Ukuvalwa kwesilinda se-ACT: Run
Okuqukethwe
Ukuvalwa kwe-cylinder okusebenzayo, okwaziwa kakhulu njenge-hood yezimoto zakwaVolkswagen (okubizwa ngokuthi yi-ACT ku-TSI), kuya ngokuya kuvame kakhulu phakathi kwabancintisana nabo ngenxa yemikhawulo yezemvelo okuba nzima kakhulu ukuyinakekela. Ngakho-ke leli elinye iqhinga, elingacishe lifane ne-Stop and Start, ukugwema ukumisa ukulahleka. Lapha asimoshi lapho sidinga amandla amancane (okuncane njengokuxubana okuxekethile / okuhlanganisiwe), okusho ngejubane eliphansi kakhulu (1500 kuye ku-4000 rpm ku-1.4 / 1.5 TSI ACT) nalapho i-pedator ye-accelerator ilayishwe kancane (imithwalo elula ). Qaphela ukuthi lolu hlu lokusetshenziswa lumayelana nezingxenye ezimbili kwezintathu zomzila womjikelezo wakudala we-NEDC, ngakho-ke singaqonda ukuthi kungani lokhu kwakuthakazelisa ngomkhiqizo ... Empilweni yangempela, ngeke sikujabulele kakhulu, ngaphandle kokuthi abashayeli enokuthula okukhulu.
Isimiso sokuvala isilinda
Uzoqonda, indaba ukuthi amanye amasilinda awasasetshenziswa ukukhawulela isidingo sikaphethiloli. Uma sondla uhhafu kakhulu, kuzozuza kuphela!
Ngakho-ke, thina, ngokweqiniso, ngeke sisabafakela uphethiloli abanye babo. Kepha uma kuzwakala kulula, empeleni kuyinkimbinkimbi ngokwengeziwe.
Ngempela, khona-ke sithola amasilinda amabili adonsa umoya ethekwini awukhafulele endaweni yokuphuma? Sizolahlekelwa ukusebenza ngoba sizobe sishaya amanzi ... Ngaphezu kwalokho, amasilinda angasebenzi azothola umthamo womoya wokungenisa, nokho, abekelwe amasilinda asebenzayo.
Ngamafuphi, ukucisha umjovo kanye nokuthungela kwamanye amasilinda akusebenzi nhlobo, kufanele siqhubeke. Yilapho uhlelo lwe-cam oluguquguqukayo lungena ekushintsheni ukusebenza kwama-valve wokudla nawokukhipha. Uma amasilinda engasasebenzi (engasekho ukuthungela futhi engasekho umjovo), kufanele futhi ukhumbule ukukhiya ama-valve ukuze ahlale endaweni evaliwe.
Ekugcineni, kuyadingeka futhi ukuthi amasilinda angasebenzi angabangeli ukungalingani enjinini. Ngoba uma ngabe munye kuphela uquqaba olu-4 (esimweni se-L4, ngakho-ke) engasasetshenziswanga (yingakho isilinda esisodwa kuphela), kuzoba khona ukuvela okunengqondo kokudlidliza.
Ngakho-ke, kulokhu kubalulekile ukusika inani elithile lamasilinda, namasilinda, lawo, ngaphezu kwalokho, anemijikelezo ephikisanayo (lapho enye icindezela, enye ixegayo, asikho isidingo sokusika amasilinda amabili anemijikelezo efanayo). Ngamafuphi, la masilinda amabili acishiwe awazange akhethwe ngengozi ngabanjiniyela futhi akusho lutho. IVolkswagen ene-TSI inamasilinda amabili phakathi (kumasilinda ayi-4 emigqeni engu-1.4 no-1.5), ngoba anemijikelezo yomsebenzi ephikisana ngokuphelele.
Futhi okokugcina, okubaluleke kakhulu, asikwazi ukuwavala ama-valve ngokungahleliwe futhi nganoma yisiphi isikhathi ... Ngempela, uma ngivala, ngokwesibonelo, ngokushesha ngemuva kokudla (ngemuva nje kokugcwalisa isilinda ngomoya), ngizoba nepiston egcwele umoya, okuzoba nzima kakhulu ukuwuhlanganisa kabusha: kubangela ukumelana ne-piston, kwenze kube nzima kakhulu ukuyichoboza ukuze iphinde ihlangane.
Ngakho-ke isu limi ngokulandelayo: sivala ama-valve lapho isilinda iphakathi nendawo yesigaba sokukhipha (lapho sikhipha amagesi wokukhipha nge-valve).
Ngakho-ke, sizoba nesilinda esigcwele igesi (ngakho-ke akunzima kakhulu ukusikhama), futhi ama-valve azovalwa. Ngakho-ke, amasilinda angasebenzi ahlanganisa amagesi e-exhaust egumbini lawo.
Ngokusobala, amasilinda amabili okuvala awekho kulesi sigaba ngasikhathi sinye, ngakho-ke ukuvalwa kuzokwenzeka ngezigaba ezimbili: ama-valve avinjelwe kusukela ngesikhathi isilinda siphakathi nendawo esigabeni sokukhipha (lapho ikhipha uhhafu wegesi oqukethwe kuzo).
Ikhamera iphusha i-valve, okuyisenzo sakudala njenganoma iyiphi imoto. Angizange ngibeke i-swing, kepha ngokuyisisekelo asinikezi amandla, siyabakhohlwa.
Ukwenza kungasebenzi i-cylinder maphakathi negesi yokukhipha:
Lapha i-cam ichemile ngakwesobunxele, ngakho-ke ayisacindezeli i-valve phansi ukuyivula. Manje sinesilinda esizosebenzisa isikhathi saso sicindezela futhi sandise amagesi okubamba abhajwe.
Lapha empilweni yangempela eTSI. Ngezansi sibona ama-actuator amabili kanye "nemihlahlandlela" yokuhambisa ikham kwesobunxele noma kwesokudla.
Umsebenzi wesilinda wokuvala
Eqinisweni (imoto ye-TSI ACT) sinesistimu kagesi ene-actuator ehlukumeza amakhamera e-valve (bona lapha ukuqonda) ukuze angabe esavula.
Lapho i-actuator isebenza, i-cam ayisasebenzi phambi kwe-valve ngakho-ke eyokugcina ayisasebenzi. Olunye uhlelo oluncintisanayo ukukhubaza izingalo ze-rocker (ingxenye ephakathi nendawo phakathi kwe-camshaft nama-valve). Ngakho-ke, le divayisi eguquguqukayo itholakala kuphela ngenhla kwamasilinda, ezinye zinokuphela "kwecamshaft" okujwayelekile nokweqile ngaphezulu kwamakhanda.
Ngale ndlela amasilinda awavalwa, amasilinda 2 no-3 esibonelweni sethu azobona ama-valve abo evimba kuphela kusukela lapho besesigabeni sokukhipha (maphakathi nalokhu ngenhla). Konke lokhu kulawulwa yi-elektroniki ngenxa yemininingwane enikezwe izinzwa.
Idrayivu (kwesokudla okuluhlaza okwesibhakabhaka) ikhubaza eyodwa yamasilinda. Enye iyalinda ukuthi ingene esigabeni sokukhipha ukuvala i-valve.
Thola amasilinda ama-4 asebenzayo ohlangothini oluhlukile. Lapha ungabona ngokusobala ukuthi i-cam (egqanyiswe ngombala oluhlaza) isuswe ngakwesobunxele bengalo ye-rocker. Ukusebenza lapha ukuletha phambili ngakwesokudla.
Ngakho-ke, ukusika amasilinda kuqukethe ama-valve okuvala ngesikhathi esithile, ungakhanyisi (Ukushisa kwe-spark plug), akusekho ukujova uphethiloli et modulate ukuvulwa kovemvane thatha umoya odingekayo kumasilinda ama-2, hhayi ama-4.
Ukonga uphethiloli okukhulu?
Ngokusika uhhafu wamasilinda, singaba nethemba lokulondolozwa kwemali enkulu (ngaphandle kokungabaza, singasho ngisho u-40% kuma-stop half). Ngeshwa, cha, sisesifundeni esingu-0.5 litres ngebanga elingamakhilomitha ayi-100 ... Amasilinda amabili akhubazekile asaya ngapha nangapha, futhi lokhu kudinga amandla. Ububanzi bokusetshenziswa kwedivayisi bukhawulelwe impela: i-torque ephansi (ukushayela okushodelwa yigazi). Ngamafuphi, ikakhulukazi kumjikelezo we-NEDC (noma i-WLTP), odinga amandla amancane, sizobona ukonga okukhulu kakhulu. Lokhu empeleni kuzobe kungathandeki kangako, yize kuzoncika kakhulu ohlotsheni lokusetshenziswa kwemoto yakho.
Ukuthembeka?
Uma ngabe le divayisi ayisiyona inkinga okwamanje, kusamele kuqashelwe ukuthi lokhu kuxakeka ngokuqondakalayo kuholela ethubeni lokwehluleka okungeziwe. Uma i-actuator ingasasebenzi, kungakhathaza, futhi ngoba akukho okuhlala unomphela ...
Yonke imibono nokuphendula
wokugcina amazwana athunyelwe:
AL (Usuku: 2021, 05:18:10)
Sawubona,
Ngine-LEON 3, 150 hp. ACT kusukela ngo-2016, 80000 km futhi ngijabule kakhulu ngalolu hlelo. Ngempela, njengoba kushiwo emazwini angaphambilini, ushintsho cishe alubonakali. Kukhona isithakazelo esincane edolobheni noma ezintabeni. I-2-cylinder passage yenziwa, ikakhulukazi, ngokusebenzisa umugqa owuketshezi. Lokhu kuyathakazelisa ikakhulukazi emigwaqweni emikhulu noma emigwaqweni emikhulu futhi sigcina i-130 km / h ngaphandle kwezinkinga ngamasilinda amabili kuphela. Mayelana nokusetshenziswa, ungazizwa kungaphezulu kakhulu kwe-2L / 0.5 oyikhombisile, ngicabanga. Okuwukuphela kwe-negetive umsindo okhencezayo ngesivinini esiphansi. Ngegiya le-100 noma lesithathu, uma ushintsha kusuka kumasilinda angu-3 kuya kwangu-4 ngesivinini esiphansi, kuzwakala umsindo, sengathi injini igijima ngesivinini esiphansi, nemisindo yokuchofoza ecasulayo. Umakhenikha wami akabonakali enendaba. Ingabe abanye abasebenzisi bangaqinisekisa ukuthi banesimo esifanayo?
ngemfudumalo
Il J. 1 ukusabela (kula) mazwana:
- Ukuphatha UMPHATHI WENDAWO (2021-05-19 11:55:47): Siyabonga ngempendulo yakho, engingathanda ukuyibona lapha.
Umsindo mhlawumbe ubangelwa amasilinda okukhipha umoya akhishwa (ama-valve avaliwe) njengakwimpompo enkulu yebhayisikili, ngakho-ke ... Ngakho-ke lokho kuzoba yinto ejwayelekile.
(Okuthunyelwe kwakho kuzobonakala ngaphansi kwamazwana ngemuva kokuqinisekiswa)
Bhala umbono
Ukhokha malini umshwalense wemoto?
