{"id":6290,"date":"2016-03-14T00:17:42","date_gmt":"2016-03-14T00:17:42","guid":{"rendered":"http:\/\/www.autolexicon.net\/?p=6290"},"modified":"2016-03-26T10:49:06","modified_gmt":"2016-03-26T10:49:06","slug":"puretech","status":"publish","type":"post","link":"https:\/\/www.autolexicon.net\/sk\/articles\/puretech\/","title":{"rendered":"PureTech"},"content":{"rendered":"

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V roku 2012 predstavil koncern PSA nov\u00e9 prepl\u0148ovan\u00e9 trojvalcov\u00e9 motory radu EB. <\/span>T\u00e1to nov\u00e1 rada sa stala n\u00e1stupcom radu TU uveden\u00e9 u\u017e v roku 1986. Obchodn\u00fd n\u00e1zov agreg\u00e1tov radu EB je PureTech. <\/strong><\/span>Motory PureTech sa vyr\u00e1baj\u00fa na severov\u00fdchode Franc\u00fazska v z\u00e1vode Tr\u00e9mery a koncern PSA po\u010d\u00edta s pou\u017eit\u00edm t\u00fdchto motorov do v\u00e4\u010d\u0161iny vyr\u00e1ban\u00fdch modelov<\/strong>: Peugeot 108, 208, 301, 308, 2008, 3008 a 5008 a Citro\u00ebn C1, C3, C4, C4 Cactus, C4 Picasso <\/span>a Berlingo a \u010falej automobily DS3 a DS4.<\/span><\/span><\/span><\/p>\n

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Kon\u0161trukcia motora:
\n<\/span><\/span><\/strong>Ako v\u00e4\u010d\u0161ina trojvalcov\u00fdch motorov i motory PureTech s\u00fa typick\u00e9 vysok\u00fdm kr\u00fatiacim momentom<\/strong> dostupn\u00fdm u\u017e od n\u00edzkych ot\u00e1\u010dok. <\/span>U v\u00fdkonnej\u0161\u00edch verzi\u00ed tohto motora je \u00factyhodn\u00e9ho maxima kr\u00fatiaceho momentu 230 Nm dosahuje u\u017e od 1750 ot \/ min! <\/span>Motor 1.2 PureTech s v\u00fdkonom 96 kW (130 konsk\u00fdch s\u00edl<\/a>) mo\u017eno vo svojej triede dokonca ozna\u010di\u0165 ako papierovo najv\u00fdkonnej\u0161\u00ed<\/strong>. <\/span>Napr\u00edklad: motor 1.2 TSI<\/a> koncernu VW be\u017ene pon\u00faka len 81 kW; <\/span>motor 1.2 TCe<\/a> spriaznen\u00e9 zna\u010dky Renault s\u00edce pon\u00fakne 96 kW, ale o 25 Nm men\u0161ie kr\u00fatiaci moment.<\/span><\/span><\/span><\/p>\n

Motory PureTech s\u00fa \u013eah\u0161ie a kompaktnej\u0161ie ne\u017e ich predchodcovia. <\/span>S\u00fa vybaven\u00e9 turbod\u00fachadlom<\/strong> a premenn\u00fdm \u010dasovan\u00edm sac\u00edch i v\u00fdfukov\u00fdch ventilov<\/a><\/strong>. <\/span>Ventilov\u00e9 rozvody typu DOHC so \u0161tyrmi ventilmi na valec s\u00fa poh\u00e1\u0148an\u00e9 pomocou reme\u0148a v olejovom k\u00fapeli. <\/span>Podobne ako u konkuren\u010dn\u00fdch motorov TSI<\/a> a EcoBoost<\/a>, m\u00e1 aj motor PureTech zbern\u00e9 potrubie integrovan\u00e9 do hlavy motora<\/strong>. <\/span>T\u00fdm sa okrem in\u00e9ho skracuje cesta v\u00fdfukov\u00fdch plynov k turbod\u00fachadlu, v\u010faka tomu maj\u00fa motory PureTech dobr\u00fa odozvu na plyn a kompaktn\u00fa kon\u0161trukciu.
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\"\"<\/a>\u00a0\u00a0\u00a0\u00a0 \"\"<\/a><\/p>\n

Je zn\u00e1me, \u017ee trojvalcov\u00e9 motory maj\u00fa oproti \u0161tvorvalcov\u00fdm prirodzene hrub\u0161ie chod, ne\u017eiaduce vibr\u00e1cie trojvalcov\u00e9ho motora PureTech s\u00fa preto tlmen\u00e9 prostredn\u00edctvom vyva\u017eovacie hriadele<\/strong>. <\/span>Kon\u0161trukt\u00e9ri tie\u017e venovali ve\u013ek\u00fa pozornos\u0165 zn\u00ed\u017eeniu vn\u00fatorn\u00e9ho trenia motora<\/strong>. <\/span>Toho sa podarilo dosiahnu\u0165 za pomoci syntetick\u00e9ho diamantu, ktor\u00fdm s\u00fa potiahnut\u00e9 napr\u00edklad piestne \u010dapy, piestne kr\u00fa\u017eky a zdvih\u00e1tka ventilov.<\/span><\/span><\/span><\/p>\n

Zlep\u0161enie efektivity spa\u013eovania sa dosiahlo vyu\u017eit\u00edm vysokotlakov\u00e9ho priameho vstrekovania benz\u00ednu<\/a><\/strong> a vyu\u017eit\u00edm a\u017e troch trysiek po\u010das jedn\u00e9ho pracovn\u00e9ho cyklu motora. <\/span>Vstrekovac\u00ed tlak dosahuje a\u017e 200 barov<\/strong> (pre porovnanie naftov\u00e9 motory dosahuj\u00fa ove\u013ea vy\u0161\u0161\u00edch tlakov 2000 – 2500 barov, ale u nafty tieto vysok\u00e9 tlaky s\u00favisia s in\u00fdm princ\u00edpom spa\u013eovania). <\/span>N\u00edzkotlakov\u00e9 turbo d\u00fachadlo zvy\u0161uje v\u00fdkon motora a pom\u00e1ha mu k plochej krivke kr\u00fatiaceho momentu.<\/span><\/span><\/span><\/p>\n

Video:<\/strong><\/span><\/p>\n