Reservoir for storing liquid reducing agent, comprises reservoir casing enclosing space that holds reducing agent, and reservoir contains elastic device

摘要

The reservoir comprises a reservoir casing (21) enclosing a space (23) that holds the reducing agent. The reservoir (1) contains an elastic device (25) which is so deformed that the space holding the reducing agent is expanded when the reducing agent increases in volume. The elastic device is a flexible ductile section of the reservoir casing.