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41. 发明公开

EP2821652A1 AIR INTAKE PIPE STRUCTURE FOR CENTRIFUGAL FLUID MACHINE 有权
标题翻译： LUFTANSAUGROHRSTRUKTURFÜRFLUIDZENTRIFGE
公开(公告)号：EP2821652A1
公开(公告)日：2015-01-07
申请号：EP13754588.5
申请日：2013-02-26
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： TOMITA, Isao , TOJO, Masaki , YOKOYAMA, Takao
IPC分类号： F04D29/44 , F02B37/00 , F04D29/66
CPC分类号： F04D29/4213 , F02B39/16 , F02M35/10124 , F02M35/10157 , F04D17/10 , F04D29/441 , F05D2220/40 , F05D2250/51 , Y02T10/144 , Y02T10/146
摘要： An object is to provide an air intake duct structure for a centrifugal fluid machine, capable of swirling the fluid introduced into the impeller in the reverse direction to increase the pressure ratio when the flow rate is high and swirling the fluid in the forward direction to avoid a surging when the flow rate is low, as well as securing a wide operating range, without using mechanical means. The centrifugal fluid machine 1 includes an impeller 12 mounted to a rotation shaft and a housing 4 for housing the impeller 12. The air intake duct structure 10 is for directing a fluid "f" to a rotational center 12a of the impeller 12 housed in the housing 4 via an intake duct portion 4a of the housing 4 protruding in an axial direction of the rotation shaft, the fluid "f" flowing in a substantially orthogonal direction to a rotational axis line 3. The air intake duct structure 10 comprises an inflow part 14 extending in the substantially orthogonal direction to the rotation axis line 3 and a transition part 16 connecting the inflow part 14 and the intake duct portion 14a of the housing 4. There is a virtual plane 20 orthogonal to the rotational axis line 3 and passing through a flow path cross-section of the inflow part 14, where an intersection 22 of the virtual plane 20 and the rotational axis line 3 is positioned within the transition part 16.
摘要翻译：本发明的目的是提供一种用于离心流体机械的进气管道结构，其能够相反地旋转引入叶轮的流体，以在流量高时增加压力比并且使流体沿正向旋转以避免当流量低时，波动，以及确保宽的工作范围，而不使用机械手段。离心流体机械1包括安装到旋转轴的叶轮12和用于容纳叶轮12的壳体4.进气管道结构10用于将流体“f”引导到容纳在叶轮12中的叶轮12的旋转中心12a。壳体4通过壳体4的沿旋转轴的轴向突出的进气管道部分4a，流体“f”沿与旋转轴线3大致正交的方向流动。进气管道结构10包括流入部分 14与旋转轴线3大致正交的方向延伸，以及连接壳体4的流入部14和进气导管部14a的过渡部16.与旋转轴线3正交且通过的虚拟平面20 流入部分14的流路横截面，其中虚拟平面20和旋转轴线3的交点22位于过渡部分16内。

42. 发明公开

EP2690290A1 SCROLL SHAPE OF CENTRIFUGAL COMPRESSOR 有权
标题翻译：离心式压缩机的滚动形状
公开(公告)号：EP2690290A1
公开(公告)日：2014-01-29
申请号：EP12763192.7
申请日：2012-01-27
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： TOMITA, Isao , SHIRAISHI, Takashi , IWAKIRI, Kenichiro
IPC分类号： F04D29/44
CPC分类号： F04D29/4206 , F04D29/403 , F04D29/4226 , F04D29/441 , F04D29/681 , F05D2250/52
摘要： In a scroll shape of a centrifugal compressor, an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion 12 to a radius R from an axis L1 of a compressor impeller 3 to a centroid P 0 of a cross section of the scroll portion is reduced from a winding start to a winding end of the scroll portion.
摘要翻译：在离心压缩机的涡旋形状中，涡旋部12的截面积A与从压缩机叶轮3的轴线L1到十字形的重心P0的半径R之比A / R的放大率涡旋部分的截面从涡卷部分的卷绕开始减少到卷绕结束。

43. 发明公开

EP2618003A1 IMPELLER FOR CENTRIFUGAL COMPRESSOR 有权
标题翻译：离心式压缩机用叶轮
公开(公告)号：EP2618003A1
公开(公告)日：2013-07-24
申请号：EP11852453.7
申请日：2011-12-06
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： TOMITA, Isao , HOSHI, Toru , KANZAKA, Tadashi
IPC分类号： F04D29/30
CPC分类号： F04D17/10 , F04D29/284 , F04D29/30
摘要： Provided is a centrifugal compressor impeller which is characterized in that leading edges 7a on a shroud side of splitter blades 7 are offset from a circumferentially equidistant position between full blades 5R and 5F toward a suction side Sb of the full blade 5F, and trailing edges 7b on a hub side of the splitter blades 7 are offset from a circumferentially equidistant position between the full blades toward the suction side Sb of the full blade 5F, so that a tip leakage vortex W flowing from a tip clearance between the tips of the full blades 5F and the shroud toward the leading edges 7a of the splitter blades 7 flows over the leading edges 7a of the splitter blades 7.
摘要翻译：提供了一种离心式压缩机叶轮，其特征在于，分流叶片7的护罩侧的前缘7a从全叶片5R和5F之间的周向等距离的位置朝向全叶片5F的吸入侧Sb偏移，并且后缘7b 在分割叶片7的轮毂侧从全叶片向全叶片5F的吸入侧Sb的周向等间隔的位置偏移，从而从全叶片的前端之间的叶顶间隙流出的叶尖泄漏涡流W 5F和护罩朝向分流叶片7的前缘7a流过分流叶片7的前缘7a。

44. 发明公开

EP2589819A1 SCROLL STRUCTURE OF CENTRIFUGAL COMPRESSOR 有权
标题翻译： ZENTRIFUGALVERDICHTER MITSPIRALGEHÄUSE
公开(公告)号：EP2589819A1
公开(公告)日：2013-05-08
申请号：EP11854033.5
申请日：2011-12-22
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： HOSHI, Toru , TOMITA, Isao , EBISU, Motoki , SUZUKI, Hiroshi , SHIRAISHI, Takashi
IPC分类号： F04D29/44
CPC分类号： F01D25/24 , F04D29/441 , F04D29/681 , F05D2250/52
摘要： In a scroll structure of a centrifugal compressor, there are provided a radius increase arc portion E in which a radius from the center of a scroll 12 to a scroll centroid P of the cross section of the scroll 12 is gradually increased in any range in a circumferential direction from the start of winding of the scroll, and a radius decrease arc portion F in which the radius is gradually decreased toward a scroll end point Z.
摘要翻译：在离心式压缩机的涡旋结构中，设置有半径增加弧部E，其中，涡旋件12的横截面的涡旋件12的中心到涡旋中心P的半径在从涡卷的卷绕开始的圆周方向，半径减小弧部F朝向涡旋端点Z逐渐减小。

45. 发明公开

EP2428684A1 IMPELLER FOR CENTRIFUGAL COMPRESSOR 有权
标题翻译： ANTRIEBSELEMENTFÜREINEN ZENTRIFUGALVERDICHTER
公开(公告)号：EP2428684A1
公开(公告)日：2012-03-14
申请号：EP10834418.5
申请日：2010-08-10
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： SUGIMOTO, Koichi , IWAKIRI, Kenichiro , TOMITA, Isao
IPC分类号： F04D29/30 , F04D29/66
CPC分类号： F04D29/284 , F04D29/30 , F04D29/681
摘要： Providing an impeller of a centrifugal compressor wherein the interference of the leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade can be evaded and the high pressure ratio and the enhanced efficiency can be achieved. An impeller wherein a throat SR is formed so that a distance from a leading edge 5a of a rear side full blade 5R located on the rear side of the rotation direction of the compressor to a front side full blade 5F adjacent to the rear side full blade 5R and located on the front side of the rotation direction is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the mutually adjacent full blades, on the downstream side of a leakage vortex line WL formed to connect the middle location P of the throat to the leading edge 7a of the front side full blade 7.
摘要翻译：提供离心压缩机的叶轮，其中可以避免在全叶片的尖端侧产生的泄漏涡流与分流叶片的前缘的干扰，并且可以实现高压比和提高的效率。一种叶轮，其中喉部SR形成为与位于压缩机的旋转方向后侧的后侧全叶片5R的前缘5a到与后侧全叶片相邻的前侧全叶片5F的距离 5R并且位于旋转方向的前侧上，分流叶片的前缘被放置在沿着相互相邻的完整叶片之间的流动通道流动的流体流中，在泄漏涡流线WL的下游侧形成为将喉部的中间位置P连接到前侧全刀片7的前缘7a。

46. 发明公开

EP2078866A1 VARIABLE DIFFUSER AND COMPRESSOR 审中-公开
标题翻译： VARIABLER DIFFUSOR UND KOMPRESSOR
公开(公告)号：EP2078866A1
公开(公告)日：2009-07-15
申请号：EP07708290.7
申请日：2007-02-09
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： HIGASHIMORI, Hirotaka , TOMITA, Isao , SHIRAISHI, Takashi
IPC分类号： F04D29/46
CPC分类号： F04D29/462 , F04D29/464 , F05D2250/52
摘要： There is provided a variable diffuser for a compressor in which the efficiency can be further improved. In a variable diffuser 30 in which a diffuser passage 33, which restores a static pressure from a dynamic pressure by decelerating an air flow that is discharged from an outer peripheral end of an impeller that rotates within a housing, is formed between a hub side wall 32a and a shroud side wall 31a, and diffuser vanes are provided in the diffuser passage 33, fixed vanes 35 and movable vanes 34 that are the diffuser vanes, are alternately fixed in the circumferential direction to a fixed circular plate 32 and a movable circular plate 31 that form the hub side wall 32a and the shroud side wall 31a, and there is provided a driving device 40 that turns the movable circular plate 31 about the same axis as the rotation of the impeller.
摘要翻译：为压缩机提供可变扩散器，其中可以进一步提高效率。在可变扩散器30中，其中扩散通道33通过使从外壳内旋转的叶轮的外周端排出的空气流减速而从动态压力恢复静压，形成在毂侧壁 32a和护罩侧壁31a以及扩散器叶片设置在扩散通路33中，作为扩散器叶片的固定叶片35和可动叶片34沿圆周方向交替地固定到固定圆板32和可动圆板 31，其形成毂侧壁32a和护罩侧壁31a，并且设置有驱动装置40，其使可动圆板31绕与叶轮的旋转相同的轴线旋转。

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