Device for damping pressure fluctuations of pump, has compensation element and wall of cavity that are shaped, such that compensation element applies pressure to wall of cavity, when pressure is applied to compensating element

摘要

The device has an elastically deformable compensating element (30) that is arranged in the housing (20). The housing forms a fluid-carrying space (21) in each operating state. The compensation element and a wall (22) of the cavity (23) are shaped, such that the compensation element applies pressure to the wall of the cavity, when pressure is applied to the compensating element. A section of the cavity is separated from the gas-tight portion formed by the compensation element on the cover. Independent claims are included for the following: (1) a filter for filtering of fluid for exhaust gas treatment of internal combustion engine; and (2) a conveying module for conveying fluid to treatment of exhaust gas of internal combustion engine from storage container to metering, with pump.