Sensor element and method for determining gas components in gas mixtures, and use thereof

US8940144B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8940144-B2
Application numberUS-200913003487-A
CountryUS
Kind codeB2
Filing dateJun 25, 2009
Priority dateJul 10, 2008
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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Abstract

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A sensor element of a gas sensor for determining gas components in gas mixtures, having at least one electrochemical measuring cell which is formed by a ceramic substrate and electrodes placed thereon. The sensor element includes at least one interior chamber which is sealed in a gas-tight manner, in which at least one first internal electrode is positioned, which forms an electrochemical cell with each of a second and an additional electrode of the sensor element, one of the electrochemical cells being an electrochemical pump cell, and the second or other electrode being exposed to the measuring gas.

First claim

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What is claimed is: 1. A sensor element of a gas sensor for determining gas components in an exhaust gas of an internal combustion engine, comprising: a ceramic sensor body having at least one interior chamber which is sealed in a gas-tight manner, in which at least one first internal electrode is positioned, wherein the chamber is not in fluid-conducting contact with the exhaust gas; a second electrode, which, together with the first electrode in the chamber forms a first elect…

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What does patent US8940144B2 cover?
A sensor element of a gas sensor for determining gas components in gas mixtures, having at least one electrochemical measuring cell which is formed by a ceramic substrate and electrodes placed thereon. The sensor element includes at least one interior chamber which is sealed in a gas-tight manner, in which at least one first internal electrode is positioned, which forms an electrochemical cell …
Who is the assignee on this patent?
Liemersdorf Dirk, Classen Thomas, Sillmann Benjamin, and 1 more
What technology area does this patent fall under?
Primary CPC classification G01N27/419. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).