{"id":197431,"date":"2022-05-09T14:01:44","date_gmt":"2022-05-09T12:01:44","guid":{"rendered":"https:\/\/bandelin.com\/?p=197431"},"modified":"2025-11-27T14:54:37","modified_gmt":"2025-11-27T13:54:37","slug":"ultralydsrensning-af-landbrugsventiler","status":"publish","type":"post","link":"https:\/\/bandelin.com\/da\/anwendungen\/ultraschall-reinigung-von-agr-ventilen\/","title":{"rendered":"Ultralydsrensning af EGR-ventiler"},"content":{"rendered":"<div class=\"product\"><div class=\"product\"><p>En udst\u00f8dningsgasrecirkulationsventil (EGR) bruges til at reducere udledningen af kv\u00e6lstofoxid (NOx) i alle dieselmotorer fra Euro 5-emissionsstandarden og opefter. Dette opn\u00e5s ved at recirkulere varme udst\u00f8dningsgasser ind i motorens indsugningskanal. Det s\u00e6nker forbr\u00e6ndingstemperaturen i motoren og reducerer dannelsen af kv\u00e6lstofoxider.<\/p>\n<p>Den st\u00f8rste ulempe ved recirkulation af udst\u00f8dningsgas er den tekniske s\u00e5rbarhed af EGR-ventilen, som regulerer tilf\u00f8rslen af udst\u00f8dningsgas til forbr\u00e6ndingsluftstr\u00f8mmen. Br\u00e6ndstofrester som sod, oliekul og uforbr\u00e6ndt olie kommer ind i indsugningskanalen med udst\u00f8dningsgasrecirkulationen og kan begr\u00e6nse ventilens mekaniske man\u00f8vredygtighed eller tilstoppe r\u00f8rb\u00f8jningerne. Resultatet er en fejlfunktion i EGR-ventilen, som kan f\u00f8re til kraftig sodudvikling, nedsat motorydelse eller motorskade.<\/p>\n<p>For at undg\u00e5 alvorlige skader p\u00e5 motoren skal EGR-ventilen reng\u00f8res i god tid. Br\u00e6ndstofadditiver eller sprayrensere kan ikke hj\u00e6lpe p\u00e5 allerede forurenede ventiler p\u00e5 grund af den h\u00e5rdnakkede bel\u00e6gning, og ventilen skal fjernes. Effektiv og grundig reng\u00f8ring udf\u00f8res i ultralydsbadet sammen med et passende reng\u00f8ringskoncentrat. Afh\u00e6ngigt af graden af tilsmudsning anbefales forudg\u00e5ende manuel fjernelse af grove sodagglomerater med plast- eller tr\u00e6spatler. Efter restfri reng\u00f8ring kan ventilen bruges igen, og h\u00f8je udskiftningsomkostninger elimineres.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Ein Abgasr\u00fcckf\u00fchrungs-Ventil (AGR) dient allen Dieselmotoren ab Euro-5-Abgasnorm zur Reduzierung der Stickoxidemissionen (NOx). Dies erfolgt durch die R\u00fcckf\u00fchrung von hei\u00dfen Abgasen in den Ansaugkanal des Motors. Dadurch wird die Verbrennungstemperatur im Motor gesenkt und die Stickoxidentstehung vermindert. Der gro\u00dfe Nachteil der Abgasr\u00fcckf\u00fchrung ist die technische Anf\u00e4lligkeit des AGR-Ventils, welches die Zuf\u00fchrung des Abgases in den [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":619564,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[1891],"tags":[1913,1894,1909,1895,1955],"class_list":["post-197431","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anwendungen","tag-industrie","tag-kfz","tag-metall","tag-reinigen","tag-wartung"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ultraschall-Reinigung von AGR-Ventilen | BANDELIN electronic GmbH &amp; Co. 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