Functional unit for hot gas system, particularly for exhaust gas system of motor vehicle, has function insert that is applied in closed state by cover and is held in supporting position on housing

摘要

The functional unit (10) has a function insert (26), which is insertable into a housing (12) through a passage opening of the housing, where a cover (46) is provided for closing the passage opening of the housing. The function insert is applied in the closed state by the cover and is held in a supporting position on the housing. The housing has a through-hole encircling an opening edge region, where the cover has a peripheral lid portion. A seal is made of graphite or mica.