Air conditioning apparatus for cars

Claim 1

An air conditioning apparatus for cars comprising: an air intake fan having internal and external air inlet ports; a heat exchanger for cooling and a heat exchanger for warming, both of said heat exchangers being arranged in series downstream of said intake fan and extending in a direction substantially perpendicular to the direction of the air flow; and air mixing chamber formed downstream of said heat exchanger for warming, said air intake fan, said heat exchanger for cooling, said heat exchanger for warming and said air mixing chamber being all installed in order in one and the same casing, wherein the area of ventilation of said heat exchanger for warming is smaller than that of said heat exchanger for cooling; a by-pass route formed in said casing; an air mixing damper positioned in said by-pass route, said air mixing damper having a pivot arm for opening and closing said air mixing damper; and a warm water valve provided in said casing to regulate the flow rate of warm water supplied to said heat exchanger for warming, wherein said warm water valve for regulating the flow rate of warm water is connected to said pivot arm through a first wire cable and a manual operating lever for temperature control is connected to said pivot arm through a second wire cable, said manual operating lever thereby operating both said warm water valve and said air mixing damper, wherein said first and second cables are linked to said air mixing damper in such a manner that when said warm water valve is entirely opened, said air mixing damper is entirely closed and when said warm water valve is entirely closed, said air mixing damper is entirely opened.