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    Refrigerant compressor and refrigeration cycle apparatus
    71.
    发明授权
    Refrigerant compressor and refrigeration cycle apparatus 有权
    制冷压缩机和制冷循环装置

    公开(公告)号：US08899949B2

    公开(公告)日：2014-12-02

    申请号：US13496660

    申请日：2010-09-08

    Applicant: Toshimasa Aoki ,  Koji Satodate ,  Kazu Takashima

    Inventor： Toshimasa Aoki ,  Koji Satodate ,  Kazu Takashima

    IPC: F01C21/00 ,  F01C1/30 ,  B32B15/04 ,  F04C18/356 ,  F01C21/08

    CPC classification number: F04C18/3564 ,  F01C21/08 ,  F01C21/0881 ,  F04C2230/21 ,  F04C2230/91 ,  F04C2230/92 ,  F05C2201/0403 ,  F05C2201/0406 ,  F05C2201/0439 ,  F05C2201/0442 ,  Y10T428/12549 ,  Y10T428/12576

    Abstract: A refrigerant compressor includes a compression unit having a roller and a vane for compressing refrigerant. The vane has a film having first to fourth layers on its metallic base member. The first layer is made of chromium. The second layer is made of chromium and tungsten-carbide. The third layer is made of metal-containing amorphous-carbon containing at least tungsten or tungsten-carbide. The fourth layer is made of non-metal-containing amorphous-carbon containing carbon and hydrogen. In the second layer, chromium content-rate on a first-layer side is larger than on a third-layer side, and tungsten-carbide content-rate on the third-layer side is larger than on the first-layer side. In the third layer, content-rate of the at least tungsten or tungsten-carbide on a second-layer side is larger than on a fourth-layer side. The roller with which an end-edge of the vane slidably-contacts is made of flake graphite cast iron containing molybdenum, nickel and chromium.

    Abstract translation: 制冷剂压缩机包括具有辊和用于压缩制冷剂的叶片的压缩单元。 叶片具有在其金属基底上具有第一至第四层的膜。 第一层由铬制成。 第二层由铬和碳化钨制成。 第三层由至少含有钨或碳化钨的含金属的无定形碳制成。 第四层由含有非金属的非晶碳碳和氢制成。 在第二层中，第一层侧的铬含量比第三层侧的铬含量高，第三层侧的碳化钨含有率大于第一层侧的碳含量。 在第三层中，第二层侧的至少钨或碳化钨的含有率大于第四层侧的含量。 叶片的端部边缘滑动接触的辊由含有钼，镍和铬的片状石墨铸铁制成。

    Two-part piston for an internal combustion engine
    72.
    发明授权
    Two-part piston for an internal combustion engine 有权
    用于内燃机的两部分活塞

    公开(公告)号：US08631736B2

    公开(公告)日：2014-01-21

    申请号：US12312742

    申请日：2007-10-23

    Applicant: Jochen Kortas ,  Christof Geissler

    Inventor： Jochen Kortas ,  Christof Geissler

    IPC: F16J1/00

    CPC classification number: F02F3/22 ,  F02F3/0023 ,  F05C2201/0406 ,  F05C2253/12

    Abstract: The invention relates to a two-part piston (1) for an internal combustion engine, consisting of an upper part (2) and a lower part (3) which is screwed to the upper part. The upper part (2) and the lower part (3) are in contact with each other, partially by means of inner bearing surfaces (25, 26) defining the lower side of an upper ring rib (10) and the upper side of a lower ring rib (11), and partially by means of outer bearing surfaces (28, 29) defining the lower side of the ring wall (9) and the upper side of a collar (27) applied to the lower part (29). In order to avoid frictional rubbing, frictional heat sealing and pressure-related material heat sealing, at least one of the bearing surfaces (25, 26, 28, 29) is easily and economically provided with a chrome layer (30) which has a structured surface comprising a plurality of raised parts and recesses.

    Abstract translation: 本发明涉及一种用于内燃机的两部分活塞（1），其由与上部螺纹连接的上部（2）和下部（3）组成。 上部（2）和下部（3）彼此接触，部分地通过限定上环肋（10）的下侧的内支承表面（25,26）和上环 下部环形肋（11），并且部分地通过限定环形壁（9）的下侧的外部支承表面（28,29）和施加到下部（29）的轴环（27）的上侧。 为了避免摩擦摩擦，摩擦热封和压力相关的材料热封，至少一个轴承表面（25,26,28,29）容易且经济地设置有铬层（30），其具有结构化 表面包括多个凸起部分和凹部。

    Reciprocating fluid pumps with chromium nitride coated components in contact with non-metallic packing and gasket materials for increased seal life
    75.
    发明授权
    Reciprocating fluid pumps with chromium nitride coated components in contact with non-metallic packing and gasket materials for increased seal life 失效
    往复式流体泵与氮化铬涂层组件接触非金属填料和衬垫材料，增加密封寿命

    公开(公告)号：US06212997B1

    公开(公告)日：2001-04-10

    申请号：US09243517

    申请日：1999-02-01

    Applicant: Mark W. McCollough ,  Joseph J. Karbowniczek

    Inventor： Mark W. McCollough ,  Joseph J. Karbowniczek

    IPC: F01B3110

    CPC classification number: F04B53/164 ,  F04B53/144 ,  F05C2201/0406 ,  F05C2201/0412 ,  F05C2201/0415 ,  F05C2211/00 ,  F05C2225/00 ,  F05C2253/12

    Abstract: Chromium nitride coating of machine components such as reciprocating pump plungers for continuous sliding contact with non-metallic packing and gasket materials greatly increases the performance life of fluid seals. In an air driven reciprocating constant pressure pump, exterior surfaces of the pump plunger are coated with chromium nitride to a thickness of seven to ten microns. The coating resists failure from repeated sliding contact against non-metallic packing and gasket materials for at least four million pump cycles, with no evidence of cracking or release of metallic particles which would embed in the packing or gasket material and score the plunger. In lower pressure pumps, interior walls of a housing against which a sliding gasket bears, when coated with chromium nitride, greatly increase the seal life of the sliding gasket.

    Abstract translation: 用于与非金属填料和衬垫材料连续滑动接触的往复式泵柱塞等机械部件的氮化铬涂层大大增加了流体密封件的使用寿命。 在空气驱动的往复式恒压泵中，泵柱塞的外表面涂覆有氮化铬，厚度为7至10微米。 该涂层可抵抗非金属填料和垫片材料反复滑动接触至少四百万泵循环的故障，没有任何迹象表明会嵌入填料或垫圈材料中的金属颗粒的破裂或释放，并使柱塞得分。 在低压泵中，当涂覆有氮化铬时，滑动垫圈承受的外壳的内壁大大增加了滑动垫圈的密封寿命。

    Rotary compressor
    76.
    发明授权
    Rotary compressor 有权
    旋转压缩机

    公开(公告)号：US06142756A

    公开(公告)日：2000-11-07

    申请号：US310577

    申请日：1999-05-12

    Applicant: Takeshi Hashimoto ,  Mototaka Esumi ,  Osamu Aiba ,  Mitsuru Kurimoto

    Inventor： Takeshi Hashimoto ,  Mototaka Esumi ,  Osamu Aiba ,  Mitsuru Kurimoto

    IPC: F04C29/00 ,  C22C38/00 ,  F01C21/08 ,  F04C18/356 ,  F03C2/00

    CPC classification number: F01C21/0809 ,  F01C21/08 ,  F04C2220/26 ,  F04C2230/22 ,  F04C2230/92 ,  F05C2201/0406 ,  F05C2203/083

    Abstract: A vane of a compressor is made of solid phase sintering material of which a sintering density is not less than 7.2g/cm.sup.3 and a hollow rate is not more than 10%, and to which CrN phase is adhered through a PVD process. A roller of the compressor is made of hardened and tempered material having a hardness equal to cast iron FC300 (specified by JIS). The roller may be made of hardened and tempered material including at least one of Ni, Cr and Mo, and having a hardness equal to cast iron FC300. The vane and roller are combined, so that a sliding section having excellent abrasion-resistance can be constructed. As a result, a rotary compressor, which employs R134a or R22 coolant as well as HFC system or HC system coolant both of which are R22 substitutes, having extremely high reliability can be realized.

    Abstract translation: 压缩机的叶片由固相烧结材料制成，其烧结密度不小于7.2g / cm 3，中空率不大于10％，并且通过PVD工艺粘附CrN相。 压缩机的辊由具有等于铸铁FC300（JIS规定）的硬度和回火材料制成。 辊可以由包括Ni，Cr和Mo中的至少一种的淬火和回火材料制成，并且具有等于铸铁FC300的硬度。 组合叶片和辊，从而可以构成具有优异耐磨性的滑动部分。 结果，可以实现采用R134a或R22冷却剂的旋转压缩机以及具有极高可靠性的R22替代物的HFC系统或HC系统冷却剂。

    Hardfacing for progressing cavity pump rotors
    77.
    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。

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