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1. 发明授权

US06395159B2 Oxygen sensor 有权
标题翻译：氧传感器
公开(公告)号：US06395159B2
公开(公告)日：2002-05-28
申请号：US09143384
申请日：1998-08-28
申请人： Kouji Matsuo , Satoshi Ishikawa , Shoji Akatsuka , Shoichi Ohtsuki , Takashi Mizukusa , Hiromichi Hayashi
发明人： Kouji Matsuo , Satoshi Ishikawa , Shoji Akatsuka , Shoichi Ohtsuki , Takashi Mizukusa , Hiromichi Hayashi
IPC分类号： G01N27407
CPC分类号： G01N27/407
摘要： An oxygen sensor is constituted by a ceramic separator being placed so that the rear thereof enters the inside of a filter holding part and the front enters the inside of a casing and formed with a plurality of lead insertion holes axially penetrating the ceramic separator and an elastic seal member being fitted elastically into a rear opening of the filter holding part and having seal lead insertion holes for inserting leads for sealing the gap between the outer faces of the leads and the inner face of the filter holding part. The rear end face of the ceramic separator is positioned on the rear side behind a gas introduction hole in the axial direction and a predetermined gap is formed between the elastic seal member and the ceramic separator at least at the lead insertion position.
摘要翻译：氧传感器由陶瓷分离器构成，其后部进入过滤器保持部分的内部，前部进入壳体内部，并形成有多个引导插入孔，其轴向穿透陶瓷分离器，弹性体密封构件弹性地装配到过滤器保持部的后开口中，并且具有用于插入用于密封引线的外表面和过滤器保持部的内表面之间的间隙的引线的密封引线插入孔。陶瓷分离器的后端面位于气体导入孔的后方，在轴向后方，至少在引线插入位置，在弹性密封部件与陶瓷分离器之间形成规定的间隙。

2. 发明授权

US06360581B1 Gas sensor and method for manufacturing the same 有权
标题翻译：气体传感器及其制造方法
公开(公告)号：US06360581B1
公开(公告)日：2002-03-26
申请号：US09324186
申请日：1999-06-02
申请人： Masaaki Murase , Takashi Mizukusa
发明人： Masaaki Murase , Takashi Mizukusa
IPC分类号： G01N27407
CPC分类号： G01N27/407
摘要： A gas sensor 1 includes a casing 10 which covers a sensing element 2 and includes two cylindrical members. The cylindrical members are axially disposed in such a manner as to overlap each other. Examples of the cylindrical members are a protector 11 (outer member) and a protector attachment portion 9a (inner member) of a metallic shell 9. A diameter-reduced portion 81 is circumferentially formed on the outer member 11 through, for example, caulking. A weld zone 83 is circumferentially formed at the diameter-reduced portion 81 so as to weld the outer member 11 onto the inner member 9a. Through formation of the diameter-reduced portion 81, a gap between the outer member 11 and the inner member 9a as measured at the position of the weld zone is reduced, thereby improving adhesion therebetween. As a result, possibility of a weld defect arising can be suppressed. Further, attainment of a good welded state does not require the practice of dimensional control of the inner and outer members; particularly, strict dimensional control of the difference between the bore diameter of the outer member and the outside diameter of the inner member. Hence, production efficiency or yield of gas sensors is improved.
摘要翻译：气体传感器1包括覆盖感测元件2并且包括两个圆柱形构件的壳体10。圆柱形构件以彼此重叠的方式轴向设置。圆柱形构件的例子是金属壳体9的保护器11（外部构件）和保护器安装部分9a（内部构件）。直径减小部分81通过例如填缝在周向上形成在外部构件11上。焊接区域83在直径减小部分81周向地形成，以便将外部构件11焊接到内部构件9a上。通过形成直径减小部分81，在焊接区域的位置处测量到的外部构件11和内部构件9a之间的间隙减小，从而改善了它们之间的粘附性。结果，可以抑制发生焊接缺陷的可能性。此外，获得良好的焊接状态不需要内部和外部构件的尺寸控制的实践; 特别是对外部构件的孔径与内部构件的外径之间的差异进行严格的尺寸控制。因此，提高了气体传感器的生产效率或产量。

3. 发明授权

US4922949A Rotary valve made of ceramics 失效
标题翻译：陶瓷旋转阀
公开(公告)号：US4922949A
公开(公告)日：1990-05-08
申请号：US300838
申请日：1989-01-24
申请人： Takashi Mizukusa , Juzo Yagi
发明人： Takashi Mizukusa , Juzo Yagi
IPC分类号： F16K5/06 , F16K25/00
CPC分类号： F16K5/0657 , F16K25/005
摘要： A rotary valve made of ceramics has edges at the junctions between a generally cylindrical outer periphery and opposite ends of a through hole. Each of the edges has a leading edge portion at which the valve starts opening and a leading edge portion at which the valve finishes closing. The leading edge portions are chamferred in such a way as to form part of surfaces of right circular cones whose vertexes are contained in an axis of rotation of the rotary valve and whose axes coincide with the center axis of the through hole.
摘要翻译：由陶瓷制成的旋转阀在大致圆柱形的外周和通孔的相对端之间的接合处具有边缘。每个边缘具有阀开始打开的前缘部分和阀完成关闭的前缘部分。前缘部分以这样的方式倒角，以形成右圆锥体的表面的一部分，其顶点被包含在旋转阀的旋转轴线中，并且其轴线与通孔的中心轴线重合。

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