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    PISTON FOR AN INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    PISTON FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机活塞

    公开(公告)号：US20150096524A1

    公开(公告)日：2015-04-09

    申请号：US14398786

    申请日：2013-05-03

    Applicant: Ulrich Bischofberger ,  Stefan Gaiselmann

    Inventor： Ulrich Bischofberger ,  Stefan Gaiselmann

    IPC: F02F3/04 ,  F02F3/00

    CPC classification number: F02F3/04 ,  F02B75/08 ,  F02B77/04 ,  F02F3/00 ,  F02F3/0084 ,  F02F3/10 ,  F05C2201/0433 ,  F05C2201/0496

    Abstract: The invention relates to a piston for an internal combustion engine made of an iron-based material, comprising a piston head and a piston skirt, the piston head comprising a piston base, a peripheral top land and a peripheral annular part comprising annular grooves. According to the invention, at least one annular groove comprises at least one insert made of an zinc-based material.

    Abstract translation: 本发明涉及一种由铁基材料制成的内燃机活塞，该内燃机包括活塞头和活塞裙，活塞头包括活塞底座，周边顶部平台和包括环形槽的周边环形部分。 根据本发明，至少一个环形槽包括由锌基材料制成的至少一个插入件。

    Method for manufacturing sliding parts for hermetic compressor
    3.
    发明申请
    Method for manufacturing sliding parts for hermetic compressor 有权
    密封式压缩机用滑动件的制造方法

    公开(公告)号：US20020042991A1

    公开(公告)日：2002-04-18

    申请号：US10005948

    申请日：2001-12-04

    Applicant: LG Electronics Inc.

    Inventor： Jong Hyuk Kim

    IPC: B23P015/00

    CPC classification number: F01C21/08 ,  B23P15/10 ,  F04B39/0005 ,  F04B39/126 ,  F05C2201/0433 ,  F05C2203/08 ,  F05C2253/12 ,  Y10T29/49236 ,  Y10T29/49245 ,  Y10T29/494

    Abstract: A method for manufacturing a sliding part for a hermetic compressor is disclosed. Since the abrasion resistance and corrosion resistance of the sliding part is increased, the energy consumption efficiency is improved and the performance of the compressor can be enhanced. In addition, since the manufacturing process is shortened, the production cost can be reduced and the manufacturing time can be reduced. Moreover, since the thickness change of the sliding part is minimized, the defective rate of the part size can be reduced and its quality can be improved.

    Abstract translation: 公开了一种用于制造封闭式压缩机的滑动部件的方法。 由于滑动部件的耐磨耗性和耐腐蚀性提高，因此提高了能量消耗效率，能够提高压缩机的性能。 另外，由于缩短制造工序，所以能够降低制造成本，能够缩短制造时间。 此外，由于滑动部件的厚度变化最小化，所以可以减小部件尺寸的缺陷率并提高其质量。

    High temperature-resistant material for articulated pistons
    4.
    发明授权
    High temperature-resistant material for articulated pistons 失效
    用于铰接活塞的耐高温材料

    公开(公告)号：US06244161B1

    公开(公告)日：2001-06-12

    申请号：US09414269

    申请日：1999-10-07

    Applicant: Martin R. Myers ,  Carmo Ribeiro

    Inventor： Martin R. Myers ,  Carmo Ribeiro

    IPC: F16J104

    CPC classification number: F02F3/003 ,  B23K20/12 ,  C22C38/12 ,  C22C38/18 ,  C22C38/44 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448 ,  F05C2251/042

    Abstract: This invention relates to a high temperature-resistant piston head. The piston head includes a first portion formed of a first material of heat-resistant steel alloy and the second portion is formed of a second a material of steel alloy that may be the same or may or different from the first material. The first and second portions are joined by a friction weld to form the assembled piston head. The heat-resistant steel alloy includes about 0.1 to about 0.5 wt % carbon, up to about 0.6 wt % manganese, about 4.0 to about 6.0 wt % chromium, about 0.45 to about 0.65 wt % molybdenum, up to about 0.5 wt % nickel and the balance iron and incidental impurities. In one form the second material includes about 0.30 to about 0.55 wt % carbon, about 0.4 to about 1.10 wt % manganese, about 0.40 to about 1.25 wt % chromium, about 0.15 to about 0.45 wt % molybdenum, up to about 0.4 wt % silicon, up to about 2 wt % Ni and greater than about 90 wt % iron.

    Abstract translation: 本发明涉及耐高温活塞头。 活塞头包括由耐热钢合金的第一材料形成的第一部分，第二部分由第二材料形成，该材料可以与第一材料相同或可以或不同。 第一和第二部分通过摩擦焊接连接以形成组装的活塞头。 耐热钢合金包括约0.1至约0.5重量％的碳，至多约0.6重量％的锰，约4.0至约6.0重量％的铬，约0.45至约0.65重量％的钼，至多约0.5重量％的镍，以及 余铁和附带杂质。 在一种形式中，第二种材料包括约0.30-约0.55wt％的碳，约0.4-约1.10wt％的锰，约0.40-约1.25wt％的铬，约0.15-约0.45wt％的钼，至多约0.4wt％的硅 ，至多约2重量％的Ni和大于约90重量％的铁。

    Hardfacing for progressing cavity pump rotors
    5.
    发明授权
    Hardfacing for progressing cavity pump rotors 失效
    用于进行腔泵转子的表面硬化

    公开(公告)号：US5498142A

    公开(公告)日：1996-03-12

    申请号：US454589

    申请日：1995-05-30

    Applicant: Robert A. R. Mills

    Inventor： Robert A. R. Mills

    IPC: F04C2/107 ,  F01C1/10 ,  F01C21/00

    CPC classification number: F04C2/1075 ,  F04C2230/00 ,  F04C2230/91 ,  F05C2201/0406 ,  F05C2201/0409 ,  F05C2201/0433 ,  F05C2203/0813 ,  F05C2203/0821 ,  F05C2203/0826 ,  Y10T428/12576 ,  Y10T428/31678

    Abstract: A hardfacing for downhole progressing cavity pumps is disclosed as well as a method for producing same. The hardfacing consists of a metal carbide layer applied to the ferrous pump rotor body by way of plasma spraying and a top layer of metallic material having a lower hardness than the metal carbide. The metal carbide layer has a grainy surface with a plurality of peaks and intermediate depressions, the peaks being formed by metal carbide grains at the surface of the metal carbide layer. The thickness of the top layer is adjusted such that the depressions between the peaks of the metal carbide layer are completely filled thereby providing the rotor with a metal carbide hardfacing of significantly reduced surface roughness. In the process of the invention, the pump rotor, which may be provided with a molybdenum bonding layer, is plasma coated with the metal carbide and the resulting carbide layer is covered with the metallic material top layer. The top layer is polished either until the dimensions thereof are within the tolerances acceptable for the finished rotor or until a majority of the peaks of the carbide layer are exposed. The hardfacing significantly increases the service life of the rotor and stator of downhole progressing cavity pumps.

    Abstract translation: 公开了一种用于井下前进腔泵的硬化面及其制造方法。 表面硬化由通过等离子喷涂施加到铁水泵转子体上的金属碳化物层和具有比金属碳化物低的硬度的金属材料顶层组成。 金属碳化物层具有多个峰和中间凹陷的颗粒状表面，该峰由金属碳化物层表面的金属碳化物颗粒形成。 调整顶层的厚度，使得金属碳化物层的峰之间的凹陷被完全填充，从而为转子提供显着降低的表面粗糙度的金属碳化物表面硬化。 在本发明的方法中，可以设置有钼粘合层的泵转子被等离子体涂覆有金属碳化物，并且所得到的碳化物层被金属材料顶层覆盖。 抛光顶层，直到其尺寸在成品转子可接受的公差内，或直到碳化物层的大部分峰暴露。 表面硬化显着增加了井下前进腔泵的转子和定子的使用寿命。

    Engine piston assembly and forged piston member therefor having a cooling recess
    6.
    发明授权
    Engine piston assembly and forged piston member therefor having a cooling recess 失效
    发动机活塞组件和具有冷却凹槽的锻造活塞件

    公开(公告)号：US4867119A

    公开(公告)日：1989-09-19

    申请号：US291429

    申请日：1988-12-23

    Applicant: Bruce C. Cooper ,  Kenton L. Erickson ,  James A. Green ,  David S. Nycz

    Inventor： Bruce C. Cooper ,  Kenton L. Erickson ,  James A. Green ,  David S. Nycz

    IPC: F01P3/08 ,  F02B3/06 ,  F02F3/00 ,  F02F3/22 ,  F16J1/00

    CPC classification number: F02F3/0069 ,  F02B3/06 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448 ,  F05C2251/042

    Abstract: Present day diesel engines having aluminum piston assemblies are limited to combustion chamber pressures of approximately 12,410 kPa (1,800 psi) whereas the desire is to increase such pressures up to the 15,170 kPa (2,200 psi) range. To reach such levels the instant piston assembly includes a steel piston member having an upper cylindrical portion defining a top surface, a depending tubular wall and an annular cooling recess having one or more machined surfaces of revolution about a central axis. The cooling recess is located beneath the top surface and juxtaposed to the top ring groove for removing heat away therefrom in use. The piston member is preferably forged and subsequently machined to precisely controllable dimensions. Moreover, the piston assembly is preferably of the articulated type and includes a forged aluminum piston skirt connected to the piston member through a common wrist pin.

    Abstract translation: 具有铝活塞组件的现在的柴油发动机限于大约12,410kPa（1800psi）的燃烧室压力，而期望是将这种压力提高到15,170kPa（2,200psi）的范围。 为了达到这种水平，即时活塞组件包括具有限定顶表面的上圆柱形部分，悬垂管状壁和具有围绕中心轴的一个或多个加工表面的环形冷却凹部的钢活塞构件。 冷却凹槽位于顶部表面下方并且与顶部环槽并排，以在使用中从中除去热量。 活塞构件优选地被锻造并随后被加工成精确可控的尺寸。 此外，活塞组件优选地是铰接型的，并且包括通过公共的手腕销连接到活塞构件的锻造铝活塞裙。

    COMPRESSOR AND REFRIGERATING CYCLE APPARATUS USING THE SAME
    9.
    发明申请
    COMPRESSOR AND REFRIGERATING CYCLE APPARATUS USING THE SAME 审中-公开
    压缩机和制冷循环装置

    公开(公告)号：US20130167580A1

    公开(公告)日：2013-07-04

    申请号：US13821152

    申请日：2011-09-06

    Applicant: Yoshinori Ishida ,  Noboru Iida ,  Shingo Oyagi ,  Shigehiro Sato

    Inventor： Yoshinori Ishida ,  Noboru Iida ,  Shingo Oyagi ,  Shigehiro Sato

    IPC: F04D29/063

    CPC classification number: F04D29/063 ,  F01C21/0809 ,  F04C18/3562 ,  F04C23/008 ,  F04C2210/26 ,  F04C2210/263 ,  F04C2230/21 ,  F04C2230/22 ,  F04C2230/91 ,  F05C2201/0403 ,  F05C2201/0433 ,  F05C2203/083 ,  F05C2251/10

    Abstract: In a compressor, a single refrigerant of hydrofluoroolefin having a double bond of carbon or a mixed refrigerant containing hydrofluoroolefin and hydrofluorocarbon having no double bond of carbon is used, and moreover a refrigerating machine oil containing an additive for suppressing deterioration of the refrigerating machine oil and an antiwear agent is used, the compressor including a sliding portion which is exposed to the mixed refrigerant and the refrigerating machine oil and which has a hardness of 47-55 HRC. Thus, decomposition and polymerization of the refrigerant and the refrigerating machine oil can be inhibited (i.e., occurrence of sludge can be inhibited), and antiwear property of sliding portions, e.g. vane and piston, of the compressor can be maintained. As a result, reliability of the compressor and the refrigerating cycle apparatus using the compressor can be ensured.

    Abstract translation: 在压缩机中，使用具有碳双键的氢氟烯烃的单一制冷剂或含有氢氟烯烃和不含碳双键的氢氟烃的混合制冷剂的单一制冷剂，以及含有用于抑制冷冻机油劣化的添加剂的制冷机油， 使用抗磨剂，该压缩机包括暴露于混合制冷剂和冷冻机油的滑动部分，其硬度为47-55HRC。 因此，可以抑制制冷剂和制冷机油的分解和聚合（即，可以抑制污泥的发生），以及滑动部分的抗磨损性能。 可以保持压缩机的叶片和活塞。 结果，可以确保使用压缩机的压缩机和制冷循环装置的可靠性。

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