Kupinza uye kubuda maitiro evacuum booster. Pane inflection point pane yega yega curve inoenderana neakasiyana vacuum madhigirii mumufananidzo, inonzi iyo yakanyanya simba rekubatsira poindi, ndiko kuti, iyo nzvimbo iyo mutsauko wekumanikidza unoshanda pane servo diaphragm unosvika pakakwirira sezvo simba rekupinza rinowedzera. Kubva panguva ino zvichienda mberi, kuwedzera kwesimba rekubuda kwakaenzana nekuwedzera kwesimba rekupinza.
Zvinoenderana neQC/T307-1999 "Technical Conditions for vacuum Booster", iyo vacuum dhigirii yevacuum sosi panguva yekuedzwa ndeye 66.7±1.3kPa (500±10mmHg). Iyo yekupinza uye yekubuda hunhu hwevacuum booster inofanotemerwa nenzira yekuverenga. Zvinoenderana nemusimboti wekushanda wevacuum booster, maviri hunhu paramita pane hunhu curve inogona kuverengerwa: iyo yekuisa simba inoenderana neiyo yakanyanya simba poindi uye sum; Reshiyo yesimba rinobuda kune simba rekuisa pamberi penzvimbo yepamusoro yesimba, kureva reshiyo yemagetsi
