Multistage centrifugal compressor
    1.
    发明授权
    Multistage centrifugal compressor 有权
    多级离心压缩机

    公开(公告)号:US08287236B2

    公开(公告)日:2012-10-16

    申请号:US12117288

    申请日:2008-05-08

    IPC分类号: F04D1/10

    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。

    Multistage centrifugal compressor
    2.
    发明授权
    Multistage centrifugal compressor 有权
    多级离心压缩机

    公开(公告)号:US08267644B2

    公开(公告)日:2012-09-18

    申请号:US12511743

    申请日:2009-07-29

    IPC分类号: F04D29/44

    摘要: In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.

    摘要翻译: 在多级离心式压缩机中,多个叶轮连接在同一个旋转轴上。 对于构成压缩机的各个压缩机级,使用Vaned扩散器和无叶扩散器作为扩散器。 从第一压缩机阶段到中间压缩机阶段连续使用有叶扩散器,无级扩散器用于最后一个压缩机级和前一级。 在具有带叶片的扩散器的压缩机级保持高效率的情况下,在具有无叶漫射器的压缩机级确保工作流量范围。

    CENTRIFUGAL COMPRESSOR
    3.
    发明申请
    CENTRIFUGAL COMPRESSOR 有权
    离心式压缩机

    公开(公告)号:US20100129224A1

    公开(公告)日:2010-05-27

    申请号:US12623089

    申请日:2009-11-20

    IPC分类号: F04D29/28 B23P15/04

    摘要: A centrifugal compressor provided with an impeller which is configured to have a plurality of blades arranged at a predetermined interval in a circumferential direction of a hub rotating together with a rotation shaft, in which a blade angle on a shroud side of the blade distributes to have a minimum value at a position between a leading edge of the blade and a midpoint of a camber line on the shroud side, and a maximum value at a position between the midpoint of the camber line on the shroud side and a trailing edge of the blade, and a blade angle of the blade on a hub side distributes so as to have a maximum value at a position between a leading edge and a midpoint of a camber line on the hub side.

    摘要翻译: 一种设置有叶轮的离心式压缩机,其被构造成具有在与旋转轴一起旋转的轮毂的圆周方向上以预定间隔布置的多个叶片,叶片的护罩侧的叶片角度分布在其中, 在叶片的前缘和护罩侧的外倾线的中点之间的位置处的最小值以及护罩侧的外倾线的中点与叶片的后缘之间的位置处的最大值 并且轮毂侧上的叶片的叶片角度分布成在轮毂侧的倾斜线的前缘和中点之间的位置处具有最大值。

    Centrifugal compressor
    4.
    发明授权
    Centrifugal compressor 有权
    离心式压缩机

    公开(公告)号:US08475131B2

    公开(公告)日:2013-07-02

    申请号:US12623089

    申请日:2009-11-20

    IPC分类号: F04D29/38

    摘要: A centrifugal compressor provided with an impeller which is configured to have a plurality of blades arranged at a predetermined interval in a circumferential direction of a hub rotating together with a rotation shaft, in which a blade angle on a shroud side of the blade distributes to have a minimum value at a position between a leading edge of the blade and a midpoint of a camber line on the shroud side, and a maximum value at a position between the midpoint of the camber line on the shroud side and a trailing edge of the blade, and a blade angle of the blade on a hub side distributes so as to have a maximum value at a position between a leading edge and a midpoint of a camber line on the hub side.

    摘要翻译: 一种设置有叶轮的离心式压缩机,其被构造成具有在与旋转轴一起旋转的轮毂的圆周方向上以预定间隔布置的多个叶片,叶片的护罩侧的叶片角度分布在其中, 在叶片的前缘和护罩侧的外倾线的中点之间的位置处的最小值以及护罩侧的外倾线的中点与叶片的后缘之间的位置处的最大值 并且轮毂侧上的叶片的叶片角度分布成在轮毂侧的倾斜线的前缘和中点之间的位置处具有最大值。

    MULTISTAGE CENTRIFUGAL COMPRESSOR
    5.
    发明申请
    MULTISTAGE CENTRIFUGAL COMPRESSOR 有权
    多级离心式压缩机

    公开(公告)号:US20100028141A1

    公开(公告)日:2010-02-04

    申请号:US12511743

    申请日:2009-07-29

    IPC分类号: F04D29/44

    摘要: In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.

    摘要翻译: 在多级离心式压缩机中,多个叶轮连接在同一个旋转轴上。 对于构成压缩机的各个压缩机级,使用Vaned扩散器和无叶扩散器作为扩散器。 从第一压缩机阶段到中间压缩机阶段连续使用有叶扩散器,无级扩散器用于最后一个压缩机级和前一级。 在具有带叶片的扩散器的压缩机级保持高效率的情况下,在具有无叶漫射器的压缩机级确保工作流量范围。

    Centrifugal compressor having vaneless diffuser and vaneless diffuser thereof
    6.
    发明授权
    Centrifugal compressor having vaneless diffuser and vaneless diffuser thereof 有权
    离心式压缩机具有无叶漫射器和无叶漫射器

    公开(公告)号:US08313290B2

    公开(公告)日:2012-11-20

    申请号:US12488910

    申请日:2009-06-22

    IPC分类号: F04D29/44

    CPC分类号: F04D29/441

    摘要: In a high pressure centrifugal compressor, the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor has a first vaneless diffuser with a constant flow channel height on the downstream side of an impeller, and a second vaneless diffuser in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser. These diffusers are combined with an impeller using thick blades.

    摘要翻译: 在高压离心式压缩机中,防止了在比较低的特定速度车轮台处显示的转动失速的发生,从而获得了高效率的流体性能,并提高了可靠性。 离心压缩机具有在叶轮的下游侧具有恒定的流动通道高度的第一无叶漫射器和第二无叶漫射器,其中流动通道高度在流动方向上从入口到下游侧的出口减小 第一个无叶漫射器。 这些扩散器与使用厚叶片的叶轮组合。

    CENTRIFUGAL COMPRESSOR HAVING VANELESS DIFFUSER AND VANELESS DIFFUSER THEREOF
    7.
    发明申请
    CENTRIFUGAL COMPRESSOR HAVING VANELESS DIFFUSER AND VANELESS DIFFUSER THEREOF 有权
    具有无缝差速器和无级差速器的离心式压缩机

    公开(公告)号:US20090317248A1

    公开(公告)日:2009-12-24

    申请号:US12488910

    申请日:2009-06-22

    IPC分类号: F04D29/44

    CPC分类号: F04D29/441

    摘要: In a high pressure centrifugal compressor, the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor has a first vaneless diffuser with a constant flow channel height on the downstream side of an impeller, and a second vaneless diffuser in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser. These diffusers are combined with an impeller using thick blades.

    摘要翻译: 在高压离心式压缩机中,防止了在比较低的特定速度车轮台处显示的转动失速的发生,从而获得了高效率的流体性能,并提高了可靠性。 离心压缩机具有在叶轮的下游侧具有恒定的流动通道高度的第一无叶漫射器和第二无叶漫射器,其中流动通道高度在流动方向上从入口到下游侧的出口减小 第一个无叶漫射器。 这些扩散器与使用厚叶片的叶轮组合。

    Turbo machinery
    8.
    发明授权
    Turbo machinery 失效
    涡轮机械

    公开(公告)号:US08616843B2

    公开(公告)日:2013-12-31

    申请号:US12907126

    申请日:2010-10-19

    IPC分类号: F04D29/44

    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。

    Developing device and image forming apparatus
    9.
    发明授权
    Developing device and image forming apparatus 有权
    显影装置和图像形成装置

    公开(公告)号:US09134652B2

    公开(公告)日:2015-09-15

    申请号:US13584019

    申请日:2012-08-13

    摘要: A developing device includes a developer carrying member, rotatable while carrying a developer, for supplying developer to an image bearing member, a developer supplying member, which is provided with a foam layer at its surface and is rotatable in contact with the developer carrying member, for supplying the developer to the developer carrying member, and a first gear for transmitting a driving force to the developer supplying member. The first gear is movable to a first position where the driving force is not transmitted to the developer supplying member and to a second position where the driving force is transmitted to the developer supplying member. During initial drive of the developer carrying member, the developer supplying member is rotated by a frictional force generated between the developer supplying member and the developer carrying member, with the first gear to be moved from the first position to the second position.

    摘要翻译: 显影装置包括显影剂承载构件,其可携带显影剂可旋转,用于向图像承载构件供应显影剂;显影剂供应构件,其在其表面处设置有泡沫层并且可旋转地与显影剂承载构件接触; 用于将显影剂供应到显影剂承载构件,以及用于将驱动力传递到显影剂供应构件的第一齿轮。 第一齿轮可移动到驱动力不传递到显影剂供应构件的第一位置和驱动力传递到显影剂供应构件的第二位置。 在显影剂承载构件的初始驱动期间,显影剂供应构件通过在显影剂供应构件和显影剂承载构件之间产生的摩擦力而旋转,第一齿轮将从第一位置移动到第二位置。

    Analysis device and an analysis apparatus using the analysis device
    10.
    发明授权
    Analysis device and an analysis apparatus using the analysis device 有权
    分析装置和使用分析装置的分析装置

    公开(公告)号:US08709346B2

    公开(公告)日:2014-04-29

    申请号:US12945215

    申请日:2010-11-12

    IPC分类号: G01N33/00

    摘要: An analysis device includes a separation chamber, a holding channel, a mixing chamber connected to the holding channel, an overflow channel connected between the holding channel and the separation chamber, a sample overflow chamber into which a sample solution remaining in the separation chamber is discharged, and a joint channel connecting the separation chamber and the sample overflow chamber. After the separated solution component fills the overflow channel with priority, a separated solid component is transferred to the holding channel via the overflow channel, and a predetermined amount of the solid component is measured. The solid component in the holding channel is transferred to the mixing chamber by a centrifugal force, and simultaneously, the sample solution remaining in the separation chamber is discharged to the sample overflow chamber by the siphon effect of the joint channel.

    摘要翻译: 分析装置包括分离室,保持通道,连接到保持通道的混合室,连接在保持通道和分离室之间的溢流通道,分离室中残留的样品溶液排出的样品溢流室 以及连接分离室和样品溢流室的接合通道。 在分离的溶液成分优先填充溢流通道后,分离的固体成分通过溢流通道被传送到保持通道,并测量预定量的固体成分。 保持通道中的固体成分通过离心力转移到混合室中,同时,残留在分离室中的样品溶液通过接头通道的虹吸作用被排出到样品溢流室。