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    Thermally insulated piston
    442.
    发明授权
    Thermally insulated piston 失效
    绝热活塞

    公开(公告)号：US4531502A

    公开(公告)日：1985-07-30

    申请号：US495849

    申请日：1983-05-18

    Applicant: Howard Mizuhara

    Inventor： Howard Mizuhara

    IPC: F02B3/06 ,  F02F3/12 ,  F01B31/08 ,  F16J1/00

    CPC classification number: F02F3/12 ,  F02B3/06 ,  F05C2201/0433 ,  F05C2201/0448

    Abstract: A thermally insulated piston for an internal combustion engine comprises a cast piston with a top wall having an annular recess, a cast iron annular cap in the recess, and a low thermal conductivity honeycomb structure between the cap and the bottom of the recess. The honeycomb structure has a plurality of cells, each formed of (stainless steel) foil filled with insulating material and brazed to the cap and to the bottom of the recess. This structure is a thermal barrier to the flow of heat from the cap to the main body of the piston, has high strength in compression and facilitates the adibatic expansion of gasses in the cylinder of the engine, particularly a diesel engine.

    Abstract translation: 用于内燃机的绝热活塞包括具有顶壁的铸造活塞，其具有环形凹部，凹部中的铸铁环形盖，以及在盖和凹部的底部之间的低热导率蜂窝结构。 蜂窝结构体具有多个单元，每个单元由填充有绝缘材料的（不锈钢）箔形成并钎焊到盖和凹部的底部。 这种结构是从帽到活塞主体的热量流动的热障碍物，具有高的压缩强度，并且有利于发动机气缸，特别是柴油发动机中气体的自动膨胀。

    Method of assembling an improved heat insulated piston
    443.
    发明授权
    Method of assembling an improved heat insulated piston 失效
    组装改进的隔热活塞的方法

    公开(公告)号：US4531269A

    公开(公告)日：1985-07-30

    申请号：US593460

    申请日：1984-03-26

    Applicant: Gary A. LaBouff

    Inventor： Gary A. LaBouff

    IPC: F02F3/00 ,  F02F7/00 ,  F16J1/22 ,  B23P15/10

    CPC classification number: F02F3/00 ,  F02F7/0087 ,  F16J1/22 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10S29/035 ,  Y10T29/49252 ,  Y10T29/4984 ,  Y10T29/49865

    Abstract: An improved heat insulated piston assembly for an internal combustion engine and a method of assembly. The improved piston assembly includes a piston constructed of a sleeve having an interference fit about a heat insulated core. The core has a first end positioned flush with an end of the sleeve and has a second end located within the sleeve with a concave configured cavity formed therein. Mating in the concave configured cavity of the core is a connecting rod having a spherical ball shaped end. The spherical ball shaped end is securely held in the cavity by a retaining ring which attaches to the piston sleeve. The retaining ring allows for limited movement of the spherical ball shaped end of the connecting rod in the cavity while providing a means for returning the piston to its bottom position during the intake stroke.

    Abstract translation: 一种用于内燃机的改进的绝热活塞组件和组装方法。 改进的活塞组件包括由套筒构成的活塞，该套筒具有围绕隔热芯体的过盈配合。 芯具有与套筒的端部平齐的第一端，并且具有位于套筒内的第二端，其中形成有凹形构造的空腔。 在芯的凹形构造的空腔中的配合是具有球形球端的连接杆。 球形的球形端通过附接到活塞套筒的保持环牢固地保持在空腔中。 保持环允许连接杆的球形球形端部在空腔中的有限运动，同时提供用于在进气冲程期间将活塞返回到其底部位置的装置。

    Piston of combustion engine
    444.
    发明授权
    Piston of combustion engine 失效
    内燃机活塞

    公开(公告)号：US4517930A

    公开(公告)日：1985-05-21

    申请号：US425340

    申请日：1982-09-28

    Applicant: Hideaki Nakano ,  Tadahiro Ozu ,  Eiichi Shirai

    Inventor： Hideaki Nakano ,  Tadahiro Ozu ,  Eiichi Shirai

    IPC: F01P3/10 ,  F02B3/06 ,  F02F3/00 ,  F02F3/22

    CPC classification number: F02F3/0023 ,  F01P3/10 ,  F02F3/22 ,  F02B3/06 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

    Abstract: A piston is provided for an internal combustion engine, having a crown portion comprising an upper part and a lower or ring-bearing part which two parts are of different metals welded together. The two metals are chosen to have the same coefficient of expansion but the metal of the upper part of the piston crown is less heat-conductive while that of the ring-bearing part is highly heat-conductive. The piston has a cooling chamber formed in it, part of which chamber is adjacent the upper part of the piston crown while another part of the cooling chamber is adjacent the ring-bearing part.

    Abstract translation: 为内燃机提供活塞，其具有冠部，所述冠部包括上部和下部或环形承载部分，所述两部分具有不同的金属焊接在一起。 选择这两种金属具有相同的膨胀系数，但是活塞顶部的上部的金属的导热性较差，而承载部件的金属具有高导热性。 活塞具有形成在其中的冷却室，其中的一部分腔邻近活塞顶部的上部，而另一部分冷却室邻近环承载部。

    Process of shaping the rim of a combustion chamber recess of a light-alloy piston
    448.
    发明授权
    Process of shaping the rim of a combustion chamber recess of a light-alloy piston 失效
    使轻合金活塞的燃烧室凹部的边缘成形的工艺

    公开(公告)号：US4345138A

    公开(公告)日：1982-08-17

    申请号：US210116

    申请日：1980-11-24

    Applicant: Wolf U. Zammert

    Inventor： Wolf U. Zammert

    IPC: F02F3/08 ,  B23K15/00 ,  B23P15/10 ,  C22F3/00 ,  F02B3/06 ,  F02B23/06 ,  F02F3/14 ,  B23K27/00

    CPC classification number: F02B23/0675 ,  B23P15/10 ,  C22F3/00 ,  F02B2275/14 ,  F02B3/06 ,  F05C2201/0448 ,  Y02T10/125 ,  Y10T29/49249

    Abstract: An improved process for shaping the edge of a combustion chamber recess in the piston head of a finish-machined light-alloy piston is disclosed wherein the piston is moved past the oscillating charged carrier beam at an angle of inclination of 40.degree. to 50.degree., the charged carrier beam is caused to act on that portion of the rim of the combustion chamber recess which is to be refined by being remelted and the charged carrier rays are moved over said portion only once. The process presents the formation of cracks at the edge of the chamber.

    Abstract translation: 公开了一种用于成形精加工轻合金活塞的活塞头中的燃烧室凹部的边缘成形的改进方法，其中活塞以40°至50°的倾角移动经过摆动的带电承载梁， 使带电的载体梁通过重新熔化而作用于待精炼的燃烧室凹部的边缘部分，并且带电的载流子仅在所述部分上移动一次。 该过程在室的边缘形成裂纹。

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