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I-automotive phase shifter, edla ngokubhekisa kwi-phase shifter kwinkqubo yexesha le-variable valve timing (VVT), yinxalenye ebalulekileyo kwindlela yokusebenza kwe-valve train ye-injini. Isetyenziselwa ukulungisa ngokuguquguqukayo amaxesha okuvula nokuvala kwe-intake okanye i-exhaust valves ukuze kuphuculwe ukusebenza kwe-injini, ukonga amafutha, kunye namanqanaba okukhupha umbane phantsi kweemeko ezahlukeneyo zokusebenza.
Umsebenzi wayo oyintloko kukutshintsha i-engile yesigaba esihambelanayo phakathi kwe-camshaft kunye ne-crankshaft ngokusekelwe kwiimeko zexesha langempela ezifana nesantya senjini, umthwalo, kunye nobushushu, ngaloo ndlela kuvumela ixesha levalvu eliguquguqukayo eliqhubekayo. Iinjini ezinexesha levalvu elimiselweyo azikwazi ukulinganisela i-torque yesantya esiphantsi kunye namandla esantya esiphezulu, ngelixa i-phase shifter, ngokulungiswa okukrelekrele, ivumela injini ukuba ifumane ukusebenza kakuhle kokungenisa kunye nokuphuma komoya kwiimeko ezahlukeneyo.
Inkcazo emfutshane yomgaqo wokusebenza
I-phase shifter idla ngokufakelwa kwisiphelo esingaphambili se-camshaft kwaye iqhagamshelwe kwi-timing chain okanye kwi-pulley. Ulwakhiwo lwayo olusisiseko luqulathe i-rotor eqhagamshelwe ngokuqinileyo kwi-camshaft kunye ne-stator eqhagamshelwe kwi-timing pulley. Uthotho lwee-oyile ezivaliweyo zenziwa phakathi kwe-rotor kunye ne-stator.
I-Hydraulic phase shifter (eyona iphambili): Ioyile yenjini, phantsi koxinzelelo lwepompo yeoyile, ihanjiswa ngokuchanekileyo kwigumbi eliphambili okanye elingasemva le-phase shifter ngevalvu yokulawula ioyile (ivalvu ye-OCV). Ngokulawula uxinzelelo lweoyile, i-rotor iyajikeleza xa ithelekiswa ne-stator, ngaloo ndlela itshintsha isigaba se-camshaft. Umzekelo, ukubonelela ngeoyile kwigumbi elingaphambili kunokwenza ivalvu ivuleke kwangethuba ukuze kwandiswe i-torque enesantya esiphantsi; ukubonelela ngeoyile kwigumbi elingasemva kunokulibazisa ukuvulwa kwevalvu ukuze kwandiswe amandla esantya esiphezulu.
I-Electric phase shifter (iteknoloji entsha): Umzekelo, i-electric phase shifter eyenziwe yiLuK isebenzisa isakhiwo somatshini esiqhutywa yimoto esine-axis ezintathu, esidibanisa ngokuthe ngqo i-camshaft, i-pulley, kunye ne-motor. Ngokulawula ngokuchanekileyo isantya semoto, ukujikeleza okuqhelekileyo phakathi kwe-camshaft kunye ne-pulley kuyafezekiswa, ngaloo ndlela kulungiswa ixesha levalvu. Esi sakhiwo asixhomekekanga kuxinzelelo lweoyile yenjini, sinesantya sokuphendula esikhawulezayo, ukuchaneka okuphezulu kolawulo, kwaye asichaphazeleki yi-viscosity yeoyile yenjini ebushushu obuphantsi.
Iingenelo eziphambili
• Ukuphucula amandla okukhupha: Lungisa i-engile yokugquma kwevalvu kwisantya esiphezulu senjini, yonyusa ivolumu yokungenisa, kwaye yonyusa amandla enjini.
• Phucula ukonga amafutha: Fikelela kwisiphumo seMiller cycle ngokulibazisa ukuvalwa kwevalvu yokungenisa xa imithwalo iphantsi, unciphise ilahleko zokumpompa.
• Ukunciphisa ukukhutshwa komoya: Ukutsha okupheleleyo kunciphisa ukuveliswa kweegesi eziyingozi (ezifana ne-CO, i-NOx, kunye ne-HC).
• Ukuphucula ukuguquguquka: Ingakumbi i-electrical phase shifter, iyakwazi ukuguquguquka ngakumbi kubushushu benjini kunye notshintsho lwemeko yokusebenza.
Ukucaciswa kokungaqondani okuqhelekileyo
• I-Phase shifter ≠ phase sensor: I-phase shifter yi-actuator, enoxanduva "lokulungisa"; ngelixa i-phase sensor (njenge-camshaft position sensor) yindlela yokuva, enoxanduva "lokujonga" indawo yokwenyani ye-camshaft kunye nokubuyisela isignali kwiyunithi yolawulo lwenjini (ECU) ukuze yenze ulawulo oluvaliweyo.
• I-Phase shifter ≠ camshaft variable phase controller: Eli gama lokugqibela lisetyenziswa ziimpawu ezifana ne-Audi kwisicwangciso sabo sokulawula inkqubo ye-VVT, kwaye icandelo layo eliphambili le-actuator yi-phase shifter.
Ngamafutshane, i-automotive phase shifter yenye yezona teknoloji ziphambili zeenjini zanamhlanje ukuze zisebenze ngokufanelekileyo, ngokucocekileyo, nangokusebenza kakuhle. Uphuhliso lwayo lutshintsha ukusuka kuhlobo lwe-hydraulic lwendabuko ukuya kuhlobo lombane oluchanekileyo noluthembekileyo.
Kwicandelo leemoto, igama elithi "phase shifter" lidla ngokubhekisa kwizinto ezimbini ezahlukeneyo ezisebenzayo, kwaye imisebenzi yazo ethile ixhomekeke kwinkqubo ezisetyenziswa kuyo.
• I-VVT phase shifter (inkqubo yexesha le-variable valve): Le yinxalenye ebalulekileyo kwinkqubo yolawulo lwenjini. Umsebenzi wayo ophambili kukulungisa ngokuguquguqukayo isigaba sokujikeleza se-camshaft ngokusekelwe kwiimeko zokusebenza ngexesha langempela lenjini (ezifana nesantya kunye nomthwalo). Ngokutshintsha amaxesha okuvula nokuvala iivalvu zokungenisa kunye/okanye zokukhupha, inokwenza ngcono ukusebenza kakuhle kokungenisa kunye nenkqubo yokutsha kwisilinda, ifezekise isiphumo sokuphucula amandla enjini, ukuphucula ukonga amafutha, kunye nokunciphisa ukukhutshwa komoya. Umlawuli wenkqubo yamandla eemoto (umlawuli we-voltage): Le nxalenye inoxanduva lokujonga nokulawula i-voltage yokukhupha yejenereyitha yemoto. Ngenxa yotshintsho kwisantya senjini, isantya sejenereyitha siyatshintshatshintsha, nto leyo ebangela i-voltage yokukhupha engazinzile. Umlawuli we-voltage ulawula i-magnetic current ngaphakathi kwejenereyitha ukuqinisekisa ukuba i-voltage yokukhupha ihlala izinzile kwixabiso elilinganisiweyo (ngesiqhelo malunga ne-14.0V). Oku kukhusela ngokufanelekileyo izixhobo zombane ezikwibhodi ekuguquguqukeni kwe-voltage kwaye inemisebenzi yokuthintela i-current yokutshaja ngokugqithisileyo kunye nokunqumla i-current ebuyela umva (i-backflow) ukukhusela ibhetri kunye nejenereyitha.
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Zhuo Meng Shanghai Auto Co., Ltd. uzimisele ukuthengisa iMG&MAXUSiinxalenye zeemoto zamkelekile ukuthenga.
