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    ROTARY COMPRESSOR
    32.
    发明申请
    ROTARY COMPRESSOR 有权
    旋转式压缩机

    公开(公告)号：US20160138593A1

    公开(公告)日：2016-05-19

    申请号：US14898042

    申请日：2014-01-29

    Applicant: FUJITSU GENERAL LIMITED

    Inventor： Junya TANAKA ,  Kenji KOMINE

    IPC: F04C18/356 ,  F04C29/12

    CPC classification number: F04C18/3564 ,  C23C8/04 ,  C23C8/26 ,  C23C28/044 ,  C23C28/046 ,  F01C21/0809 ,  F04C23/001 ,  F04C23/008 ,  F04C29/12 ,  F04C2230/91 ,  F04C2230/92 ,  F05C2201/0406 ,  F05C2201/0409 ,  F05C2201/0439 ,  F05C2201/0448 ,  F05C2201/046 ,  F05C2201/0466 ,  F05C2203/0808 ,  F05C2203/083 ,  F05C2203/0882 ,  F05C2253/12

    Abstract: A rotary compressor includes a compressing unit including: an annular cylinder; an end plate having a bearing unit, and closing an end portion of the cylinder; an annular piston fitted in a rotation shaft in the bearing unit, performing an orbital motion inside the cylinder, and forming an operation chamber with the cylinder inner wall; and a vane protruding from a groove of the cylinder to the operation chamber, coming into contact with the annular piston, and partitioning the operation chamber into an inlet chamber and a compression chamber. The vane is formed of steel and has a diamond-like carbon layer on a sliding surface with respect to the annular piston. The annular piston is formed of Ni—Cr—Mo cast iron to which 0.15 wt % to 0.45 wt % of phosphorus is added, or formed of cast iron or steel, and has an iron nitride layer on its outer circumferential surface.

    Abstract translation: 旋转式压缩机包括：压缩单元，包括：环形气缸; 端板，其具有轴承单元，并且封闭所述气缸的端部; 安装在所述轴承单元中的旋转轴中的环形活塞，在所述气缸内部进行轨道运动，并且与所述气缸内壁形成操作室; 以及从所述气缸的槽突出到所述操作室的叶片，与所述环形活塞接触，并将所述操作室分隔成入口室和压缩室。 叶片由钢形成，并且在相对于环形活塞的滑动表面上具有类金刚石碳层。 环形活塞由添加了0.15重量％至0.45重量％的磷或由铸铁或钢制成的Ni-Cr-Mo铸铁形成，并且在其外圆周表面上具有氮化铁层。

    Semi-spherical shoe
    35.
    发明授权
    Semi-spherical shoe 有权
    半球鞋

    公开(公告)号：US06626084B1

    公开(公告)日：2003-09-30

    申请号：US09889710

    申请日：2001-07-18

    Applicant: Seiichi Nakayama ,  Shogo Muramatsu ,  Akira Takenaka

    Inventor： Seiichi Nakayama ,  Shogo Muramatsu ,  Akira Takenaka

    IPC: F01B300

    CPC classification number: F04B27/0886 ,  F05C2201/0409 ,  F05C2253/12

    Abstract: A semi-spherical shoe 1 includes an end face 1B which is disposed in sliding contact with a swash plate 3 and a semi-spherical surface 1A which is disposed in sliding contact with a semi-spherical recess 2A formed in a piston 2. A spherical recess 1C is formed in the top portion of the semi-spherical surface 1A to define a space 4 which serves as a reservoir of lubricant oil between the spherical recess 1C and the semi-spherical recess 2B. If the volume of the space 4 which serves as a reservoir of lubricant oil is increased, an accumulation of abraded power in the spherical recess 1C which forms the space can be prevented in a favorable manner.

    Abstract translation: 半球形鞋1包括与斜盘3滑动接触的端面1B和与形成在活塞2中的半球形凹部2A滑动接触的半球面1A。球面 凹槽1C形成在半球形表面1A的顶部，以限定用作在球形凹槽1C和半球形凹部2B之间的润滑油储存器的空间4。 如果作为润滑油的储存器的空间4的容积增加，则可以以有利的方式防止形成空间的球形凹部1C中的磨损力的累积。

    Method of applying a filled in metal carbide hard facing to the rotor of a progressing cavity pump
    36.
    发明授权
    Method of applying a filled in metal carbide hard facing to the rotor of a progressing cavity pump 失效
    将填充的金属碳化物硬质面朝向腔室泵的转子施加的方法

    公开(公告)号：US5645896A

    公开(公告)日：1997-07-08

    申请号：US588141

    申请日：1996-01-18

    Applicant: Robert A.R. Mills

    Inventor： Robert A.R. Mills

    IPC: F04C2/107 ,  C23C4/10

    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。

    Low friction reciprocating piston assembly
    37.
    发明授权
    Low friction reciprocating piston assembly 失效
    低摩擦往复活塞组件

    公开(公告)号：US5313919A

    公开(公告)日：1994-05-24

    申请号：US76225

    申请日：1993-06-14

    Applicant: Vemulapalli D. N. Rao ,  Daniel M. Kabat ,  David A. Yeager

    Inventor： Vemulapalli D. N. Rao ,  Daniel M. Kabat ,  David A. Yeager

    IPC: F02B3/06 ,  F02B77/02 ,  F02F3/10 ,  F16J1/02 ,  F16N15/00 ,  F22B5/00

    CPC classification number: F02F3/10 ,  F02B77/02 ,  F16J1/02 ,  F16N15/00 ,  F02B3/06 ,  F05C2201/021 ,  F05C2201/0409 ,  F05C2201/0448 ,  F05C2203/0808 ,  Y10T29/49263

    Abstract: A low-friction piston construction for use in an oil-fed cylinder bore with the piston skirt relieved to define lands that are coated with SFL (graphite, MoS.sub.2, BN, and a special expoxy resin). A method of making such piston construction including provision of asperities on the skirt wall onto which the SFL coating is thermally sprayed and formation of small pockets at the mouth of the asperities to additionally act as oil replenishing reservoirs. A method of using such piston construction in an engine which comprises provisions of a slightly increased gap between the piston and cylinder wall and formation of a transferred SFL coating from the piston to the cylinder wall resulting in two polished microsmooth mating coatings, each attractive to oil films.

    Abstract translation: 用于供油气缸孔的低摩擦活塞结构，活塞裙部释放以限定用SFL（石墨，MoS2，BN和特殊的环氧树脂）涂覆的焊盘。 一种制造这种活塞结构的方法，包括在裙壁上设置粗糙度，SFL涂层在其上被喷涂在其上，并在凹凸的口部形成小口袋以附加地充当补油池。 在发动机中使用这种活塞结构的方法，其包括活塞和气缸壁之间略微增加的间隙和从活塞到气缸壁的转移的SFL涂层的形成，从而产生两个抛光的微平滑配合涂层，每个涂层对油 电影。

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