Oxygen sensor with a heater

Details Oxygen sensor with a heater Oxygen sensor with a heater

1997-06-04

1998-09-08

Williams, Hezron E.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204408, 204428, 205785, 73 2332, G01N 2726, G01N 700

Patent

active

058040501

ABSTRACT:
A shaft-like heating member is inserted into and fixed to an oxygen sensing element of a hollowed shaft-like member, together with of a terminal member. A heating portion is located at a portion of the heating member closer to the extreme end thereof. The surface of the heating portion is resiliently pressed on the element inner wall in a side-abutting fashion. In this case, a guide mainly gives rise to the elastic force. With such a side-abutting structure, heat generated in the heating portion is directly transferred to the oxygen sensing element, and heats it. Heat radiated from a portion in the vicinity of its contact position additively heats the oxygen sensing element. Temperature of the oxygen sensor quickly reaches an activation temperature.

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