{"id":9806,"date":"2014-12-03T02:59:29","date_gmt":"2014-12-03T00:59:29","guid":{"rendered":"http:\/\/mixmotor.eu\/?p=9806"},"modified":"2014-12-03T03:01:26","modified_gmt":"2014-12-03T01:01:26","slug":"vackovy-hriadel-minulost-sucasnost-buducnost-cast-ii","status":"publish","type":"post","link":"https:\/\/mixmotor.eu\/en\/9806\/vackovy-hriadel-minulost-sucasnost-buducnost-cast-ii","title":{"rendered":"Va\u010dkov\u00fd hriade\u013e. Minulos\u0165, s\u00fa\u010dasnos\u0165, bud\u00facnos\u0165 – \u010das\u0165 II."},"content":{"rendered":"

Predch\u00e1dzaj\u00faca \u010das\u0165 \u010dl\u00e1nku o va\u010dkov\u00fdch hriade\u013eoch\u00a0<\/a>v\u00e1s uvedie do teraj\u0161ieho stavu. V totmo pokra\u010dovan\u00ed sa dozviete nie\u010do technickej\u0161ie a to, ako\u00a0m\u00f4\u017ee napredova\u0165 t\u00e1to neodlu\u010dite\u013en\u00e1 s\u00fa\u010das\u0165 motora.<\/p>\n

Technick\u00e1 karta va\u010dky<\/h3>\n

Zbr\u00fasenia va\u010dkov\u00fdch hriade\u013eov nie s\u00fa vidite\u013en\u00e9 vo\u013en\u00fdm okom. V\u00fdrobcovia preto dod\u00e1vaj\u00fa technick\u00e9 karty s\u00a0d\u00f4le\u017eit\u00fdmi inform\u00e1ciami o\u00a0ka\u017edom hriadeli. Tieto \u00fadaje s\u00fa nevyhnutn\u00e9 pri skladan\u00ed upraven\u00e9ho motora.
\nKarty r\u00f4znych v\u00fdrobcov s\u00fa si podobn\u00e9. M\u00f4\u017eu na nich by\u0165 uveden\u00e9 \u0161pecifick\u00e9 inform\u00e1cie jednotliv\u00fdch spolo\u010dnost\u00ed, ako \u010d\u00edslo br\u00fasenia va\u010dky, \u010d\u00edslo dielu, ale v\u00e4\u010d\u0161ina z\u00a0nich je podobn\u00e1.<\/p>\n

Najd\u00f4le\u017eitej\u0161\u00ed \u00fadaj pri poh\u013eade na kartu je typ, ozna\u010denie a\u00a0pou\u017eitie. Karta by tie\u017e mala ud\u00e1va\u0165, \u010di sa s\u00a0dan\u00fdm hriade\u013eom maj\u00fa pou\u017e\u00edva\u0165 hydraulick\u00e9 alebo mechanick\u00e9 zdv\u00edhadla s\u00a0plochou alebo valcovou stykovou plochou.
\nPrv\u00ed \u00fapravcovia vedeli, \u017ee zmena profilu v\u00fdstupku za \u00fa\u010delom zmeny prekrytia a\u00a0trvania zdvihu m\u00f4\u017ee pom\u00f4c\u0165 k\u00a0vy\u0161\u0161iemu v\u00fdkonu. Na technick\u00fdch kart\u00e1ch s\u00fa zobrazen\u00e9 prekrytia medzi sac\u00edm a\u00a0v\u00fdfukov\u00fdm v\u00fdstupkom. (vi\u010f obr\u00e1zok ni\u017e\u0161ie)<\/p>\n

\"overlaps\"<\/a><\/p>\n

\u00dadaje, ktor\u00e9 s\u00fa spolo\u010dn\u00e9 pre v\u0161etk\u00fdch v\u00fdrobcov zah\u0155\u0148aj\u00fa delenie profilov, trvanie zdvihu, zdvih ventilu a\u00a0ventilov\u00fa v\u00f4\u013eu pri mechanick\u00fdch zdv\u00edhadl\u00e1ch. Mnoho nov\u00fdch kariet uv\u00e1dza uhly, pri ktor\u00fdch sa sacie a\u00a0v\u00fdfukov\u00e9 ventily otv\u00e1raj\u00fa a uzatv\u00e1raj\u00fa. Z\u00a0t\u00fdchto \u00fadajov je mo\u017en\u00e9 vypo\u010d\u00edta\u0165 prekrytia jednotliv\u00fdch \u010dinnost\u00ed \u010dasovania ventilov. K\u00a0prekrytiu doch\u00e1dza v\u00a0motore na konci v\u00fdfukov\u00e9ho taktu. Sac\u00ed ventil sa otv\u00e1ra predt\u00fdm, ako v\u0161etka sp\u00e1len\u00e1 zmes kompletne opust\u00ed valec a \u010derstv\u00e1 zmes pom\u00e1ha vyplachova\u0165 valec. Kon\u0161trukt\u00e9ri va\u010diek sa zameriavaj\u00fa na uzavretie v\u00fdfukov\u00e9ho ventilu pr\u00e1ve vo chv\u00edli, ke\u010f k\u00a0nemu doraz\u00ed \u010derstv\u00e1 zmes. T\u00e1to \u010dinnos\u0165 pom\u00e1ha vyf\u00faknu\u0165 sp\u00e1len\u00fa zmes a\u00a0predch\u00e1dza \u00faniku \u010derstvej zmesi.<\/p>\n

\u00dadaje z\u00a0kariet tie\u017e pom\u00e1haj\u00fa stavite\u013eom motorov nastavi\u0165 spr\u00e1vny uhol va\u010dky v\u00a0motore. Inform\u00e1cia, kedy sa otv\u00e1ra sanie, pom\u00e1ha pri zis\u0165ovan\u00ed, \u010di je hriade\u013e v\u00a0predstihu alebo je oneskoren\u00fd.<\/p>\n

Typy va\u010dkov\u00fdch hriade\u013eov<\/h3>\n

Va\u010dky m\u00f4\u017eeme rozdeli\u0165 do z\u00e1kladn\u00fdch skup\u00edn pod\u013ea typu zdv\u00edhadla, s\u00a0ktor\u00fdm sa pou\u017e\u00edvaj\u00fa.
\nZdv\u00edhadla s\u00a0plochou stykovou plochou prich\u00e1dzaj\u00fa do kontaktu s\u00a0v\u00fdstupkom profilu va\u010dky. Tento typ ventilov\u00e9ho rozvodu vy\u017eaduje v\u00e4\u010d\u0161iu \u00fadr\u017ebu. Jednotliv\u00e9 diely rozvodu sa vz\u00e1jomne zabehn\u00fa a\u00a0nem\u00f4\u017eu by\u0165 op\u00e4tovne pou\u017eit\u00e9 v\u00a0in\u00fdch vedeniach ventilov v\u00a0danom motore a\u00a0ani by nemali by\u0165 pou\u017eit\u00e9 v\u00a0in\u00fdch blokoch.<\/p>\n

Odborn\u00edk z\u00a0firmy Lunati Cams, Steve Slavnik prezradil: \u201eNajv\u00e4\u010d\u0161ou chybou je podceni\u0165 fakt, \u017ee ploch\u00e9 zdv\u00edhadla vy\u017eaduj\u00fa zabehnutie. V\u00a0minulosti sa na zabehnutie pou\u017e\u00edvali m\u00e4k\u0161ie pru\u017einy a\u00a0potom nasledovala ich v\u00fdmena. Ak v\u0161ak nie ste profesion\u00e1lnym \u00fapravcom nem\u00e1te potrebn\u00e9 vybavenie a\u00a0v\u00fdmena pru\u017e\u00edn je ve\u013emi n\u00e1ro\u010dn\u00e1.\u201c Val\u010dekov\u00e9 zdv\u00edhadla maj\u00fa vo svojej vrchnej \u010dasti umiestnen\u00fa val\u010dekov\u00fa kladku, ktorej plocha prich\u00e1dza do kontaktu s\u00a0va\u010dkov\u00fdm hriade\u013eom. Tieto zdv\u00edhadla m\u00f4\u017eu presnej\u0161ie kop\u00edrova\u0165 profil va\u010dky a\u00a0maj\u00fa ni\u017e\u0161ie trenie. S\u00fa ale zlo\u017eitej\u0161ie a\u00a0\u0165a\u017e\u0161ie. N\u00e1behov\u00fd \u00fasek v\u00fdstupku takejto va\u010dky b\u00fdva pr\u00edli\u0161 strm\u00fd pre zdv\u00edhadlo s\u00a0plochou stykovou plochou, ktor\u00e9 by mohlo prenika\u0165 do materi\u00e1lu va\u010dky.<\/p>\n

Mechanick\u00e9 verzus hydraulick\u00e9 zdv\u00edhadla<\/h3>\n

Va\u010dkov\u00e9 hriadele vyu\u017e\u00edvaj\u00face zdv\u00edhadla s\u00a0plochou stykovou plochou pri\u0161li na trh v\u00a0\u00e9re musclecars. Oba druhy s\u00fa lacn\u00fdmi dielmi, ale mechanick\u00e9 m\u00f4\u017eu prinies\u0165 vy\u0161\u0161\u00ed v\u00fdkon ako hydraulick\u00e9. Na druh\u00fa stranu vy\u017eaduj\u00fa v\u00e4\u010d\u0161iu \u00fadr\u017ebu a\u00a0je potrebn\u00e9 nastavova\u0165 ich v\u00f4\u013eu ru\u010dne.
\n\u010eal\u0161\u00edm rozdielom je, \u017ee mechanick\u00e9 zdv\u00edhadla s\u00a0tuh\u00fdm obroben\u00fdm telom pren\u00e1\u0161aj\u00fa pohyb priamo, zatia\u013e \u010do\u00a0hydraulick\u00e9 vyu\u017e\u00edvaj\u00fa vn\u00fatorn\u00fd piest podporovan\u00fd tlakom oleja, ktor\u00fd vymedzuje v\u00f4le vo ventilovom rozvode.
\nPreto\u017ee je u\u00a0mechanick\u00fdch potrebn\u00e1 mal\u00e1 v\u00f4\u013ea pre vyrovnanie roz\u0165a\u017enosti materi\u00e1lu, je nutn\u00e9 tieto rozvody nastavova\u0165 pravidelne s\u00a0mierou opotrebenia. Hydraulick\u00e9 nepotrebuj\u00fa tak\u00fato \u00fadr\u017ebu ale piest sa m\u00f4\u017ee zasekn\u00fa\u0165 alebo pretla\u010di\u0165, \u010do m\u00f4\u017ee sp\u00f4sobi\u0165 nespr\u00e1vne dosadnutie ventilu alebo jeho ne\u00fapln\u00e9 otvorenie.<\/p>\n

Chase Knight dod\u00e1va: \u201eKa\u017ed\u00e9 zdv\u00edhadlo sa zabieha s\u00a0v\u00fdstupkom v\u00a0mieste kontaktu u\u017e od prv\u00fdch ot\u00e1\u010dok. T\u00fato unik\u00e1tnu z\u00e1behov\u00fa charakteristiku ovplyv\u0148uj\u00fa rozdiely v nato\u010den\u00ed plochy zdv\u00edhadla vo\u010di profilu va\u010dky a\u00a0vyosenie ich stredov. Preto sa neodpor\u00fa\u010da vklada\u0165 pou\u017eit\u00e9 ploch\u00e9 zdv\u00edhadla a\u00a0va\u010dkov\u00e9 hriadele do rozdielnych blokov dokonca aj v\u00a0pr\u00edpade, ak by boli zdv\u00edhadla na identick\u00fdch v\u00fdstupkoch hriade\u013ea.\u201c<\/p>\n

Va\u010dkov\u00e9 hriadele pre ploch\u00e9 zdv\u00edhadla<\/h3>\n

Hydraulick\u00e9 ploch\u00e9 zdv\u00edhadlo va\u010dkov\u00e9ho hriade\u013ea bolo \u0161tandardom vy\u0161e 40 rokov. S\u00fa \u00faspe\u0161n\u00e9 v\u010faka n\u00edzkej cene, vy\u017eaduj\u00fa minim\u00e1lnu \u00fadr\u017ebu a\u00a0poskytuj\u00fa dobr\u00fd v\u00fdkon. Vyu\u017e\u00edvaj\u00fa olej na tlmenie a\u00a0pru\u017eina za\u0165a\u017een\u00e1 piestom pom\u00e1ha automaticky vymedzova\u0165 v\u00f4\u013eu ventilu.
\nVa\u010dkov\u00e9 hriadele pre pou\u017eitie s\u00a0ploch\u00fdmi zdv\u00edhadlami s\u00fa jednou z\u00a0najstar\u0161\u00edch technol\u00f3gii v\u00a0automobilovej hist\u00f3rii. Ani to v\u0161ak pod\u013ea predajov spolo\u010dnosti Comp Cams nebr\u00e1ni ich neust\u00e1lej ob\u013eube.<\/p>\n

\"IMG_0850\"<\/a><\/p>\n

\u00a0Va\u010dkov\u00e9 hriadele pre val\u010dekov\u00e9 zdv\u00edhadl\u00e1<\/h3>\n

Va\u010dkov\u00e9 hriadele pre pou\u017eitie s hydraulick\u00fdmi val\u010dekov\u00fdmi zdv\u00edhadlami s\u00fa drah\u0161ie, ale m\u00f4\u017eu dosahova\u0165 vy\u0161\u0161\u00ed v\u00fdkon ako s mechanick\u00fdmi ploch\u00fdmi zdv\u00edhadlami. Okrem zn\u00ed\u017eenia trenia m\u00f4\u017ee by\u0165 do v\u00fdstupku va\u010dky vyh\u013aben\u00fd strm\u0161\u00ed n\u00e1beh pre dlh\u0161ie trvanie zdvihu. Na rozdiel od ploch\u00fdch nevy\u017eaduj\u00fa zabehnutie a pon\u00fakaj\u00fa najdlh\u0161iu \u017eivotnos\u0165 zo v\u0161etk\u00fdch typov.<\/p>\n

Va\u010dkov\u00e9 hriadele s\u00a0vyu\u017eit\u00edm mechanick\u00fdch val\u010dekov\u00fdch zdv\u00edhadiel s\u00fa na rovnakej \u00farovni ako hydraulick\u00e9 \u010do sa t\u00fdka ceny, a\u00a0\u010dasto sa pova\u017euj\u00fa za najv\u00fdkonnej\u0161ie. Tie\u017e maj\u00fa strm\u0161\u00ed n\u00e1behov\u00fd \u00fasek a\u00a0dlh\u0161ie trvanie zdvihu ako ploch\u00e9. Podobne ako mechanick\u00e9 ploch\u00e9 vy\u017eaduj\u00fa aj tieto \u00fadr\u017ebu pre zabezpe\u010denie spr\u00e1vnej funk\u010dnosti.<\/p>\n

\"IMG_1393\"<\/a><\/p>\n

Ni\u010d nie je len \u010dierne alebo biele. Steve Slavnik hovor\u00ed: \u201e\u013dudia sa domnievaj\u00fa, \u017ee hydraulick\u00e9 zdv\u00edhadl\u00e1 s\u00a0valcovou plochou automaticky generuj\u00fa vy\u0161\u0161\u00ed v\u00fdkon ako mechanick\u00e9 s\u00a0plochou stykovou plochou. Hydraulick\u00e9 valcov\u00e9 sa v\u0161ak spr\u00e1vaj\u00fa nepredv\u00eddate\u013ene pri vy\u0161\u0161\u00edch ot\u00e1\u010dkach a dokonca m\u00f4\u017eu by\u0165 hor\u0161ie ako hydraulick\u00e9 ploch\u00e9 kv\u00f4li ich hmotnosti. Mechanick\u00e9 s\u00a0plochou stykovou plochou produkuj\u00fa vy\u0161\u0161\u00ed moment a\u00a0v\u00fdkon a\u00a0motor je mo\u017en\u00e9 to\u010di\u0165 do vysok\u00fdch ot\u00e1\u010dok, a\u017e k\u00fdm ste schopn\u00fd tlakom pru\u017einy ovl\u00e1da\u0165 uzatv\u00e1ranie ventilu.\u201c<\/p>\n

\u010co m\u00f4\u017ee prinies\u0165 bud\u00facnos\u0165?<\/h3>\n

Klzn\u00e9 trenie pri pohybe zdv\u00edhadiel po v\u00fdstupku va\u010dky je v\u00fdrazn\u00e9. Okrem mechanick\u00e9ho trenia je nutn\u00e9 pri uzatv\u00e1ran\u00ed ventilov prekona\u0165 silu pru\u017einy. Pri vo\u013enobe\u017en\u00fdch ot\u00e1\u010dkach sa odhadom 25% v\u00fdkonu motora vyu\u017e\u00edva na prekonanie tlaku pru\u017einy. Kon\u0161trukt\u00e9ri experimentuj\u00fa s\u00a0mo\u017enos\u0165ami ako obnovi\u0165 t\u00fato straten\u00fa energiu.
\nU\u017e dlh\u00e9 roky s\u00fa na trhu technol\u00f3gie, ktor\u00e9 umo\u017e\u0148uj\u00fa variabiln\u00e9 \u010dasovanie ventilov. Prisp\u00f4sobuj\u00fa \u010dasovanie ventilov (pr\u00edpadne aj zdvih) aktu\u00e1lnym prev\u00e1dzkov\u00fdm podmienkam. V\u010faka nim dosahuje motor v\u00e4\u010d\u0161ej pru\u017enosti, lep\u0161ieho priebehu to\u010div\u00e9ho momentu a\u00a0vysok\u00fd v\u00fdkon. Jedn\u00e1 sa napr\u00edklad o\u00a0technol\u00f3gie VTEC, Vanos a\u00a0po novom aj americk\u00e1 IVLC.<\/p>\n

Jedn\u00fdm z\u00a0mo\u017en\u00fdch rie\u0161en\u00ed vytvoren\u00fdch za \u00fa\u010delom zn\u00ed\u017eenia straty energie je bezpru\u017einov\u00fd ventilov\u00fd syst\u00e9m. Desmodromick\u00fd rozvod pou\u017e\u00edvaj\u00fa motocykle Ducati s\u00a0ve\u013ek\u00fdm \u00faspechom. Vo svojej\u00a0podstate s\u00fa bezpru\u017einov\u00e9 ventilov\u00e9 syst\u00e9my ovl\u00e1dan\u00e9 zdv\u00edhadlami na zdvih a\u00a0\u010fal\u0161\u00edmi zdv\u00edhadlami navrhnut\u00fdmi na uzavretie ventilu.<\/p>\n

\"desmovalves_gif_ducati\"<\/a>
\nBezva\u010dkov\u00e9 rozvodov\u00e9 syst\u00e9my vyu\u017e\u00edvaj\u00fa elektromagnetick\u00e9, hydraulick\u00e9 alebo pneumatick\u00e9 pohony na otv\u00e1ranie ventilov namiesto va\u010dky a\u00a0zdv\u00edhadla. Ak\u010dn\u00e9 \u010dleny m\u00f4\u017eu by\u0165 pou\u017eit\u00e9 na otv\u00e1ranie a\u00a0zatv\u00e1ranie ventilu alebo len na otvorenie ventilu a\u00a0pru\u017eina na uzavretie. Tieto syst\u00e9my na prv\u00fd poh\u013ead vyzeraj\u00fa jednoduch\u0161ie, no motory bez va\u010dkov\u00fdch hriade\u013eov maj\u00fa zatia\u013e svoje obmedzenia. \u010cast\u00fdm probl\u00e9mom je vysok\u00e1 spotreba energie, presnos\u0165 pri vysokej r\u00fdchlosti, n\u00e1chylnos\u0165 na teplotu, hluk a cena. Tieto prek\u00e1\u017eky br\u00e1nia pou\u017eitiu bezva\u010dkov\u00e9ho syst\u00e9mu.<\/p>\n

Bezva\u010dkov\u00e9 rozvodov\u00e9 \u00fastrojenstv\u00e1 automobilov\u00fdch motorov boli dlho vyv\u00edjan\u00e9 viacer\u00fdmi spolo\u010dnos\u0165ami od Renaultu, BMW, Fiatu, General motors, Lotus Engineering a\u017e po Ford. Niektor\u00fdm z\u00a0t\u00fdchto firiem sa podarilo ich technol\u00f3giu prenies\u0165 do oblasti pretekov, av\u0161ak st\u00e1le nie s\u00fa vhodn\u00e9 do s\u00e9riovej v\u00fdroby.
\nJedinou aplik\u00e1ciou bezva\u010dkov\u00e9ho motora dostupn\u00e9ho v\u00a0s\u00e9riovej produkcii je rota\u010dn\u00fd – Wankelov motor. Tento typ spa\u013eovacieho motora vyu\u017e\u00edva excentrick\u00fd piest, ktor\u00fd miesto vratn\u00e9ho transla\u010dn\u00e9ho pohybu tradi\u010dn\u00e9ho piesta vykon\u00e1va pohyb rota\u010dn\u00fd. \u0160tvortaktn\u00fd cyklus prebieha v\u00a0priestore medzi vn\u00fatrom ov\u00e1lne tvarovan\u00e9ho bloku a\u00a0rotorom, pripom\u00ednaj\u00facim trojuholn\u00edk s\u00a0vypukl\u00fdmi hranami. Tento motor je ve\u013emi kompaktn\u00fd a m\u00e1 vysok\u00fd litrov\u00fd v\u00fdkon. V\u00fdmena zmesi nie je riaden\u00e1 ventilmi ale jednoduch\u00fdm princ\u00edpom otv\u00e1rania kom\u00f4r pohybom piesta.
\nJedn\u00fdm z\u00a0probl\u00e9mov Wankelov\u00fdch motorov je netesnos\u0165. Aj ke\u010f piestne kr\u00fa\u017eky klasick\u00e9ho spa\u013eovacieho motora nie s\u00fa dokonal\u00fdm utesnen\u00edm, umo\u017e\u0148uj\u00fa roztiahnutie ka\u017ed\u00e9ho kr\u00fa\u017eku. Rota\u010dn\u00e9 motory vykazuj\u00fa netesnosti medzi komorami a\u00a0na krajoch kom\u00f4r. Na hran\u00e1ch piesta s\u00fa umiestnen\u00e9 tesnenia, u ktor\u00fdch sa po pribli\u017ene 100\u00a0000km objavuj\u00fa probl\u00e9my. Nasleduje rozobratie motora a\u00a0v\u00fdmena tesnen\u00ed. \u010eal\u0161ou nev\u00fdhodou je pomerne vysok\u00e1 spotreba. Moment\u00e1lne s\u00fa rota\u010dn\u00e9 motory pou\u017e\u00edvan\u00e9 hlavne ako z\u00e1vodn\u00e9 motory a\u00a0motory \u0161portov\u00fdch automobilov, kde sa nekladie a\u017e tak\u00fd d\u00f4raz na \u017eivotnos\u0165 a\u00a0efektivitu.<\/p>\n

P\u00e1tranie po najvhodnej\u0161ej technol\u00f3gii bud\u00facnosti sl\u00fa\u017eiacej na ovl\u00e1danie \u010dasovania pokra\u010duje, no v\u00a0najbli\u017e\u0161\u00edch rokoch bud\u00fa t\u00fato \u00falohu pravdepodobne na\u010falej plni\u0165 va\u010dkov\u00e9 hriadele.<\/p>\n

Autor: Mari\u00e1n Hala\u010d; Zdroj+foto: LSXTV.com<\/p>\n

\"Lunati-Cam-Card\"<\/a>

Va\u010dky nem\u00f4\u017eu by\u0165 kontrolovan\u00e9 od oka. So \u0161peci\u00e1lnymi va\u010dkov\u00fdmi hrade\u013emi dostanete aj jeho \u0161pecifick\u00fd popis\/kartu, ktor\u00fa by ste mali zobra\u0165 ku \u00fapravcovi. Obsahuje pr\u00e1ve inform\u00e1cie o prekrytiach, o stup\u0148och do ktor\u00fdch m\u00f4\u017eete pri \u00faprave \u00eds\u0165, o zdvihu, at\u010f.<\/p><\/div>\n

\"variable-valve-lift\"<\/a>

V\u00fdrobcovia \u00e1ut v USA dokonca zverej\u0148uj\u00fa plag\u00e1tiky, kde opisuj\u00fa ku ak\u00fdm zmen\u00e1m prist\u00fapili v novom modeli. V tomto sa hovor\u00ed o va\u010dkovom hriadeli s variabiln\u00fdm \u010dasovan\u00edm. Na hriadeli s\u00fa dve va\u010dky v tesnom z\u00e1stupe za sebou a ke\u010f je potrebn\u00fd vy\u0161\u0161\u00ed v\u00fdkon, hriade\u013e sa posunie a otv\u00e1ra ventily u\u017e vy\u0161\u0161ou va\u010dkou, pre v\u00e4\u010d\u0161\u00ed pr\u00edsun zmesy zo sania.<\/p><\/div>\n

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

Predch\u00e1dzaj\u00faca \u010das\u0165 \u010dl\u00e1nku o va\u010dkov\u00fdch hriade\u013eoch\u00a0v\u00e1s uvedie do teraj\u0161ieho stavu. V totmo pokra\u010dovan\u00ed sa dozviete nie\u010do technickej\u0161ie a to, ako\u00a0m\u00f4\u017ee napredova\u0165 t\u00e1to neodlu\u010dite\u013en\u00e1 s\u00fa\u010das\u0165 motora.<\/p>\n","protected":false},"author":1,"featured_media":9802,"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],"tags":[389,896,900,901,22,899,897,898],"class_list":["post-9806","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dokumentarne","tag-dokument","tag-dokumentarny","tag-historia","tag-hriadel","tag-motor","tag-uprava","tag-vacka","tag-vackovy"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"en","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\/en\/wp-json\/wp\/v2\/posts\/9806","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/comments?post=9806"}],"version-history":[{"count":2,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/9806\/revisions"}],"predecessor-version":[{"id":9818,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/9806\/revisions\/9818"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media\/9802"}],"wp:attachment":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media?parent=9806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/categories?post=9806"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/tags?post=9806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}