| 摘要 |
PURPOSE:To enhanse air-conditioning efficiency changing the direction and width of blowing-out jet stream in an air-conditioning system by changing open area of the opening part of control board provided inside the blowing-out nozzle. CONSTITUTION:Control board 1 with opening part 1a rotates around axle 2 inside nozzle part 5. The area of opening part 1a is changed by closing board 33 and axis 3b pushed out by the spring built in axle 2, while axis 3b being operated with solenoid and the like. Air flow from the fan is separated by control board 1 into the upper and lower flows Falpha and Fbeta, then joins also with flow FA along stabilizer 6 to form flow Fgamma in the downstream and further flows out along guide wall 4. A part of flow Fbeta runs through opening part 1a to slow down the speed of flow Fbeta itself, while pushing up flow Falpha, acting for preventing the same from joining Fbeta. As a result, flow Fgamma widens in proportion to the area of opening part 1a. |
