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    • 1. 发明申请
    • Multi Stage Diffuser Pump
    • 多级扩散泵
    • US20080014082A1
    • 2008-01-17
    • US11774729
    • 2007-07-09
    • Katsutoshi KobayashiHayato ShimizuTetsuya YoshidaYoshimasa Chiba
    • Katsutoshi KobayashiHayato ShimizuTetsuya YoshidaYoshimasa Chiba
    • F01D1/04
    • F04D29/669F04D29/2216F04D29/245
    • The object of the present invention is to provide a pump structure that can reduce a hydraulic force applied to a casing of a multi stage diffuser pump, which includes multiple stages of impellers fixed to a rotary shaft rotatably supported in the casing and multiple stages of guide vane diffusers and return blade passages fixed on the casing in correspondence with the multiple stages of impellers, thereby reducing the vibrations and noises of the pump. In a multi stage diffuser pump of the type which includes multiple stages of impellers fixed to the rotary shaft and multiple stages of guide vane diffusers and return blade passages fixed on circular disks in the casing in correspondence with the multiple stages of impellers, in the impellers of the two stages of front and rear stages, which are equivalent in the form and number of blades, the phases of positions in the peripheral direction of the blades of the impellers of at least one pair of front and rear stages are deviated from each other by 0.47 pitch or more and 0.53 pitch or less. With this, a hydraulic force in the axial direction applied to the casing can be reduced and hence the vibrations and noises of the pump can be reduced.
    • 本发明的目的是提供一种泵结构,其能够降低施加到多级扩散泵的壳体的液压力,该多级扩散泵包括固定到可旋转地支撑在壳体中的旋转轴的多级叶轮和多级导向件 叶片扩散器和返回叶片通道与多级叶轮相对应地固定在壳体上,从而减少泵的振动和噪声。 在这种类型的多级扩散泵中,其包括固定到旋转轴的多级叶轮和多级导向叶片扩散器和固定在壳体中圆形圆盘上的与多级叶轮相对应的回流叶片通道,在叶轮 在叶片的形式和数量上相当于前级和后级的两级的两级中,至少一对前后级叶轮的叶片的叶片的周向位置的相位彼此偏离 减小0.47节距或0.53节距以下。 由此,能够减小施加在壳体上的轴向的液压力,能够降低泵的振动和噪音。
    • 7. 发明申请
    • ULTRASONIC DIAGNOSTIC APPARATUS, ULTRASONIC IMAGE PROCESSING APPARATUS, AND MEDICAL IMAGE DIAGNOSTIC APPARATUS
    • 超声波诊断装置,超声波图像处理装置和医用图像诊断装置
    • US20110301457A1
    • 2011-12-08
    • US13152675
    • 2011-06-03
    • Hiroki YOSHIARANaohisa KamiyamaTetsuya Yoshida
    • Hiroki YOSHIARANaohisa KamiyamaTetsuya Yoshida
    • A61B8/00
    • G01S7/52071A61B6/481A61B6/504A61B8/08G01S7/52026G01S7/52074
    • According to one embodiment, an ultrasonic diagnostic apparatus which comprises an ultrasonic transmission/reception unit configured to transmit ultrasonic waves to a scan area including a predetermined region throughout an analysis period, receive reflected waves from the scan area, and acquire ultrasonic data associated with the scan area for each phase in the analysis period, an analysis unit configured to generate a luminance time curve associated with at least one analysis area included in the scan area by using the ultrasonic data in each phase in the analysis period and analyze a stagnant time of the contrast medium associated with at least one analysis area based on the generated luminance time curve, an image generation unit configured to generate a stagnant time image for each phase in the analysis period, with different hues being assigned to at least one analysis area in accordance with the stagnant times.
    • 根据一个实施例,一种超声波诊断装置,包括:超声波发送/接收单元,被配置为在整个分析周期内将超声波发送到包括预定区域的扫描区域,接收来自扫描区域的反射波,并获取与该扫描区域相关联的超声波数据 扫描区域,分析单元,被配置为通过在分析周期中的每个阶段中使用超声波数据来生成与包括在扫描区域中的至少一个分析区域相关联的亮度时间曲线,并且分析停止时间 所述造影剂基于所生成的亮度时间曲线与至少一个分析区域相关联;图像生成单元,被配置为在分析周期中为每个相位生成停滞的时间图像,其中不同的色调被分配给至少一个分析区域 随着时间的流逝。