Process and apparatus for ventilating or tempering rooms
AssigneeAB Svenska Flaktfabriken
InventorBirger Larkfeldt
Life of this patent
Estimating the term…
Abstract
Process and apparatus for controlling the flow of ventilating-tempering air in a room to cause the flow to remain primarily along the walls, ceiling and floor, thereby to achieve better distribution of incoming air and more uniform room temperatures without uncomfortable drafts in the main body of the room. To accomplish this, the ventilating-tempering air is initially launched into the room along a boundary surface such as a wall or ceiling, and nozzles below the ceiling form air screens or jets below the ventilating-tempering air stream to guide it along the ceiling and down the walls. An intermediate grate-like ceiling of crossed lamellae is also preferably used to aid in separating ventilating-tempering air stream from the main center of the room.
Claims13
A process for controlling the flow in a room of air controllably conditioned as to its temperature and/or freshness to maintain air in the central portion of said room at or near a predetermined desired temperature and/or freshness, comprising:
- launching one or more jets of control air along a plane generally parallel and near to the ceiling of said room but spaced downwardly therefrom, from a launching location positioned near but downwardly of said ceiling, to form a sheet of rapidly-moving control air spaced below and generally parallel to said ceiling over a major portion of the area of said ceiling;
- and
- injecting a flow of said conditioned air into the region of said room above said jets of air and along said ceiling in a direction generally parallel to the direction of flow of the adjacent portion of said sheet of control air;
- moving the control air in said sheet at a velocity high compared with said flow of conditioned air and serving to confine said flow of conditioned air substantially to a path extending through said region over at least a major portion of the area of said ceiling.
Dependencies are inferred from the claim text.