公开(公告)号：EP1215489A1

公开(公告)日：2002-06-19

申请号：EP01204817.9

申请日：2001-12-10

Applicant: Delphi Technologies, Inc.

Inventor： Wang, Da Yu ,  Kikuchi, Paul Casey ,  Symons, Walter Thomas ,  Polikarpus, Kaius Kiiren ,  Oberdier, Larry M.

IPC: G01N27/407 ,  G01N27/419

CPC classification number: G01N27/419

Abstract: A gas sensor is disclosed comprising an oxygen pump cell having at least one exterior pump electrode (40, 42) and at least one interior pump electrode (44, 46) disposed on opposite sides of a first solid electrolyte layer (30). An emf cell having a first and second emf electrodes (50, 52) and first and second reference gas electrodes (54, 56) are disposed on opposite sides of a second solid electrolyte layer (32). At least one insulating layer (22) is in contact with the first and second emf electrodes (50, 52). At least one via hole (60, 62) is disposed through the first solid electrolyte layer (30). At least one air channel (80, 82) is disposed through at least one insulating layer (22). An air vent (84) is disposed in at least one insulating layer (24) in contact with the first and second reference gas electrodes (54, 56). A heater (934) is disposed in thermal communication with the sensor. And at least five electrical leads are in electrical communication with said sensor. A method of using a gas sensor is also disclosed.

Abstract translation: 公开了一种气体传感器，其包括具有至少一个外部泵电极（40,42）和设置在第一固体电解质层（30）的相对侧上的至少一个内部泵电极（44,46）的氧气泵电池。 具有第一和第二电极电极（50,52）和第一和第二参考气体电极（54,56）的电池单元设置在第二固体电解质层（32）的相对侧上。 至少一个绝缘层（22）与第一和第二电极电极（50,52）接触。 至少一个通孔（60,62）穿过第一固体电解质层（30）设置。 至少一个空气通道（80,82）穿过至少一个绝缘层（22）设置。 在与第一和第二参考气体电极（54,56）接触的至少一个绝缘层（24）中设置有通风口（84）。 加热器（934）被布置成与传感器热连通。 并且至少五个电引线与所述传感器电连通。 还公开了一种使用气体传感器的方法。

公开(公告)号：EP1215488A2

公开(公告)日：2002-06-19

申请号：EP01204714.8

申请日：2001-12-06

Applicant: Delphi Technologies, Inc.

Inventor： Clyde, Eric P. ,  Kikuchi, Paul Casey ,  Beckmeyer, Richard Frederick ,  Labarge, William J.

IPC: G01N27/407

CPC classification number: G01N27/4077

Abstract: An exhaust gas sensor (10) element having an electrochemical cell, a protective material (42) in fluid communication with the electrochemical cell, and a reactive inhibitive coating (28) disposed over the protective material (42). The reactive inhibitive coating (28) prevents the reaction of compounds with acides (e.g., phosphates) in the exhaust gas, which may form a dense glass layer on the outside of the gas sensor (10). The reactive inhibitive coating (28) is either an alkaline earth oxide ethoxide, and/or carbonate that is deposited on the gas sensor (10) to a thickness so as to preferably provide an excess of either the alkaline earth material.

Abstract translation: 具有电化学电池的废气传感器（10）元件，与所述电化学电池流体连通的保护材料（42）和设置在所述保护材料（42）上方的反应性抑制涂层（28）。 反应性抑制涂层（28）防止化合物与废气中的酸（例如磷酸盐）的反应，这可能在气体传感器（10）的外部形成致密的玻璃层。 反应性抑制涂层（28）是沉积在气体传感器（10）上的碱土金属氧化物和/或碳酸盐，以至优选提供过量的碱土金属材料。