{"id":8656,"date":"2021-07-20T09:55:14","date_gmt":"2021-07-20T07:55:14","guid":{"rendered":"https:\/\/dienerprecisionpumps.com\/?p=8656"},"modified":"2022-12-12T10:54:27","modified_gmt":"2022-12-12T09:54:27","slug":"pompes-a-engrenages-a-couplage-magnetique","status":"publish","type":"post","link":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/","title":{"rendered":"Pompes \u00e0 engrenages \u00e0 couplage magn\u00e9tique"},"content":{"rendered":"\n

Qu’est-ce qu’une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique ?<\/h2>\n\n\n\n

Les pompes \u00e0 engrenages externes traditionnelles utilisent un arbre moteur qui est directement coupl\u00e9 \u00e0 un engrenage d’entra\u00eenement \u00e0 l’int\u00e9rieur de la pompe. Pour r\u00e9aliser cet accouplement, l’arbre doit traverser un joint coulissant. Le composant limitant la dur\u00e9e de vie d’une pompe \u00e0 entra\u00eenement direct est le joint. Quels que soient le type et la qualit\u00e9 du joint, le joint s’usera et finira par fuir. Les pompes \u00e0 engrenages<\/a> coupl\u00e9es magn\u00e9tiquement \u00e9vitent que le joint limite la dur\u00e9e de vie en utilisant un accouplement magn\u00e9tique pour transf\u00e9rer le couple dans la pompe. Cela \u00e9tablit un joint herm\u00e9tique tout en couplant le moteur \u00e0 l’engrenage d’entra\u00eenement.<\/p>\n\n\n\n

\"Pompe
Pompe \u00e0 engrenages \u00e0 entra\u00eenement direct avec joint \u00e0 dur\u00e9e de vie limit\u00e9e.<\/figcaption><\/figure>\n\n\n\n

Couplage magn\u00e9tique traditionnel<\/h2>\n\n\n\n

Les accouplements magn\u00e9tiques traditionnels ont un aimant interne \u00e0 la pompe qui est attach\u00e9 \u00e0 l’engrenage d’entra\u00eenement. L’aimant peut \u00eatre un simple aimant en ferrite ou, pour des forces de couplage plus \u00e9lev\u00e9es, un aimant fait de m\u00e9taux des terres rares. Typiquement, l’aimant est enferm\u00e9 dans une enveloppe en m\u00e9tal ou en plastique pour emp\u00eacher le contact avec le fluide pomp\u00e9. La chemise assure \u00e9galement l’accouplement \u00e0 l’engrenage d’entra\u00eenement. Une fine barri\u00e8re m\u00e9tallique s\u00e9pare le fluide de l’atmosph\u00e8re. Un deuxi\u00e8me aimant, fix\u00e9 au moteur, est externe \u00e0 la barri\u00e8re fluidique et est magn\u00e9tis\u00e9 pour former un couplage avec l’aimant interne. L’aimant externe peut \u00eatre en ferrite ou en alliages de terres rares. La force magn\u00e9tique diminue avec la distance au carr\u00e9, il est donc essentiel de minimiser la distance entre les aimants. Cela n\u00e9cessite un usinage et un assemblage de pr\u00e9cision pour une conception efficace.<\/p>\n\n\n\n

\"Mod\u00e8le
Couplage magn\u00e9tique traditionnel<\/figcaption><\/figure>\n\n\n\n

Avantages<\/strong><\/p>\n\n\n\n

\u2022 \u00c9limine le joint coulissant, prolongeant ainsi la dur\u00e9e de vie de la pompe et r\u00e9duisant la tra\u00een\u00e9e de friction
\u2022 Permet l’utilisation de tout type et taille de moteur
\u2022 Isole le moteur g\u00e9n\u00e9rant de la chaleur du fluide pomp\u00e9
\u2022 Capable d’un couplage magn\u00e9tique tr\u00e8s puissant lorsque les aimants internes et externes sont en alliages de terres rares.<\/p>\n\n\n\n

Inconv\u00e9nients<\/strong><\/p>\n\n\n\n

\u2022 L’ajout de l’accouplement magn\u00e9tique augmente la taille globale de l’ensemble de la pompe
\u2022 Co\u00fbts suppl\u00e9mentaires en raison d’aimants et de supports suppl\u00e9mentaires<\/p>\n\n\n\n

Entra\u00eenement magn\u00e9tique direct<\/h2>\n\n\n\n

Dans ce cas l’accouplement magn\u00e9tique traditionnel est remplac\u00e9 par un entra\u00eenement magn\u00e9tique direct. Cet entra\u00eenement utilise l’aimant interne de la pompe comme rotor pour un moteur \u00e0 courant continu brushless. Cette m\u00e9thode \u00e9limine le moteur autonome, les supports suppl\u00e9mentaires et l’aimant externe. Le produit r\u00e9sultant est une pompe compacte, peu co\u00fbteuse et herm\u00e9tiquement scell\u00e9e. Pour faire un moteur \u00e0 courant continu brushless efficace dans cette configuration, l’aimant interne doit \u00eatre fabriqu\u00e9 \u00e0 partir d’un alliage constitu\u00e9 de terres rares. Cependant, l’espace autour de l’aimant et la barri\u00e8re entre le fluide et l’atmosph\u00e8re peuvent \u00eatre les m\u00eames que pour un couplage magn\u00e9tique traditionnel.<\/p>\n\n\n\n

\"Pi\u00e8ces
Entra\u00eenement magn\u00e9tique direct<\/figcaption><\/figure>\n\n\n\n

Avantages<\/strong><\/p>\n\n\n\n

\u2022 \u00c9limine le joint coulissant, prolongeant ainsi la dur\u00e9e de vie de la pompe et r\u00e9duisant la tra\u00een\u00e9e de friction
\u2022 La conception compacte permet un placement dans des espaces restreints
\u2022 Moins de composants requis, ce qui r\u00e9duit les co\u00fbts de fabrication
\u2022 Dur\u00e9e de vie la plus longue car il n’y a pas de roulements \u00e0 billes en sortie du moteur<\/p>\n\n\n\n

Inconv\u00e9nients<\/strong><\/p>\n\n\n\n

\u2022 Il existe des limitations de puissance et de type d’entr\u00e9e bas\u00e9es sur le portefeuille de produits du fournisseur de la pompe.
\u2022 Les serpentins de production de chaleur sont situ\u00e9s \u00e0 proximit\u00e9 de la pompe, ajoutant potentiellement de la chaleur au syst\u00e8me de fluide. Il s’agit g\u00e9n\u00e9ralement d’un effet mineur et uniquement pr\u00e9occupant pour les petits syst\u00e8mes en boucle ferm\u00e9e.<\/p>\n","protected":false},"excerpt":{"rendered":"

Qu’est-ce qu’une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique ? Les pompes \u00e0 engrenages externes traditionnelles utilisent un arbre moteur qui est directement coupl\u00e9 \u00e0 un engrenage d’entra\u00eenement \u00e0 l’int\u00e9rieur de la pompe. Pour r\u00e9aliser cet accouplement, l’arbre doit traverser un joint coulissant. Le composant limitant la dur\u00e9e de vie d’une pompe \u00e0 entra\u00eenement direct est […]<\/p>\n","protected":false},"author":21,"featured_media":8657,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-8656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"acf":[],"yoast_head":"\nPompes \u00e0 engrenage, couplage magn\u00e9tique | Diener Precision Pumps<\/title>\n<meta name=\"description\" content=\"Une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique, quelle est la diff\u00e9rence entre un accouplement magn\u00e9tique traditionnel et un syst\u00e8me magn\u00e9tique direct ?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pompes \u00e0 engrenage, couplage magn\u00e9tique | Diener Precision Pumps\" \/>\n<meta property=\"og:description\" content=\"Une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique, quelle est la diff\u00e9rence entre un accouplement magn\u00e9tique traditionnel et un syst\u00e8me magn\u00e9tique direct ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/\" \/>\n<meta property=\"og:site_name\" content=\"Diener Precision Pumps\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-20T07:55:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-12T09:54:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dpp.darwinstaging.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1485\" \/>\n\t<meta property=\"og:image:height\" content=\"1293\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"camille.lepert@acrotec.ch\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"camille.lepert@acrotec.ch\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Pompes \u00e0 engrenage, couplage magn\u00e9tique | Diener Precision Pumps","description":"Une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique, quelle est la diff\u00e9rence entre un accouplement magn\u00e9tique traditionnel et un syst\u00e8me magn\u00e9tique direct ?","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/","og_locale":"fr_FR","og_type":"article","og_title":"Pompes \u00e0 engrenage, couplage magn\u00e9tique | Diener Precision Pumps","og_description":"Une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique, quelle est la diff\u00e9rence entre un accouplement magn\u00e9tique traditionnel et un syst\u00e8me magn\u00e9tique direct ?","og_url":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/","og_site_name":"Diener Precision Pumps","article_published_time":"2021-07-20T07:55:14+00:00","article_modified_time":"2022-12-12T09:54:27+00:00","og_image":[{"width":1485,"height":1293,"url":"https:\/\/dpp.darwinstaging.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg","type":"image\/jpeg"}],"author":"camille.lepert@acrotec.ch","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"camille.lepert@acrotec.ch","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#article","isPartOf":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/"},"author":{"name":"camille.lepert@acrotec.ch","@id":"https:\/\/dienerprecisionpumps.com\/fr\/#\/schema\/person\/5c799613ce18f303f8c1791ab5015f23"},"headline":"Pompes \u00e0 engrenages \u00e0 couplage magn\u00e9tique","datePublished":"2021-07-20T07:55:14+00:00","dateModified":"2022-12-12T09:54:27+00:00","mainEntityOfPage":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/"},"wordCount":690,"commentCount":0,"publisher":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/#organization"},"image":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#primaryimage"},"thumbnailUrl":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg","articleSection":["Non classifi\u00e9(e)"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/","url":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/","name":"Pompes \u00e0 engrenage, couplage magn\u00e9tique | Diener Precision Pumps","isPartOf":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#primaryimage"},"image":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#primaryimage"},"thumbnailUrl":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg","datePublished":"2021-07-20T07:55:14+00:00","dateModified":"2022-12-12T09:54:27+00:00","description":"Une pompe \u00e0 engrenages \u00e0 couplage magn\u00e9tique, quelle est la diff\u00e9rence entre un accouplement magn\u00e9tique traditionnel et un syst\u00e8me magn\u00e9tique direct ?","breadcrumb":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#primaryimage","url":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg","contentUrl":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2021\/07\/pompe-a-engrenage-magnetique.jpg","width":1485,"height":1293,"caption":"pompe-a-engrenage-magnetique"},{"@type":"BreadcrumbList","@id":"https:\/\/dienerprecisionpumps.com\/fr\/pompes-a-engrenages-a-couplage-magnetique\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/dienerprecisionpumps.com\/fr\/"},{"@type":"ListItem","position":2,"name":"Pompes \u00e0 engrenages \u00e0 couplage magn\u00e9tique"}]},{"@type":"WebSite","@id":"https:\/\/dienerprecisionpumps.com\/fr\/#website","url":"https:\/\/dienerprecisionpumps.com\/fr\/","name":"Diener Precision Pumps","description":"Engineering your flow","publisher":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dienerprecisionpumps.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/dienerprecisionpumps.com\/fr\/#organization","name":"Diener Precision Pumps","alternateName":"DPP","url":"https:\/\/dienerprecisionpumps.com\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/dienerprecisionpumps.com\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2025\/07\/Diener-Precision-Pumps.svg","contentUrl":"https:\/\/dienerprecisionpumps.com\/wp-content\/uploads\/2025\/07\/Diener-Precision-Pumps.svg","width":179,"height":44,"caption":"Diener Precision Pumps"},"image":{"@id":"https:\/\/dienerprecisionpumps.com\/fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/diener-precision-pumps\/","https:\/\/www.youtube.com\/@DienerPrecisionPumpsOfficial"]},{"@type":"Person","@id":"https:\/\/dienerprecisionpumps.com\/fr\/#\/schema\/person\/5c799613ce18f303f8c1791ab5015f23","name":"camille.lepert@acrotec.ch","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/secure.gravatar.com\/avatar\/49a976ade326325809c47b5ba5d7492693a279ac909986f3815618c36d544b80?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/49a976ade326325809c47b5ba5d7492693a279ac909986f3815618c36d544b80?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/49a976ade326325809c47b5ba5d7492693a279ac909986f3815618c36d544b80?s=96&d=mm&r=g","caption":"camille.lepert@acrotec.ch"}}]}},"_links":{"self":[{"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/posts\/8656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/comments?post=8656"}],"version-history":[{"count":0,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/posts\/8656\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/media\/8657"}],"wp:attachment":[{"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/media?parent=8656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/categories?post=8656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dienerprecisionpumps.com\/fr\/wp-json\/wp\/v2\/tags?post=8656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}