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1. 发明专利

JP2000065792A ELECTROCHEMICAL MEASURING SENSOR AND ITS USE 失效
公开(公告)号：JP2000065792A
公开(公告)日：2000-03-03
申请号：JP3013199
申请日：1999-02-08
申请人： BOSCH GMBH ROBERT
发明人： SCHNAIBEL EBERHARD , NEUMANN HARALD DR , RIEGEL JOHANN DR , DIEHL LOTHAR DR
IPC分类号： G01N27/419 , G01N27/417
摘要： PROBLEM TO BE SOLVED: To provide an electrochemical measuring sensor judging the concn. of a gas to be measured, for example, the concn. of oxygen by an electrochemical element wherein the defect of conventional technique is eliminated. SOLUTION: In the electrochemical measuring sensor judging the concn. of a gas to be measured by an electrochemical element containing a first solid electrolyte member equipped with an electrochemical pump cell and a gas space and a second solid electrolyte member equipped with an electrochemical sensor cell (Nernst cell) and constituted so that the surface of the first solid electrolyte member turned to the space of gas to be measured and a gas penetrating opening are covered with a porous protective layer, a layer 25 having high density or slight porosity to a protective layer 21 is attached to the porous protective layer 21.

2. 发明专利

JP2000180404A SENSOR ELEMENT FOR FINDING LAMBDA VALUE OF GAS MIXTURE AND PRODUCTION THEREOF 失效
公开(公告)号：JP2000180404A
公开(公告)日：2000-06-30
申请号：JP35467299
申请日：1999-12-14
申请人： BOSCH GMBH ROBERT
发明人： JACH OLAF , NEUMANN HARALD DR , DIEHL LOTHAR
IPC分类号： G01N27/41 , G01N27/417
摘要： PROBLEM TO BE SOLVED: To prevent such a trouble from occurring that the hole provided to the inner cylinder wall of a diffusion barrier is perfectly closed by a solid electrolyte material at a time of the formation of a gas inflow hole. SOLUTION: In a sensor element wherein inner and outer electrode are arranged on a solid electrolyte and the inner electrode is provided in the diffusion channel demarcated by a diffusion barrier and a gas inflow hole passes through a solid electrolyte sheet in the direction substantially vertical to the surface of the solid electrolyte sheet to communicate with the diffusion channel, the diffusion barrier 31 is arranged in the diffusion channel 30 at a place retreating from the inner wall of the gas inflow hole 25.

3. 发明专利

JP2000046789A OXYGEN SENSOR 失效
公开(公告)号：JP2000046789A
公开(公告)日：2000-02-18
申请号：JP19898599
申请日：1999-07-13
申请人： BOSCH GMBH ROBERT
发明人： SCHNEIDER JENS STEFAN , NEUMANN HARALD DR , STANGLMEIER FRANK , SCHUMANN BERND , MOSER THOMAS
IPC分类号： G01N27/409 , G01N27/407
摘要： PROBLEM TO BE SOLVED: To simply resolve the problem of a CSD(characteristic shift down) at low costs by providing an outer electrode exposed to the discharge side and a reference electrode exposed to a reference ambience and including an adsorbent and/or an absorbent in a chamber connected to the reference electrode. SOLUTION: This sensor has an outer electrode 12 of a noble metal of a catalyst at the outside of an end part where a cylindrical ceramic body 11 is exposed at the side of an exhaust gas. A reference electrode 13 is provided inside the ceramic body 11. The outer electrode 12 is coupled with a coupling line at the connection side by a coupling connection member 15 and the reference electrode 13 is coupled with the coupling line by a second coupling connection member 14. The coupling line is guided through a short pipe 20 at an end part at the connection side of the oxygen sensor. A protecting pipe 21 opened at the side of the exhaust gas encloses the end part of the oxygen sensor projecting into an exhaust gas pipe. The end part at the connection side is present inside a sleeve 19 coupled to an outer casing 9. An adsorbent/absorbent is introduced in the shape of a scattering powder 17 to a chamber continuous with the reference electrode 13 and closed by a ring 18.

4. 发明专利

JP2000055872A ELECTROCHEMICAL SENSOR 失效
公开(公告)号：JP2000055872A
公开(公告)日：2000-02-25
申请号：JP22248599
申请日：1999-08-05
申请人： BOSCH GMBH ROBERT
发明人： NEUMANN HARALD DR
IPC分类号： G01N27/409 , G01N27/407
摘要： PROBLEM TO BE SOLVED: To effectively shield an input coupling of a heater voltage and prevent errors in measurement signals by a simple means by improving an electrochemical sensor. SOLUTION: An electrochemical sensor has a solid electrolyte which includes at least one first electrode, at least one second electrode and at least one heater element. An electrode 13 closest to a heater element 17 is grounded, and a different electrode 12 cooperating with the electrode 13 has a negative polarity.

5. 发明专利

JP2000025025A METHOD FOR MANUFACTURING PLATE-LIKE CERAMIC BODY AND DEVICE FOR EXECUTING THE METHOD 失效
公开(公告)号：JP2000025025A
公开(公告)日：2000-01-25
申请号：JP9811599
申请日：1999-04-05
申请人： BOSCH GMBH ROBERT
发明人： SCHMIDT-HEBBEL ROBERT , SACHS KARL-HEINZ , SCHNEIDER GERHARD , NEUMANN HARALD DR , WESTPHAL FRANK , BAYHA KURT
IPC分类号： B28B11/12 , B28B11/08 , G01N27/407
摘要： PROBLEM TO BE SOLVED: To enhance the thermal impulse resistance of a plate and, at the same time, install with a simple means in a mass production process by a method wherein chamfered parts are formed with cutting tools on an unprocessed body before its sintering. SOLUTION: In order to form chamfered parts 38, two cutting tools 46 equipped respectively with one cutting edge 47 are fixingly arranged to a support. These cutting tools 46 have cutting wedges 49. The cutting edges 47 of both the cutting tools 46 to longitudinal edges 36, which are formed on the cover surface of an unprocessed body 19 and locate opposite to each other. Through the realization of a straight-line motion with carriage, the body 19 is moved to the cutting surface of the cutting tool 46 or to the direction indicated with the arrow. In this case, each cutting tool 46 scrapes scraps or chips 50 off the longitudinal edge 36. As a result, first of all, the two chamfered parts 38 are produced on the top side cover surface of the unprocessed body 19. These chamfered parts 38 heighten the thermal impulse resistance of the body 19.

6. 发明专利

CZ399392A3 TEMPERATURE TRANSMITTER AND PROCESS FOR PRODUCING THEREOF 未知
公开(公告)号：CZ399392A3
公开(公告)日：1993-07-14
申请号：CS399392
申请日：1991-07-25
申请人： BOSCH GMBH ROBERT
发明人： FRIESE KARL-HERMANN DR , NEUMANN HARALD DR
IPC分类号： G01K7/18 , G01K7/22 , H01C7/02
摘要： PCT No. PCT/DE91/00601 Sec. 371 Date Feb. 12, 1993 Sec. 102(e) Date Feb. 12, 1993 PCT Filed Jul. 25, 1991 PCT Pub. No. WO92/03711 PCT Pub. Date Mar. 5, 1992.A positive temperature coefficient temperature sensor for use in exhaust-gas systems of internal-combustion engines includes a sensor element having a multilayer laminate composite structure with a positive temperature coefficient thermistor, formed by at least two resistor tracks arranged one above another and electrically insulated from one another. One of the layers of the multilayer structure is an insulating ceramic base film, and a first one of the at least two resistor tracks, with a supply lead, is printed onto the insulating ceramic base film. A second one of the at least two resistor tracks is disposed separately on the insulating ceramic base film by means of at least one insulating layer printed above the first one of the at least two resistor tracks. The at least two resistor tracks disposed one above another are connected by a land guided through the at least one insulating layer. A further film is subsequently laminated on the surface of the insulating ceramic base film printed with the at least two resistor tracks. The at least two resistor tracks are hermetically sealed by the laminate composite structure with respect to a gas being measured and environmental air.

7. 发明专利

DE19700700A1 未知
公开(公告)号：DE19700700A1
公开(公告)日：1998-07-16
申请号：DE19700700
申请日：1997-01-13
申请人： BOSCH GMBH ROBERT
发明人： WIEDENMANN HANS-MARTIN DR , NEUMANN HARALD DR , HEUSSNER KARL-HEINZ DR
IPC分类号： G01N27/41 , G01N27/407 , G01N27/409 , B05B7/14
摘要： A platelike sensor element (10), in particular for determining the oxygen content of exhaust fumes of internal combustion engines, has at least one measurement cell (12) with an oxygen ion conducting solid electrolyte and a heating element (14). The measurement cell (12) and the heating element (14) are joined together by an electrically insulating layer (50) made of at least one crystalline, non-metallic material and of at least one vitreous material. A glazing filled with the crystalline, non-metallic material is formed when the sensor element (10) is sintered.

8. 发明专利

CZ279661B6 TEMPERATURE TRANSMITTER AND PROCESS FOR PRODUCING THEREOF 未知
公开(公告)号：CZ279661B6
公开(公告)日：1995-05-17
申请号：CS399392
申请日：1991-07-25
申请人： BOSCH GMBH ROBERT
发明人： FRIESE KARL-HERMANN DR , NEUMANN HARALD DR
IPC分类号： G01K7/18 , G01K7/22 , H01C7/02
摘要： PCT No. PCT/DE91/00601 Sec. 371 Date Feb. 12, 1993 Sec. 102(e) Date Feb. 12, 1993 PCT Filed Jul. 25, 1991 PCT Pub. No. WO92/03711 PCT Pub. Date Mar. 5, 1992.A positive temperature coefficient temperature sensor for use in exhaust-gas systems of internal-combustion engines includes a sensor element having a multilayer laminate composite structure with a positive temperature coefficient thermistor, formed by at least two resistor tracks arranged one above another and electrically insulated from one another. One of the layers of the multilayer structure is an insulating ceramic base film, and a first one of the at least two resistor tracks, with a supply lead, is printed onto the insulating ceramic base film. A second one of the at least two resistor tracks is disposed separately on the insulating ceramic base film by means of at least one insulating layer printed above the first one of the at least two resistor tracks. The at least two resistor tracks disposed one above another are connected by a land guided through the at least one insulating layer. A further film is subsequently laminated on the surface of the insulating ceramic base film printed with the at least two resistor tracks. The at least two resistor tracks are hermetically sealed by the laminate composite structure with respect to a gas being measured and environmental air.

9. 发明专利

DE19713904A1 未知
公开(公告)号：DE19713904A1
公开(公告)日：1998-10-08
申请号：DE19713904
申请日：1997-04-04
申请人： BOSCH GMBH ROBERT
发明人： GRASER THEODOR , JACH OLAF , RENZ HANS-JOERG , NEUMANN HARALD DR , HANS ANTON
IPC分类号： G01N27/409 , G01N27/407 , G01N27/416
摘要： The invention relates to a method for producing a sensor element, specially for determining the oxygen content in exhaust gases from internal combustion engines, wherein a composite material comprising at least one ceramic paste available in the form of a film (green film) is sintered to the sensor element and the sharp edges of the sensor element are broken to improve thermal-shock resistance of said sensor element. The edges (36) of the sensor element (10) are broken before sintering occurs.

10. 发明专利

DE19805023A1 Gas sensor measuring lambda in e.g. internal combustion engine exhaust system 未知
公开(公告)号：DE19805023A1
公开(公告)日：1999-08-12
申请号：DE19805023
申请日：1998-02-09
申请人： BOSCH GMBH ROBERT
发明人： SCHNAIBEL EBERHARD , NEUMANN HARALD DR , RIEGEL JOHANN DR , DIEHL LOTHAR DR
IPC分类号： G01N27/419 , G01N27/417
摘要： The porous protective layer (21) is covered by a layer (25) of comparatively higher density or lower porosity. Preferred Features: The covering layer (25) facing into the gas measurement chamber (19), and the protective layer (21) both have the same high density or low porosity. The gas inlet passage (18) is connected to a gas outlet passage (17), formed at least partially as a cavity (24). The gas inlet opening has a porous cover (20) forming part of the protective layer. The gas passage (17) contains porous material (16). The gas chamber (13) contains porous material or is empty. The electrochemical element (2), especially its solid electrolyte body (10), has an inner gas chamber (23) containing reference gas, to which the fourth electrode (12) is exposed. The gas chamber is constructed from an inner cavity with porous filling, surrounded by first and second solid electrolyte bodies (6, 10). The layer (25) thickness is 20 mu m.

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