Variable valve nguva - chii ichocho? Chii chinonzi dynamics yeinjini?

Kana iwe uchida kuziva zviri nyore kana mota ine inochinja-chinja nguva yevhavha, iwe unofanirwa kutarisa kune iyo injini. Zvinozivikanwa kuti kunenge kusingabviri kuvarangarira vose. Ndezvipi zviratidzo zvakakosha kuziva? Inonyanya kufarirwa ndeye V-TEC, Vanos, CVVT, VVT-i uye Multiair. Chimwe nechimwe chazvo muzita chinoreva kana kuwedzera kwehuwandu hwemhepo, kana kuchinja kwechinzvimbo chevhavha. Dzidza kuti nguva yemota chii uye kuti musiyano unobata sei dhiraivha. uchaenda nesu here?

Ndezvipi zvikamu zvenguva yeinjini?

Ungazvitaura sei nenzira iri nyore? Iyi sisitimu inodzora kuvhurwa kwemavharuvhu ekutora uye ekupedza. Izvi zvichavandudza kuyerera kwemagasi pakati pekamuri yekupisa uye kupinza uye kubuda manifolds. Izvi, zvakare, zvinokubvumira kuti uwane simba rakawanda rejini pasina kushandisa, semuenzaniso, turbocharger. Variable valve nguva inoshandiswa nenzira dzakawanda. Nekudaro, basa ravo ndere kudzora nguva dzekuvhura mavharuvhu mune imwe nhanho yekumhanya kweinjini.

Iyo nzira yekushandura nguva yevhavha chinhu chakakosha

CPFR, sekudaidzwa kunoitwa chinhu ichi muchidimbu, chikamu chakakosha chepikicha yakaoma. The variable valve timing mechanism inonziwo phaser, variator, phase shifter, kana phase shifter. Ichi chinhu chinonyanya kuita basa rekudzora camshaft uye kushandura nzvimbo yayo yemakona. Muzviitiko zvakawanda zvinosanganiswa nemaitiro ekugovera. Izvi zvinoturikira kuita kurerutsa kwemeshini pachayo uye diki dhiraivha saizi.

Iyo nzira yekushandura nguva yevhavha - zviratidzo zvekusashanda

Kungofanana nezvimwe zvakawanda zvikamu zvemotokari, KZFR inogonawo kukuvara. Ungavaziva sei? Havasi nguva dzose vasinganzwisisiki, uye kazhinji zviratidzo zvechinetso zvinopindirana nezvimwe zvinogona kuitika. Zvisinei, pane hunhu zviratidzo. Kana injini yako inoshanduka yevhavha nguva isiri kushanda nemazvo, unogona kunge uri kusangana:

• idle speed fluctuations;
• kugogodza muinjini;
• hapana shanduko mukuita kweinjini mune yakaderera kumhanya renji;
• kudzima injini kana yamira, semuenzaniso, parobhoti;
• dambudziko nekutanga injini;
• kuita ruzha rwekutonhora kwekutyaira.

Kutyaira nevhavha yakakuvadzwa nguva vhiri - ndedzipi njodzi?

Pamusoro pekuti iwe uchanzwa matambudziko atakanyora paunenge uchityaira, mhedzisiro yemuchina inogona kutyisa. Kushanda kusina kunaka kwevhavha nguva yemagetsi kunokanganisa shaft yevhavha pachayo. Usaregeredza nguva yekugadzirisa dhiraivha. Hapana chekumirira, nekuti mhedzisiro inogona kunge isingachinjiki kukuvara kune roller pachayo. Uye ipapo iyo variable valve timing system haizoshande zvakanaka uye pachava nechimwe chikamu (chinodhura!), Icho chichada kuchinjwa.

Inguva yakareba sei iyo variable valve timing mechanism inoshanda?

Pamuenzaniso wemuchina kubva kuBMW, i.e. Vanos, tinogona kutaura izvozvo kwenguva yakareba. Mune injini dzinoshanda uye dzakachengetwa zvakanaka, matambudziko haaoneki kusvika mushure mekupfuura makiromita 200. Izvi zvinoreva kuti mumotokari itsva, muridzi wacho haafanire kutsiva chinhu ichi. Chinokosha ndechekuti injini inoshanda sei. Chero kusava nehanya kuchaonekwa munzira iyo michina inoshanda. Uye chii chinogona kutadza chaizvo mune inoshanduka chikamu system?

Yakakuvadzwa vharafu nguva sensor - zviratidzo

Nzira yekuziva sei kana iyo vheji yevhavha nguva solenoid valve isina kukwana? Zviratidzo zvekukuvara zvakafanana nekutadza kweiyo stepper motor. Yakagadzirirwa kuchengetedza inogara isingaite kukurumidza. Kana paine dambudziko ne sensor (solenoid valve), ipapo injini isingaite ingangove ine tsika yekumisa. Hazvinei kuti unotyaira uchitonhora, kana injini inopisa. Chikonzero chedambudziko chinogona kunge chiri kusashanda muhurongwa hwekutonga kana kukanganisa kwemagetsi. Naizvozvo, zviri nani kutanga kuyera voltage pane solenoid valve, uye wozotsiva zvinhu.

Kuchinja nguva yevhavha uye kutsiva iyo yese drive

Iwe unogona kunge wakafungidzira kuti iyo valve control mechanism inogona kutadza. Uye izvi zvinoratidza kuti KZFR haisi yekusingaperi. Naizvozvo, nguva nenguva (kazhinji neshanduko yega yega yechipiri nguva), vhiri pacharo rinofanira kutsiviwa. Nehurombo, iyo inoshanduka yevhavha nguva sisitimu haisi iyo yakachipa kushanda. Mune dzimwe mota, mutengo wekutenga wezvikamu zvese zvedhiraivha, pamwe nepombi yemvura, haifanirwe kudarika 700-80 euros, zvisinei, pane mhando dzinoita bhandi rimwe chete renguva inodhura inosvika 1500-200 euros, saka izvi ndizvo. mari yakawanda. Price.

Maitiro ekutarisira iyo inoshanduka valve timing system? Nekushanda kwakarurama kweiyo variable valve timing system, zvakakosha kuchengetedza zvakanaka chikwata chesimba. Yakakosha ndiyo nguva yekuchinja kwemafuta, iyo inofanirwa kuitika gore rega rega kana 12-15 zviuru zvemakiromita. Uyewo yeuka kuti mushure menguva yakareba yekusaita, haufaniri kutenderera injini pamusoro pe4500 rpm, nokuti mafuta anodzora kushanda kwechigadzirwa haasati ayerera ipapo kubva pani yemafuta.