| 摘要 |
PURPOSE:To restrict direction of supply air with respect to primary and secondary supply ducts so as to distribute supply of air in the inflow direction and reverse direction thereto at an equal proportion of flow rates, by opening and closing primary and secondary inflow ports by means of primary and secondary opening and closing doors which are coaxially mounted on the turning shaft. CONSTITUTION:An air supply direction regulating device consists of both a primary inflow port 51 which is open to the air supply direction and a secondary inflow port 52 which is open to a secondary supply duct 8. Supply directions with respect to the primary and the secondary supply duct 7 and 8 are restricted by means of opening and closing doors 61 and 62 which are mounted coaxially on a turning shaft 15 at approximately right angles to each other. When the primary and the secondary inflow port 51 and 52 are opened to approximately same degrees by the respective supply direction restricting means of said doors to supply air of the same flow rates, hot air of the approximately same flow rates can be supplied from the primary and the secondary supply ducts 7 and 8. |
