{"id":7505,"date":"2016-06-15T00:49:40","date_gmt":"2016-06-15T00:49:40","guid":{"rendered":"http:\/\/www.autolexicon.net\/?p=7505"},"modified":"2016-06-15T15:52:51","modified_gmt":"2016-06-15T15:52:51","slug":"egr-exhaust-gas-recirculation","status":"publish","type":"post","link":"https:\/\/www.autolexicon.net\/cs\/articles\/egr-exhaust-gas-recirculation\/","title":{"rendered":"EGR (Exhaust Gas Recirculation)"},"content":{"rendered":"<p><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>EGR<\/strong> (anglicky: <strong>E<\/strong>xhaust <strong>G<\/strong>as <strong>R<\/strong>ecirculation, \u010desky: <strong>recirkulace spalin<\/strong>) je sou\u010d\u00e1stka v\u00a0motoru, kter\u00e1 <strong>reguluje mno\u017estv\u00ed v\u00fdfukov\u00fdch plyn\u016f veden\u00fdch zp\u011bt do sac\u00edho potrub\u00ed<\/strong>. Zp\u011btn\u00e9 veden\u00ed \u010d\u00e1sti v\u00fdfukov\u00fdch plyn\u016f do s\u00e1n\u00ed se prov\u00e1d\u00ed proto, \u017ee pom\u00e1h\u00e1 sn\u00ed\u017eit <a href=\"http:\/\/www.autolexicon.net\/articles\/emise-vyfukovych-plynu\/\">emise v\u00fdfukov\u00fdch plyn\u016f<\/a>. EGR ventil maj\u00ed prakticky v\u0161echny naftov\u00e9 motory, kter\u00e9 spl\u0148uj\u00edc\u00ed emisn\u00ed limity od normy <a href=\"http:\/\/www.autolexicon.net\/articles\/emisni-norma-euro\/\">EURO 4<\/a>.<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005.jpg\" rel=\"attachment wp-att-7519\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7519\" title=\"podtlakov\u011b ovl\u00e1dan\u00fd EGR ventil\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005-250x223.jpg\" alt=\"cs_egr_005\" width=\"185\" height=\"165\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005-250x223.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005-112x100.jpg 112w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005-768x684.jpg 768w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005-600x534.jpg 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_005.jpg 795w\" sizes=\"auto, (max-width: 185px) 100vw, 185px\" \/><\/a><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006.jpg\" rel=\"attachment wp-att-7523\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7523\" title=\"podtlakov\u011b ovl\u00e1dan\u00fd EGR ventil\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006-250x231.jpg\" alt=\"cs_egr_006\" width=\"179\" height=\"165\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006-250x231.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006-108x100.jpg 108w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006-600x554.jpg 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006.jpg 650w\" sizes=\"auto, (max-width: 179px) 100vw, 179px\" \/><\/a><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007.jpg\" rel=\"attachment wp-att-7518\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7518\" title=\"EGR ventil ovl\u00e1dan\u00fd pomoc\u00ed servomotorku\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007-178x250.jpg\" alt=\"cs_egr_007\" width=\"118\" height=\"165\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007-178x250.jpg 178w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007-71x100.jpg 71w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007-428x600.jpg 428w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_007.jpg 441w\" sizes=\"auto, (max-width: 118px) 100vw, 118px\" \/><\/a><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008.jpg\" rel=\"attachment wp-att-7525\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7525\" title=\"EGR ventil s chladi\u010dem\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008-250x188.jpg\" alt=\"cs_egr_008\" width=\"220\" height=\"165\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008-250x188.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008-133x100.jpg 133w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008-768x576.jpg 768w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008-600x450.jpg 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_008.jpg 2045w\" sizes=\"auto, (max-width: 220px) 100vw, 220px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Jak funguje EGR ventil?<br \/>\n<\/strong>EGR ventil otev\u00edr\u00e1 a uzav\u00edr\u00e1 propojen\u00ed sac\u00edho a v\u00fdfukov\u00e9ho potrub\u00ed. Kdy\u017e je EGR ventil otev\u0159en, do sac\u00edho potrub\u00ed se d\u00edky podtlaku v\u00a0s\u00e1n\u00ed p\u0159epou\u0161t\u00ed ur\u010dit\u00e9 mno\u017estv\u00ed v\u00fdfukov\u00fdch plyn\u016f, kter\u00e9 se m\u00eds\u00ed s\u00a0nov\u011b p\u0159\u00edchoz\u00ed sm\u011bs\u00ed\/vzduchem. <strong>V\u00fdsledn\u00e1 sm\u011bs nas\u00e1van\u00e1 do motoru m\u00e1 d\u00edky tomu men\u0161\u00ed pod\u00edl kysl\u00edku, t\u00edm doch\u00e1z\u00ed ke sn\u00ed\u017een\u00ed teploty ho\u0159en\u00ed.<\/strong> Ni\u017e\u0161\u00ed teploty spalov\u00e1n\u00ed vedou ke sn\u00ed\u017een\u00ed emis\u00ed <a href=\"http:\/\/www.autolexicon.net\/articles\/emise-vyfukovych-plynu\/\">oxid\u016f dus\u00edku (NO<sub>x<\/sub>)<\/a>. Vysok\u00e9 spalovac\u00ed teploty a p\u0159ebytek vzduchu maj\u00ed toti\u017e za n\u00e1sledek vysokou produkci <a href=\"http:\/\/www.autolexicon.net\/articles\/emise-vyfukovych-plynu\/\">oxid\u016f dus\u00edku (NO<sub>x<\/sub>)<\/a> ve v\u00fdfukov\u00fdch plynech.<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_001.jpg\" rel=\"attachment wp-att-7522\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7522\" title=\"funkce EGR ventilu\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_001-250x176.jpg\" alt=\"cs_egr_001\" width=\"284\" height=\"200\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_001-250x176.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_001-142x100.jpg 142w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_001.jpg 600w\" sizes=\"auto, (max-width: 284px) 100vw, 284px\" \/><\/a>\u00a0\u00a0\u00a0\u00a0<a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_002.jpg\" rel=\"attachment wp-att-7524\"> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7524\" title=\"\u0159ez EGR ventilem\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_002-250x161.jpg\" alt=\"cs_egr_002\" width=\"311\" height=\"200\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_002-250x161.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_002-156x100.jpg 156w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_002.jpg 400w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/a><\/p>\n<p><iframe loading=\"lazy\" title=\"Principle of Exhaust Gas Re-circulation (EGR)\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/lL_ElXQVJo8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Negativa<\/strong><\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">Z\u00a0v\u00ed\u0161e popsan\u00e9ho je z\u0159ejm\u00e9, \u017ee \u010d\u00e1st spalin projde spalovac\u00edm procesem dvakr\u00e1t. Co ji\u017e bylo jednou sp\u00e1len\u00e9, znovu neho\u0159\u00ed. V\u00fdsledkem je tedy men\u0161\u00ed mno\u017estv\u00ed kysl\u00edku pro spalov\u00e1n\u00ed, n\u00e1sledkem \u010deho\u017e lze sp\u00e1lit m\u00e9n\u011b paliva a t\u00edm z\u00edskat ni\u017e\u0161\u00ed teplotu spalov\u00e1n\u00ed. Ni\u017e\u0161\u00ed teplota spalov\u00e1n\u00ed sn\u00ed\u017e\u00ed obsah oxid\u016f dus\u00edku ve v\u00fdfukov\u00fdch plynech! Co je dobr\u00e9 pro emise, nemus\u00ed b\u00fdt dobr\u00e9 pro motor. <strong>Negativn\u00ed str\u00e1nkou pou\u017eit\u00ed EGR ventilu je, \u017ee vysok\u00fd pod\u00edl recirkulovan\u00fdch v\u00fdfukov\u00fdch plyn\u016f sni\u017euje v\u00fdkon motoru! <\/strong>M\u00e9n\u011b paliva, men\u0161\u00ed teploty ho\u0159en\u00ed, m\u00e9n\u011b mechanick\u00e9 pr\u00e1ce. Tak prav\u00ed fyzika!<\/span><\/li>\n<li><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">Nesm\u00edme zapom\u00ednat, \u017ee je t\u0159eba chladit (odv\u00e9st) teplo odebran\u00e9 spalin\u00e1m. Co\u017e se rovn\u011b\u017e negativn\u011b projevuje na spot\u0159eb\u011b paliva!<\/span><\/li>\n<li><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">Dal\u0161\u00edm faktorem, kter\u00fd se op\u011bt negativn\u011b projev\u00ed na v\u00fdkonu motoru a jeho spot\u0159eb\u011b je ta skute\u010dnost, \u017ee <strong>pevn\u00fdmi \u010d\u00e1sticemi ze spalin se zan\u00e1\u0161\u00ed sac\u00ed potrub\u00ed!<\/strong> Vrstva karbonu postupn\u011b nar\u016fst\u00e1, a u m\u00e1lo udr\u017eovan\u00fdch voz\u016f m\u016f\u017ee b\u00fdt siln\u00e1 n\u011bkolik milimetr\u016f. T\u00edm se v\u00fdrazn\u011b omez\u00ed objem nas\u00e1van\u00e9ho vzduchu zejm\u00e9na p\u0159i vy\u0161\u0161\u00edch ot\u00e1\u010dk\u00e1ch motoru.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">EGR ventil vyu\u017e\u00edvaj\u00ed jak benz\u00ednov\u00e9 tak naftov\u00e9 motory. V p\u0159\u00edpad\u011b benz\u00ednov\u00fdch motor\u016f se recirkulace pohybuje \u0159\u00e1dov\u011b v 10-20 % z objemu nas\u00e1van\u00e9 sm\u011bsi, u naftov\u00fdch motor\u016f se tato hodnota pohybuje okolo 15-25 %.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Kdy je EGR aktivn\u00ed?<a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011.jpg\" rel=\"attachment wp-att-7530\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-7530 size-medium\" title=\"datov\u00e9 pole motoru\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011-250x178.jpg\" alt=\"cs_egr_011\" width=\"250\" height=\"178\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011-250x178.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011-141x100.jpg 141w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011-600x426.jpg 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_011.jpg 767w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><br \/>\n<\/strong>Mno\u017estv\u00ed zp\u011btn\u00e9ho veden\u00ed v\u00fdfukov\u00fdch plyn\u016f se stanovuje <strong>z\u00a0datov\u00e9ho pole<\/strong> v\u00a0z\u00e1vislosti na mno\u017estv\u00ed nas\u00e1van\u00e9ho vzduchu, ot\u00e1\u010dek motoru a mno\u017estv\u00ed vst\u0159ikovan\u00e9ho paliva. Z\u00e1rove\u0148 mus\u00ed b\u00fdt spln\u011bna podm\u00ednka teploty motoru vy\u0161\u0161\u00ed ne\u017e 50\u00b0C. P\u0159i ni\u017e\u0161\u00edch teplot\u00e1ch je syst\u00e9m zp\u011btn\u00e9ho veden\u00ed v\u00fdfukov\u00fdch plyn\u016f odpojen. EGR ventil je aktivn\u00ed p\u0159i ni\u017e\u0161\u00edch ot\u00e1\u010dk\u00e1ch cca do 3000 ot\/min, p\u0159i vy\u0161\u0161\u00edch ot\u00e1\u010dk\u00e1ch kles\u00e1 tvorba oxid\u016f dus\u00edku sama o sob\u011b, jeliko\u017e p\u0159i vy\u0161\u0161\u00edch ot\u00e1\u010dk\u00e1ch motoru jsou krat\u0161\u00ed \u010dasy spalov\u00e1n\u00ed a mal\u00fd p\u0159ebytek vzduchu. S\u00a0n\u00e1stupem p\u0159\u00edsn\u011bj\u0161\u00edch <a href=\"http:\/\/www.autolexicon.net\/articles\/emisni-norma-euro\/\">emisn\u00edch norem Euro<\/a> se za\u010d\u00ednaj\u00ed prosazovat dvouokruhov\u00e9 syst\u00e9my s\u00a0dvojic\u00ed EGR ventil\u016f, kter\u00e9 funguj\u00ed prakticky ve v\u0161ech cyklech motoru.<\/span><\/p>\n<table class=\" aligncenter\" style=\"width: 95%; background-color: #cccccc;\">\n<tbody>\n<tr>\n<td style=\"width: 100%; text-align: center; vertical-align: middle;\" width=\"614\">\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\"><strong>Dvouokruhov\u00fd syst\u00e9m zp\u011btn\u00e9ho veden\u00ed v\u00fdfukov\u00fdch plyn\u016f<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">Modern\u00ed motory vyu\u017e\u00edvaj\u00ed tzv. dvouokruhov\u00fd syst\u00e9m zp\u011btn\u00e9ho veden\u00ed v\u00fdfukov\u00fdch plyn\u016f, kter\u00fd je slo\u017een z\u00a0<strong>vysokotlak\u00e9ho<\/strong> a <strong>n\u00edzkotlak\u00e9ho<\/strong> zp\u011btn\u00e9ho veden\u00ed.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Vysokotlak\u00e9 zp\u011btn\u00e9 veden\u00ed v\u00fdfukov\u00fdch plyn\u016f<\/strong><br \/>\nV\u00a0tomto p\u0159\u00edpad\u011b jsou v\u00fdfukov\u00e9 plyny odeb\u00edr\u00e1ny p\u0159\u00edmo ze sb\u011brn\u00e9ho v\u00fdfukov\u00e9ho potrub\u00ed a bez ochlazov\u00e1n\u00ed jsou vedeny extern\u00edm kan\u00e1lem d\u00e1l p\u0159ed servomotor zp\u011btn\u00e9ho veden\u00ed v\u00fdfukov\u00fdch plyn\u016f a\u017e do trubky pln\u00edc\u00edho vzduchu. Hork\u00e9 v\u00fdfukov\u00e9 plyny se m\u00eds\u00ed se vzduchem proud\u00edc\u00edm v\u00a0s\u00e1n\u00ed a oh\u0159\u00edvaj\u00ed ho. V\u00fdsledkem a v\u00fdhodou je rychlej\u0161\u00ed zah\u0159\u00e1t\u00ed <a href=\"http:\/\/www.autolexicon.net\/articles\/katalyzator\/\">katalyz\u00e1tor\u016f<\/a> a <a href=\"http:\/\/www.autolexicon.net\/articles\/dpf-diesel-particulate-filter\/\">filtru pevn\u00fdch \u010d\u00e1stic<\/a>, kter\u00e9 jsou rychleji p\u0159ipraveny k\u00a0provozu! Vysokotlak\u00e9 veden\u00ed je aktivn\u00ed p\u0159i <a href=\"http:\/\/www.autolexicon.net\/articles\/studeny-start\/\">studen\u00e9m motoru<\/a>.<\/span><\/p>\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003.png\" rel=\"attachment wp-att-7529\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7529\" title=\"n\u00edzkotlak\u00fd a vysokotlak\u00fd okruh EGR ventilu\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003-250x153.png\" alt=\"cs_egr_003\" width=\"360\" height=\"220\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003-250x153.png 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003-164x100.png 164w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003-600x366.png 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_003.png 660w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004.png\" rel=\"attachment wp-att-7528\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7528\" title=\"n\u00edzkotlak\u00fd a vysokotlak\u00fd okruh EGR ventilu\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004-250x231.png\" alt=\"cs_egr_004\" width=\"238\" height=\"220\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004-250x231.png 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004-108x100.png 108w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004-600x554.png 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_004.png 660w\" sizes=\"auto, (max-width: 238px) 100vw, 238px\" \/><\/a>\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>N\u00edzkotlak\u00e9 zp\u011btn\u00e9 veden\u00ed v\u00fdfukov\u00fdch plyn\u016f<\/strong><br \/>\nV\u00a0tomto p\u0159\u00edpad\u011b jsou v\u00fdfukov\u00e9 plyny odeb\u00edr\u00e1ny a\u017e za filtrem pevn\u00fdch \u010d\u00e1stic a jsou tedy do zna\u010dn\u00e9 m\u00edry zbaveny saz\u00ed. Spaliny je nevrac\u00ed do motoru jako \u201ebrusivo\u201c a sni\u017euje se tak opot\u0159eben\u00ed motoru a zan\u00e1\u0161en\u00ed s\u00e1n\u00ed karbonem. P\u0159i cest\u011b spalin n\u00edzkotlak\u00fdm potrub\u00edm proch\u00e1zej\u00ed chladi\u010dem v\u00fdfukov\u00fdch plyn\u016f a d\u00e1le p\u0159es trubku pln\u00edc\u00edho vzduchu do s\u00e1n\u00ed motoru.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>\u00a0<\/strong><\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"EGR Exhaust Gas Recirculation\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/K0QAvF2PLsY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Poruchy a \u00fadr\u017eba EGR ventilu<\/strong><br \/>\nZa norm\u00e1ln\u00edch okolnost\u00ed nevy\u017eaduje EGR ventil \u017e\u00e1dnou speci\u00e1ln\u00ed p\u00e9\u010di. <strong>\u00dadr\u017eba spo\u010d\u00edv\u00e1 p\u0159edev\u0161\u00edm v\u00a0odstran\u011bn\u00ed karbonov\u00fdch usazenin.<\/strong> Spaliny, kter\u00e9 proch\u00e1zej\u00ed jednookruhov\u00fdm EGR ventilem zp\u011bt do motoru toti\u017e nepro\u0161ly \u017e\u00e1dn\u00fdm <a href=\"http:\/\/www.autolexicon.net\/articles\/katalyzator\/\">katalyz\u00e1torem<\/a> nebo <a href=\"http:\/\/www.autolexicon.net\/articles\/dpf-diesel-particulate-filter\/\">filtrem pevn\u00fdch \u010d\u00e1stic<\/a>, proto se EGR ventil zan\u00e1\u0161\u00ed karbonem. P\u0159i spalov\u00e1n\u00ed nekvalitn\u00edho paliva \u010di v p\u0159\u00edpad\u011b, \u017ee motor spolu s palivem spaluje i olej, se EGR ventil zanese rychleji. Logick\u00fdm n\u00e1sledkem je, \u017ee se klapka ventilu nedov\u00edr\u00e1. <strong>Motor se \u0161patn\u011b funguj\u00edc\u00edm EGR ventilem m\u016f\u017ee p\u0159i p\u0159id\u00e1n\u00ed plynu \u0161kubat, automobil p\u0159i akceleraci nadm\u011brn\u011b kou\u0159\u00ed, jeliko\u017e je mno\u017estv\u00ed nas\u00e1van\u00e9ho vzduchu p\u0159\u00edli\u0161 mal\u00e9.<\/strong> Takov\u00e9 kou\u0159en\u00ed naftov\u00fdch motor\u016f mnoz\u00ed pokl\u00e1daj\u00ed za norm\u00e1ln\u00ed. Opravdu nen\u00ed, ani u star\u00fdch motor\u016f <a href=\"http:\/\/www.autolexicon.net\/articles\/tdi-turbo-diesel-injection\/\">TDI<\/a>! U automobilu s\u00a0<a href=\"http:\/\/www.autolexicon.net\/articles\/dpf-diesel-particulate-filter\/\">filtrem pevn\u00fdch <span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\">\u010d\u00e1stic<\/span><\/a> je tento \u010dern\u00fd kou\u0159 filtrov\u00e1n a doch\u00e1z\u00ed k\u00a0rychl\u00e9mu zan\u00e1\u0161en\u00ed filtru, nav\u00edc se i rychleji zan\u00e1\u0161\u00ed sac\u00ed potrub\u00ed a motor se dus\u00ed! Motor m\u00e1 sn\u00ed\u017een\u00fd v\u00fdkon v cel\u00e9m rozsahu ot\u00e1\u010dek. V posledn\u00ed f\u00e1zi zanesen\u00ed automobil \u0161patn\u011b startuje.<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009.jpg\" rel=\"attachment wp-att-7531\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7531 size-large\" title=\"vlevo je zane\u0161en\u00fd EGR ventil p\u0159ed \u010di\u0161t\u011bn\u00edm, vpravo je \u010dist\u00fd EGR\" src=\"http:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009-600x301.jpg\" alt=\"cs_egr_009\" width=\"600\" height=\"301\" srcset=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009-600x301.jpg 600w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009-199x100.jpg 199w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009-250x125.jpg 250w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009-768x385.jpg 768w, https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_009.jpg 997w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\"><strong><span style=\"font-family: verdana,geneva,sans-serif;\">P\u0158ED \u010cI\u0160T\u011aN\u00cdM\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VY\u010cI\u0160T\u011aN\u00dd\u00a0\u00a0 <\/span><\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Mo\u017enosti \u0159e\u0161en\u00ed probl\u00e9mu s EGR ventilem:<br \/>\n1\/ N\u00e1kup nov\u00e9ho EGR ventilu<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>2\/ Vy\u010di\u0161t\u011bn\u00ed ventilu ultrazvukem <\/strong>&#8211; demontovan\u00fd EGR ventil se vlo\u017e\u00ed do ultrazvukov\u00e9 \u010disti\u010dky, kter\u00e1 za pomoci speci\u00e1ln\u00ed kapaliny vy\u010dist\u00ed karbonov\u00e9 usazeniny ze v\u0161ech mezer. Vy\u010di\u0161t\u011bn\u00ed v ultrazvukov\u00e9 \u010disti\u010dce je \u0161etrn\u00e9 a nedoch\u00e1z\u00ed p\u0159i n\u011bm k po\u0161kozen\u00ed ventilu.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>3\/ Deaktivace nebo zaslepen\u00ed<\/strong> ventilu \u2013 u star\u0161\u00edch automobil\u016f sta\u010d\u00ed EGR ventil zaslepit, u nov\u011bj\u0161\u00edch motor\u016f je pot\u0159ebn\u00fd z\u00e1sah do \u0159\u00eddic\u00ed jednotky. Takov\u00e9 \u0159e\u0161en\u00ed ov\u0161em poru\u0161uje z\u00e1kon t\u00edm, \u017ee vozidlo p\u0159est\u00e1v\u00e1 plnit sv\u00e9 emisn\u00ed limity.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Historie<br \/>\n<\/strong>Kv\u016fli v\u00ed\u0161e popsan\u00fdm negativn\u00edm vliv\u016fm na v\u00fdkon a spot\u0159ebu motoru se za\u010dal EGR ventil prosazovat do s\u00e9riov\u00e9 v\u00fdroby a\u017e s\u00a0p\u0159\u00edchodem st\u00e1le p\u0159\u00edsn\u011bj\u0161\u00edch <a href=\"http:\/\/www.autolexicon.net\/articles\/emisni-norma-euro\/\">emisn\u00edch norem<\/a>. Nejprve si jeho nasazen\u00ed vy\u017e\u00e1dalo zp\u0159\u00edsn\u011bn\u00ed limit\u016f oxid\u016f dus\u00edku u naftov\u00fdch motor\u016f (Euro4). Dnes se ji\u017e objevuj\u00ed i nov\u00e9 benz\u00ednov\u00e9 motory, kter\u00e9 budou m\u00edt zp\u011btn\u00e9 veden\u00ed v\u00fdfukov\u00fdch plyn\u016f, nap\u0159. <a href=\"http:\/\/www.autolexicon.net\/articles\/tsi-twincharger-stratified-injection\/\">nov\u00fd motor 1.5 TSI<\/a> koncernu VW.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>V\u00edte, \u017ee:<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Vnit\u0159n\u00ed recirkulace<br \/>\n<\/strong>Zp\u011btn\u00e9ho nas\u00e1n\u00ed spalin do v\u00e1lce lze dos\u00e1hnout i vhodn\u00fdm \u010dasov\u00e1n\u00edm rozvod\u016f. Tento proces se naz\u00fdv\u00e1 <strong>vnit\u0159n\u00ed recirkulace<\/strong>. U tohoto zp\u016fsobu recirkulace nelze spaliny ochlazovat, proto je \u00fa\u010dinek ni\u017e\u0161\u00ed. Dal\u0161\u00ed nev\u00fdhodou je, \u017ee se zvy\u0161uje obsah pevn\u00fdch \u010d\u00e1stic.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"><strong>Foto\/zdroj: <\/strong>www.skoda-auto.cz, www.12gang.com<br \/>\n<strong>Kl\u00ed\u010dov\u00e1 slova:<\/strong> EGR, AGR, motor, zp\u011btn\u00e9 veden\u00ed v\u00fdfukov\u00fdch plyn\u016f, emise, EURO<\/span><\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>EGR ventil umo\u017e\u0148uje \u0159\u00edzen\u00e9 propojen\u00ed v\u00fdfukov\u00e9ho a sac\u00edho potrub\u00ed, \u010d\u00edm\u017e umo\u017e\u0148uje zp\u011btn\u00e9 veden\u00ed spalin do s\u00e1n\u00ed, s c\u00edlem sn\u00ed\u017eit emise v\u00fdfukov\u00fdch plyn\u016f.<\/p>\n","protected":false},"author":1,"featured_media":7523,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"facebook_10217573569066608_119527941460186":"","twitter_308591058_308591058":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","ngg_post_thumbnail":0,"two_page_speed":[],"footnotes":""},"categories":[1,751,678,29,4],"tags":[1323,1322,81,82,189,1324],"class_list":["post-7505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nezarazene","category-motor-casti-automobilu","category-pojmy","category-zkratky-a-pojmy","category-casti-automobilu","tag-agr","tag-egr","tag-euro","tag-emise","tag-motor","tag-zpetne-vedeni-vyfukovych-plynu"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>EGR (Exhaust Gas Recirculation) - autolexicon.net<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.autolexicon.net\/cs\/articles\/egr-exhaust-gas-recirculation\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EGR (Exhaust Gas Recirculation) - autolexicon.net\" \/>\n<meta property=\"og:description\" content=\"EGR ventil umo\u017e\u0148uje \u0159\u00edzen\u00e9 propojen\u00ed v\u00fdfukov\u00e9ho a sac\u00edho potrub\u00ed, \u010d\u00edm\u017e umo\u017e\u0148uje zp\u011btn\u00e9 veden\u00ed spalin do s\u00e1n\u00ed, s c\u00edlem sn\u00ed\u017eit emise v\u00fdfukov\u00fdch plyn\u016f.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.autolexicon.net\/cs\/articles\/egr-exhaust-gas-recirculation\/\" \/>\n<meta property=\"og:site_name\" content=\"autolexicon.net\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/autolexicon.net\" \/>\n<meta property=\"article:published_time\" content=\"2016-06-15T00:49:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-06-15T15:52:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.autolexicon.net\/obr_clanky\/cs_egr_006.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"650\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ing. 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