BMW da hydrogen: injin ƙonewa na ciki

Ayyukan kamfanin sun fara shekaru 40 da suka gabata tare da nau'in hydrogen na jerin 5

BMW ya dade da yin imani da motsin lantarki. A yau, ana iya la'akari da Tesla a matsayin ma'auni a wannan yanki, amma shekaru goma da suka wuce, lokacin da kamfanin Amurka ya nuna ma'anar wani dandamali na aluminum, wanda aka gane a cikin nau'i na Tesla Model S, BMW yana aiki sosai a kan Megacity. Aikin mota. An sayar da 2013 a matsayin BMW i3. Motar avant-garde ta Jamus tana amfani da ba kawai tsarin tallafi na aluminium tare da haɗaɗɗun batura ba, har ma da jikin da aka yi da polymers mai ƙarfafa carbon. Duk da haka, abin da Tesla ke gaban masu fafatawa da shi shi ne tsarinsa na musamman, musamman kan sikelin haɓaka batura don motocin lantarki - daga dangantaka da masana'antun lithium-ion cell zuwa gina manyan masana'antun baturi, ciki har da waɗanda ba su da aikace-aikacen lantarki. motsi.

Amma bari mu koma BMW domin, ba kamar Tesla da yawancin masu fafatawa da shi ba, har yanzu kamfanin na Jamus ya yi imani da motsin hydrogen. Kwanan nan, wata tawaga karkashin jagorancin mataimakin shugaban kamfanin samar da makamashin Hydrogen Fuel, Dokta Jürgen Gouldner, ta kaddamar da wani nau'in man fetur na I-Hydrogen Next, wani nau'i mai sarrafa kansa wanda aka yi amfani da shi ta hanyar ƙananan zafin jiki. A wannan lokaci ne ake cika shekaru 10 da kaddamar da aikin kera motocin kamfanin mai na BMW da kuma bikin cika shekaru 7 da yin hadin gwiwa da Toyota kan kwayoyin man fetur. Duk da haka, dogaro da BMW akan hydrogen ya koma shekaru 40 kuma ya fi "zazzabi".

Wannan shi ne sama da kwata na karni na ci gaban da kamfanin ke yi, inda ake amfani da hydrogen a matsayin man fetur na injunan konewa na ciki. Yawancin wannan lokacin, kamfanin ya yi imanin cewa injin konewar ciki mai ƙarfin hydrogen ya fi kusa da mabukaci fiye da tantanin mai. Tare da inganci na kusan kashi 60% da haɗin injin lantarki tare da inganci fiye da 90%, injin mai yana da inganci fiye da injin konewa na ciki da ke aiki akan hydrogen. Kamar yadda za mu gani a cikin layin da ke gaba, tare da allurarsu kai tsaye da turbocharging, injunan da aka rage a yau za su dace sosai don isar da hydrogen-idan an samar da ingantattun alluran da tsarin sarrafa konewa. Amma yayin da injunan konewa na ciki masu ƙarfin hydrogen suka fi rahusa fiye da tantanin mai da aka haɗa tare da baturin lithium-ion, yanzu ba sa kan ajanda. Bugu da ƙari, matsalolin motsi na hydrogen a cikin lokuta biyu sun wuce iyakar tsarin motsa jiki.

Duk da haka me yasa hydrogen?

Hydrogen wani muhimmin abu ne a yunƙurin bil'adama don amfani da ƙarin hanyoyin samar da makamashi kamar gada don adana kuzari daga rana, iska, ruwa da kuma biomass ta hanyar juya shi zuwa makamashin sunadarai. A cikin sauƙaƙan lafazi, wannan yana nufin cewa wutar lantarkin da aka samar ta waɗannan maɓuɓɓuka na halitta ba za a iya adana ta a cikin babban juzu'i ba, amma ana iya amfani da ita don samar da hydrogen ta hanyar narkewar ruwa zuwa iskar oxygen da hydrogen.

Tabbas, ana iya fitar da hydrogen daga tushen hydrocarbon da ba za a iya sabuntawa ba, amma wannan ya daɗe ba a yarda da shi ba yayin da ake amfani da shi azaman tushen makamashi. Babu shakka cewa matsalolin fasaha na samarwa, adanawa da sufuri na hydrogen suna iya warwarewa - a aikace, har ma a yanzu, ana samar da adadi mai yawa na wannan iskar kuma ana amfani da su azaman albarkatun ƙasa a cikin masana'antun sinadarai da petrochemical. A cikin waɗannan lokuta, duk da haka, tsadar hydrogen ba ta da kisa, tun da yake "narke" a kan tsadar kayan da ke ciki.

Koyaya, matsalar amfani da iskar gas a matsayin tushen makamashi kuma a cikin adadi mai yawa yana da ɗan rikitarwa. Masana kimiyya sun dade suna girgiza kawunansu don neman hanyar da za ta dace da man fetur, kuma karuwar motsin lantarki da hydrogen na iya kasancewa a cikin kusancin symbiosis. A cikin zuciyar duk wannan abu ne mai sauƙi amma mai matukar mahimmanci - hakar da amfani da hydrogen yana kewaye da yanayin yanayi na hadawa da lalata ruwa ... Idan dan Adam ya inganta da fadada hanyoyin samar da kayayyaki ta hanyar amfani da tushen halitta kamar makamashin hasken rana, iska da ruwa. ana iya samar da hydrogen kuma a yi amfani da shi a adadi mara iyaka ba tare da fitar da hayaki mai cutarwa ba.
samarwa

Fiye da tan miliyan 70 na tsarkakakken hydrogen a halin yanzu ana samar da shi a duniya. Babban albarkatun kasa don samarwar shi shine iskar gas, wanda ake sarrafa shi cikin tsarin da aka sani da "sake fasalin" (rabin jimillar). Arearamin yawa na hydrogen ana samar dasu ta wasu matakai kamar su electrolysis na mahaɗan chlorine, sashin shaƙuwa na mai mai yawa, gas gas, pyrolysis na gawayi don samar da coke, da sake fasalin mai. Ana amfani da kusan rabin samar da hydrogen a duniya don hada ammoniya (wanda ake amfani da shi azaman abinci a cikin samar da takin mai magani), a cikin matatar mai da kuma hada methanol.

Wadannan tsare-tsare na samarwa suna ɗaukar yanayin yanayi zuwa digiri daban-daban kuma, rashin alheri, babu ɗayansu da ke ba da madaidaicin ma'ana ga matsayin makamashi na yanzu - na farko saboda suna amfani da hanyoyin da ba za a iya sabuntawa ba, na biyu kuma saboda samarwa yana fitar da abubuwan da ba a so kamar carbon dioxide. Hanyar da ta fi dacewa don samar da hydrogen a nan gaba ita ce rushewar ruwa tare da taimakon wutar lantarki, wanda aka sani a makarantar firamare. Koyaya, rufe zagayowar makamashi mai tsafta a halin yanzu yana yiwuwa ne kawai ta hanyar amfani da na halitta musamman hasken rana da iska don samar da wutar lantarki da ake buƙata don lalata ruwa. A cewar Dr. Gouldner, fasahohin zamani "da aka haɗa" da tsarin iska da hasken rana, ciki har da ƙananan tashoshi na hydrogen, inda ake samar da karshen a kan wurin, wani babban sabon mataki ne a wannan hanya.
Adanawa

Ana iya adana hydrogen a cikin adadi mai yawa a duka matakan gas da ruwa. Ana kiran mafi girman irin wannan matattarar ruwa, wanda ake ajiye hydrogen a ɗan ƙaramin matsin lamba, ana kiranta da "mita masu gas". Matsakaici da ƙananan tankuna an daidaita su don adana hydrogen a matsi na sandar 30, yayin da ƙaramin tankuna na musamman (na'urori masu tsada waɗanda aka yi da ƙarfe na musamman ko kayan haɗin keɓaɓɓen fiber) suna riƙe da matsin lamba na 400 bar.
Hakanan za'a iya adana hydrogen a cikin wani lokaci na ruwa a -253 ° C kowace juzu'in juzu'in da ke ɗauke da makamashi sau 1,78 fiye da lokacin da aka adana shi a mashaya 700 - don cimma daidaitaccen adadin kuzari a cikin hydrogen mai ruwa a kowace juzu'in naúrar, gas ɗin dole ne a matsa har zuwa 1250 bar. Saboda mafi girman ƙarfin makamashi na hydrogen da aka sanyaya, BMW yana haɗin gwiwa tare da ƙungiyar masu shayarwa ta Jamus Linde don tsarinsa na farko, wanda ya ƙera na'urorin cryogenic na zamani don yin ruwa da adana hydrogen. Har ila yau, masana kimiyya suna ba da wasu, amma mafi ƙarancin amfani a halin yanzu, hanyoyin da za a adana hydrogen - alal misali, ajiya a ƙarƙashin matsin lamba a cikin gari na musamman na karfe, a cikin nau'i na hydrides na karfe, da sauransu.

Hanyoyin sadarwar Hydrogen tuni sun wanzu a yankunan da ke da yawan tsire-tsire da matatun mai. Gabaɗaya, dabarun yayi kama da na watsa gas, amma yin amfani da na ƙarshen don buƙatun hydrogen ba koyaushe bane. Koyaya, koda a cikin karnin da ya gabata, gidaje da yawa a cikin biranen Turai an kunna su da iskar gas mai ƙarancin bututu, wanda ya ƙunshi har zuwa kashi 50% na hydrogen kuma wanda ake amfani dashi azaman mai na injunan ƙone ciki na farko. Matsayi na fasaha na yanzu ya riga ya ba da izinin jigilar jigilar ruwa ta ruwa ta hanyar jiragen ruwa na yanzu, kwatankwacin waɗanda ake amfani da su don iskar gas.

BMW da injin ƙonewa na ciki

"Ruwa. Ƙarshen samfurin kawai na injunan BMW mai tsabta wanda ke amfani da hydrogen ruwa maimakon man fetur kuma yana ba kowa damar jin daɗin sababbin fasaha tare da lamiri mai tsabta."

Waɗannan kalmomin magana ce daga kamfen talla na kamfanin Jamus a farkon ƙarni na 745. Ya kamata a inganta sigar hydrogen mai saurin awa XNUMX na fitowar motar Bavaria. Na waje ne, saboda, a cewar BMW, miƙa mulki zuwa hanyoyin maye mai na hydrocarbon wanda masana'antar kera motoci ke ciyarwa tun daga farko zai buƙaci canji a cikin dukkanin kayayyakin masana'antu. A wancan lokacin, Bavaria sun sami kyakkyawar hanyar ci gaba ba cikin ƙwayoyin mai da ake tallata su ba, amma a cikin tura injunan ƙone ciki don aiki da hydrogen. Kamfanin BMW ya yi imanin cewa batun da ake maido da shi batun magancewa ne kuma tuni yana samun ci gaba sosai game da kalubalen tabbatar da ingancin aikin injiniya da kuma kawar da halin da yake ciki na gudu da amfani da tsaftataccen hydrogen. Nasarar da aka samu ta wannan hanyar ita ce saboda cancanta a fagen sarrafa lantarki ta hanyar sarrafa injiniya da kuma ikon amfani da tsarin mallakar BMW wanda ya mallaki kamfani don rarraba iskar gas mai sassauci Valvetronic da Vanos, ba tare da hakan ba zai yiwu a tabbatar da aikin yau da kullun na "injunan hydrogen".

Duk da haka, matakan farko na wannan jagorar sun samo asali ne tun a shekara ta 1820, lokacin da mai zane William Cecil ya ƙirƙiri injin da ke da makamashin hydrogen wanda ke aiki akan abin da ake kira "vacuum ka'idar" - makircin da ya bambanta da wanda daga baya ya ƙirƙira da injin ciki. konewa. A farkon haɓakar injunan konewa na ciki shekaru 60 bayan haka, majagaba Otto ya yi amfani da iskar gas ɗin da aka riga aka ambata da kuma kwal da aka samu tare da abun ciki na hydrogen kusan 50%. Duk da haka, tare da ƙirƙira na carburetor, amfani da man fetur ya zama mafi amfani da aminci, kuma man fetur na ruwa ya maye gurbin duk sauran hanyoyin da suka wanzu har yanzu. An gano kaddarorin hydrogen a matsayin man fetur shekaru da yawa bayan masana'antar sararin samaniya, wanda da sauri ya gano cewa hydrogen yana da mafi kyawun makamashi / yawan rabo na kowane mai da aka sani ga ɗan adam.

A watan Yulin 1998, Industryungiyar Masana'antar Mota ta Turai (ACEA) ta ba da kanta don rage fitar da hayaƙin CO2 don sabbin motocin da aka yi wa rajista a cikin Unionungiyar zuwa matsakaita na gram 140 a kowace kilomita daga 2008. A aikace, wannan yana nufin rage 25% na hayaƙi idan aka kwatanta da 1995 kuma yayi daidai da matsakaicin amfani da mai a cikin sabbin jiragen ruwa na kusan 6,0 l / 100 km. Wannan ya sa aikin ga kamfanonin motoci ke da matukar wahala kuma, a cewar masanan BMW, ana iya warware su ko dai ta amfani da ƙananan iska ko kuma cire carbon gaba ɗaya daga abubuwan mai. Dangane da wannan ka'idar, sinadarin hydrogen yana bayyana a dukkan darajarsa akan yanayin mota.
Kamfanin Bavaria ya zama kamfanin kera motoci na farko da ya fara kera motoci masu dauke da sinadarin hydrogen. Batu da tabbaci na iƙirarin Kwamitin Daraktocin BMW Burkhard Göschel, Memba na Hukumar BMW da ke da alhakin sabbin abubuwan ci gaba, cewa "kamfanin zai sayar da motocin hydrogen kafin jerin 7 ya ƙare," ya zama gaskiya. , Tare da Hydrogen 7 shine nau'i na bakwai na jerin da aka gabatar a cikin 2006 kuma yana da injin silinda 12 wanda aka ƙaddara a 260 hp wannan sakon ya zama gaskiya.

Niyyar tana da kyau sosai, amma da kyakkyawan dalili. BMW tana ta gwaji tare da injunan konewa na hydrogen tun a shekarar 1978, tare da 5-series (E12), an gabatar da sigar 1984-hour na E 745 a shekarar 23, kuma a ranar 11 ga Mayu, 2000, ya nuna keɓaɓɓiyar damar wannan madadin. Jirgin ruwa mai kayatarwa na 15 hp. E 750 "na mako" tare da injina masu amfani da lantarki mai amfani da silinda 38 sun gudanar da gudun fanfalaki mai nisan kilomita dubu 12, wanda ke nuna nasarar kamfanin da kuma alkawarin sabon fasaha. A cikin 170 da 000, wasu daga cikin waɗannan motocin sun ci gaba da shiga cikin zanga-zanga daban-daban don inganta ra'ayin hydrogen. Sa'annan wani sabon ci gaba ya zo bisa ga jerin 2001 na gaba, ta amfani da injin V-2002 na lita 7 na zamani kuma mai iya saurin gudu na 4,4 km / h, sannan sabon ci gaba ya biyo baya tare da injin V-212 mai silinda 12.

A cewar ra'ayin hukuma na kamfanin, dalilan da suka sa BMW sannan suka zabi wannan fasaha kan kwayoyin mai duka na kasuwanci ne da na kwakwalwa. Na farko, wannan hanyar zata buƙaci ƙaramin saka hannun jari idan har aka sami sauye-sauye na kayan masana'antu. Abu na biyu, saboda mutane sun saba da tsohuwar injin ƙone ciki, suna son shi kuma zai yi wuya su rabu da shi. Kuma na uku, saboda a lokaci guda, wannan fasaha tana haɓaka da sauri fiye da fasahar ƙwayar mai.

A cikin motocin BMW, ana adana hydrogen a cikin wani jirgin ruwa mai rufin asiri, irin nau'in kwalban thermos na fasaha na zamani wanda ƙungiyar Linder ta Jamus ta kera. A ƙananan yanayin ajiya, man fetur yana cikin yanayin ruwa kuma yana shiga injin a matsayin man fetur na al'ada.

Masu zanen kamfanin na Munich suna amfani da allurar man fetur a cikin nau'ikan abinci, kuma ingancin cakuda ya dogara da yanayin aikin injin. A cikin yanayin ɗaukar nauyi, injin yana gudana akan gaurayawan gauraye masu kama da dizal - kawai adadin man da aka yi allura ya canza. Wannan shi ne abin da ake kira "ikon inganci" na cakuda, wanda injin yana gudana tare da iska mai yawa, amma saboda ƙananan nauyin, an rage yawan ƙwayar nitrogen. Lokacin da ake buƙatar gagarumin iko, injin yana fara aiki kamar injin mai, yana motsawa zuwa abin da ake kira "ka'idodin ƙididdiga" na cakuda da kuma gaurayawan al'ada (ba jingina). Wadannan canje-canjen suna yiwuwa, a gefe guda, godiya ga saurin sarrafa tsarin lantarki a cikin injin, kuma a gefe guda, godiya ga sassauƙan aiki na tsarin kula da rarraba gas - Vanos "biyu", yana aiki tare da haɗin gwiwa. tare da tsarin kula da abinci na Valvetronic ba tare da maƙura ba. Ya kamata a la'akari da cewa, a cewar injiniyoyin BMW, tsarin aiki na wannan ci gaba shine kawai matsakaicin mataki a cikin ci gaban fasaha da kuma cewa a nan gaba injuna za su motsa don jagorantar allurar hydrogen a cikin silinda da turbocharger. Ana sa ran cewa yin amfani da waɗannan hanyoyin zai haifar da haɓakar haɓakar aikin motar idan aka kwatanta da injin mai irin wannan kuma zuwa haɓaka gabaɗayan ingancin injin konewa na ciki da fiye da 50%.

Gaskiya mai ban sha'awa mai ban sha'awa shine cewa tare da sababbin abubuwan da suka faru a cikin injunan konewa na "hydrogen" na ciki, masu zane-zane a Munich suna shiga filin man fetur. Suna amfani da irin waɗannan na'urori don kunna wutar lantarki a cikin motoci, suna kawar da baturi na yau da kullun. Godiya ga wannan mataki, ƙarin tanadin man fetur yana yiwuwa, tun da injin hydrogen ba dole ba ne ya fitar da alternator, kuma tsarin lantarki na kan jirgin ya zama mai cikakken iko kuma mai zaman kansa daga hanyar tuƙi - yana iya samar da wutar lantarki ko da injin ba ya aiki. kuma ana iya inganta samarwa da amfani da makamashi gabaɗaya. Kasancewar yawan wutar lantarki kamar yadda ake buƙata don kunna famfun ruwa, famfunan mai, na'urorin haɓaka birki da na'urorin waya za a iya samar da su yanzu kuma yana fassara zuwa ƙarin tanadi. Duk da haka, a cikin layi daya da duk waɗannan sababbin abubuwa, tsarin allurar mai (man fetur) a kusan kusan ba a sami wasu canje-canje masu tsada ba.

Don haɓaka fasahar hydrogen a cikin Yuni 2002, BMW Group, Aral, BVG, DaimlerChrysler, Ford, GHW, Linde, Opel, MAN sun kirkiro shirin haɗin gwiwar CleanEnergy, wanda ya fara aikinsa tare da haɓaka tashoshin cika LPG. da matsawa hydrogen. A cikin su, ana samar da wani sinadarin hydrogen a wurin ta amfani da wutar lantarki ta hasken rana, sannan a matse shi, kuma adadi mai yawa yana fitowa daga tashoshin samarwa na musamman, kuma duk tururi daga lokacin ruwa ana canja shi kai tsaye zuwa tafkin gas.
BMW ta ƙaddamar da wasu ayyukan haɗin gwiwa da yawa, gami da kamfanonin mai, daga cikin waɗanda mahalarta ke aiki sune Aral, BP, Shell, Total.
Koyaya, me yasa BMW ke watsar da waɗannan hanyoyin fasaha kuma har yanzu suna mai da hankali akan ƙwayoyin mai, zamu gaya muku a wani labarin a cikin wannan jerin.

Hydrogen a cikin injunan ƙone ciki

Yana da ban sha'awa a lura cewa saboda yanayin jiki da sinadarai na hydrogen, yana da wuta fiye da man fetur. A aikace, wannan yana nufin ƙarancin ƙarfin farko da ake buƙata don fara aikin konewa a cikin hydrogen. A daya bangaren kuma, injinan hydrogen cikin sauki na iya amfani da hadakar “marasa kyau” – wani abu da injinan man fetur na zamani ke samu ta hanyar fasahohi masu sarkakiya da tsada.

Zafin da ke tsakanin barbashi na cakuda hydrogen-iska ba shi da raguwa sosai, kuma a lokaci guda, zafin wutar lantarki ta atomatik ya fi girma, kamar yadda ƙimar hanyoyin konewa idan aka kwatanta da mai. Hydrogen yana da ƙananan yawa kuma yana da ƙarfi mai ƙarfi (yiwuwar barbashi shiga wani gas - a cikin wannan yanayin, iska).

Shine ƙaramin ƙarfin kunnawa da ake buƙata don ƙone kansa wanda shine ɗayan manyan ƙalubale a cikin sarrafa ƙonewa a cikin injunan hydrogen, saboda cakuda na iya sauƙaƙewa ba tare da ɓata lokaci ba saboda haɗuwa da wurare mafi zafi a cikin ɗakin konewa da juriya bayan sarkar abubuwan sarrafawa gaba ɗaya. Gujewa wannan haɗarin shine ɗayan manyan ƙalubale a cikin ƙirar injina na hydrogen, amma ba abu ne mai sauƙi ba don kawar da sakamakon gaskiyar cewa cakudawar haɗuwa da ke tarwatse yana matsowa kusa da ganuwar silinda kuma yana iya shiga cikin ƙananan gibi. misali, tare da rufaffiyar bawuloli ... Duk wannan dole ne a yi la'akari da shi cikin ƙirar waɗannan injunan.

Babban yanayin zafin jiki na autoignition da babban octane mai lamba (kimanin 130) suna ba da damar ƙaruwa a yanayin matse injin, sabili da haka, ingancinsa, amma kuma akwai haɗarin maye gurbin hydrogen akan haɗuwa da ɓangaren da ya fi zafi. a cikin silinda Amfani da babban yaduwar karfin hydrogen shine yiwuwar cakudawa cikin sauki tare da iska, wanda a yayin lalacewar tanki yana bada tabbacin yaduwar man da sauri da aminci.

Kyakkyawan cakuda iska-hydrogen don konewa yana da rabo na kusan 34: 1 (don man fetur wannan rabo shine 14,7: 1). Wannan yana nufin cewa lokacin da aka haɗa nau'in hydrogen da man fetur a farkon yanayin, ana buƙatar fiye da sau biyu. A lokaci guda, cakuda hydrogen-air yana ɗaukar sararin samaniya sosai, wanda ke bayyana dalilin da yasa injunan hydrogen ba su da ƙarfi. A zalla dijital kwatanci na rabo da kuma kundin ne quite balaga - da yawa na hydrogen shirye don konewa ne 56 sau kasa da yawa na fetur tururi ... Duk da haka, ya kamata a lura cewa, a general, hydrogen injuna iya aiki a kan iska gaurayawan. . hydrogen a cikin ma'auni har zuwa 180: 1 (watau tare da gaurayawan "mummunan" sosai), wanda hakan yana nufin cewa injin yana iya aiki ba tare da maƙura ba kuma yana amfani da ka'idar injunan diesel. Ya kamata a kuma ambaci cewa hydrogen shine jagorar da ba a jayayya ba a kwatanta tsakanin hydrogen da gas a matsayin tushen makamashi mai yawa - kilogiram na hydrogen yana da kusan sau uku fiye da makamashi a kowace kilogram na fetur.

Kamar yadda yake tare da injunan fetur, ana iya yin allurar hydrogen mai ruwa kai tsaye a gaban bawuloli a cikin manifolds, amma mafi kyawun bayani shine allurar kai tsaye yayin bugun bugun jini - a wannan yanayin, ikon zai iya wuce na injin mai kwatankwacinsa da kashi 25%. Wannan shi ne saboda man fetur (hydrogen) ba ya kawar da iska kamar yadda yake da man fetur ko injin dizal, yana barin ɗakin konewa ya cika da iska kawai (mafi mahimmanci fiye da yadda aka saba). Bugu da ƙari, ba kamar injunan gas ba, hydrogen ba ya buƙatar jujjuyawar tsari, tun da hydrogen ba tare da wannan ma'auni yana yaduwa da iska sosai. Saboda nau'ikan ƙonawa daban-daban a cikin sassa daban-daban na Silinda, yana da kyau a shigar da matosai guda biyu, kuma a cikin injunan hydrogen, yin amfani da na'urorin lantarki na platinum bai dace ba, tunda platinum ya zama mai haɓakawa wanda ke haifar da iskar gas ko da a yanayin zafi kaɗan. .

Mazda zaɓi

Kamfanin Mazda na Japan kuma yana nuna nau'in injinsa na hydrogen, a cikin nau'in jujjuyawar a cikin motar wasanni ta RX-8. Wannan ba abin mamaki ba ne, tun da fasalin fasalin injin Wankel ya dace sosai don amfani da hydrogen a matsayin mai.
Ana ajiye gas ɗin a ƙarƙashin babban matsin lamba a cikin tanki na musamman kuma ana saka man fetur kai tsaye cikin ɗakunan konewa. Saboda gaskiyar cewa a cikin yanayin injina masu juyawa, yankunan da allura da konewa ke gudana sun bambanta, kuma yanayin zafin jiki a cikin ɓangaren abincin yana ƙasa, matsala tare da yiwuwar ƙonewar da ba a sarrafawa ba ta ragu sosai. Injin Wankel kuma yana ba da wadatattun ɗakuna don allura guda biyu, waɗanda ke da mahimmanci don yin odar mafi kyawun hydrogen.

H2R

H2R samfurin wasan motsa jiki ne mai aiki wanda injiniyoyin BMW suka gina kuma injin silinda mai ƙarfi 12 ke ƙarfafa shi wanda ya kai matsakaicin fitarwa na 285 hp. lokacin aiki tare da hydrogen. Godiya gare su, samfurin gwaji yana haɓaka daga 0 zuwa 100 km / h a cikin dakika shida kuma ya kai babban gudun kilomita 300. Injin H2R ya dogara ne akan daidaitattun saman da aka yi amfani da shi a cikin man fetur na 760i kuma ya ɗauki watanni goma kawai don haɓakawa. .

Don hana konewar ba zato ba tsammani, ƙwararrun Bavaria sun ɓullo da wata dabara ta musamman don kwarara da hawan allura a cikin ɗakin konewa, ta amfani da yuwuwar da tsarin canjin bawul ɗin injin ya samar. Kafin cakuda ya shiga cikin silinda, ana sanyaya na ƙarshe ta iska, kuma ana yin ƙonewa ne kawai a tsakiyar matattu - saboda yawan konewa tare da man hydrogen, ba a buƙatar ci gaba da ƙonewa.