Device for emptying reducing agent unit of internal combustion engine, particularly exhaust system, has mechanical suction or pressure unit, whose suction or pressure mechanism is impinged by mechanical energy storage

摘要

The device has a mechanical suction or pressure unit (37), whose suction or pressure mechanism (38) is impinged by a mechanical energy storage, particularly spring (31) for a suction or pressure operation carrying a reducing agent in a reducing agent tank (2) or in an area insensitive against refreezing. The suction or pressure mechanism is a piston-cylinder unit (17). An independent claim is included for a method for emptying a reducing agent unit of an internal combustion engine.