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公开(公告)号：US20110297868A1
公开(公告)日：2011-12-08
申请号：US13150579
申请日：2011-06-01
申请人： Toshinari NISHIMURA
发明人： Toshinari NISHIMURA
IPC分类号： F16K13/00
CPC分类号： F01D17/145 , F01D17/18 , F05D2250/232 , F05D2250/241
摘要： It is intended to provide a steam valve, which can reduce vibrations of each part of the steam valve, can suppress pressure loss and can cut off the steam rapidly. The steam valve 1 changes an area of a flow path between the valve seat 4 and the valve body 2 and adjusts a flow of steam passing through the flow path by moving the valve body 2 relative to the valve seat 4. The valve body 2 satisfies a relationship of r>0.6D0, where r is a curvature radius of the valve head portion 2A and D0 is a seat diameter of the valve seat 4. A tapered portion 2B is provided on an upstream side of the valve head portion 2A and its surface is tilted toward a direction of relative movement of the valve body 2 to the valve seat 4 more than that of the valve head portion 2A.
摘要翻译： 旨在提供一种蒸汽阀，其可以减少蒸汽阀的每个部分的振动，可以抑制压力损失并且可以快速地切断蒸汽。 蒸汽阀1改变阀座4和阀体2之间的流路的面积，并且通过相对于阀座4移动阀体2来调节通过流路的蒸汽的流动。阀体2满足 关系r> 0.6D0，其中r是阀头部分2A的曲率半径，D0是阀座4的座直径。锥形部分2B设置在阀头部分2A的上游侧， 表面比阀头部分2A向阀体2相对于阀座4的相对运动方向倾斜。
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公开(公告)号：US20100006793A1
公开(公告)日：2010-01-14
申请号：US12309029
申请日：2007-03-12
CPC分类号： F16K27/00 , B23K10/027 , Y10S384/912 , Y10S384/913
摘要： The reliability of a valve gear in which a cobalt-based alloy is welded by plasma powder building-up welding is improved. Disclosed is a valve gear including a bearing 2 having a sliding surface against a valve shaft 1, the valve gear being characterized in that: a welded layer 12 made of a heat-resistant cobalt-based alloy, based on plasma powder building-up, is formed on the sliding surface against the valve shaft 1; and the welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio is a parameter indicating the penetration amount of the welding metal into the base metal, and means a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.
摘要翻译： 通过等离子体粉末堆积焊接焊接钴基合金的阀齿轮的可靠性提高。 公开了一种阀齿轮，其包括具有抵靠阀轴1的滑动面的轴承2，该阀齿轮的特征在于：基于等离子体粉末积聚的由耐热钴基合金制成的焊接层12， 形成在相对于阀轴1的滑动表面上; 并且焊接层12包括在轴承2的表面上形成的第一焊接层12a，其稀释比为5％至25％，第二焊接层12b形成在第一焊接层12a上，稀释比为50％ 或更低的第一焊接层12a的稀释比。 稀释比是表示焊接金属在基体金属中的渗透量的参数，是指通过B / Ax100（％）求出的值，其中A表示焊接金属的总量，B表示焊接金属的量 渗入贱金属。
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公开(公告)号：US20100032607A1
公开(公告)日：2010-02-11
申请号：US12311427
申请日：2008-05-01
申请人： Mao Takei , Toshinari Nishimura
发明人： Mao Takei , Toshinari Nishimura
IPC分类号： F16K25/00
摘要： Provided is a valve gear in which corrosion due to a potential difference does not occur and which can reduce the corrosion occurrence even when loads due to microvibrations are given. The valve gear according to the present invention comprises a valve stem 6 and a valve bush 7 that slidably supports the valve stem 6. The valve stem 6 is formed from a forged part made of a Ni-based superalloy and the valve bush 7 is formed from a cast part made of a Ni-based superalloy. The preferable surface roughness of a sliding surface of the valve stem 6 in contact with the valve bush 7 and the preferable surface roughness of a sliding surface of the valve bush 7 in contact with the valve stem 6 is 100 μm or less in units of Rz.
摘要翻译： 本发明提供一种不会发生由于电位差引起的腐蚀的阀齿轮，即使在由微振动引起的负载的情况下也能够减少腐蚀发生。 根据本发明的阀齿轮包括阀杆6和可滑动地支撑阀杆6的阀套7.阀杆6由由Ni基超级合金制成的锻造部件形成，并且形成阀衬套7 从由Ni基超级合金制成的铸件。 与阀套7接触的阀杆6的滑动面的优选表面粗糙度和与阀杆6接触的阀套7的滑动面的优选表面粗糙度为Rz为100um以下 。
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公开(公告)号：US08235357B2
公开(公告)日：2012-08-07
申请号：US12311427
申请日：2008-05-01
申请人： Mao Takei , Toshinari Nishimura
发明人： Mao Takei , Toshinari Nishimura
IPC分类号： F16K51/00
摘要： A valve gear in which corrosion due to a potential difference does not occur and which can reduce the corrosion occurrence even when loads due to microvibrations are given. The valve gear includes a valve stem and a valve bush that slidably supports the valve stem. The valve stem is formed from a forged part made of a Ni-based superalloy and the valve bush is formed from a cast part made of a Ni-based superalloy. The preferable surface roughness of a sliding surface of the valve stem in contact with the valve bush and the preferable surface roughness of a sliding surface of the valve bush in contact with the valve stem is 100 μM or less in units of Rz.
摘要翻译： 不会发生由于电位差引起的腐蚀的阀齿轮，即使在由于微振动引起的负载的情况下也能够减少腐蚀发生。 阀门齿轮包括阀杆和可滑动地支撑阀杆的阀套。 阀杆由由Ni基超合金制成的锻造部分形成，阀套由由Ni基超级合金制成的铸造件形成。 与阀套接触的阀杆的滑动面的优选表面粗糙度和与阀杆接触的阀套的滑动面的优选表面粗糙度为Rz为100μM以下。
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5.发明授权公开(公告)号：US08167270B2
公开(公告)日：2012-05-01
申请号：US12309029
申请日：2007-03-12
IPC分类号： F16K25/00
CPC分类号： F16K27/00 , B23K10/027 , Y10S384/912 , Y10S384/913
摘要： The invention improves reliability of a valve gear in which a cobalt-based alloy is welded by plasma power building up. The valve gear includes a bearing 2 having a sliding surface against a valve shaft 1. The valve gear having a welded layer 12 made of heat-resistant cobalt-based alloy, based on plasma powder building up, formed on the sliding surface against the valve shaft 1. The welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio indicates the penetration amount of the welding metal into the base metal, and is a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.
摘要翻译： 本发明提高了通过等离子体动力建立来焊接钴基合金的阀齿轮的可靠性。 阀齿轮包括具有与阀轴1相对的滑动面的轴承2.该阀齿轮具有由耐热钴基合金制成的焊接层12，该焊接层基于等离子体粉末积聚，形成在与阀 焊接层12包括形成在轴承2的表面上的稀释比为5〜25％的第一焊接层12a和形成在第一焊接层12a上的第二焊接层12b，稀释比为 50％以下的第一焊接层12a的稀释比。 稀释比表示焊接金属在基体金属中的渗透量，并且是通过B / A×100（％）得到的值，其中A表示焊接金属的总量，B表示焊接金属的渗透量 进入贱金属。
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