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    • 1. 发明专利
    • Centrifugal pump
    • 离心泵
    • JP2007056687A
    • 2007-03-08
    • JP2005239756
    • 2005-08-22
    • Hiroshi KamiyoshiMitsubishi Heavy Ind Ltd三菱重工業株式会社博 神吉
    • MITSUTA KIMIHIKOOSADA TOSHIYUKIYAMAMOTO YASUHARUKAKIUCHI YOHEISANO TAKASHIYAMASHITA KATSUYAYOSHIDA ZENICHIKAMIYOSHI HIROSHI
    • F04D29/046F04D15/00
    • PROBLEM TO BE SOLVED: To provide a centrifugal pump in which unpredicted vibration generated in the axial direction of a spindle is effectively reduced.
      SOLUTION: A thrust collar 20 fixed to the spindle 2 as a thrust bearing mechanism is held in a rear side bearing box 15 formed integrally with a casing. A thrust bearing 21 held by a carrier ring 22 finely movably in the axial direction is disposed in the bearing box 15. A ring 22 is biased by a disc spring 24 between a disk-like liner 23 fixed thereto and an annular member 25 fixed to the bearing box 15. The disc spring 24 is stored in a space 40 formed by the inner surface of the liner 23, the inner surface of the tubular member 25, the outer peripheral surface of a second tubular projected part 25a, and the inner peripheral surface of a third tubular projected part 25b. The internal volume of the space 40 is changed due to the fine movement by the axial vibration of the spindle 2. A passage formed of a first fine clearance 41 between the inner peripheral surface of a first tubular projected part 23a and the outer peripheral surface of a third tubular projected part 25b communicates with the space 40 and is filled with a lubricating oil.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种离心泵,其中有效地减少了在主轴的轴向上产生的不可预测的振动。 解决方案:作为推力轴承机构固定在主轴2上的止推环20被保持在与壳体一体形成的后侧轴承箱15中。 由承载环22在轴向方向上可移动地保持的止推轴承21设置在轴承箱15中。环22通过碟形弹簧24偏置在固定于其上的盘状衬垫23和固定到 圆盘弹簧24储存在由衬套23的内表面,管状构件25的内表面,第二管状突出部25a的外周面和内周面形成的空间40中 第三管状突出部25b的表面。 空间40的内部体积由于主轴2的轴向振动的细微移动而变化。在第一筒状突起部23a的内周面与第一筒状突出部23a的内周面之间的第一细间隙41形成的通路与 第三管状突出部25b与空间40连通并填充有润滑油。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Fuel injection pump
    • 燃油喷射泵
    • JP2013151902A
    • 2013-08-08
    • JP2012013219
    • 2012-01-25
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • FUKAO SHINJIMITO RYOSUKESANO TAKASHI
    • F02M59/26F02M59/44
    • PROBLEM TO BE SOLVED: To provide a fuel injection pump capable of effectively suppressing erosion generated caused by cavitation generated in fuel discharged from a plunger barrel to an inlet/outlet fuel chamber in a fuel injection pump of a diesel engine or others.SOLUTION: In an fuel injection pump 1 having a cylindrical plunger barrel 2 formed by an inlet/outlet port 11 passing through, a plunger 3 defining a plunger chamber 21 with the plunger barrel 2, and an inlet/outlet fuel chamber 4 and carrying out fuel supply and fuel discharge by the reciprocating movement of the plunger 3, a solid deflector 40 extending to the plunger 3 side is arranged in the inlet/outlet port 11, a step is formed in the plunger chamber 21 side more than a reed 31 in the plunger 3, an inclining part 34 with a step angle of 45° or less in a crosssection including a center axis of the plunger is formed in the step.
    • 要解决的问题:提供一种燃料喷射泵,其能够有效地抑制由从柱塞筒排出的燃料中产生的气蚀产生的侵蚀产生到柴油发动机或其他燃料喷射泵中的入口/出口燃料室。解决方案: 具有由通过的入口/出口11形成的圆柱形柱塞筒2的燃料喷射泵1,与柱塞筒2限定柱塞室21的柱塞3和进入燃料供应的入口/出口燃料室4, 通过柱塞3的往复运动的燃料排出,延伸到柱塞3侧的固体偏转器40布置在入口/出口11中,在柱塞室21侧形成比柱塞3中的钢筘31更多的台阶 在该步骤中形成在包括柱塞的中心轴线的横截面中具有45°或更小的阶梯角的倾斜部分34。
    • 5. 发明专利
    • Impeller and turbo machine including the same
    • 叶轮和涡轮机包括它
    • JP2012202260A
    • 2012-10-22
    • JP2011065835
    • 2011-03-24
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IINO MASANARISANO TAKASHIFUKUDA NOBUHIDEMAEKAWA MASATAKE
    • F04D29/24F04D29/22
    • PROBLEM TO BE SOLVED: To provide an impeller including a blade structure to avoid lowering of performance of a turbo machine and to enhance energy conversion efficiency.SOLUTION: In this impeller 1, a plurality of blades 6 extending to a rotating direction rear side toward the radial direction outside from a rotary shaft center are arranged at intervals in a peripheral direction, and a main flow passage 15 in which a main flow W flows is formed between the blades 6 adjacent to each other in the peripheral direction toward the radial direction outside. The impeller 1 includes; an inflow hole 8 opened in each of the blades 6; an outflow hole 9 opened in a portion at the radial direction outside of the inflow hole 8 in the blade 6; and a boosting chamber 14 which is formed in the blade 6, is connected to the inflow hole 8 and the outflow hole 9 and has larger cross-sectional area orthogonal to a flowing direction of auxiliary fluid W2 flowing at the inside than that of at least one of the inflow hole 8 and the outflow hole 9.
    • 要解决的问题:提供一种包括叶片结构的叶轮,以避免降低涡轮机的性能并提高能量转换效率。 解决方案:在该叶轮1中,沿圆周方向间隔设置有从旋转轴中心向外侧向旋转方向后方向外侧延伸的多个叶片6,主流路15 主流W流动形成在沿径向外侧的周向的彼此相邻的叶片6之间。 叶轮1包括: 在每个叶片6中敞开的流入孔8; 在叶片6的流入孔8的外侧的径向部分开口的流出孔9; 并且形成在叶片6中的增压室14连接到流入孔8和流出孔9,并且具有与至少在内侧流动的辅助流体W2的流动方向正交的较大的横截面面积 一个流入孔8和流出孔9.版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Centrifugal rotary machine
    • 离心旋转机
    • JP2012177321A
    • 2012-09-13
    • JP2011040010
    • 2011-02-25
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • HIGUCHI TAKAFUMISANO TAKASHIIINO MASANARINANBU KAZUYUKIOKAMOTO GO
    • F04D29/46
    • F04D29/428
    • PROBLEM TO BE SOLVED: To suppress deterioration in the performance of a centrifugal rotary machine when the flow rate of working fluid deviates from operation specifications.SOLUTION: A centrifugal rotary machine M1 includes an impeller 21 which rotates on an axis P, and a scroll 20 which covers an exit 12x2 side for a working fluid W, of the impeller 21 over the entire circumferential area and has, inside the scroll 20, a swirl flow passage 21 in which the working fluid W swirls in the circumferential direction and a communicating flow passage 22 connected to the swirl flow passage 21 and making the impeller 12 and an external flow passage communicate with each other with the swirl flow passage 21 interposed between them. The centrifugal rotary machine includes an adjusting mechanism 30 which varies the size of cross section of a throat 21s being a boundary between the swirl flow passage 21 and communicating flow passage 22 in a direction orthogonal to the flowing direction of the working fluid W.
    • 要解决的问题:为了抑制当工作流体的流量偏离操作规格时离心式旋转机械的性能的劣化。 解决方案:离心式旋转机M1包括在轴线P上旋转的叶轮21和在整个圆周区域上覆盖叶轮21的工作流体W的出口12x2侧的涡旋件20,并且内部 涡卷20,工作流体W在周向上旋转的旋流流路21和与旋流流路21连接并使叶轮12与外流路连通的连通流路22, 插入其间的流路21。 离心式旋转机械包括:调节机构30,其在与工作流体W的流动方向正交的方向上改变作为涡流流路21和连通流路22之间的边界的喉部21s的截面尺寸。 >版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Cone, rotary structure, and fluid machine
    • CONE,旋转结构和流体机
    • JP2011247160A
    • 2011-12-08
    • JP2010120650
    • 2010-05-26
    • Mitsubishi Heavy Ind LtdShikoku Electric Power Co Inc三菱重工業株式会社四国電力株式会社
    • MAEKAWA MASATAKESANO TAKASHIMIYAGAWA KAZUYOSHIFUKUDA NOBUHIDEOKAWA KOSHIWATANABE HIROMIOKAMOTO NOBUAKIYANO HIROTSUGU
    • F03B3/02F03B11/04
    • Y02E10/223Y02E10/226
    • PROBLEM TO BE SOLVED: To prevent occurrence of vibration and noise by remarkably suppressing pulsation due to spiral vortex with a simple structure.SOLUTION: The rotary structure 10 has a flow passage 14 for a working fluid which is constituted so as to provide a rotary blade 12 around a rotary center axis P in a support member 11 whose outside diameter gradually decreases toward one side in the axial direction where a rotary center axis P is extended, wherein the fluid outlet 14b of the flow passage 14 is opened to the axial direction one side. A cone 15 is used for the rotary structure 10, is extended toward the axial direction one side in the diameter direction center part of the fluid outlet 14b and guides the working fluid W to the axial direction one side along the outer peripheral part 15a. A groove is provided along the rotary direction of the rotary structure 10 from the axial direction one side to another side in the outer peripheral part 15a, one end 15d side of the outer peripheral part 15a in the axial direction one side is extended toward the diameter direction outward side and the one end outside diameter Dof the outer peripheral part 15a is ≥0.25 times of the fluid outlet diameter Dand an angle formed by a virtual plane orthogonal to the axial direction and one end 15d of the outer peripheral part 15a is ≥75°.
    • 要解决的问题:通过以简单的结构显着地抑制螺旋涡流引起的脉动来防止振动和噪音的发生。 解决方案:旋转结构10具有用于工作流体的流动通道14,其构造成在支撑构件11中围绕旋转中心轴线P提供旋转叶片12,支撑构件11的外径在其中朝向一侧逐渐减小 其中旋转中心轴线P延伸的轴向方向,其中流动通道14的流体出口14b沿轴向方向一侧敞开。 锥形件15用于旋转结构10,在流体出口14b的直径方向中心部分的轴向方向一侧延伸,并且沿着外周部分15a将工作流体W沿轴向引导到轴向一侧。 沿着旋转结构体10的旋转方向从外周部15a的轴向一侧向另一侧设置有槽,外周部15a的轴向一侧的一端部15d侧朝向直径 外周部15a的方向外侧和一端外径D 1 是流体出口直径D 2 的0.25倍, SB“,并且由与外周部15a的轴向和一端15d正交的虚拟平面形成的角度为≥75°。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Fluid circulating structure
    • 流体循环结构
    • JP2011153576A
    • 2011-08-11
    • JP2010015865
    • 2010-01-27
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • SANO TAKASHIMORITSUGI TAKAHIROFUKUDA NOBUHIDE
    • F04D29/42F04D29/22
    • PROBLEM TO BE SOLVED: To supply a sufficient amount of fluid to a downstream side cavity from an upstream side cavity through a circulating passage even when swirl flow is generated in the upstream side cavity in a fluid circulating structure.
      SOLUTION: The upstream side cavity 31 in the shape of a ring around a rotary shaft 19 is formed on the back surface side of a final stage impeller 22d, while the downstream side cavity 32 in the shape of a ring around the rotary shaft 19 is formed on the back surface side of an intermediate stage impeller 21e, and a bypass passage 26 allowing the upstream side cavity 31 to communicate with the downstream side cavity 32 is formed. The swirl fluid of condensate swirling in the upstream side cavity 31 is constituted so as to flow to the downstream side cavity 32 through the bypass passage 26, and a swirl suppressing surface 35 is provided for suppressing the swirl by intersecting with a swirling direction of the swirl fluid to cause the swirl fluid to collide with the swirl suppressing surface 35.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使在流体循环结构中的上游侧空腔中产生涡流时,也能通过循环通道向下游侧空腔供给足够量的流体。 解决方案:围绕旋转轴19的环形的上游侧空腔31形成在最终级叶轮22d的背面侧,而围绕旋转轴的环形形状的下游侧空腔32 轴19形成在中间级叶轮21e的后表面侧,并且形成允许上游侧空腔31与下游侧空腔32连通的旁通通道26。 在上游侧空腔31内旋转的冷凝物的涡流构成为通过旁路通路26流向下游侧空腔32,设有旋转抑制面35,用于通过与旋转方向 漩涡流体使漩涡流体与涡流抑制表面35碰撞。版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Runner and fluid machine
    • 跑步机和流体机
    • JP2011052663A
    • 2011-03-17
    • JP2009204703
    • 2009-09-04
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MAEKAWA MASATAKESANO TAKASHIMIYAGAWA KAZUYOSHI
    • F03B3/12F03B3/02
    • Y02E10/223
    • PROBLEM TO BE SOLVED: To provide a runner and a fluid machine, suppressing a loss of fluid flowing between vanes to improve efficiency.
      SOLUTION: Each vane 12 of the runner 10 is so formed that the thickness thereof is gradually increased from one end 12a as the inlet 14a of a flow passage 14 toward a center so as to have the maximum thickness Tmax and also the thickness thereof is gradually reduced from a position P where the thickness is the maximum thickness Tmax toward the other end 12b as the outlet 14b of the flow passage 14. Thickness at the position P where the thickness is the maximum thickness Tmax is set to be 1.5 times or more the mean thickness.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供流道机和流体机械,抑制在叶片之间流动的流体的损失以提高效率。 解决方案:流道10的每个叶片12形成为使得其厚度从作为流动通道14的入口14a的一端12a逐渐增加到中心,以便具有最大厚度Tmax,并且厚度 作为流路14的出口14b,从作为最大厚度Tmax的厚度为最大厚度Tmax的位置P逐渐减小。厚度为最大厚度Tmax的位置P的厚度设定为1.5倍 或更多的平均厚度。 版权所有(C)2011,JPO&INPIT