Rumwe rutivi rwekucheka. Cylinder deactivation system
Vanoshandisa motokari vanoda kuti motokari dzavo dzidye mafuta mashoma sezvinobvira. Naizvozvo, vagadziri vemotokari vanofanirwa kusangana nezvinotarisirwa izvi, kunyanya nekupa mhinduro nyowani kuderedza kupisa.
Kudzikira kwave kuwedzera mukurumbira muindasitiri yeinjini kwemakore akati wandei ikozvino. Tiri kutaura nezvekuderedza simba reinjini uye kuwedzera simba ravo panguva imwe chete, ndiko kuti, kushandisa nheyo: kubva pasi pesimba kusvika kune simba guru. Yechii? Izvo ndezvekuderedza kushandiswa kwemafuta, uye panguva imwechete kuderedza kubudiswa kwemakemikari anokuvadza mumagasi ekupedza. Kusvikira munguva pfupi yapfuura, zvakanga zvisiri nyore kuenzanisa injini duku nekuwedzera kwesimba. Nekudaro, nekupararira kwejekiseni remafuta akananga, pamwe nekuvandudzwa kwedhizaini yeturbocharger uye nguva yevharuvhu, kudzikisira kwave kwakajairika.
Kudzikisira injini kunopihwa nevazhinji vagadziri vemota. Vamwe vakatoedza kuderedza nhamba yemasilinda mukati mavo, iyo inoshandura kuva yakaderera kushandiswa kwemafuta.
Asi kune mamwe matekinoroji emazuva ano anogona kuderedza kushandiswa kwemafuta. Izvi, semuenzaniso, cylinder deactivation basa rakashandiswa mune imwe yeinjini Skoda. Iyi i1.5 TSI 150 hp peturu unit inoshandiswa mumhando dzeKaroq neOctavia, inoshandisa ACT (Active Cylinder Technology) system. Zvichienderana nekuremerwa kweinjini, iyo ACT basa inodzima maviri emasilinda mana zvakananga kuderedza kushandiswa kwemafuta. Masilinda maviri aya anovharwa kana simba reinjini rakazara risingadiwi, sepaunenge uchifambisa munzvimbo yekupaka, paunenge uchityaira zvishoma nezvishoma, uye paunenge uchityaira mumugwagwa uchimhanya zvine mwero nguva dzose.
Iyo ACT sisitimu yakatoshandiswa makore mashoma apfuura mu1.4 hp Skoda Octavia 150 TSI injini. Yaiva injini yekutanga ine mhinduro yakadaro mumuenzaniso uyu. Yakazowanawo nzira yayo mune Superb uye Kodiaq modhi. Huwandu hwekugadziridzwa uye kugadziridzwa kwakaitwa kune iyo 1.5 TSI unit. Maererano nemugadziri, kurova kwemasilinda mujini itsva kunowedzera ne 5,9 mm nekuchengetedza simba rimwechete re 150 hp. Nekudaro, zvichienzaniswa neinjini ye1.4 TSI, iyo 1.5 TSI unit ine yakawedzera kuchinjika uye nekukurumidza kupindura kune kufamba kweiyo accelerator pedal. Izvi zvinokonzerwa ne turbocharger ine blade geometry inoshanduka, yakanyatsogadzirirwa kushanda pakupisa kwegasi. Kune rumwe rutivi, intercooler, kureva, inotonhorera yemhepo yakamanikidzwa neturbocharger, yakagadzirwa nenzira yekuti inogona kutonhodza mutoro wakamanikidzwa kusvika kune tembiricha ye15 degrees chete pamusoro petembiricha yakapoteredza. Izvi zvinobvumira mhepo yakawanda kupinda mukamuri inopisa, zvichiita kuti motokari iite zvakanaka. Mukuwedzera, iyo intercooler yakafambiswa mberi kweiyo throttle.
Iyo peturu jekiseni pressure yakawedzerwawo kubva pa200 kusvika pa350 bar. Pane kudaro, kupesana kwemaitiro emukati kwakaderedzwa. Pakati pezvimwe zvinhu, crankshaft main bearing yakaputirwa ne polymer layer. Masilinda, kune rumwe rutivi, akapiwa chimiro chakakosha kuderedza kukwesha kana injini ichitonhora.
Nekudaro, muinjini ye1.5 TSI ACT kubva kuSkoda, zvaigoneka kushandisa zano rekudzikisa pasi, asi pasina chikonzero chekudzikisa kutamiswa kwayo. Iyi powertrain inowanikwa paSkoda Octavia (limousine uye chiteshi ngoro) uye Skoda Karoq mune zvese zvemanyorero uye dual-clutch otomatiki transmissions.
