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公开(公告)号：EP2270258A2
公开(公告)日：2011-01-05
申请号：EP10006717.2
申请日：2010-06-29
申请人： Hitachi, Ltd.
发明人： Kojima, Yoshitaka , Arikawa, Hideyuki , Mebata, Akira , Doi, Hiroyuki , Toriya, Hajime , Narita, Kenjiro
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant.
摘要翻译： 一种用于密封装置的金属密封材料，其能够减小涡轮机的定子和转子之间的间隙。 用于涡轮机的定子和转子的密封装置中的金属密封材料包括表面层和由多孔金属层构成的下层，其中表面层的孔隙率小于下层的孔隙率; 表面层的孔隙率为60〜65％，下层的孔隙率为67〜75％以下， 并且多孔金属层具有0.3至3.0mm的厚度并且可以包括作为主要成分的MCrAlY合金，其中M是Ni和Co中的任一种或两者，以及h-BN作为固体润滑剂。
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公开(公告)号：EP2151545A2
公开(公告)日：2010-02-10
申请号：EP09167300.4
申请日：2009-08-05
申请人： Hitachi Ltd.
IPC分类号： F01D5/30
CPC分类号： F01D5/3053 , F01D5/3007 , F05D2250/312 , F05D2260/941
摘要： Disclosed is a turbine rotor blade 40a, 40b that is highly manufacturable and capable of reducing the stress caused by centrifugal force. The turbine rotor blade 40a includes: a vane portion 3 having a blade leading edge 21 which is positioned upstream in the distribution direction of working fluid, and a blade trailing edge 22 which is positioned downstream of the blade leading edge 21; and a blade base 5 portion which is extended unidirectionally on a base side of the vane portion 3 and engaged with a blade groove 6 formed in the outer circumference of a turbine rotor 8. The turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade leading edge 21 is different from the turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade trailing edge 22.
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公开(公告)号：EP0527554B1
公开(公告)日：1997-01-08
申请号：EP92305831.7
申请日：1992-06-24
申请人： HITACHI, LTD.
IPC分类号： F01D5/18
CPC分类号： F01D5/187 , F05D2260/2212
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公开(公告)号：EP2103823A2
公开(公告)日：2009-09-23
申请号：EP09002023.1
申请日：2009-02-13
申请人： Hitachi Ltd.
发明人： Inoue, Tomoaki , Hemmi, Makoto , Suzuki, Kenta , Toriya, Hajime , Murakami, Katsuhiro , Kawai, Koji
CPC分类号： F16C37/002 , F01D25/16 , F16C17/02 , F16C23/04 , F16C33/107 , F16C33/1085
摘要： An increase in the temperature of a sliding bearing can be suppressed even when the bearing is used under a high load. It is possible to reduce the temperature of the bearing and prevent the bearing from burning and being damaged. The bearing is divided into two and composed of a bearing liner 3; 103 and a bearing base metal 4; 104. The bearing liner is provided on an inner circumferential side of the bearing, and the bearing base metal 4; 104 is provided on an outer circumferential side of the bearing. A lower bearing liner 3a; 103a of the bearing liner 3; 103, which is located on a load-receiving side 3a; 103a, has a cooling groove formed in an outer circumferential surface thereof and extending along a circumferential direction thereof. A lubricant is cooled in the cooling groove 6, 7; 106and supplied to reduce the temperature of a shaft-sliding surface 16; 127 of the bearing. The lubricant that increases in temperature due to the cooling and has low viscosity is supplied to the bearing.
摘要翻译： 即使在高负载下使用轴承，也能够抑制滑动轴承的温度的升高。 可以降低轴承的温度，防止轴承燃烧和损坏。 轴承分为两部分，由轴承衬套3组成; 103和轴承母材4; 轴承衬套设置在轴承的内周侧，轴承母材4; 104设置在轴承的外周侧。 下轴承衬套3a; 103a的轴承衬套3; 103，位于负载接收侧3a; 103a具有形成在其外周面上并沿其周向延伸的冷却槽。 在冷却槽6,7中冷却润滑剂; 并且被提供以降低轴 - 滑动表面16的温度; 127的轴承。 由于冷却而导致的粘度升高的润滑剂被供给轴承。
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公开(公告)号：EP2151545A3
公开(公告)日：2012-12-19
申请号：EP09167300.4
申请日：2009-08-05
申请人： Hitachi Ltd.
IPC分类号： F01D5/30
CPC分类号： F01D5/3053 , F01D5/3007 , F05D2250/312 , F05D2260/941
摘要： Disclosed is a turbine rotor blade 40a, 40b that is highly manufacturable and capable of reducing the stress caused by centrifugal force. The turbine rotor blade 40a includes: a vane portion 3 having a blade leading edge 21 which is positioned upstream in the distribution direction of working fluid, and a blade trailing edge 22 which is positioned downstream of the blade leading edge 21; and a blade base 5 portion which is extended unidirectionally on a base side of the vane portion 3 and engaged with a blade groove 6 formed in the outer circumference of a turbine rotor 8. The turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade leading edge 21 is different from the turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade trailing edge 22.
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公开(公告)号：EP2463406A2
公开(公告)日：2012-06-13
申请号：EP12158240.7
申请日：2010-06-29
申请人： Hitachi Ltd.
发明人： Kojima, Yoshitaka , Arikawa, Hideyuki , Mebata, Akira , Doi, Hiroyuki , Toriya, Hajime , Narita, Kenjiro
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： The present invention relates to a steam turbine comprising a stator (2) and a rotor (1). A metal sealing material (5) being disposed in a gap between the stator (2) and the rotor (1) comprises a porous metal layer. The porous metal layer comprises a surface layer (51) directly coming into contact with a working fluid and a lower layer (52) lying under the surface layer (51), wherein the porosity of the surface layer (51) is smaller than the porosity of the lower layer (52).
摘要翻译： 本发明涉及一种包括定子（2）和转子（1）的汽轮机。 设置在定子（2）和转子（1）之间的间隙中的金属密封材料（5）包括多孔金属层。 多孔金属层包括直接与工作流体接触的表面层（51）和位于表面层（51）下方的下层（52），其中表面层（51）的孔隙率小于孔隙率 的下层（52）。
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公开(公告)号：EP2067930B1
公开(公告)日：2011-07-13
申请号：EP08170392.8
申请日：2008-12-01
申请人： Hitachi, Ltd.
IPC分类号： F01D11/00 , F01D11/08 , F01D11/02 , F16J15/16 , F16J15/447
CPC分类号： F01D11/02 , F01D11/001 , F01D11/08 , F05D2220/31 , F05D2250/182 , F05D2300/5024 , F16J15/162 , F16J15/445 , F16J15/4472
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公开(公告)号：EP2270258A3
公开(公告)日：2011-03-16
申请号：EP10006717.2
申请日：2010-06-29
申请人： Hitachi, Ltd.
发明人： Kojima, Yoshitaka , Arikawa, Hideyuki , Mebata, Akira , Doi, Hiroyuki , Toriya, Hajime , Narita, Kenjiro
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant.
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公开(公告)号：EP0471985B1
公开(公告)日：1996-01-03
申请号：EP91112042.6
申请日：1991-07-18
申请人： HITACHI, LTD.
发明人： Kuroda, Michio , Iizuka, Nobuyuki , Urushidani, Haruo , Kumata, Kazuhiko , Sato, Isao , Sasada, Tetsuo , Toriya, Hajime , Moritomo, Yoshikazu , Ishibashi, Yoji , Ohmori, Takashi , Azuhata, Shigeru
IPC分类号： F23R3/34
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