公开(公告)号：US06495845B1

公开(公告)日：2002-12-17

申请号：US09588232

申请日：2000-06-06

申请人： Kenichi Tsunota ,  Nobuyuki Yamada ,  Shinji Furuichi ,  Takeo Sasaki

发明人： Kenichi Tsunota ,  Nobuyuki Yamada ,  Shinji Furuichi ,  Takeo Sasaki

IPC分类号： G01T120

CPC分类号： G01T1/2018 ,  G01T1/2002

摘要： Sintered ceramics having such high radiation shielding capability and so easy to machine that they can be used as a radiation shield for radiation detectors are disclosed. The ceramics show a radiation shielding capability more than 90% and preferably have high light reflecting performance. They may comprises rare-earth oxides such as gadolinium oxide, oxide of at least one of vanadium, tantalum and niobium and alkali-earth oxide which is used for a sintering agent. They can be used as a radiation shield in place of a molybdenum or tungsten radiation shielding plate and also as a light reflecting film instead of titanium dioxide film in a radiation detector for radiation CT equipment.

摘要翻译： 公开了具有这样高的辐射屏蔽能力并且容易加工的烧结陶瓷，以使它们可以用作辐射探测器的辐射屏蔽。 陶瓷的辐射屏蔽能力大于90％，优选具有高的光反射性能。 它们可以包括稀土氧化物，例如氧化钆，钒，钽和铌中的至少一种的氧化物和用于烧结剂的碱土金属氧化物。 它们可以用作辐射屏蔽来代替钼或钨辐射屏蔽板，并且还可以用作辐射CT设备的辐射检测器中的二氧化钛膜的光反射膜。

公开(公告)号：US20100001215A1

公开(公告)日：2010-01-07

申请号：US12489069

申请日：2009-06-22

申请人： Katsuyuki SUZUKI ,  Gen KATO ,  Junichi MIYASHITA ,  Kenichi TSUNOTA

发明人： Katsuyuki SUZUKI ,  Gen KATO ,  Junichi MIYASHITA ,  Kenichi TSUNOTA

IPC分类号： F16K31/02

CPC分类号： F02M51/0678 ,  F02M51/0664 ,  F02M61/166 ,  F02M61/188 ,  F02M61/1886 ,  F02M61/1893 ,  F02M2200/9053

摘要： In an electromagnetic fuel injection valve, a valve housing includes: a cylinder-shaped valve seat member having a valve seat in its front end portion; a magnetic cylindrical body coaxially connected to a rear end portion of the valve seat member; a nonmagnetic cylindrical body coaxially and liquid-tightly welded to a rear end of the magnetic cylindrical body; and a hollow cylindrical stationary core coaxially and liquid-tightly welded to a rear end of the nonmagnetic cylindrical body. A valve assembly is housed in the valve housing and includes: a valve body capable of being seated on the valve seat; and a movable core connected to a rear end of the valve body and opposed to a front end of the stationary core. The valve body and the valve seat member are respectively made of different martensitic stainless steels so that a hardness of the valve body is higher than that of the valve seat member. Accordingly, it is possible to provide an electromagnetic fuel injection valve for alcohol fuel which is capable of preventing the adhesive wear from occurring in the seat portion while a valve body and a valve seat member made of martensitic stainless steel are used.

摘要翻译： 在电磁燃料喷射阀中，阀壳体包括：在其前端部分具有阀座的圆柱形阀座件; 与所述阀座部件的后端部同轴连接的磁性圆柱体; 一个非磁性圆筒体同轴并液密地焊接到磁性圆柱体的后端; 以及与非磁性圆柱体的后端同轴且液密地焊接的中空圆柱形固定芯。 阀组件容纳在阀壳体中，并且包括：能够安置在阀座上的阀体; 以及与阀体的后端连接并与固定铁芯的前端相对的可动铁芯。 阀体和阀座构件分别由不同的马氏体不锈钢制成，使得阀体的硬度高于阀座构件的硬度。 因此，可以提供一种用于酒精燃料的电磁燃料喷射阀，其能够防止在使用由马氏体不锈钢制成的阀体和阀座构件时在座部中发生粘合剂磨损。

公开(公告)号：US08662472B2

公开(公告)日：2014-03-04

申请号：US12489069

申请日：2009-06-22

申请人： Katsuyuki Suzuki ,  Gen Kato ,  Junichi Miyashita ,  Kenichi Tsunota

发明人： Katsuyuki Suzuki ,  Gen Kato ,  Junichi Miyashita ,  Kenichi Tsunota

IPC分类号： F16K31/02

CPC分类号： F02M51/0678 ,  F02M51/0664 ,  F02M61/166 ,  F02M61/188 ,  F02M61/1886 ,  F02M61/1893 ,  F02M2200/9053

摘要： In an electromagnetic fuel injection valve, a valve housing includes: a cylinder-shaped valve seat member having a valve seat in its front end portion; a magnetic cylindrical body coaxially connected to a rear end portion of the valve seat member; a nonmagnetic cylindrical body coaxially and liquid-tightly welded to a rear end of the magnetic cylindrical body; and a hollow cylindrical stationary core coaxially and liquid-tightly welded to a rear end of the nonmagnetic cylindrical body. A valve assembly is housed in the valve housing and includes: a valve body capable of being seated on the valve seat; and a movable core connected to a rear end of the valve body and opposed to a front end of the stationary core. The valve body and the valve seat member are respectively made of different martensitic stainless steels so that a hardness of the valve body is higher than that of the valve seat member. Accordingly, it is possible to provide an electromagnetic fuel injection valve for alcohol fuel which is capable of preventing the adhesive wear from occurring in the seat portion while a valve body and a valve seat member made of martensitic stainless steel are used.

摘要翻译： 在电磁燃料喷射阀中，阀壳体包括：在其前端部分具有阀座的圆柱形阀座件; 与所述阀座部件的后端部同轴连接的磁性圆柱体; 一个非磁性圆筒体同轴并液密地焊接到磁性圆柱体的后端; 以及与非磁性圆柱体的后端同轴且液密地焊接的中空圆柱形固定芯。 阀组件容纳在阀壳体中，并且包括：能够安置在阀座上的阀体; 以及与阀体的后端连接并与固定铁芯的前端相对的可动铁芯。 阀体和阀座构件分别由不同的马氏体不锈钢制成，使得阀体的硬度高于阀座构件的硬度。 因此，可以提供一种用于酒精燃料的电磁燃料喷射阀，其能够防止在使用由马氏体不锈钢制成的阀体和阀座构件时在座部中发生粘合剂磨损。