Enjene ea D-VVT ke tsoelopele le nts'etsopele ea VVT, e rarolla mathata a tekheniki ao enjene ea VVT e ke keng ea a hlola.

DYYT e emetse Dual Variable Valve Timing . Ho ka boleloa hore ke mofuta o tsoetseng pele oa theknoloji ea morao-rao ea nako ea ho feto-fetoha ha nako.

Enjene ea DVVT ke eona tlholisano e ncha ka ho fetesisa e ipapisitseng le ntlafatso e felletseng ea theknoloji ea enjine ea VVT. E 'nile ea sebelisoa ka mefuta e phahameng-qetellong joaloka BMW 325DVVT. Le hoja molao-motheo oa mochine oa DVVT o tšoana le oa mochine oa VVT, mochine oa VVT o ka fetola valve ea ho kenya feela, ha mochine oa DVVT o khona ho fetola li-valve tsa ho kenya le ho qeta nako ka nako e le 'ngoe. Roewe 550 1.8LDVVT e ka boela ea finyella sebaka se itseng sa angle ho latela lebelo la enjene e fapaneng. Karolo ea li-valve e ka hare e khona ho fetoha ka mokhoa o hlakileng 'me e na le litšobotsi tse babatsehang tsa liphetoho tse tlaase, torque e phahameng, liphetoho tse phahameng le matla a phahameng.

Enjene ea D-VVT e sebelisa molao-motheo o ts'oanang le enjene ea VVT, mme e sebelisa sistimi e bonolo ea hydraulic cam ho fihlela mesebetsi ea eona. Phapang ke hore mochine oa VVT o ka fetola valve ea ho kenya feela, ha mochine oa D-VVT o khona ho fetola li-valve tsa ho kenya le ho qeta nako ka nako e le 'ngoe. E na le litšobotsi tse babatsehang tsa liphetoho tse tlaase, torque e phahameng, liphetoho tse phahameng le matla a phahameng. boemo ba ho etella pele. Ka mantsoe a layman, joalo ka phefumoloho ea motho, bokhoni ba ho laola "exhale" le "inhale" ka morethetho kamoo ho hlokahalang, ehlile, e na le ts'ebetso e phahameng ho feta ho laola "inhale".