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31. 发明专利

DE10030939A1 未知
公开(公告)号：DE10030939A1
公开(公告)日：2002-01-17
申请号：DE10030939
申请日：2000-06-24
申请人： BOSCH GMBH ROBERT
发明人： LEHMANN DIETER , OEHLER GUDRUN , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/41 , G01N27/416 , G01N27/419
摘要： The invention relates to an electrode which on use can selectively pump O2 out of a gas mixture electrochemically, in the presence of other gas components containing oxygen, such as NOx. Said electrode comprises a Pt/Au electrode, the surface of which is impregnated with at least one compound of an alkali metal, an alkali earth metal, or a rare earth metal, preferably praseodymium. The electrode is produced whereby the Pt/Au electrode is brought into contact with a solution, which contains at least one compound of an alkali metal, alkali earth metal, or a rare earth metal, preferably praseodymium nitrate Pr(NO3)3) and the excess solution removed.

32. 发明专利

AT464557T 未知
公开(公告)号：AT464557T
公开(公告)日：2010-04-15
申请号：AT03019971
申请日：2003-09-03
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , SCHUMANN BERND , OCHS THORSTEN , SCHICHLEIN HELGE , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/407 , G01N27/419 , G01N33/00

33. 发明专利

DE50015719D1 未知
公开(公告)号：DE50015719D1
公开(公告)日：2009-10-01
申请号：DE50015719
申请日：2000-06-30
申请人： BOSCH GMBH ROBERT
发明人： STAHL ROLAND , BRINZ THOMAS , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/41 , G01N27/419 , G01N27/416
摘要： An electrochemical gas sensor and a method for determining the concentration of gaseous components in a gas mixture, particularly of NOx in exhaust gases of internal combustion engines. The gas sensor includes a first measuring-gas compartment which is in communication with the measuring gas, and two additional measuring-gas compartments which are connected to the first measuring-gas compartment via diffusion barriers. The first measuring-gas compartment contains a first pump cell which, with the aid of pump electrodes arranged on a solid electrolyte, transports oxygen into and out of the measuring-gas compartment. The second and third measuring-gas compartments contain further pump cells, the second measuring-gas compartment being used for measuring the oxygen concentration of the mixture, and the third measuring-gas compartment being used for measuring the sum of the oxygen concentration and the concentration of the gaseous component in the gas mixture. The pump current measured between two pump electrodes arranged on a solid electrolyte is used by both amperometric measuring pump cells as a measured quantity, and a measuring signal proportional to the concentration of the gaseous component to be determined is obtained through subtraction of both pump currents.

34. 发明专利

AT383574T 未知
公开(公告)号：AT383574T
公开(公告)日：2008-01-15
申请号：AT00918696
申请日：2000-03-11
申请人： BOSCH GMBH ROBERT
发明人： BLOEMER BERNHARD , STROHMAIER RAINER , SPRINGHORN CARSTEN , HEIMANN DETLEF , RENZ HANS-JOERG , NEUMANN HARALD , SCHUELE MARGRET , SCHUMANN BERND , MOSER THOMAS , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/41 , G01N27/417 , G01N27/30 , G01N27/416 , G01N27/419
摘要： An electrochemical gas sensor for determining the concentration of gas components in a gas mixture, in particular for determining NOx and HC. The gas sensor includes a first measuring gas space which is connected to the measuring gas, and a second measuring gas space which is connected to the first measuring gas space by a connecting channel. Furthermore, a first electrode and a second electrode, arranged in the first measuring gas space, and at least one third electrode arranged in the second measuring gas space, and at least one fourth electrode are provided. The two measuring gas spaces are arranged in layer planes on top of one another and are separated from one another by at least one oxygen ion conducting layer, the connecting channel passing through the oxygen ion conducting layer.

35. 发明专利

DE102006017172A1 未知
公开(公告)号：DE102006017172A1
公开(公告)日：2007-10-18
申请号：DE102006017172
申请日：2006-04-12
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , SCHUMANN BERND , THIEMANN-HANDLER SABINE , ZIEGLER JOERG , ROESSLER MARIO
IPC分类号： G01N27/12

36. 发明专利

DE102005047636A1 未知
公开(公告)号：DE102005047636A1
公开(公告)日：2007-04-12
申请号：DE102005047636
申请日：2005-10-05
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , SCHUMANN BERND , OCHS THORSTEN , SCHICHLEIN HELGE , THIEMANN-HANDLER SABINE
IPC分类号： G01K7/16 , G01N27/407

37. 发明专利

DE102005047443A1 Gas sensor, has electrodes comprising respective high and low activities, where effect on activity with respect to oxidation or reduction of gas component is calibrated at electrodes by free oxygen present in measuring gas mixture 未知
公开(公告)号：DE102005047443A1
公开(公告)日：2007-04-05
申请号：DE102005047443
申请日：2005-09-30
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , THIEMANN-HANDLER SABINE , ROESLER MARIO
IPC分类号： G01N27/407
摘要： The sensor (1) has a solid electrolyte (2) connecting two electrodes (3, 4) in an ion-conducting manner, where the electrodes have similar gas-sensitive base material e.g. gold. The electrode has a high activity with respect to oxidation or reduction of a gas component to be sensed and another electrode has a low activity, where the effect on the activity with respect to oxidation or reduction of the gas component is calibrated at the electrodes by free oxygen present in a measuring gas mixture.

38. 发明专利

DE102005018438A1 未知
公开(公告)号：DE102005018438A1
公开(公告)日：2006-10-26
申请号：DE102005018438
申请日：2005-04-21
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , SCHUMANN BERND , OCHS THORSTEN , SCHICHLEIN HELGE , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/407 , F02D41/14
摘要： In order to operate an amperometric solid electrolyte sensor comprising a heating element which is separated from a sensor element by means of an electrical insulating layer, an electrical bias voltage is applied between the sensor element and the heater in such a way that the potential regions of the sensor element and the heater do not overlap.

39. 发明专利

DE102004061355A1 未知
公开(公告)号：DE102004061355A1
公开(公告)日：2006-07-06
申请号：DE102004061355
申请日：2004-12-21
申请人： BOSCH GMBH ROBERT
发明人： CRAMER BERNDT , SCHUMANN BERND , OCHS THORSTEN , SCHICHLEIN HELGE , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/407

40. 发明专利

DE10308395A1 Automotive exhaust gas sensing procedure removes hydrogen and carbon monoxide prior to determination of presence of third gas to be oxidized 未知
公开(公告)号：DE10308395A1
公开(公告)日：2004-09-09
申请号：DE10308395
申请日：2003-02-27
申请人： BOSCH GMBH ROBERT
发明人： SCHUMANN BERND , OCHS THORSTEN , SCHICHLEIN HELGE , THIEMANN-HANDLER SABINE
IPC分类号： G01N27/419 , G01N27/407 , G01N27/416 , G01N33/00
摘要： A process determines the proportion of a specific gas to be oxidized, within a mixture of automotive exhaust gases. In a first stage, the process employs a gas sensor which first partly or wholly removes hydrogen or carbon monoxide from the exhaust gas sample. In a second stage, the concentration of a third gas is measured in a sample from which nitric oxides, carbon monoxide and/or hydrogen has been removed. The secondary electrodes within the sensor reduce most of the nitric oxides, and remove most of the hydrogen or carbon monoxide from the mixture. An independent claim is included for an automotive exhaust gas sensor assembly for use in the above method with an operating voltage of 350 - 500 mV for hydrogen and/or carbon monoxide, and 400 - 600 mV for nitric oxide.

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