This magnetic valve 42 is for example formed so as to be open without current, and, for an opening stroke of {HEAD ~ gas exchange valve} 10 that is to be introduced, is led into {TAIL ~ its closed position} by a control device , by being supplied with current 
This magnetic valve 42 is for example formed so as to be open without current , and , for an opening stroke of { HEAD ~ gas exchange valve } 10 that is to be introduced , is led into { TAIL ~ its closed position } by a control device , by being supplied with current
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH