Sensor
1 Assignment
0 Petitions
Accused Products
Abstract
A sensor for determining a physical property such as the concentration of a gas component or the temperature of a measuring gas, e.g., the exhaust gas of internal combustion engines, has a sensor element which is secured in a housing and is surrounded at an end section on the measuring gas side by a protective tube and surrounded at an end section on the connection side by a protective sleeve, and also has a radially projecting flange for securing the sensor on a sealing seat formed on a measuring gas duct. To reduce manufacturing costs, the flange is molded onto the protective tube as one piece. The protective tube is manufactured as a deep-drawn part, and a trimming edge remaining after deep drawing on the end side is used as a securing flange.
21 Citations
26 Claims
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1-13. -13. (canceled)
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14. A sensor for determining a physical property of an exhaust gas of an internal combustion engine, comprising:
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a housing;
a sensor element secured in the housing, wherein a first end section of the sensor element on a measuring gas side is enclosed by a protective tube, and wherein a second end section of the sensor element on a connection side is further enclosed by a protective sleeve; and
at least one radially-projecting flange for securing the sensor on a sealing seat formed on a measuring gas duct, wherein the at least one radially-projecting flange is formed as one piece on at least one of the protective sleeve and the protective tube. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for manufacturing a sensor for determining a physical property of an exhaust gas of an internal combustion engine, comprising:
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securing a sensor element in a housing having a first end section and a second end section such that the sensor element axially projects from the housing;
reverse drawing a protective tube over the first end section;
reverse drawing a protective sleeve over the second end section; and
bonding the protective tube and protective sleeve to the housing;
wherein at least one of the protective tube and the protective sleeve is deep-drawn, and wherein, subsequent to the deep-drawing, at least a portion of a trimming edge remaining on the deep-drawn part is used as a mounting flange for installing the sensor. - View Dependent Claims (26)
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Specification