Abstract:
A heating device, in particular for a sensor element for the analysis of exhaust gases from internal combustion engines, is disclosed. Said heating device comprises a heating conductor (11) running on a substrate (10), in particular in a convoluted form and at least one thermally conducting element (12), electrically insulated from the heating conductor (11) and arranged in the vicinity of the heating conductor (11).
Abstract:
The invention relates to a heat conductor, especially for a sensor for detecting at least one gas component in the exhaust gases of internal combustion engines. Said heat conductor consists of a cermet that contains platinum and at least one metal oxide. The invention further relates to a method for producing a heat conductor for a sensor for detecting an oxygen concentration, especially in the exhaust gases of internal combustion engines. A mass that makes up the heat conductor and that comprises a platinum powder and a metal oxide powder is applied on a ceramic film and is sintered. According to the invention, at least two further precious metals are added to the cermet.
Abstract:
A terminal connector assembly comprises: a terminal support (60), a terminal (62), (63) disposed at least partially within the terminal support (60), and a first insulator (90) having a passage (93) with an indentation (94) adjacent to the terminal (62), (63) and the terminal support (60). A gas sensor (10) and a method of producing a gas sensor (10) is also disclosed.
Abstract:
A gas sensor comprises a first electrode and a reference electrode with an electrolyte disposed therebetween, wherein the first electrode and said reference electrode are in ionic communication, wherein the reference electrode has a surface on a side of the reference electrode opposite the electrolyte and the surface has a surface area. The gas sensor also comprises a reference gas channel in fluid communication with the reference electrode, wherein at least a portion of the surface of the reference electrode physically contacts at least a portion of the reference gas channel, and wherein the portion of the reference electrode in physical contact with the reference gas channel is less than about 90 % of the surface area.
Abstract:
The invention relates to a heat conductor, especially for a sensor for detecting at least one gas component in the exhaust gases of internal combustion engines. Said heat conductor consists of a cermet that contains platinum and at least one metal oxide. The invention further relates to a method for producing a heat conductor for a sensor for detecting an oxygen concentration, especially in the exhaust gases of internal combustion engines. A mass that makes up the heat conductor and that comprises a platinum powder and a metal oxide powder is applied on a ceramic film and is sintered. According to the invention, at least two further precious metals are added to the cermet.
Abstract:
The invention relates to a measuring probe, especially for determining the oxygen content in exhaust gases of internal combustion engines, comprising a sensor element (15) fixed in a metallic housing (13) and a sealing flange (25) formed on the housing (13), which flange rests on a sealing seat (63) embodied on an exhaust system (11). The sealing flange (25) has two ring elements (26, 27) formed on the housing (13) which each have a sealing surface (26a, 27a) inclined at an angle. A hollow cavity (29) is configured between the two ring elements (26, 27) inside the housing (13).
Abstract:
The invention concerns a sensor element for determining the concentration of oxidizable constituents in a gas mixture, in particular of hydrocarbons, NO and NH3. The measuring electrode consists of electrically conductive spinels of general formula ABB'O4 or electrically conductive pseudobrookite of general formula ABB'O5.
Abstract:
A nitrogen oxide sensor having at least one pair of electrodes, i.e., a first electrode and a second electrode, set in such a state that the electrodes come into contact with an oxide ion conducting solid electrolyte, wherein at least the first electrode is made of an oxide of a Group 7a or 8 element, particularly selected from among Mn, Fe, Co and Ni, or a substance containing the oxide, or a composite oxide (including oxygen-deficient one) containing a Group 7a or 8 element, particularly represented by the formula: ABO3, AB2O4, A2BO4 or ACBO4, or a substance containing the composite oxide. The oxide or composite oxide used as the electrode material is active for oxygen and NOx but little exhibits catalytic activity for CO2. Accordingly, the above sensor can act effectively without being affected by change in CO2 concentration even at a temperature of 600 DEG C or above, and therefore can detect the concentration of NOx with a high accuracy, when set in the flow of high-temperature exhaust gas.
Abstract translation:一种具有至少一对电极(即,第一电极和第二电极)的氮氧化物传感器,其设置成使电极与氧化物离子传导固体电解质接触的状态,其中至少第一电极由 特别是Mn,Fe,Co和Ni组中的第7a或8族元素的氧化物或含有该氧化物的物质或含有7a或8族元素的复合氧化物(包括缺氧氧化物) 通过ABO 3,AB 2 O 4,A 2 BO 4或ACBO 4,或含有复合氧化物的物质。 用作电极材料的氧化物或复合氧化物对于氧和NOx是有活性的,但对CO 2几乎没有催化活性。 因此,即使在600℃以上的温度下,上述传感器也不会受到CO 2浓度的变化的影响,因此能够高精度地检测NOx的浓度,当设定在高温排气流中时 加油站。
Abstract:
The invention relates to a protective coating on at least one electrical conductor and/or semiconductor, especially an electric seensor, in which a porous first protective coating is applied directly to the surface of the electrical conductor and/or semiconductor and a gastight second protective coating is applied at least to regions of the first protective coating.