{HEAD ~ The coiled spring} is disposed swingably outside the first intake air passage or {TAIL ~ the second intake air passage}, and has a swinging end, which is brought into contact with a surface of the interlocking member 
is disposed swingably outside
{ HEAD ~ The coiled spring } is disposed swingably outside the first intake air passage or { TAIL ~ the second intake air passage } , and has a swinging end , which is brought into contact with a surface of the interlocking member
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH