| 摘要 |
PURPOSE:To reduce the mounting space for an air conditioner by using a servo motor as the driving source of an air mixing damper and placing individual actuators which drive the other air conditioning members under control of a common air circuit changeover mechanism. CONSTITUTION:An air circuit change-over mechanism 32 contains a case 41 which consists of a case body 47 and a cover 38 and inside of said case 41 an output power shaft 46 which is driven by a servo motor 16 via a worm gear 42, a worm wheel 43, a pinion gear 44 and an output power gear 45 is supported rotatably by bearings 45 and 50. A supply pressure change-over packing 55 is firmly bonded on the upper face of the output power gear 45 as opposed to each connecting port 51 to 54 of air circuits which is formed on the cover 48. When the packing 55 is turned, the air circuits between each connection port 51 to 54 may be changed over by a separation wall which is formed on the packing 55. A base plate 60 having a resisting element 62 which constitutes a potentiometer 33 is disposed below the output power gear 45. |
