Patent ID: 6959754

Claim:
An air conditioning system comprising: an air conditioning case having an entrance section divided into an external air inlet port and an internal air inlet port and an exit section which includes a defroster opening, a face opening and a floor opening; an evaporator and a heater core provided in sequence inside said air conditioning case with certain intervals from said external and internal air inlet ports; a partition wall extending from the rear of said evaporator via said heater core to the rear of said heater core within said air conditioning case for dividing the inside of said air conditioning case into upper and lower sections; a blower fan having first and second fans installed on the side of said internal and external air inlet ports of the air conditioning case for forcibly blowing the internal and external air to said evaporator and said heater core; first and second temperature adjusting doors provided respectively above and under the partition wall between said evaporator and said heater core for opening/closing a front space of said heater core; and third and fourth temperature adjusting doors provided respectively above and under said partition wall for opening/closing a rear space of said heater core, wherein each of said first and second temperature adjusting doors comprises: a rotary shaft rotated by an actuator, wherein said shaft is immediately adjacent to and parallel to the partition wall; fan-shaped side plates rotatably mounted on the rotary shaft in such a manner as to be spaced apart from each other by a certain interval and to extend from said rotary shaft; and an arc shaped shutter member arranged at ends of said side plates for blocking the flow of the air; and wherein each of said shutter members of the first and second temperature adjusting doors has anti-leak ribs at upper and lower ends thereof, said anti-leak ribs being superposed on baffles provided on the side of said evaporator and said heater core.