| 摘要 |
PURPOSE:To enable a much more amount of cool air to be blown off evenly by providing a duct, which connects the forward end of a ventilating duct with an air intake inlet, so as to allow a heater blower fan to serve concurrently as a cooler air fan. CONSTITUTION:A bus is provided with an air conditioner which includes a cool air heat exchanger 13, a cool air blower fan 14, a ventilating duct 15, a heating unit 16, and a communicating duct 17. And cool air from the cool air heat exchanger 13 is forwarded to the ventilating ducts 15a and 15b by the cool air blower fan 14. Simultaneously, a heater air blower fan 20 of the heating unit 16 is operated so as to allow a part of cool air in the ventilating duct to be blown off from air blow-off outlet 18 into a cabin. On the other hand, the rest of cool air is inducted into an inside air inlet 19 from an opening 15c through a connection duct 17, and is blown off into the cabin toward the neighborhood of the front row of passengers' seats by the heater air blower fan 20. This configuration enables a much more amount of cool air to be blower off evenly. |
