| 摘要 |
PURPOSE:To regulate the characteristics of an auxiliary air control valve after the assembling by regulating the position of the valve seat of the auxiliary air control valve, as well as integrating the air control valve and an air regulating valve, so as to realize the small size of the whole body. CONSTITUTION:A step motor type of auxiliary air control valve 3 is installed to make the flange face 5a of a housing 2 and a rotary shaft 21 orthogonal, and a valve element 23 is positioned in the upstream of a valve seat 19. An opening 7 for regulation is formed to a flange so as to face to the valve seat 19, and the position of the valve seat 5 19 is made possible to regulate. An outlet passage 31 is formed in an L-shape to detour from the side surface of opening 7 for regulation to the side direction, and a heat-sensitive type auxiliary air regulating valve 4 utilizing the thermowax is provided at the part of the flange 5, so as to regulate the passage area there. |
