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    • 22. 发明申请
    • HIGH PRESSURE RATIO MULTI-STAGE CENTRIFUGAL COMPRESSOR
    • 高压比多级离心压缩机
    • WO2013133832A2
    • 2013-09-12
    • PCT/US2012/028221
    • 2012-03-08
    • DANFOSS TURBOCOR COMPRESSORS B.V.SUN, LinBRASZ, Joost
    • SUN, LinBRASZ, Joost
    • F25B30/02
    • F25B30/02F04D17/122F04D25/06F04D27/002F04D27/004F04D29/048F04D29/462F25B1/053F25B1/10F25B13/00F25B41/046F25B2600/0253Y02B30/741
    • A heat pump system includes a refrigerant circuit. First and second heat exchangers are arranged in the refrigerant circuit. A flow reversing device selectively changes a direction of flow in the refrigerant circuit between the first and second heat exchangers. A centrifugal compressor is arranged in the fluid circuit and has first and second impellers arranged in series relative to one another to provide a desired compressor pressure ratio. In one example, the centrifugal compressor mounts the first and second impellers on opposing ends of a shaft. The first and second impellers respectively include first and second stage inlets and outlets. One example desired compressor pressure ratio of at least 10:1 corresponds to a second stage outlet pressure to a first stage inlet pressure. A first diffuser is arranged at the first stage outlet, and the first diffuser is a variable geometry diffuser.
    • 热泵系统包括制冷剂回路。 第一和第二热交换器布置在制冷剂回路中。 逆流装置选择性地改变第一和第二热交换器之间的制冷剂回路中的流动方向。 离心压缩机布置在流体回路中,并且具有相对于彼此串联布置的第一和第二叶轮以提供期望的压缩机压力比。 在一个示例中,离心式压缩机将第一和第二叶轮安装在轴的相对端上。 第一和第二叶轮分别包括第一和第二台入口和出口。 至少10:1的所需压缩机压力比的一个示例对应于第二级出口压力到第一级入口压力。 第一扩散器布置在第一级出口处,并且第一扩散器是可变几何形状扩散器。
    • 24. 发明申请
    • VARIABLE-SPEED OIL-FREE REFRIGERANT CENTRIFUGAL COMPRESSOR WITH VARIABLE GEOMETRY DIFFUSER
    • 具有可变几何差速器的可变速无油冷冻离心式压缩机
    • WO2012087306A1
    • 2012-06-28
    • PCT/US2010/061754
    • 2010-12-22
    • DANFOSS TURBOCOR COMPRESSORS B.V.SUN, LinBRASZ, Joost
    • SUN, LinBRASZ, Joost
    • F04D29/44
    • F04D15/00F04D29/444F04D29/462F04D29/464F05D2250/52
    • A refrigerant compressor includes a housing providing a refrigerant outlet having a throat. An electric motor is provided in the housing to directly drive an impeller via a shaft about an axis in response to a variable speed command. The impeller includes an outlet end aligned with variable geometry diffuser. A magnetic bearing assembly rotationally supports the shaft relative to the housing in response to a magnetic bearing command. A member is arranged to adjust the throat area, and which can move in a direction generally parallel to the axis in response to an actuator receiving a compressor regulation command. A controller is configured to respectively provide the variable speed command, the magnetic bearing command and the compressor regulation command to the electric motor to vary throat area, the magnetic bearing assembly and the actuator to obtain a desired compressor operation without the need of variable inlet geometry.
    • 制冷剂压缩机包括提供具有喉部的制冷剂出口的壳体。 电动机设置在壳体中,以响应于可变速度命令经由轴绕轴线直接驱动叶轮。 叶轮包括与可变几何形状扩散器对准的出口端。 磁轴承组件响应于磁轴承指令相对于壳体旋转地支撑轴。 构件被布置成响应于接收压缩机调节命令的致动器而调节喉部区域,并且其可以在大致平行于轴线的方向上移动。 控制器被配置为分别向电动机提供变速指令,磁轴承命令和压缩机调节指令以改变喉部区域,磁轴承组件和致动器以获得期望的压缩机操作,而不需要可变入口几何形状 。
    • 26. 发明授权
    • Ball inflation valve
    • 球充气阀
    • US08540595B1
    • 2013-09-24
    • US13430667
    • 2012-03-26
    • Mei Sun Lin
    • Mei Sun Lin
    • A63B41/02
    • A63B41/02A63B2243/0037F16K15/202Y10T137/3584
    • A ball inflation valve includes a valve body extended into an inflatable inner bladder of a ball and having an axial bore and an annular flange portion; a valve core partially held in the axial bore of the valve body and having an air hole; a canvas superimposing layer flatly superimposed on the annular flange portion of the valve body to locate around the valve core; and a protective top including a sleeve portion enclosing a length of the valve core exposed from the valve body and a locating flange portion radially outward extended from the sleeve portion to locate between a surface cover of the ball and the valve body and the valve core, so that any sulfide from the valve body and the valve core will attach to an inner side of the protective top without forming a yellowing smudge on the ball surface cover.
    • 球膨胀阀包括延伸到球的可充气内囊中并具有轴向孔和环形凸缘部分的阀体; 阀芯部分地保持在阀体的轴向孔中并具有气孔; 平坦地重叠在阀体的环形凸缘部上的帆布叠加层,以围绕阀芯定位; 以及包括套筒部分的保护顶部,所述套筒部分包围从所述阀体暴露的所述阀芯的长度,以及从所述套筒部分径向向外延伸的定位凸缘部分,以定位在所述球的表面盖和所述阀体与所述阀芯之间, 使得来自阀体和阀芯的任何硫化物将附着在保护顶部的内侧,而不会在球表面盖上形成黄色污迹。
    • 27. 发明申请
    • SEAMLESS BALL STRUCTURE
    • 无缝球结构
    • US20100167850A1
    • 2010-07-01
    • US12649131
    • 2009-12-29
    • Mei Sun LIN
    • Mei Sun LIN
    • A63B41/00
    • A63B41/00A63B41/02A63B45/00A63B2243/0025A63B2243/0037A63B2243/0095
    • A seamless ball structure, particularly suitable for balls used in different ball games, such as soccer, volleyball and basketball, includes an inner bladder, and an inner yarn layer, an emulsion layer and an outer cover layer sequentially provided on an outer surface of the inner bladder from inner to outer side. The emulsion layer inwardly permeates into voids among the yarns of the inner yarn layer. The outer cover layer is attached at an inner fabric layer thereof to an outer surface of the emulsion layer. The emulsion layer being heated and pressurized is in an adhering state to sufficiently tightly attach to the inner yarn layer and the outer cover layer, giving the ball so formed an increased structural strength. The ball can be easily and quickly manufactured at reduced manufacturing cost to thereby provide an improved ball structure that does not require any sewing with threads.
    • 特别适用于足球,排球,篮球等不同球类运动中使用的球的无缝球体结构包括:内胎,内纱层,乳液层,外覆层, 内胆从内到外。 乳液层向内渗透到内纱层的纱线中的空隙中。 外覆盖层在其内部织物层附着到乳剂层的外表面。 被加热和加压的乳剂层处于粘合状态,以充分紧密地附着在内纱层和外覆盖层上,使球形成增加的结构强度。 该球可以以降低的制造成本容易且快速地制造,从而提供不需要用线缝合的改进的球结构。