Channel opening and closing device for a vehicle air conditioning system comprises a housing defining fluid channels, doors and a shaft holding part for rotating first and second ends of rotating shaft

摘要

Channel opening and closing device comprises a housing (21) defining a first fluid channel (29) and a second fluid channel (30), a first door (31), a second door (32) and a shaft holding part for rotating first and second ends of rotating shafts (31a, 32a). Preferred Features: The door bodies are molded as one part with the two rotating shafts. The shaft holding part is made from a coaxial double cylindrical structure including an inner cylindrical part and an outer cylindrical part.