I-torque ephezulu yokuqala, i-voltage ephantsi, ukusebenza okuphezulu okuphezulu kwenqanaba lesithathu lemagnethi esisigxina yemoto yeeyunithi zokumpompa ioyile kwishishini lepetroleum.

Ukuqala i-torque eninzi ifikelela kumaxesha e-3.2, kunye nesantya esiphezulu sokugcina amandla we-27.96%