Filter device for air conditioners, to filter out undesirable particles in motor vehicle, has filter element for filtering gas stream, where filter element is adjustable by fluid pressure of gas stream

摘要

The filter device (1) has a filter element (2) for filtering a gas stream, where the filter element is adjustable by a fluid pressure of the gas stream between an initial position (15) and an extension position (16). The filter element has a large extension relative to the initial position in the extension position. A partial area (5) of the filter element is covered or opened in response to the fluid pressure by a valve device (6), which is arranged at an outer side (4) of the filter element.