Iyinjiza nibisohoka biranga vacuum.Hariho ingingo ihindagurika kuri buri murongo ujyanye na dogere zitandukanye za vacuum ku gishushanyo, bita imbaraga ntarengwa zifasha, ni ukuvuga, aho itandukaniro ryumuvuduko ukorera kuri diaphragm ya servo rigera kuri byinshi uko imbaraga zinjira ziyongera.Kuva iyi ngingo, kwiyongera kwingufu zisohoka bingana no kwiyongera kwingufu zinjira.
Ukurikije QC / T307-1999 "Imiterere ya tekiniki ya vacuum Booster", impamyabumenyi ya vacuum yinkomoko ya vacuum mugihe cyizamini ni 66.7 ± 1.3kPa (500 ± 10mmHg).Ibyinjira nibisohoka biranga vacuum bizamura mbere nuburyo bwo kubara.Ukurikije ihame ryakazi rya vacuum booster, ibipimo bibiri biranga kumurongo uranga umurongo ushobora kugereranywa: imbaraga zinjiza zijyanye ningufu ntarengwa hamwe nigiteranyo;Ikigereranyo cyimbaraga zisohoka nimbaraga zinjiza mbere yingufu ntarengwa, aribyo igipimo cyingufu
