{"id":8841,"date":"2014-08-24T22:37:03","date_gmt":"2014-08-24T20:37:03","guid":{"rendered":"http:\/\/mixmotor.eu\/?p=8841"},"modified":"2014-08-24T22:37:36","modified_gmt":"2014-08-24T20:37:36","slug":"prvy-diesel-s-nanoslide-a-piestami-z-ocele-pre-osobne-auta","status":"publish","type":"post","link":"https:\/\/mixmotor.eu\/de\/8841\/prvy-diesel-s-nanoslide-a-piestami-z-ocele-pre-osobne-auta","title":{"rendered":"Prv\u00fd diesel s nanoslide a piestami z ocele pre osobn\u00e9 aut\u00e1"},"content":{"rendered":"

Inova\u010dnou technikou d\u00e1va Mercedes-Benz dieselovej technike pre osobn\u00e9 automobily op\u00e4\u0165 impulzy, ktor\u00e9 ur\u010duj\u00fa smer bud\u00facnosti. Priekopn\u00edk dieselov\u00fdch motorov zo Stuttgartu ako prv\u00fd na svete nahr\u00e1dza hlin\u00edkov\u00e9 piesty, be\u017en\u00e9 v dieselov\u00fdch motoroch pre osobn\u00e9 automobily, za novovyvinut\u00fa gener\u00e1ciu high-tech piestov z ocele. V kombin\u00e1cii s inovat\u00edvnou technol\u00f3giou klznej dr\u00e1hy piestov NANOSLIDE\u00ae\u00a0prin\u00e1\u0161a v\u00fdhody e\u0161te ni\u017e\u0161ej spotreby paliva a e\u0161te ni\u017e\u0161\u00edch emisi\u00ed CO2<\/span><\/sub>.<\/p>\n

V roku 1936 predstavil Mercedes-Benz svetu prv\u00fd osobn\u00fd automobil s dieselov\u00fdm motorom a prevzal tak na seba rolu priekopn\u00edka v dieselov\u00fdch motoroch. T\u00fato ved\u00facu poz\u00edciu stuttgartsk\u00ed motorov\u00ed technici v nasleduj\u00facich desa\u0165ro\u010diach d\u00f4sledne podlo\u017eili mno\u017estvom technick\u00fdch inov\u00e1ci\u00ed, ktor\u00e9 v rozhoduj\u00facej miere prispeli k tomu, \u010d\u00edm je dieselov\u00fd motor v osobn\u00fdch automobiloch dnes: v\u00fdkonn\u00fd a predsa \u00fasporn\u00fd \u2013 jedn\u00fdm slovom: efekt\u00edvny.<\/p>\n

Motorov\u00ed in\u017einieri teraz op\u00e4\u0165 prid\u00e1vaj\u00fa na efekt\u00edvnosti. V septembri 2014 v dieselovom motore V6 modelu Mercedes-Benz E 350 BlueTEC osl\u00e1via svetov\u00fa premi\u00e9ru nov\u00e9 high-tech piesty z ocele v s\u00e9riovo vyr\u00e1banom osobnom automobile. Okrem in\u00e9ho v\u010faka tejto technickej inov\u00e1cii spotrebuje sedan pri rovnakom v\u00fdkone (190 kW\/258 k) u\u017e iba 5,0 litra motorovej nafty na 100 kilometrov \u2013 potenci\u00e1l \u00faspory, podmienen\u00fd oce\u013eov\u00fdm piestom, pritom predstavuje pribli\u017ene tri percent\u00e1.<\/p>\n

Oce\u013eov\u00e9 piesty s\u00fa v s\u00fa\u010dasnosti zna\u010dne roz\u0161\u00edren\u00e9 v motoroch \u00fa\u017eitkov\u00fdch vozidiel v kombin\u00e1cii s \u0165a\u017ekou k\u013eukovou skri\u0148ou zo sivej liatiny, zatia\u013e \u010do v pr\u00edpade dieselov\u00fdch motorov pre osobn\u00e9 automobily sa za tie roky stali \u0161tandardom hlin\u00edkov\u00e9 piesty. \u00daplne novovyvinut\u00e9 oce\u013eov\u00e9 high-tech piesty z dielne Mercedes-Benz s\u00fa v dokonalej harm\u00f3nii s modernou, ove\u013ea \u013eah\u0161ou hlin\u00edkovou skri\u0148ou motora a viac razy ocenenou technol\u00f3giou klznej dr\u00e1hy piestov NANOSLIDE\u00ae, vyvinutou zna\u010dkou Mercedes-Benz<\/p>\n

Vyu\u017ei\u0165 v\u00fdhody materi\u00e1lu<\/strong><\/p>\n

Oce\u013e a hlin\u00edk sa svojimi vlastnos\u0165ami v\u00fdrazne odli\u0161uj\u00fa: oce\u013e sa v teple roz\u0165ahuje menej ako hlin\u00edk, hor\u0161ie odv\u00e1dza teplo a je raz tak \u0165a\u017ek\u00e1. Na prv\u00fd poh\u013ead sa preto kombin\u00e1cia hlin\u00edkovej skrine a oce\u013eov\u00fdch piestov jav\u00ed ako problematick\u00e1. In\u017einieri z Mercedes-Benz v nej v\u0161ak predsa objavili ukryt\u00e9 \u0161ance bud\u00facnosti t\u00fdm, \u017ee s mimoriadnou v\u00fdhodou vyu\u017eili o\u010dividn\u00e9 rozdiely vo vlastnostiach t\u00fdchto materi\u00e1lov.<\/p>\n

Skuto\u010dnos\u0165, \u017ee oce\u013eov\u00e9 piesty maj\u00fa iba pribli\u017ene \u0161tvrtinov\u00fa teplotn\u00fa roz\u0165a\u017enos\u0165 v porovnan\u00ed s hlin\u00edkov\u00fdmi piestami vyu\u017eili na to, aby tesnej\u0161ie dimenzovali oce\u013eov\u00fd piest v hlin\u00edkovej skrini, tak\u017ee spo\u010diatku sed\u00ed v klznej dr\u00e1he piestu ve\u013emi tesne. Ke\u010f sa v\u0161ak po\u010das prev\u00e1dzky zv\u00fd\u0161i teplota, hlin\u00edkov\u00e1 skri\u0148a sa roztiahne viac ako oce\u013eov\u00e9 piesty \u2013 n\u00e1sledkom je v\u00e4\u010d\u0161ia tolerancia piestu vo valci a t\u00fdm aj ni\u017e\u0161ie trenie. Ke\u010f\u017ee iba skupina piest\/klzn\u00e1 dr\u00e1ha sp\u00f4sobuje 40 a\u017e 50 percent mechanick\u00e9ho trenia, otvoril sa tu d\u00f4le\u017eit\u00fd potenci\u00e1l zv\u00fd\u0161enia efekt\u00edvnosti.<\/p>\n

Pevnej\u0161ie, men\u0161ie, \u013eahk\u00e9<\/strong><\/p>\n

Sk\u00f4r pou\u017e\u00edvan\u00e9 oce\u013eov\u00e9 piesty v\u0161ak boli m\u00e1lo vhodn\u00e9 na kombin\u00e1ciu s hlin\u00edkovou skri\u0148ou motora. Mercedes-Benz preto skoncipoval piesty \u00faplne nanovo. Modern\u00e9 vyhotovenie oce\u013eov\u00fdch piestov, ktor\u00e9 s\u00fa teraz prv\u00fd raz s\u00e9riovo pou\u017eit\u00e9 vo vidlicovom dieselovom \u0161es\u0165valci v E 350 BlueTEC v hlin\u00edkovej k\u013eukovej skrini s technol\u00f3giou klznej dr\u00e1hy piestov NANOSLIDE\u00ae, s\u00fa high-tech v\u00fdrobky, ukovan\u00e9 z kvalitnej, mimoriadne pevnej ocele. To znamen\u00e1 ve\u013ek\u00fa v\u00fdzvu pre dod\u00e1vate\u013eov piestov, preto\u017ee nov\u00e9, extr\u00e9mne pevn\u00e9 ocele s\u00fa rovnako n\u00e1ro\u010dn\u00e9 vo v\u00fdrobe.
\nZv\u00fd\u0161en\u00e1 n\u00e1ro\u010dnos\u0165 sa v\u0161ak vyplat\u00ed, preto\u017ee vy\u0161\u0161ia pevnos\u0165 modernej ocele umo\u017e\u0148uje kompaktn\u00fa kon\u0161trukciu piestov. Takto mo\u017eno takmer \u00faplne kompenzova\u0165 aj pribli\u017ene trojn\u00e1sobne vy\u0161\u0161iu hustotu materi\u00e1lu. Inovat\u00edvne oce\u013eov\u00e9 piesty, ktor\u00e9 bud\u00fa v bud\u00facnosti pracova\u0165 v \u0161iestich spa\u013eovac\u00edch komor\u00e1ch \u0161v\u00e1bskeho dieselov\u00e9ho motora V6, s\u00fa v skuto\u010dnosti a\u017e o 13 milimetrov ni\u017e\u0161ie, ako ich doteraj\u0161ie hlin\u00edkov\u00e9 n\u00e1protivky (hlin\u00edkov\u00e9 piesty v dieselovom V6 motore s\u00fa vysok\u00e9 pribli\u017ene 71,6 milimetrov, oce\u013eov\u00e9 piesty u\u017e iba pribli\u017ene 58,6 milimetrov). V\u010faka tejto zmenenej geometrii a inteligentnej kon\u0161trukcii hmotnos\u0165 jednotky piestov, piestnych \u010dapov a kr\u00fa\u017ekov dosahuje \u00farove\u0148 vyhotovenia s hlin\u00edkov\u00fdmi piestmi. Mercedes-Benz tak dok\u00e1zal takmer \u00faplne kompenzova\u0165 hmotnostn\u00fa nev\u00fdhodu ocele a e\u0161te aj dosiahnu\u0165 pevnostn\u00fa rezervu pre bud\u00face vy\u0161\u0161ie \u0161pi\u010dkov\u00e9 tlaky.<\/p>\n

Vy\u0161\u0161ia \u00fa\u010dinnos\u0165, ni\u017e\u0161ia spotreba<\/strong><\/p>\n

V\u010faka pou\u017eitiu oce\u013eov\u00fdch piestov zlep\u0161ili in\u017einieri aj \u00fa\u010dinnos\u0165. Preto\u017ee v\u010faka ni\u017e\u0161ej teplotnej vodivosti ocele v porovnan\u00ed s hlin\u00edkom nast\u00e1vaj\u00fa v spa\u013eovacom priestore vy\u0161\u0161ie teploty. T\u00fdm rastie vznietivos\u0165 paliva a doba jeho horenia sa zn\u00ed\u017ei. V\u00fdsledkom je ni\u017e\u0161ia spotreba a emisia \u0161kodliv\u00edn. Ni\u017e\u0161iu teplotn\u00fa vodivos\u0165 ocele zoh\u013eadnil Mercedes-Benz kon\u0161truk\u010dn\u00fdmi prisp\u00f4sobeniami, napr\u00edklad zmenen\u00fdmi chladiacimi kan\u00e1lmi v piestoch.<\/p>\n

Prax dokazuje, \u017ee inovat\u00edvne oce\u013eov\u00e9 piesty optimalizuj\u00fa termodynamick\u00e9 vlastnosti a s\u00fa\u010dasne v\u00fdrazne zni\u017euj\u00fa trenie. Merania okrem toho uk\u00e1zali, \u017ee v\u00fdrazn\u00e9 zn\u00ed\u017eenie spotreby je dosahovan\u00e9 najm\u00e4 v ka\u017edodenne vyu\u017e\u00edvanom spodnom a strednom rozsahu ot\u00e1\u010dok.<\/p>\n

V\u00fdhoda ocele<\/strong><\/p>\n

Do bud\u00facnosti vidia motorov\u00ed in\u017einieri z Mercedes-Benz aj \u010fal\u0161ie v\u00fdhody v pou\u017eit\u00ed oce\u013eov\u00fdch high-tech piestov:<\/p>\n

\u2022\u00a0Oce\u013e umo\u017e\u0148uje nielen ni\u017e\u0161ie dimenzovanie piestu, z\u00e1rove\u0148 pon\u00faka vy\u0161\u0161ie rezervy v porovnan\u00ed s mechanick\u00fdmi nam\u00e1haniami. To je v\u00fdhodn\u00e9 najm\u00e4 pre \u010fal\u0161ie koncepcie downsizingu.<\/p>\n

\u2022\u00a0Oce\u013eov\u00e9 piesty s\u00fa pevnej\u0161ie ako hlin\u00edkov\u00e9, nimi vybaven\u00fd dieselov\u00fd motor m\u00f4\u017ee pracova\u0165 s vy\u0161\u0161\u00edmi teplotami a dosiahnu\u0165 tak vy\u0161\u0161iu termodynamick\u00fa \u00fa\u010dinnos\u0165.<\/p>\n

\u2022\u00a0Ke\u010f\u017ee motorov\u00ed in\u017einieri vzh\u013eadom na ni\u017e\u0161iu teplotn\u00fa roz\u0165a\u017enos\u0165 v porovnan\u00ed s hlin\u00edkom dok\u00e1zali oce\u013eov\u00fdmi piestami zn\u00ed\u017ei\u0165 medzeru medzi stenou valca a piestom a\u017e po prv\u00fd piestny kr\u00fa\u017eok, vznik\u00e1 menej \u0161kodliv\u00edn a surov\u00fdch emisi\u00ed.<\/p>\n

D\u00f4sledn\u00fd \u010fal\u0161\u00ed v\u00fdvoj<\/strong><\/p>\n

Inovat\u00edvnymi oce\u013eov\u00fdmi piestami Mercedes-Benz op\u00e4\u0165 d\u00f4sledne zdokonalil techniku dieselov\u00e9ho motora. To, \u017ee stuttgartsk\u00ed in\u017einieri bez prestania pracuj\u00fa na perspekt\u00edvnosti dieselov\u00e9ho motora, \u010dasto dok\u00e1zali u\u017e v minulosti a osved\u010dili sa tak ako st\u00e1li priekopn\u00edci dieselov\u00e9ho motora.<\/p>\n

Napr\u00edklad dieselov\u00fd motor V6, ktor\u00fd teraz ide v E 350 BlueTEC do s\u00e9riovej v\u00fdroby s nov\u00fdmi oce\u013eov\u00fdmi piestami, od svojho prv\u00e9ho vyst\u00fapenia v roku 2008 vo W212 absolvoval u\u017e viacer\u00e9 kroky zdokonalenia. Profituje aj z \u010fal\u0161ej inov\u00e1cie vyvinutej v Mercedes-Benz: technol\u00f3gie klznej dr\u00e1hy piestov NANOSLIDE\u00ae. Spolo\u010dnos\u0165 Daimler zaviedla t\u00fato technol\u00f3giu ako priekopn\u00edk u\u017e v roku 2006 v z\u00e1\u017eihovom motore V8 z dielne AMG. Pomocou dr\u00f4tovej elektrometaliz\u00e1cie (LDS) roztav\u00ed \u017eelezo-uhl\u00edkov\u00e9 dr\u00f4ty a pr\u00fadom inertn\u00e9ho plynu sa tieto kvap\u00f4\u010dky kovu nanes\u00fa na vn\u00fatorn\u00fa stenu valca \u013eahkej hlin\u00edkovej k\u013eukovej skrine. V\u010faka ve\u013emi presn\u00e9mu opracovaniu takto vytvorenej nanokry\u0161talickej vrstvy \u017eeleza vznikne takmer zrkadlovo hladk\u00fd povrch s drobn\u00fdmi p\u00f3rmi, ktor\u00e9 v\u00fdrazne zni\u017euj\u00fa trenie medzi piestnou skupinou a klznou dr\u00e1hou piestu v porovnan\u00ed s puzdrami zo sivej liatiny a ktor\u00fd je extr\u00e9mne vysoko odoln\u00fd vo\u010di opotrebovaniu. Medzi \u010fal\u0161ie v\u00fdhody patria ni\u017e\u0161ia hmotnos\u0165 motora, ni\u017e\u0161ia spotreba paliva a ni\u017e\u0161ie emisie CO2<\/span><\/sub>.
\nCelkovo vytv\u00e1ra dieselov\u00fd motor V6 z dielne Mercedes-Benz v s\u00fa\u010dasnosti ove\u013ea menej emisi\u00ed CO2<\/span><\/sub> ako po\u010das svojho prv\u00e9ho nasadenia v Triede E. V roku 2009 vytv\u00e1ral E 320 CDI 179 gramov kombinovan\u00fdch emisi\u00ed CO2<\/span><\/sub> na kilometer, v zdokonalenej Triede E v roku 2013 to bolo e\u0161te 144 gramov kombinovan\u00fdch emisi\u00ed. Okrem in\u00fdch aj v\u010faka pou\u017eitiu oce\u013eov\u00e9ho piestu m\u00e1 teraz E 350 BlueTEC emisiu v\u00fdrazne ni\u017e\u0161iu ako 140 gramov. S\u00fabe\u017ene sa podarilo zv\u00fd\u0161i\u0165 v\u00fdkon od roku 2008 zo 155 kW (211 k) na s\u00fa\u010dasn\u00fdch 190 kW (258 k).<\/p>\n

Mercedes-Benz je v technike dieselov\u00fdch motorov o krok vpredu<\/strong><\/p>\n

Nov\u00e9 piesty bud\u00fa \u010doskoro pou\u017eit\u00e9 aj v \u0161tvorvalcov\u00fdch dieselov\u00fdch motoroch z dielne Mercedes-Benz. Joachim Schommers, ved\u00faci z\u00e1kladn\u00e9ho v\u00fdvoja motorov zna\u010dky Mercedes-Benz: \u201eVych\u00e1dzame z toho, \u017ee piesty z ocele n\u00e1jdu v bud\u00facnosti \u0161irok\u00e9 pou\u017eitie aj v dieselov\u00fdch motoroch pre osobn\u00e9 automobily.\u201c<\/p>\n

Na fotografi\u00e1ch:
\n<\/em><\/span><\/strong>1-2\/ Hlin\u00edkov\u00fd piest v\u013eavo a nov\u00fd oce\u013eov\u00fd piest vpravo.<\/p>\n

Zdroj+foto: Mercedes-Benz<\/p>\n

\"Der<\/a> \"Links<\/a> \"Links<\/a> \"Der<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Inova\u010dnou technikou d\u00e1va Mercedes-Benz dieselovej technike pre osobn\u00e9 automobily op\u00e4\u0165 impulzy, ktor\u00e9 ur\u010duj\u00fa smer bud\u00facnosti. Priekopn\u00edk dieselov\u00fdch motorov zo Stuttgartu ako prv\u00fd na svete nahr\u00e1dza hlin\u00edkov\u00e9 piesty, be\u017en\u00e9 v dieselov\u00fdch motoroch pre osobn\u00e9 automobily, za novovyvinut\u00fa gener\u00e1ciu high-tech piestov z ocele. V kombin\u00e1cii s inovat\u00edvnou technol\u00f3giou klznej dr\u00e1hy piestov NANOSLIDE\u00ae\u00a0prin\u00e1\u0161a v\u00fdhody e\u0161te ni\u017e\u0161ej spotreby paliva […]<\/p>\n","protected":false},"author":1,"featured_media":8843,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[4,11],"tags":[138,793,676,22,139,792,500],"class_list":["post-8841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dokumentarne","category-mercedes","tag-diesel","tag-hlinik","tag-mercedes-benz","tag-motor","tag-nafta","tag-ocel","tag-piest"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"de","enabled_languages":["sk","en","de"],"languages":{"sk":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/posts\/8841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/comments?post=8841"}],"version-history":[{"count":1,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/posts\/8841\/revisions"}],"predecessor-version":[{"id":8846,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/posts\/8841\/revisions\/8846"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/media\/8843"}],"wp:attachment":[{"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/media?parent=8841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/categories?post=8841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mixmotor.eu\/de\/wp-json\/wp\/v2\/tags?post=8841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}