The interlocking member is disposed outside the first intake air passage or the second intake air passage, and swings by interlocking with {TAIL ~ the swinging} of {HEAD ~ the opening and closing valve} 
The interlocking member is disposed outside the first intake air passage or the second intake air passage , and swings by interlocking with { TAIL ~ the swinging } of { HEAD ~ the opening and closing valve }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD