joined with a corresponding cast unit in a parting plane bisecting the V. The cylinder heads are cast integral with the corresponding cylinders, and each pair of cylinders in the V formation has its pistons connected to the same crank pin of the crank-shaft. A liner sleeve in the crankcase cooperates with a circular disc centrally of the crank pin to separate the compression chambers for the two cylinders. The engine is disposed with the V inverted and provision is made to keep the crankcase and pistons free of any unburned fuel charge accumulation.

    Abstract translation: 紧凑的V型双冲程发动机具有与V的一侧上的气缸或气缸一体形成的曲轴箱的一半，并且在与V分开的分离平面中与相应的铸造单元连接。气缸盖是铸件积分 与相应的气缸相连，V形中的每对气缸的活塞都连接到曲柄轴的曲柄销上。 曲轴箱中的衬套与曲柄销中心的圆盘配合，以分离两个气缸的压缩室。 发动机配置为V倒置，并提供保持曲轴箱和活塞没有任何未燃烧的燃料电荷累积。

    Piston and piston rings unit for an internal combustion engine
    824.
    发明授权
    Piston and piston rings unit for an internal combustion engine 失效
    内燃机活塞和活塞环单元

    公开(公告)号：US3831952A

    公开(公告)日：1974-08-27

    申请号：US14102371

    申请日：1971-05-06

    Applicant: SEALFIRE

    Inventor： GEFFROY R

    IPC: F16J9/00 ,  F16J9/06 ,  F16J9/20 ,  F01B31/10

    CPC classification number: F16J9/066 ,  F05C2201/0448 ,  F05C2225/02 ,  F05C2225/04 ,  F16J9/00 ,  F16J9/06 ,  F16J9/067 ,  F16J9/20

    Abstract: A piston and compression and oil control piston rings unit for internal combustion engines, said unit being placed in a cylinder delimiting a combustion chamber with its head and said piston which comprises a body formed with a head and a skirt, grooves receiving said rings, oil return orifices and a central cavity, each piston ring and its groove comprising a pair of upper contiguous faces and a pair of lower contiguous faces one of said faces of each piston ring being a face assuming the main work of the piston ring, in which: AN EFFICIENT SEALING MEANS IS PLACED BETWEEN THE FACE OF EACH PISTON RING ASSUMING THE MAIN WORK OF THE PISTON RING AND THE CONTIGUOUS FACE OF ITS GROOVE, ON AT LEAST A CIRCLE ADJOINING THE INNER LIMIT OF THE FACE OF THE PISTON RING, AND AN ACCESS MEANS IS PLACED ON AT LEAST ONE IMPORTANT PART OF THE AREA BETWEEN THE UPPER CONTIGUOUS FACES OF EACH PISTON RING AND ITS GROOVE, FOR THE PRESSURE EXISTING ABOVE THE PISTON RING.

    Abstract translation: 用于内燃机的活塞和压缩和油控活塞环单元，所述单元被放置在限定燃烧室的气缸中，其头部和所述活塞包括形成有头部和裙部的主体，容纳所述环的凹槽，油 每个活塞环和其凹槽包括一对上连续面和一对下邻接面，每个活塞环的所述面之一是假定活塞环的主要工作的面，其中：

    Piston structure
    825.
    发明授权
    Piston structure 失效
    活塞结构

    公开(公告)号：US3742823A

    公开(公告)日：1973-07-03

    申请号：US3742823D

    申请日：1971-09-27

    Applicant: FIEDLER M

    Inventor： FIEDLER M

    IPC: F02F3/10 ,  F02F3/00 ,  F16J1/00 ,  F16J9/00 ,  F16J1/02 ,  F16J9/20

    CPC classification number: F02F3/00 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  F16J1/001 ,  F16J9/00

    Abstract: The piston structure comprises a body having a substantial number of circumferential grooves each receiving a piston ring, the radially outer portions of said rings extending vertically in spaced relation to the piston to comprise, in effect, a substantially continuous cylinder wall-engaging sleeve, thus reducing contact of the piston itself with the cylinder wall, groove engaging portions of the rings spaced from the bottoms of the grooves to receive oil for cushioning the rings and permitting expansion of the piston.

    Abstract translation: 活塞结构包括具有相当数量的周向槽的主体，每个圆周槽都容纳活塞环，所述环的径向外部部分以活塞间隔开的方式垂直地延伸，实质上包括基本上连续的圆筒壁接合套筒 减少活塞本身与气缸壁的接触，与槽的底部间隔开的环的凹槽接合部分接收用于缓冲环并允许活塞膨胀的油。

    Method of reinforcing piston ring grooves
    826.
    发明授权
    Method of reinforcing piston ring grooves 失效
    增强活塞环的方法

    公开(公告)号：US3715790A

    公开(公告)日：1973-02-13

    申请号：US3715790D

    申请日：1971-01-13

    Applicant: TRW INC

    Inventor： REINBERGER W

    IPC: B23K35/00 ,  B23P15/10 ,  F16J9/22

    CPC classification number: F16J9/22 ,  B23K35/002 ,  B23P15/10 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2201/046 ,  Y10T29/49263 ,  Y10T29/49265 ,  Y10T29/49746

    Abstract: Method of making an aluminum alloy piston with a ring groove reinforcement wherein a grooved piston blank is cleaned to remove any oxide films, and a bonding metal is sprayed over the surface of the groove while the blank is at a temperature of from about 330* to 390* F., and thereafter a wear resistant metal is sprayed into the groove while the blank is still at a temperature within the aforementioned range to thereby fill the groove.

    Abstract translation: 制造具有环槽加强件的铝合金活塞的方法，其中清洁沟槽的活塞坯料以除去任何氧化膜，并且将焊接金属喷涂在槽的表面上，同时坯料处于约330℃至 390°F，然后将耐磨金属喷射到槽中，同时坯料仍处于上述范围内的温度，从而填充槽。

    Piston for internal combustion engine with direct fuel injection
    827.
    发明授权
    Piston for internal combustion engine with direct fuel injection 失效
    内燃机直喷燃油活塞

    公开(公告)号：US3628511A

    公开(公告)日：1971-12-21

    申请号：US3628511D

    申请日：1970-01-05

    Applicant: MASCH FABRIK AUGSBURG NURNBERG

    Inventor： FISCHER HANS

    IPC: F02B3/06 ,  F02F3/00 ,  F02F3/14 ,  F02F3/18 ,  F02F3/22 ,  F01P1/04 ,  F01B31/08

    CPC classification number: F02F3/14 ,  F02B3/06 ,  F02B2275/14 ,  F02F3/003 ,  F02F3/18 ,  F02F3/22 ,  F02F2003/0061 ,  F05C2201/0448 ,  Y02T10/123

    Abstract: A piston of the type including a pistonhead having a combustion chamber in its upper face and piston ring receiving grooves about its periphery. The pistonhead is machined with a concentric element on its underside adapted to engage a concentric element on a wrist pin bearing frame on which partial skirts or slipper elements are mounted to distribute the transverse thrust of the piston against the cylinder wall. The combustion chamber is surrounded by a shell element through which the on concentric element extends and to which it is sealed, preferably by welding. The upper portion of the shell extends upwardly spaced from the wall of the combustion chamber to provide a cooling space to receive a meltable first coolant, and a second annular shell element, or border member, may be mounted between the inner wall of the ring supporting periphery of the pistonhead below the piston ring grooves and the outer wall of the shell element, to form a chamber for a second coolant which may be the engine lubricant.

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