公开(公告)号：US06346179B1

公开(公告)日：2002-02-12

申请号：US09368953

申请日：1999-08-05

申请人： Keisuke Makino ,  Shinya Awano ,  Mitsunori Oi ,  Takashi Nakao ,  Teppei Okawa

发明人： Keisuke Makino ,  Shinya Awano ,  Mitsunori Oi ,  Takashi Nakao ,  Teppei Okawa

IPC分类号： G01N27407

CPC分类号： G01N27/4077

摘要： A gas sensor including a detection element having a front-end portion, a detection portion formed at the front-end portion of the detection element, and a protector that covers the detection portion. The protector includes a first portion having a first sidewall and a second portion having a second sidewall disposed outside the first portion. The first sidewall has an axial front end and a tapering portion. The tapering portion is formed from the axial front end of the first sidewall. The side portion has a front-end surface provided with a first gas outlet, and the second portion has a front-end surface provided with a second gas outlet. Furthermore, at least one gas inlet is formed to the sidewall of the second portion opposite the tapering portion, and plural gas inlets are formed on the sidewall of the first portion.

摘要翻译： 一种气体传感器，包括具有前端部分的检测元件，形成在检测元件的前端部分的检测部分和覆盖检测部分的保护器。 保护器包括具有第一侧壁的第一部分和具有设置在第一部分外侧的第二侧壁的第二部分。 第一侧壁具有轴向前端和锥形部分。 锥形部分由第一侧壁的轴向前端形成。 侧部具有设置有第一气体出口的前端表面，并且第二部分具有设置有第二气体出口的前端表面。 此外，至少一个气体入口形成在与锥形部分相对的第二部分的侧壁上，并且多个气体入口形成在第一部分的侧壁上。