| 摘要 |
FIELD: ventilation systems. ^ SUBSTANCE: air distributor includes rectangular cross section housing with air discharge branch pipe; guiding rotary boards jointly secured to branch pipe at opposite sides and having separate drive mechanisms. Boards are mounted in outlet cross section of branch pipe with possibility of rotation relative to inner surface of branch pipe outside direct action of inflow jet. Boards are bent along radius with convexity turned to side of outlet cross section of air discharge branch pipe. Boards are provided with perforations. -shaped carcass embracing each board is mounted at concave side of board. Said carcass forms together with bent board wedge-shaped recess 9 whose pointed end is directed to side of outlet cross section of air discharging branch pipe. Carcass enters recess at opposite side. Due to using bent perforated boards, pressure drop is provided in opposite sides of curved jet. ^ EFFECT: enlarged range of stable change of emitting direction of inflow jet into room. ^ 3 dwg
|
