Air compressor
    2.
    发明授权
    Air compressor 失效
    空气压缩机

    公开(公告)号:US5173040A

    公开(公告)日:1992-12-22

    申请号:US658094

    申请日:1991-02-20

    IPC分类号: F04B39/00 F04B39/10

    CPC分类号: F04B39/1073 Y10T137/7887

    摘要: An air compressor comprises a cylinder, a suction valve body operatively combined with the cylinder, wherein the suction valve body is in a form of a band plate having a shape of V-letter with a round bottom, both ends of the suction valve body being arranged outside a projection space of the cylinder and a portion of the suction valve body other than the both ends being arranged inside the projection space of the cylinder, and wherein the air compressor comprises a suction valve plate receptor which can overlap the suction valve body when the suction valve body is in suction stroke and which has a rigidity enough to restrict an amount of lift of the suction valve body.

    摘要翻译: 空气压缩机包括气缸,与气缸可操作地组合的吸入阀体,其中吸入阀体为具有圆形底部的V字形状的带板形式,吸入阀体的两端为 设置在所述气缸的投影空间的外侧,所述吸入阀体的除了两端的一部分配置在所述气缸的突出空间的内侧,并且其中所述空气压缩机包括吸入阀板受体,所述吸入阀板受体可以与所述吸入阀体重叠, 吸入阀体处于吸入行程,并且具有足以限制吸入阀体的升程量的刚性。

    Volumetric type flowmeter having circular and involute tooth shape rotors
    3.
    发明授权
    Volumetric type flowmeter having circular and involute tooth shape rotors 失效
    容积型流量计具有圆形和渐开线齿形转子

    公开(公告)号:US4210410A

    公开(公告)日:1980-07-01

    申请号:US896671

    申请日:1978-04-14

    申请人: Iwao Ohtani

    发明人: Iwao Ohtani

    IPC分类号: G01F3/10 F01C1/16 F04C1/10

    CPC分类号: G01F3/10

    摘要: A volumetric type rotary machine has a pair of rotors each of which has a plurality of teeth comprising tooth crests and valleys alternately disposed at equal angular intervals around the rotor in profile in a cross-sectional plane thereof perpendicular to the rotational axis thereof, which rotors are adapted to rotate in mutually opposite directions in mutually intermeshed state. In each rotor as viewed in the profile in the cross-sectional plane, the tooth crests and valleys respectively have convex and concave arcuate parts over specific peripheral extents thereof centered on the vertices and nadirs thereof, respectively, and remainder parts of involute curve shape between the extremities of the arcuate parts.

    摘要翻译: 一种体积式旋转机器具有一对转子,每个转子具有多个齿,所述多个齿包括在其垂直于其旋转轴线的横截面中以等角度间隔围绕转子轮廓交替设置的齿顶和谷,该转子 适于在彼此相互啮合的状态下沿彼此相反的方向旋转。 在每个转子中,在横截面中的轮廓中观察到,齿峰和谷分别在其顶点和顶点的中心的特定外围区域上分别具有凸形和凹形弓形部分,并且在其间部分的渐开线曲线形状在 弧形部分的四肢。

    Scroll type fluid apparatus with rotation restraining mechanism
    5.
    发明授权
    Scroll type fluid apparatus with rotation restraining mechanism 失效
    带旋转限制机构的涡旋式流体设备

    公开(公告)号:US5154592A

    公开(公告)日:1992-10-13

    申请号:US598413

    申请日:1990-10-18

    IPC分类号: F04C25/02 F01C17/06 F04C18/02

    摘要: A scroll type fluid apparatus, such as a scroll vacuum pump or a scroll compressor, does not require lubrication by an external lubricating device. The scroll type fluid apparatus includes a casing, a stationary scroll member fixed to the casing, an orbiting scroll member cooperating with the stationary scroll member to form sealed chambers therebetween, and a restraining mechanism for restraining the orbiting scroll member from rotating about its own axis. The restraining mechanism employs prelubricated sealed bearings which support its component parts so that the component parts are in rolling contact with the corresponding portions of the orbiting scroll member, so that the component parts and the corresponding portions of the orbiting scroll member are not radially abraded, and portions of the scroll type fluid apparatus exposed to the fluid need not be lubricated by an external lubricating device.

    摘要翻译: 诸如涡卷真空泵或涡旋压缩机之类的涡旋式流体装置不需要外部润滑装置的润滑。 涡旋式流体装置包括壳体,固定在壳体上的固定涡旋件,与固定涡旋件配合以在其间形成密封室的动涡旋件,以及用于限制绕动涡旋件围绕其自身轴线旋转的约束机构 。 限制机构采用预润滑密封轴承,其支撑其组成部件,使得部件与绕动涡旋件的相应部分滚动接触,使得绕动涡旋件的部件和对应部分不被径向磨损, 暴露于流体的涡旋型流体设备的部分不需要被外部润滑装置润滑。