{"id":39024,"date":"2024-03-06T07:58:55","date_gmt":"2024-03-06T06:58:55","guid":{"rendered":"https:\/\/www.krafthand.de\/truck\/?p=39024"},"modified":"2024-03-06T07:58:55","modified_gmt":"2024-03-06T06:58:55","slug":"neues-adblue-additiv-von-liqui-moly","status":"publish","type":"post","link":"https:\/\/www.krafthand.de\/truck\/artikel\/neues-adblue-additiv-von-liqui-moly-39024\/","title":{"rendered":"Neues AdBlue Additiv von Liqui Moly"},"content":{"rendered":"<p>Der Schmierstoff-Spezialist Liqui Moly hat mit \u201aDEF Anti Crystal Additive K\u2018 ein Additiv speziell f\u00fcr die Harnstoffl\u00f6sung AdBlue vorgestellt. Der Wirkungskreis des Additivs ist das SCR-System. Die zentrale Komponente der SCR-Nachbehandlungstechnologie ist das Dosiersystem. Das Herzst\u00fcck ist die Pumpe. Dort k\u00f6nnen R\u00fcckst\u00e4nde entstehen, weil AdBlue zu rund zwei Drittel aus demineralisiertem Wasser und zu ungef\u00e4hr einem Drittel aus Harnstoff besteht. Beim Erhitzen dieses Stoffes entstehen unter Abspaltung von Ammoniak die organischen Verbindungen Biuret und Tiuret.<\/p>\n<blockquote><p>\u201eIn Leitungen oder in Dosierventilen bilden sich Harnstoffkristalle. Das geschieht, wenn das Wasser in den Leitungen verdunstet oder verdampft\u201c, erkl\u00e4rt David Kaiser, Entwicklungsleiter bei Liqui Moly. Im Extremfall f\u00fchrt das zu einer Verstopfung im AdBlue-System. Dies wiederum kann zu Besch\u00e4digungen der Pumpe und Einspritzd\u00fcsen f\u00fchren oder zu einer Fehlermeldung in der Motorsteuerung. Das im Additiv enthaltene Tensid verringert die Oberfl\u00e4chenspannung im AdBlue. Es verhindert, dass Tropfen entstehen. So bilden sich keine st\u00f6renden Kristalle und Ablagerungen an der Einspritzd\u00fcse k\u00f6nnen verhindert werden.&#8220;<\/p><\/blockquote>\n<p>K\u00e4lteempfindlichkeit ist die zweite Schwachstelle der w\u00e4ssrigen L\u00f6sung. Um das SCR-System vor dem Einfrieren der Fl\u00fcssigkeit zu sch\u00fctzen, verwenden die Fahrzeughersteller Heizungen. Allerdings werden diese nur aktiviert, wenn der Motor gestartet wird. <em>\u201eAb -11,5 \u00b0C gefriert AdBlue. Mit unserem Zusatz kann man den Gefrierpunkt auf ungef\u00e4hr -16 \u00b0C senken\u201c<\/em>, so Kaiser. Weil beispielsweise Baufahrzeuge h\u00e4ufig ungesch\u00fctzt vor K\u00e4lte auf Baustellen stehen, erh\u00f6ht sich im Winter das Ausfallrisiko. Diverse Bauunternehmen und auch Werkst\u00e4tten hatten sich mit der Frage nach einem das Problem l\u00f6senden Produkt an <a href=\"https:\/\/www.liqui-moly.com\/de\/de\/\" target=\"_blank\" rel=\"noopener\">Liqui Moly<\/a> gewandt. Herausgekommen ist das DEF Anti Crystal Additive K. Allerdings wirkt das Additiv nur vorbeugend. Bestehende Kristallisation kann nur mechanisch entfernt werden. In den meisten F\u00e4llen bedeutet dies den teuren Tausch von Teilen.<\/p>\n<p><i>Den Beitrag finden Sie auch in der Print-Ausgabe 1-2024 der <a href=\"https:\/\/www.krafthand.de\/truck\/magazin\/\" title=\"Zum Magazin\">Krafthand-Truck<\/a>.<\/i><\/p>","protected":false},"excerpt":{"rendered":"<p>Der Schmierstoff-Spezialist Liqui Moly hat mit \u201aDEF Anti Crystal Additive K\u2018 ein Additiv speziell f\u00fcr die Harnstoffl\u00f6sung AdBlue vorgestellt. Der Wirkungskreis des Additivs ist das SCR-System. <span class=\"excerpt-more__dots\">&#8230;<\/span> <a class=\"excerpt-more__link\" href=\"https:\/\/www.krafthand.de\/truck\/artikel\/neues-adblue-additiv-von-liqui-moly-39024\/\" >weiter<\/a><\/p>\n","protected":false},"author":9,"featured_media":39025,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4253],"tags":[5885,249],"settings":[4766,3523],"class_list":["post-39024","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-schmierstoffe","tag-adblue-additiv","tag-liqui-moly"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AdBlue-Additiv von Liqui Moly I Krafthand Truck<\/title>\n<meta name=\"description\" content=\"Der Schmierstoff-Spezialist Liqui Moly hat mit \u201aDEF Anti Crystal Additive K\u2018 ein Additiv 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