PURPOSE: To realize comfortable temperature distribution in a cabin by discharging air toward the opening section or an upper end from the two lower end air supply ports touching the side wall of a duct opens at its upper and lower end and taking the air in a cabin from the lower opening section.
CONSTITUTION: The upper and lower ends of an inclined side wall in a take-in duct 1 is opened. An outlet port 2 for conditioned air 5 is formed at the upper opening. Air inlet ports 3 are formed at two places at the lower part touching the side wall to supply conditioned air 5 to the take-in duct 1. In addition, an intake port 4 is formed for outside air suction caused by the supplied main air flow. That is, near the back of the inlet ports 3, that is, near the opening face of an intake port, negative pressure is generated, and outside air 7 is sucked due to the difference between the negative pressure and the pressure of outside air. By this constitution, enough air volume to turn the circulated air in a cabin can be sucked to keep temperature distribution in the cabin uniform.
HIRAKAWA HARUO
MATSUMOTO MASAKAZU
