Sensor element and gas sensor
    1.
    发明授权

    公开(公告)号:US11921078B2

    公开(公告)日:2024-03-05

    申请号:US17411081

    申请日:2021-08-25

    IPC分类号: G01N27/407

    摘要: A sensor element includes an element body and a porous protective layer arranged to cover a part of a surface of the element body. The protective layer includes an inlet protective layer arranged to cover a gas inlet formed in the surface of the element body, and at least a part of a face included in the surface of the element body, the face on which the gas inlet is opens, and an arithmetic average roughness Rap of an inner peripheral surface of an internal space of the inlet protective layer satisfies at least one of conditions below: the arithmetic average roughness Rap is 8 μm or more, and the arithmetic average roughness Rap is higher than an arithmetic average roughness Rac of a bonding surface of the protective layer, the bonding surface at which the protective layer is bonded to the element body.

    ELECTROCHEMICAL GAS SENSOR ASSEMBLY
    2.
    发明公开

    公开(公告)号:US20230194461A1

    公开(公告)日:2023-06-22

    申请号:US18165712

    申请日:2023-02-07

    摘要: Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

    Sensor device
    4.
    发明授权

    公开(公告)号:US09976980B2

    公开(公告)日:2018-05-22

    申请号:US14778463

    申请日:2014-03-19

    IPC分类号: G01N27/407 G01M15/10

    摘要: A sensor device includes: a housing body delimiting within the housing body: a flow duct, and a bypass that branches off from the flow duct at a branching point, the bypass having a wall with an opening; and a sensor element configured to detect a gas content, the sensor element being arranged in the opening. The sensor element has: a sensor body having a longitudinal axis, an electrode chamber within the sensor body, a heating element embedded in the sensor body and by which a predefined region around the electrode chamber is heatable to a predefined operating temperature, an inlet duct coupled to the electrode chamber and having an inlet on the surface of the sensor body, and a thermal insulation sleeve on the sensor body, the thermal insulation sleeve extending at least axially in the direction of the longitudinal axis over a region of the electrode chamber.

    Thermal sleeve with integral positioning member, assembly therewith and method of construction thereof

    公开(公告)号:US09876339B2

    公开(公告)日:2018-01-23

    申请号:US15202132

    申请日:2016-07-05

    发明人: Jimmy E. Teal

    IPC分类号: H02G3/04 G01N27/407

    摘要: A thermal sleeve for protecting an electronic member connected to a wiring harness, assembly therewith and method of construction are provided. The thermal sleeve includes a tubular heat-settable nonwoven inner layer having a generally cylindrical portion and an outer surface extending along a longitudinal central axis between opposite open ends. A reflective outer layer is disposed about the outer surface. At least one finger of the heat-settable nonwoven inner layer extends radially inwardly from the generally cylindrical portion. The at least one finger is heat-set to remain extended radially inwardly absent an externally applied force thereon. The at least one finger has a free end surrounding a through opening sized for receipt of the wiring harness.

    Gas sensor assembling method and gas sensor assembling apparatus

    公开(公告)号:US09851334B2

    公开(公告)日:2017-12-26

    申请号:US14638648

    申请日:2015-03-04

    摘要: A gas sensor assembling method includes a step for placing an element dummy such that it has a longitudinal direction in a vertical direction, wherein the cross-sectional shape of the dummy is similar to the cross-sectional shape of a sensor element, a step for fitting a through hole in an annularly-mounted member to the dummy from above vertically, wherein the through hole included in the annularly-mounted member corresponds to the cross-sectional shape of the sensor element, a step for fitting a tubular member to an outer periphery of the annularly-mounted member from above vertically, an step for placing the sensor element in contact with an upper end portion of the dummy on a single straight line, and an step for descending the dummy downwardly vertically for descending the sensor element and fitting the through hole in the annularly-mounted member to the sensor element.

    Insulating grip and apparatus for a gas sensor

    公开(公告)号:US09823230B2

    公开(公告)日:2017-11-21

    申请号:US14643397

    申请日:2015-03-10

    摘要: In a gas sensor, not only a tube 70 covers lead wires 48, but also the tube 70 covers an outer peripheral surface of an end portion of an outer cylinder 46 including an open end 46a. A portion of the outer peripheral surface of the outer cylinder 46 covered with the tube 70 is gripped by a clamp 80. Thus, the clamp 80 integrally grips the tube 70 and the outer cylinder 46. Moreover, the tube 70 protrudes from the clamp 80 to a side of the outer cylinder 46 opposite from the open end 46a (protrusion amount L>0). Further, the open end 46a of the outer cylinder 46 forms a large-diameter portion whose outer diameter is larger than an inner diameter D1 of the clamp 80.

    METHOD FOR MANUFACTURING SENSOR INTERMEDIATE PRODUCT AND METHOD FOR MANUFACTURING SENSOR
    10.
    发明申请
    METHOD FOR MANUFACTURING SENSOR INTERMEDIATE PRODUCT AND METHOD FOR MANUFACTURING SENSOR 有权
    制造传感器中间产品的方法和制造传感器的方法

    公开(公告)号:US20170059512A1

    公开(公告)日:2017-03-02

    申请号:US15351675

    申请日:2016-11-15

    IPC分类号: G01N27/407

    摘要: A method for manufacturing a gas sensor includes: disposing a tubular holder and a tubular compact in a tubular metallic shell defining a through hole, the tubular holder defining a first insertion hole, and the tubular compact defining a second insertion hole; preparing a preliminary assembly in which a pin is inserted into the first insertion hole and the second insertion hole; pulling out the pin from the first insertion hole and the second insertion hole and inserting a sensor element into the first insertion hole and the second insertion hole such that a forward end of the pin will come into contact with an end of the sensor element; compressing the compact to thereby fix the sensor element inside of the metallic shell; welding a protection sleeve to the metallic shell to thereby form a semi-assembly; and combining the semi-assembly with another semi-assembly to thereby form the gas sensor.

    摘要翻译: 一种制造气体传感器的方法,包括:将管状保持器和管状紧凑件设置在限定通孔的管状金属外壳中,管状保持件限定第一插入孔,管状紧固件限定第二插入孔; 准备其中销插入到第一插入孔和第二插入孔中的预备组件; 从第一插入孔和第二插入孔拔出销,并将传感器元件插入到第一插入孔和第二插入孔中,使得销的前端将与传感器元件的端部接触; 压缩压块,从而将传感器元件固定在金属外壳内; 将保护套焊接到金属外壳上,从而形成半组件; 并将半组件与另一半组件结合从而形成气体传感器。