Gas sensor, used for detecting gas components in exhaust gas, comprises porous material arranged between a supporting element and housing containing sensor element

摘要

Gas sensor comprises a sensor element (114) arranged in a housing (113), and a supporting element (161) provided on the connecting end (113b) of the housing in a contact region (160). A porous material (166) is arranged between the supporting element and the housing. An opening (171) is formed in the contact region in the housing and a flow path is provided along an outer surface of the supporting element. Preferred Features: A reference gas located outside of the sensor flows through the opening of the housing, through the porous material and via the flow path along the outer surface of the supporting element to a connecting end of the sensor element. The flow path is formed by a narrowing part (174) of the supporting element on a region facing the sensor element. A reference gas channel is formed in the sensor element.