Consequently, time when the closing timing of {HEAD ~ the intake valve} 8 is in {TAIL ~ the predetermined range T1} including the bottom dead center at a transition period of switching control is reduced 
Consequently , time when the closing timing of { HEAD ~ the intake valve } 8 is in { TAIL ~ the predetermined range T1 } including the bottom dead center at a transition period of switching control is reduced
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH