Air outlet in room ceiling

摘要

The outlet delivers hot or cold air into a room via a mouthpiece (2) covered by a perforated plate (1). The mouthpiece has an internal air guide (3) with an ejector (4) guided in a funnel (10). One or more covering rings (11) join onto the funnel and are mounted on the perforated plate. The ejector can consist of a section of pipe movable in the air guide. It can be steplessly adjustable in the guide either manually, hydraulically, electrically or pneumatically. The guide can have a cylindrical collar (9) with opening (9.1) and onto which the widening funnel is joined. An annular gap (8) can be formed between the ring and the mouthpiece.