Bayan ziyartar injectors na Piezo, an ƙaddamar da Autopédia da Razão Automóvel a yau ga wani babi na wannan babi na kanikanci: injin Wankel.
Shin sunan Felix Wankel ya saba muku? A'a? To, a lokacin, Mista Wankel injiniyan Jamus ne wanda ke son kawo sauyi ga masana'antar motoci. Wankel bai yi murabus ba ga kafa ingin piston kuma ya yanke shawarar zayyana madaidaicin madadin injin injin na yanzu. Aiki mai wahala daga farko.
A cikin 1951, tare da haɗin gwiwar NSU Motorenwerke (daya daga cikin kamfanonin da suka haifar da Audi), Wankel ya fara abin da zai zama mafi kyawun aikinsa: injin Wankel. Bayan shekaru 13 na tweaks, gyare-gyare da kuma wasu rudani a tsakani, NSU Spider ya bayyana: motar farko da aka yi amfani da ita ta injin jujjuyawar Wankel. Wannan injin da Wankel ya so ya ba duniya mamaki.
Kamar injunan piston mai bugun bugun jini - bari mu manta da injinan zagayowar bugun jini don hakan, to? - An rage aikin injin Wankel zuwa matakai hudu: shigarwa, matsawa, fashewa da shayewa. Koyaya, waɗannan an yi su daban da injin piston. Toshe Wankel da gaske an yi shi ne da guda uku (e, guda uku): na'ura mai juyi, karar rotor da camshaft. Babu maɓuɓɓugan ruwa, bawul, camshafts da sauran abubuwan motsi. Ci gaba da sauƙi!
Epitrochoid – a’a, ba kawai na yi atishawa ba… – wannan ita ce kalmar da ke bayyana sifar lamarin da ke dauke da rotor na injin Wankel triangular. Matakan canza makamashi suna faruwa a cikin yankuna uku da aka kafa ta sararin samaniya tsakanin rotor da shari'ar (duba hoto). Motsin madauwari da rotor ke yi ana wuce shi zuwa camshaft, mai kama da camshaft, wanda hakan ke aika kuzari zuwa akwatin gear.
Rashin amfani
- Amfani: ingancin wannan nau'in injin yana ƙasa da na injunan piston. Injin konewa na ciki suna canza mai zuwa makamashin injina da zafi. A game da tubalan Wankel, ƙarin makamashi yana ɓarna a cikin yanayin zafi tun lokacin da yanayin sararin samaniyar injin ɗin ya fi girman yankin konewa na injunan piston.
- Torque: A ƙananan revs, injin Wankel suna da ƙarfi iri ɗaya da… tururuwa. Wannan shi ne saboda hanyar da iskar gas, bayan kunnawa, fadadawa. A cikin injin fistan, iskar gas suna faɗaɗa ta hanya ɗaya, suna tura piston a cikin motsi na layi. Dangane da injunan rotary, iskar gas ɗin suna faɗaɗa ta hanyoyi daban-daban, suna tura rotor a cikin motsi marar layi wanda baya amfani da makamashin da aka samar shima. Duk da haka, a babban gudu, rashin ƙarfi na rotor yana rage wannan rashi.
Amfani
- Smoothness: sabanin injin gargajiya, babu jujjuya motsi kamar a cikin fistan na sama-ƙasa, akwai motsin jujjuyawar da aka faɗi wanda ke ba da aiki mai sauƙi.
- Adadin sassa: idan aka kwatanta da injin juzu'i, ya fi ƙanƙanta, wanda ke fassara, aƙalla a ka'idar, zuwa mafi girman dogaro (idan ba don hatimin Apex ba…)
- Nauyi da Girma: Injin Wankel sun fi sauƙi kuma sun fi ƙanƙanta fiye da injunan piston. Wannan a fili yana ba da damar rage nauyin motar da kuma rage tsakiyar nauyi, don haka inganta yanayin motar gaba ɗaya.
- CV vs. "Mauyawa": lokacin da kake tunani game da ƙarfin dawakai na injin da ke da 1300cc, wane lamba ya bayyana? 90 hp? 120 hp? 140 hp? A'a. Yaya game da 240 hp? Ee, Mazda RX-8 yana samar da 240hp tare da 1300cc, babu turbos. Irin wannan gaskiyar ba tabo ce kawai.
- Sauti: Waƙoƙin RPM 10,000 na injin Wankel yana da haske kawai.
Alamar Tarihi Injin Wankel:
Mercedes-Benz C111
An ƙirƙira shi a cikin 1968, C111 wani bincike ne da alamar Stuttgart ta yi don kera da tallan motocin da ke da ƙarfi ta hanyar jujjuyawa. Lokacin da aka nuna wa duniya a cikin 1969 a wasan kwaikwayo na Frankfurt, ya haifar da sha'awar da sauri saboda sababbin fasaha da ƙira mai ƙarfi. Hakanan fa'idodin sun yi kyau: 280 hp, 260km/h da 5 seconds daga 0-100km/h.
Mazda 787b
A cikin 1991, Mazda ya zama alamar motar Japan daya tilo da ta lashe sa'o'i 24 na Le Mans, haka kuma ita kadai ce ta lashe gasar ba tare da yin amfani da injin fistan ba, abubuwan da har yanzu suka rage a yau. Motar da aka yi amfani da ita ita ce babbar 787b, mai nauyin kilogiram 830, 700hp da ƙarar ƙara. Domin lokacin '92, an dakatar da injunan Wankel a matsayin babban abin dogaro da ingancinsu (eh, a sikelin 700hp rotary injuna sun fi injunan juzu'i) ana ɗaukar su a matsayin hasara ga sauran masu fafatawa. Bayan gasar, injiniyoyin Mazda sun tarwatsa injin tare da hasashen cewa zai ci gaba da yin wasu sa'o'i 24 ba tare da wata matsala ba. Labari yana da cewa matsalar kawai 787b ya samu a duk lokacin tseren ita ce fashewar kwan fitila…
Al'ada
Mazda ita ce kawai alamar da a baya-bayan nan ta sayar da motoci masu irin wannan injin, tare da jaddada RX-7 da RX-8, don haka ba abin mamaki ba ne cewa an halicci wata ƙungiya ta musamman a kusa da waɗannan nau'i biyu (tafi). Dominic Toretto tare da ja RX-7 shima ya ba da ɗan taimako). Abokan mu na Aussies, saboda wasu dalilai, sun ƙaunaci injin Wankel kuma sun haɓaka ƙungiyoyi daban-daban, kulake da kuma bita da aka sadaukar da su ga dabbobin rotary kuma ba shakka ba a bar tseren mita 400 daga wannan ƙungiyar ba. Rikodin na yanzu yana tsaye a hanyar 6.475 seconds a wani abu kamar 360km / h. Wani wasan da bai bar Wankels ba shine Drift. Al'amarin Australiya na shaharar Mad Mike, tare da na'ura mai juyi hudu MadBull RX-7, yana korar masu sauraro da abubuwan shaye-shaye akan wuta.
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