公开(公告)号：US08953035B2

公开(公告)日：2015-02-10

申请号：US13381244

申请日：2010-07-05

Applicant: Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

Inventor： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

IPC: G01P5/22 ,  G01P5/26 ,  G01M9/06 ,  G01P5/00 ,  G01S17/58

CPC classification number: G01M9/067 ,  G01P5/001 ,  G01P5/22 ,  G01P5/26 ,  G01S17/58

Abstract: A particle image velocimetry system is provided which supplies tracer particles to a flow field around an object (12) from tracer particle supply means, takes an image of reflected light by imaging means (32A, 32B) by irradiating the tracer particles twice with laser light at different times, and determines a velocity vector of the flow field based on the two images obtained of the tracer particles. The two images are each divided into a plurality of test regions, and when first peak value (fp)/second peak value (sp)≧1.2 is satisfied by comparison between a first peak value fp and a second peak value sp of a cross-correlation value of a luminance pattern of tracer particles in each test region of the two images, it is determined that the reliability of the velocity vector is high. Thus, it is possible to enhance the precision of measurement of the state of flow by reliably determining erroneous vectors.

Abstract translation: 提供一种粒子图像测速系统，其向示踪剂颗粒供应装置的物体（12）周围的流场提供示踪剂颗粒，通过用激光照射示踪剂颗粒两次，通过成像装置（32A，32B）拍摄反射光的图像 并根据获得的示踪粒子的两个图像确定流场的速度矢量。 两个图像分别被分成多个测试区域，并且当通过第一峰值值fp和第二峰值值sp之间的比较来满足第一峰值（fp）/第二峰值（sp）≥1.2）时， 在两个图像的每个测试区域中的示踪剂颗粒的亮度图案的相关值，确定速度矢量的可靠性高。 因此，可以通过可靠地确定错误矢量来提高流量状态的测量精度。

公开(公告)号：US20120105628A1

公开(公告)日：2012-05-03

申请号：US13381244

申请日：2010-07-05

Applicant: Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

Inventor： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

IPC: H04N7/18

CPC classification number: G01M9/067 ,  G01P5/001 ,  G01P5/22 ,  G01P5/26 ,  G01S17/58

Abstract: A particle image velocimetry system is provided which supplies tracer particles to a flow field around an object (12) from tracer particle supply means, takes an image of reflected light by imaging means (32A, 32B) by irradiating the tracer particles twice with laser light at different times, and determines a velocity vector of the flow field based on the two images obtained of the tracer particles. The two images are each divided into a plurality of test regions, and when first peak value (fp)/second peak value (sp)≧1.2 is satisfied by comparison between a first peak value fp and a second peak value sp of a cross-correlation value of a luminance pattern of tracer particles in each test region of the two images, it is determined that the reliability of the velocity vector is high. Thus, it is possible to enhance the precision of measurement of the state of flow by reliably determining erroneous vectors.

Abstract translation: 提供一种粒子图像测速系统，其向示踪剂颗粒供应装置的物体（12）周围的流场提供示踪剂颗粒，通过用激光照射示踪剂颗粒两次，通过成像装置（32A，32B）拍摄反射光的图像 并根据获得的示踪粒子的两个图像确定流场的速度矢量。 两个图像分别被分成多个测试区域，并且当通过第一峰值值fp和第二峰值值sp之间的比较来满足第一峰值（fp）/第二峰值（sp）≥1.2）时， 在两个图像的每个测试区域中的示踪剂颗粒的亮度图案的相关值，确定速度矢量的可靠性高。 因此，可以通过可靠地确定错误矢量来提高流量状态的测量精度。

公开(公告)号：US07004722B2

公开(公告)日：2006-02-28

申请号：US10636633

申请日：2003-08-08

Applicant: Minoru Teramura ,  Junji Takado ,  Gensuke Hoshino

Inventor： Minoru Teramura ,  Junji Takado ,  Gensuke Hoshino

IPC: F01D5/20

CPC classification number: F01D5/20 ,  F01D5/143 ,  F04D21/00 ,  F04D29/545 ,  F04D29/681

Abstract: At least part of the inner circumferential wall of the outer casing is provided with a concave surface opposing the rotor blade tips as seen in a longitudinal section. Typically, each of the rotor blades is provided with aerofoil section, and the compressor is designed as a transonic axial flow compressor. Thereby, a compressive wave is produced upstream of the shockwave so that the Mach number of the flow entering the shockwave can be reduced. As a result, the shockwave is made less severe, and the shockwave loss can be reduced. In particular, because the concave surface is provided in the casing wall as opposed to the case where the concave surface is provided in the negative pressure side of the rotor blade, the reduction in the performance owing to the change in the angle of the airflow entering the passage defined by the concave surface under a partial load condition can be avoided.

Abstract translation: 外壳的内周壁的至少一部分设置有与转子叶片尖端相对的凹表面，如在纵向截面中所见。 通常，每个转子叶片都设置有翼型部分，并且压缩机设计为跨音速轴流式压缩机。 由此，在冲击波的上游产生压缩波，能够减少进入冲击波的流量的马赫数。 结果，冲击波不那么严重，冲击波损耗可以降低。 具体而言，由于与转子叶片的负压侧设置有凹面的情况相比，在壳体壁上设置凹面，所以由于气流进入角度的变化而导致性能的降低 可以避免在局部负荷条件下由凹面限定的通道。

公开(公告)号：US06986639B2

公开(公告)日：2006-01-17

申请号：US10636622

申请日：2003-08-08

Applicant: Minoru Teramura ,  Junji Takado ,  Gensuke Hoshino

Inventor： Minoru Teramura ,  Junji Takado ,  Gensuke Hoshino

IPC: F03B11/04

CPC classification number: F01D5/142 ,  F01D5/141 ,  F04D21/00 ,  F04D29/544 ,  F05D2260/96

Abstract: In an axial flow compressor, an apical angle at a leading edge of a stator blade progressively increases from a root end to a tip of the stator blade whereby the stator blade loss and noises caused by unsteady inter-blade airflow can be minimized. Preferably, the apical angle at the tip of the stator blade is 1.5 to 2.5 times of the apical angle at the root of the stator blade.

Abstract translation: 在轴流式压缩机中，定子叶片的前缘处的顶角从根端逐渐增加到定子叶片的尖端，由此可以使定子叶片的损失和由不稳定的叶片间气流引起的噪声最小化。 优选地，定子叶片的尖端处的顶角是定子叶片根部处的顶角的1.5至2.5倍。

公开(公告)号：US06719528B2

公开(公告)日：2004-04-13

申请号：US10260422

申请日：2002-10-01

Applicant: Naoki Kuno ,  Gensuke Hoshino ,  Shuichi Honda ,  Toyotaka Sonoda

Inventor： Naoki Kuno ,  Gensuke Hoshino ,  Shuichi Honda ,  Toyotaka Sonoda

IPC: F01D904

CPC classification number: F01D5/145 ,  F01D5/141 ,  F01D9/041 ,  F05D2260/96 ,  Y02T50/673

Abstract: In a stator vane arrangement including a plurality of stator vanes axially opposing a plurality of rotor vanes in rotating machinery, each stator vane is tilted with respect to a radial line so that the load acting on the hub end of each stator vane is reduced and a secondary flow is minimized. This allows the aspect ratio of each stator vane to be reduced, and the number of stator vanes to be reduced without impairing the efficiency of the rotating machinery. This in turn allows the frequency of the oscillator force produced by the stator vane in relation with the motion of the rotor vanes to be lowered so that a resonant condition of the stator vanes can be avoided relatively easily.

Abstract translation: 在包括在旋转机械中与多个转子叶片轴向相对的多个定子叶片的定子叶片装置中，每个定子叶片相对于径向线倾斜，使得作用在每个定子叶片的轮毂端部上的负载减小， 二次流量最小化。 这允许减小每个定子叶片的纵横比，并且减少定子叶片的数量而不损害旋转机械的效率。 这又允许由定子叶片产生的振荡器力与转子叶片的运动相关的频率降低，从而能够相对容易地避免定子叶片的共振状态。