{"id":617,"date":"2026-02-10T12:18:11","date_gmt":"2026-02-10T10:18:11","guid":{"rendered":"https:\/\/www.sk-babickinerady.top\/?p=617"},"modified":"2026-02-10T12:18:11","modified_gmt":"2026-02-10T10:18:11","slug":"tento-tlak-v-pneumatikach-skracuje-ich-zivotnost-a-takmer-nikto-vam-to-nevysvetli-odhalil-to-mechanik-na-dochodku","status":"publish","type":"post","link":"https:\/\/www.sk-babickinerady.top\/?p=617","title":{"rendered":"Tento tlak v pneumatik\u00e1ch skracuje ich \u017eivotnos\u0165 a takmer nikto v\u00e1m to nevysvetl\u00ed: odhalil to mechanik na d\u00f4chodku"},"content":{"rendered":"\n<p>Tento typ \u201esenza\u010dn\u00fdch odhalen\u00ed\u201c od vysl\u00fa\u017eil\u00fdch mechanikov \u010dasto koluje internetom, ale v tomto pr\u00edpade m\u00e1 jadro pravdy, ktor\u00e9 fyzika nepust\u00ed. To, \u010do v\u00e1m v be\u017enom servise \u010dasto nepovedia, nie je len o tom, \u017ee tlak m\u00e1 by\u0165 \u201espr\u00e1vny\u201c, ale o tom, ako sa men\u00ed <strong>vplyvom teploty a \u0161t\u00fdlu jazdy<\/strong>.<\/p>\n\n\n\n<p>Tu je vysvetlenie toho, \u010do skuto\u010dne ni\u010d\u00ed va\u0161e pneumatiky a o \u010dom v\u00e4\u010d\u0161ina vodi\u010dov netu\u0161\u00ed:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. Skryt\u00fd nepriate\u013e: Tlak za studena vs. za tepla<\/h3>\n\n\n\n<p>V\u00e4\u010d\u0161ina \u013eud\u00ed f\u00faka pneumatiky na hodnotu uveden\u00fa na \u0161t\u00edtku dver\u00ed (napr. <strong>2.2 bar<\/strong>). M\u00e1lokto si v\u0161ak uvedomuje, \u017ee t\u00e1to hodnota plat\u00ed <strong>v\u00fdhradne pre studen\u00e9 pneumatiky<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Probl\u00e9m:<\/strong> Ak meriate tlak po 15 min\u00fatach jazdy na dia\u013enici alebo po tom, \u010do auto st\u00e1lo na priamom slnku, namer\u00e1te vy\u0161\u0161iu hodnotu (napr. <strong>2.5 bar<\/strong>) kv\u00f4li tepelnej roz\u0165a\u017enosti vzduchu.<\/li>\n\n\n\n<li><strong>Chyba:<\/strong> Ak vtedy tlak \u201euprav\u00edte\u201c a vypust\u00edte vzduch na 2.2 bar, v skuto\u010dnosti budete ma\u0165 po vychladnut\u00ed pneumatiku <strong>podhusten\u00fa<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Pre\u010do je podhustenie (n\u00edzky tlak) hor\u0161ie ako prehustenie?<\/h3>\n\n\n\n<p>Mechanici na d\u00f4chodku \u010dasto varuj\u00fa pred jazdou na m\u00e4kk\u00fdch gum\u00e1ch, preto\u017ee podhustenie zab\u00edja pneumatiku zvn\u00fatra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prehrievanie bo\u010dn\u00edc:<\/strong> Pneumatika sa pri ka\u017edej ot\u00e1\u010dke viac deformuje. T\u00e1to neust\u00e1la flexia generuje obrovsk\u00e9 teplo, ktor\u00e9 doslova rozklad\u00e1 \u0161trukt\u00faru gumy.<\/li>\n\n\n\n<li><strong>Nerovnomern\u00e9 opotrebovanie:<\/strong> Podhusten\u00e1 pneumatika sa viac drie na <strong>okrajoch (ramen\u00e1ch)<\/strong>, zatia\u013e \u010do stred zost\u00e1va nevyu\u017eit\u00fd.<\/li>\n\n\n\n<li><strong>Valiv\u00fd odpor:<\/strong> V\u00fdrazne zvy\u0161uje spotrebu paliva a zni\u017euje stabilitu v z\u00e1krut\u00e1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u201eZlat\u00e9 pravidlo\u201c mechanikov: Prisp\u00f4sobte sa z\u00e1\u0165a\u017ei<\/h3>\n\n\n\n<p>V\u00fdrobcovia uv\u00e1dzaj\u00fa dve hodnoty tlaku: pre pr\u00e1zdne auto a pre plne nalo\u017een\u00e9 auto.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Odhalenie mechanika:<\/strong> Ak jazd\u00edte s rodinou a bato\u017einou na dovolenku pri tlaku nastavenom pre \u201epr\u00e1zdne auto\u201c, pneumatiky trpia rovnako, ako keby boli defektn\u00e9. Pri plnom za\u0165a\u017een\u00ed je nutn\u00e9 zv\u00fd\u0161i\u0165 tlak (\u010dasto a\u017e na <strong>2.8 \u2013 3.0 bar<\/strong> na zadnej n\u00e1prave).<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Ako si udr\u017ea\u0165 pneumatiky \u010do najdlh\u0161ie?<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Situ\u00e1cia<\/strong><\/td><td><strong>\u010co urobi\u0165 s tlakom?<\/strong><\/td><td><strong>V\u00fdsledok<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Be\u017en\u00e1 jazda<\/strong><\/td><td>Kontrolova\u0165 raz mesa\u010dne (v\u017edy za studena!)<\/td><td>Maxim\u00e1lna \u017eivotnos\u0165 dez\u00e9nu<\/td><\/tr><tr><td><strong>Nalo\u017een\u00e9 auto<\/strong><\/td><td>Zv\u00fd\u0161i\u0165 tlak pod\u013ea tabu\u013eky na dver\u00e1ch<\/td><td>Bezpe\u010dnos\u0165 a ni\u017e\u0161ia spotreba<\/td><\/tr><tr><td><strong>Zmena sez\u00f3ny<\/strong><\/td><td>Pri poklese teploty o 10\u00b0C tlak klesne o cca 0.1 bar<\/td><td>Prevencia podhustenia v zime<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Zhrnutie: \u010co v\u00e1m v servise nepovedia?<\/h3>\n\n\n\n<p>Najv\u00e4\u010d\u0161\u00edm zabijakom je <strong>lenivos\u0165<\/strong>. Pneumatika prirodzene str\u00e1ca tlak (dif\u00faziou cez gumu) r\u00fdchlos\u0165ou pribli\u017ene <strong>0.05 a\u017e 0.1 bar mesa\u010dne<\/strong>. Ak ich kontrolujete len raz ro\u010dne pri prez\u00favan\u00ed, polovicu roka jazd\u00edte na nebezpe\u010dne m\u00e4kk\u00fdch gum\u00e1ch, ktor\u00e9 sa zbyto\u010dne ni\u010dia.<\/p>\n\n\n\n<p><strong>Chceli by ste, aby som v\u00e1m pomohol n\u00e1js\u0165 odpor\u00fa\u010dan\u00e9 hodnoty tlaku pre va\u0161e konkr\u00e9tne vozidlo, alebo v\u00e1s zauj\u00edma, ako spr\u00e1vne mera\u0165 h\u013abku dez\u00e9nu pomocou mince?<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tento typ \u201esenza\u010dn\u00fdch odhalen\u00ed\u201c od vysl\u00fa\u017eil\u00fdch mechanikov \u010dasto koluje internetom, ale v tomto pr\u00edpade m\u00e1 jadro pravdy, ktor\u00e9 fyzika nepust\u00ed. To, \u010do v\u00e1m v be\u017enom servise \u010dasto nepovedia, nie je [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-617","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zivotne-triky"],"_links":{"self":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/617"}],"collection":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=617"}],"version-history":[{"count":1,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/617\/revisions"}],"predecessor-version":[{"id":619,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/617\/revisions\/619"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/media\/618"}],"wp:attachment":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}