Suction Excavator

A suction excavator (1) for collecting suction material (6), comprising:

• a collection container (5) configured to receive the suction material (6);
• an outwardly projecting suction trunk (11) configured to collect the suction material (6);
• a filter chamber (7) arranged adjacent to the collection container (5), the filter chamber (7) comprising a filter unit (8) through which suction air is guided for fine filtration;
• an air supply space (12) arranged above the collection container (5);
• a diffuser (13) arranged in the air supply space (12) and connected to the suction trunk (11);
• a cyclone (16) configured to guide the suction air from the diffuser (13) into the filter chamber (7) via a transition piece (17);
• and
• a U-shaped air channel section (14) connecting the diffuser (13) to the cyclone (16),
• wherein the U-shaped air channel section (14) is open towards the collection container (5) below, such that the suction material (6) carried with the suction air is permitted to fall by gravity onto a ground (18) of the collection container (5).