| 摘要 |
PURPOSE:To improve air conditioning capacity and lower noise by providing a means of blast in an air duct from the inside air intake of an air conditioning duct to an exhaust port to the out or a car, and providing an inside and outside air shifting device on the lower course side of said means of blast. CONSTITUTION:An outside air intake 2 and an exhaust port 5 frontwardly positioned out of a car room, blow-out ports 4A, 4B, 4D for air conditioned air positioned in the front part in the car room, and an inside air intake 3 positioned in the rear part in the car room, are provided respectively constituting an air conditioning duct 1. An inside and outside air shifting damper 8 is provided in a branch part between the outside air intake 2 and an exhaust port 5 of the duct 1, and a blower fan 6 is provided in an air duct connecting the damper 8 and the inside air intake 3 of the duct 1. When introducing an outside air, the damper 8 is set tot he position of the solid line, to introduce fresh open air from the outside air intake 2 into the duct 1 by means of a ram pressure, and sending the air into an evaporator 10 through the duct 1 which is clear of any obstacles such as a blower, etc. |
