公开(公告)号：US20080279680A1

公开(公告)日：2008-11-13

申请号：US12117288

申请日：2008-05-08

申请人： Hideo NISHIDA ,  Hiromi KOBAYASHI ,  Masanori TANAKA ,  Tadaharu KISHIBE ,  Manabu YAGI ,  Tetsuya KUWANO

发明人： Hideo NISHIDA ,  Hiromi KOBAYASHI ,  Masanori TANAKA ,  Tadaharu KISHIBE ,  Manabu YAGI ,  Tetsuya KUWANO

IPC分类号： F04D17/12 ,  F04D29/22

CPC分类号： F04D29/444 ,  F04D17/122 ,  F04D29/4213

摘要： A multistage centrifugal compressor includes a rotary shaft, and multistage impellers attached to the rotary shaft. Each of the impellers includes a hub, a shroud and blades therebetween in a radial cascade arrangement. An annular suction passage for guiding the fluid flow from the inward radial direction to a blade inlet is disposed upstream of the centrifugal impeller. A diffuser is disposed downstream of the centrifugal impeller. A bend portion is disposed downstream of the diffuser, and a return channel with a guide blade portion is disposed downstream of the bend portion. The annular suction passage at a hub side includes an axial parallel portion.

摘要翻译： 多级离心压缩机包括旋转轴和连接到旋转轴的多级叶轮。 每个叶轮在径向级联布置中包括轮毂，护罩和叶片。 用于将流体流动从内向径向引导到叶片入口的环形抽吸通道设置在离心式叶轮的上游。 扩散器设置在离心式叶轮的下游。 弯曲部设置在扩散器的下游，并且具有引导叶片部分的返回通道设置在弯曲部分的下游。 在轮毂侧的环形吸入通道包括轴向平行部分。

公开(公告)号：US20110097203A1

公开(公告)日：2011-04-28

申请号：US12907126

申请日：2010-10-19

申请人： Takanori SHIBATA ,  Manabu YAGI ,  Hideo NISHIDA ,  Hiromi KOBAYASHI ,  Masanori TANAKA

发明人： Takanori SHIBATA ,  Manabu YAGI ,  Hideo NISHIDA ,  Hiromi KOBAYASHI ,  Masanori TANAKA

IPC分类号： F04D29/44

CPC分类号： F04D29/444 ,  F04D17/12 ,  F04D29/681 ,  F05D2250/52

摘要： Turbo machinery comprising an impeller and a diffuser positioned on a downstream side of the impeller that a channel wall surface of the diffuser is composed of a pair of a shroud side diffuser plate and a hub side diffuser plate which surface each other and a channel width is formed so as to be increased downstream, characterized in that guide vanes in a circular arc shape lower in height than the channel width are installed in a line of a plurality of vanes on both channel walls of the shroud side diffuser plate and hub side diffuser plate of the diffuser, and a total of vane heights of the two guide vanes at an outlet of the diffuser is set so as to be within a range from 30 to 70% of the channel width at the outlet of the diffuser.

摘要翻译： 涡轮机械包括叶轮和位于叶轮下游侧的扩散器，扩散器的通道壁表面由一对彼此面对并且沟道宽度的护罩侧扩散板和轮毂侧扩散板组成， 形成为向下游侧增加，其特征在于，在所述护罩侧扩散板和轮毂侧扩散板的两个通道壁上的多个叶片的一条线上安装有高于沟道宽度的圆弧形状的导向叶片 的扩散器的出口处的两个导向叶片的叶片高度的总和被设定为在扩散器的出口处的通道宽度的30至70％的范围内。

公开(公告)号：US20120307408A1

公开(公告)日：2012-12-06

申请号：US13586214

申请日：2012-08-15

申请人： Masanori TANAKA ,  Morihisa Hirata ,  Hitoshi Okamoto

发明人： Masanori TANAKA ,  Morihisa Hirata ,  Hitoshi Okamoto

IPC分类号： H02H9/04

CPC分类号： H03K19/00315 ,  H01L27/0251 ,  H01L27/0292

摘要： A protection circuit includes a first power supply system including a first power supply and a first ground, a second power supply system including a second power supply and a second ground, and a control circuit that, when coupled to an electro-static discharge (ESD) stress being applied to the first power supply system, controls a first switch. The first switch is provided between the signal line and the first ground. The control circuit includes a capacitance element, a resistance element in series with the capacitance element, and an inverter, an output of the inverter being connected between a gate of the first switch, an input of the inverter being connected to a connecting point between the capacitance element and the resistance element.

摘要翻译： 保护电路包括包括第一电源和第一接地的第一电源系统，包括第二电源和第二接地的第二电源系统以及当耦合到静电放电（ESD）时的控制电路 ）应力施加到第一电源系统，控制第一开关。 第一开关设置在信号线和第一接地之间。 控制电路包括电容元件，与电容元件串联的电阻元件和反相器，反相器的输出连接在第一开关的栅极之间，反相器的输入端连接到第一开关的连接点 电容元件和电阻元件。