VALVE DEVICE

摘要

PROBLEM TO BE SOLVED: To accommodate a function for shutting a flow passage and a function for controlling a flow rate with a simple structure.

SOLUTION: The valve device includes: a ball valve 50 having a valve body 74 disposed in a flow passage 70; a valve mechanism 53 having a butterfly valve 52 with a valve body 80 disposed in a through hole 72 formed in the ball valve 50; a shaft axis 76 which transmits a rotational driving force of the rotational driving source to a valve mechanism 53 and engages with an axial hole 78 formed in the valve body 74 of the ball valve 50 while the lower part side along the axial direction is connected to the valve body 80 of the butterfly valve 52; and an engagement mechanism 75 which is disposed at one end of the shaft 76 and engages the lower side along the axial direction of the shaft axis 76 with an axial hole 78 formed in the valve body 74 of the ball valve 50.

COPYRIGHT: (C)2013,JPO&INPIT