Gas sensor with thermal shock protection
First Claim
1. A gas sensor comprising:
- a sensor housing;
a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing; and
a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including;
an inner tube, the distal end of the sensing element located within the inner tube, the inner tube including a general planar surface, and a window located on the generally planar surface adjacent the distal end of the sensing element;
a retainer element positioned over the inner tube; and
a fabric layer positioned adjacent the window, the fabric layer spaced from the sensing element and extending generally parallel to the axis.
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Accused Products
Abstract
A gas sensor includes a sensor housing, and a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing. The gas sensor further includes a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element. The sensor protection element includes a tube, the distal end of the sensing element located within the tube, the tube including a window located along a side of the tube adjacent the distal end of the sensing element. The sensor protection element further includes a fabric layer positioned adjacent the window, the fabric layer spaced from the sensing element and extending generally parallel to the axis.
107 Citations
19 Claims
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1. A gas sensor comprising:
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a sensor housing; a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing; and a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including; an inner tube, the distal end of the sensing element located within the inner tube, the inner tube including a general planar surface, and a window located on the generally planar surface adjacent the distal end of the sensing element; a retainer element positioned over the inner tube; and a fabric layer positioned adjacent the window, the fabric layer spaced from the sensing element and extending generally parallel to the axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A gas sensor comprising:
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a sensor housing; a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing; and a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including; an inner tube, the distal end of the sensing element located within the inner tube, the inner tube including a window located along a side of the inner tube adjacent the distal end of the sensing element; a fabric layer positioned adjacent the window, the fabric layer spaced from the sensing element and extending generally parallel to the axis; a retainer element positioned over and at least partially surrounding the inner tube, such that at least a portion of the fabric layer is disposed between the inner tube and the retainer element; and an outer tube at least partially surrounding both the inner tube and the retainer element. - View Dependent Claims (14, 15, 16, 17)
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18. A gas sensor comprising:
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a sensor housing; a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing; and a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including; an inner tube, the distal end of the sensing element located within the inner tube, the inner tube including a first window located along a side of the inner tube adjacent the distal end of the sensing element; a fabric layer positioned adjacent the first window, the fabric layer spaced from the sensing element and extending generally parallel to the axis; and a retainer element at least partially surrounding the inner tube and the fabric layer, the retainer element including a second window aligned with the first window along a direction perpendicular to the axis such that a first portion of the fabric layer is disposed between the first and second windows, and wherein the retainer element includes a third window not aligned with any windows on the inner tube along a direction perpendicular to the axis, such that a second portion of the fabric layer is disposed between the third window and a solid portion of the inner tube. - View Dependent Claims (19)
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Specification