For the controlling of a variable stroke of gas exchange valve 10 for {HEAD ~ the purpose} of achieving an extremely short opening duration of the gas exchange valve in partial load and low load operation of the internal combustion engine, there is connected to pump outlet 38 an additional relief opening that can be optionally closed by {TAIL ~ an electrically controllable closing valve} 40 
For the controlling of a variable stroke of gas exchange valve 10 for { HEAD ~ the purpose } of achieving an extremely short opening duration of the gas exchange valve in partial load and low load operation of the internal combustion engine , there is connected to pump outlet 38 an additional relief opening that can be optionally closed by { TAIL ~ an electrically controllable closing valve } 40
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL TAIL TAIL OTH