Valve device for insertion of fluid, particularly reducing agent into exhaust tract of internal combustion engine, comprises valve rod, which is axially stored in housing in movable manner

摘要

The valve device (1) comprises a valve rod (12), which is axially stored in a housing (2) in a movable manner, and a closing body (9), which is work-connected in a closing position for sealing a discharge opening (10) for the reducing agent. A guide sleeve (19) is provided in an underground storage unit (11) for the reducing agent. The valve rod is arranged in sections in a tubing element (13) made of Teflon(RTM: Polytetrafluoroethylene) arranged in the housing.