Gas sensor

Details Gas sensor Gas sensor

2008-09-11

2011-10-25

Williams, Hezron E (Department: 2856)

Measuring and testing

Gas analysis

Detector detail

Reexamination Certificate

active

08042380

ABSTRACT:
A gas sensor has a sensor element, extending axially, that detects a particular gas component in a gas under measurement, a metal housing causing the end of the sensor element to protrude farther than the end thereof to expose it to the gas under measurement and that surrounds the periphery of the sensor element and an outer tube disposed at the rear end inside the metal housing and a seal member that is disposed farther to the rear than the detection element and also inside the rear end of the outer tube, and that has formed therein a atmosphere-introduction hole passing therethrough in the axial direction, the gas sensor further having a crimped part, formed in the outer tube, for the purpose of holding the seal member a hollow-cylindrical member in contact with the inner peripheral surface of the atmosphere-introduction hole so as to oppose the crimped part, and a metal filter that joins to the hollow-cylindrical member at the rear end of the hollow-cylindrical member and also farther to the rear than the crimped part.

REFERENCES:
patent: 6395159 (2002-05-01), Matsuo et al.
patent: 7287413 (2007-10-01), Nishio et al.
patent: 7318339 (2008-01-01), Nishio et al.
patent: 7550117 (2009-06-01), Alward et al.
patent: 2002-181765 (2002-06-01), None

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