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51. 发明专利

BR0109352A 未知
公开(公告)号：BR0109352A
公开(公告)日：2002-12-03
申请号：BR0109352
申请日：2001-03-15
申请人： BOSCH GMBH ROBERT
发明人： STAHL ROLAND , HOETZEL GERHARD , NEUMANN HARALD , RIEGEL JOHANN , DIEHL LOTHAR
IPC分类号： F01N3/00 , F01N7/00 , F02D41/14 , G01N27/419 , H01M8/04 , G01N27/407 , G01N27/417
摘要： The invention describes a sensor element for determining the concentration of gas components in gas mixtures, in particular in exhaust gases of combustion engines. It includes at least one measured gas space (13) and at least one gas inlet opening (17) through which the gas mixture is conveyable to the measured gas space (13), and at least one diffusion barrier (12) arranged between the gas inlet opening (17) and measured gas space (13). The diffusion barrier (12) includes at least one layer (14, 14a, 14b) of catalytically active material for establishing equilibrium in the gas mixture.

52. 发明专利

DE19716173C2 未知
公开(公告)号：DE19716173C2
公开(公告)日：2000-05-04
申请号：DE19716173
申请日：1997-04-18
申请人： BOSCH GMBH ROBERT
发明人： NEUMANN HARALD , STRASSNER WALTER , DIEHL LOTHAR
IPC分类号： G01N27/409 , G01N27/26 , G01N27/407 , G01R31/02 , G01N27/416
摘要： A method for testing for leakage currents in an oxygen probe, in particular a planar lambda probe, having at least one heating element, one external electrode and one internal electrode, and a solid electrolyte arranged between the electrodes, a first voltage being applied to the heating element. A second voltage is applied to at least one of the electrodes, the second voltage being selected so that the potential difference between the electrode and at least one area of the heating element is positive.

53. 发明专利

DE19833087A1 Gas sensor for vehicle engine; has measuring electrode comprising platinum base with sintered porous layer and noble metal covering layer, applied in galvanic bath 未知
公开(公告)号：DE19833087A1
公开(公告)日：2000-01-27
申请号：DE19833087
申请日：1998-07-23
申请人： BOSCH GMBH ROBERT
发明人： NEUMANN HARALD , SCHNEIDER JENS STEFAN , RIEGEL JOHANN , STANGLMEIER FRANK , SCHUMANN BERND
IPC分类号： G01N27/409 , G01N27/407 , G01N27/416
摘要： The sensor is a modified Nernst-type lambda -sensor in the gas-stream. It comprises a measuring electrode (15) of solid electrolyte, providing an electrically-conducting base layer (25) e.g. of Pt-cermet. It is covered by a porous layer (16). A further layer (27) of noble metal lies in the pores. The base layer is made as the cathode of a galvanic bath and the porous layer is applied by sintering. An Independent claim is included for a method for manufacturing the sensor.

54. 发明专利

DE19832098A1 Oxygen probe used as a lambda probe for determining oxygen concentrations in I.C. engine exhaust gases has an adsorbent and-or absorbent material around or adjacent its reference electrode 未知
公开(公告)号：DE19832098A1
公开(公告)日：2000-01-27
申请号：DE19832098
申请日：1998-07-16
申请人： BOSCH GMBH ROBERT
发明人： SCHNEIDER JENS STEFAN , NEUMANN HARALD , STANGLMEIER FRANK , SCHUMANN BERND , MOSER THOMAS
IPC分类号： G01N27/409 , G01N27/407
摘要： An oxygen probe has an adsorbent and/or absorbent (17) around or adjacent a reference electrode (13). An oxygen probe has an outer electrode (12) exposed to the exhaust gas and a reference electrode (13) exposed to a reference atmosphere or to ambient air, an adsorbent and/or absorbent (17) being provided in a space surrounding or adjoining the reference electrode (13). Preferred Features: The adsorbent/absorbent is in the form of loose bulk powder, pellets, one or more rings or an interlayer in a seal packing which seals the reference electrode from the exhaust gas. The adsorbent/absorbent collects and/or binds penetrated H2O, CO, hydrocarbons or the like. The reference electrode or the reference-side fittings may comprise a material which supplies additional oxygen for combustion of penetrated exhaust gas or manufacturing residues and which is introduced in the form of a solution, pellets or a paste.

55. 发明专利

SE510190C2 未知
公开(公告)号：SE510190C2
公开(公告)日：1999-04-26
申请号：SE9403280
申请日：1994-09-29
申请人： BOSCH GMBH ROBERT
发明人： HOETZEL GERHARD , NEUMANN HARALD , STRASSNER WALTER , RIEGEL JOHANN
IPC分类号： G01N27/41 , G01N27/407 , G01N27/419 , G01N27/406
摘要： The invention relates to a measuring sensor having an internal pump oxygen reference atmosphere which, in turn, has a device for compensating pressure which is so dimensioned that, on the one hand, mechanical damage because of overpressure in the reference volume is reliably prevented and, on the other hand, external influences on the composition of the pumped measured gas atmosphere are substantially excluded. The device for compensating for pressure is so dimensioned according to the invention that the particle exchange between ambient air and gas to be measured is opposed by a resistance which is defined by the limit current principle.

56. 发明专利

DE59407482D1 未知
公开(公告)号：DE59407482D1
公开(公告)日：1999-01-28
申请号：DE59407482
申请日：1994-02-19
申请人： BOSCH GMBH ROBERT
发明人： HOETZEL GERHARD , NEUMANN HARALD , RIEGEL JOHANN
IPC分类号： G01N27/419 , G01N27/12 , G01N27/407
摘要： PCT No. PCT/DE94/00188 Sec. 371 Date Jan. 19, 1995 Sec. 102(e) Date Jan. 19, 1995 PCT Filed Feb. 19, 1994 PCT Pub. No. WO94/22007 PCT Pub. Date Sep. 29, 1994A method of determining at least one of gas constituents and gas concentrations of a gas mixture such as exhaust gas from an internal combustion engine includes producing a change in gas concentration of the gas mixture at a semiconductor gas sensor by pumping a variable supply of oxygen to the semiconductor gas sensor by means of a solid electrolyte pumping cell; detecting at least one reaction speed selected from the group consisting of adsorption speed and desorption speed caused by the change in gas concentration as a signal from the semiconductor gas sensor which is a reply function; evaluating the signal from the semiconductor gas sensor over time to provide a time response of the reply function; and comparing the time response of the reply function with a stored, standardized time response of different gas constituents whereby at least one of the gas constituents and the gas concentrations of the gas mixture are determined.

57. 发明专利

GB2283321B Electrochemical sensors for determining the oxygen content in gases 未知
公开(公告)号：GB2283321B
公开(公告)日：1997-11-26
申请号：GB9419603
申请日：1994-09-29
申请人： BOSCH GMBH ROBERT
发明人： HOETZEL GERHARD , STRASSNER WALTER , NEUMANN HARALD , RIEGEL JOHANN
IPC分类号： G01N27/41 , G01N27/407 , G01N27/419
摘要： The invention relates to a measuring sensor having an internal pump oxygen reference atmosphere which, in turn, has a device for compensating pressure which is so dimensioned that, on the one hand, mechanical damage because of overpressure in the reference volume is reliably prevented and, on the other hand, external influences on the composition of the pumped measured gas atmosphere are substantially excluded. The device for compensating for pressure is so dimensioned according to the invention that the particle exchange between ambient air and gas to be measured is opposed by a resistance which is defined by the limit current principle.

58. 发明专利

BR9500729A 未知
公开(公告)号：BR9500729A
公开(公告)日：1997-04-29
申请号：BR9500729
申请日：1995-02-22
申请人： BOSCH GMBH ROBERT
发明人： HOETZEL GERHARD , NEUMANN HARALD , STRASSNER WALTER , RIEGEL JOHANN
IPC分类号： G01N27/62

59. 发明专利

ITMI941926D0 未知
公开(公告)号：ITMI941926D0
公开(公告)日：1994-09-22
申请号：ITMI941926
申请日：1994-09-22
申请人： BOSCH GMBH ROBERT
发明人： HOETZEL GERHARD , NEUMANN HARALD , STRASSNER WALTER , RIEGEL JOHANN
IPC分类号： G01N27/419 , G01N27/406 , G01N27/407 , G01N27/409 , G01N2
摘要： The invention is directed to an arrangement for detecting the oxygen content in the exhaust gas of an internal combustion engine. The arrangement includes a concentration measuring cell operating pursuant to the Nernst principle. The concentration measuring cell has a measuring electrode, a solid electrolyte and a reference electrode and a series circuit which includes a direct voltage source and a series resistor. The series circuit connects the measuring electrode to the reference electrode. The measuring electrode communicates with the exhaust gas of the internal combustion engine and is connected to the reference electrode via the solid electrolyte. The reference electrode communicates with the reference gas volume. The reference gas volume is partitioned from the exhaust gas and from the ambient air so that a particle exchange between the reference gas volume and the exhaust gas as well as between the reference gas volume and the ambient air is at least made more difficult. The output voltage of the concentration measuring cell defines a measure for the difference of the oxygen concentrations in the exhaust gas of the engine and the reference gas volume. The output voltage of the direct voltage source and/or the value of the series resistance is so pregiven that an electric current Ip is always so directed that oxygen is transported from the exhaust gas to the reference gas volume independently of the output voltage of the concentration measuring cell. The current Ip flows in a current circuit including direct voltage source, series resistance and concentration measuring cell.

60. 发明专利

DE102007063282A1 未知
公开(公告)号：DE102007063282A1
公开(公告)日：2009-07-02
申请号：DE102007063282
申请日：2007-12-27
申请人： BOSCH GMBH ROBERT
发明人： JANOVSKY PHILIPP , SPEH ULRICH , KEIL STEFAN , ROETHLINGSHOEFER WALTER , EGERTER JUERGEN , NEUMANN HARALD , WERNER MARKUS , SCHLUCKWERDER HEIKE , HORNIG PETER , MAIHOEFER BERND , LEVERKOEHNE MARK , WESTPHAL FRANK , WEBER JOSEF
IPC分类号： H05K3/12 , H01C17/065 , H05K1/16
摘要： A method for manufacturing an electrical conductor by applying at least one paste, in particular a thick-film paste, to a substrate by a dispensing operation, wherein the paste is applied in at least one strand.

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