{"id":15319,"date":"2025-01-07T13:09:41","date_gmt":"2025-01-07T13:09:41","guid":{"rendered":"https:\/\/hydraflu.com\/?p=15319"},"modified":"2025-01-07T13:09:41","modified_gmt":"2025-01-07T13:09:41","slug":"a-guide-to-learn-open-loop-vs-closed-loop-hydraulic-system","status":"publish","type":"post","link":"https:\/\/hydraflu.com\/fr\/un-guide-pour-comprendre-la-difference-entre-un-systeme-hydraulique-a-boucle-ouverte-et-un-systeme-a-boucle-fermee\/","title":{"rendered":"Guide pour comprendre la diff\u00e9rence entre un syst\u00e8me hydraulique \u00e0 boucle ouverte et un syst\u00e8me \u00e0 boucle ferm\u00e9e"},"content":{"rendered":"<p>Les syst\u00e8mes hydrauliques sont essentiels au fonctionnement quotidien des camions. Pour fonctionner, ils doivent satisfaire deux conditions\u00a0: la pression et le d\u00e9bit. La ma\u00eetrise de l\u2019une ou l\u2019autre permet de contr\u00f4ler le syst\u00e8me hydraulique. Il est donc important de comprendre ces conditions et leur fonctionnement pour bien contr\u00f4ler le syst\u00e8me. Deux conceptions distinctes ont \u00e9t\u00e9 d\u00e9velopp\u00e9es pour contr\u00f4ler le d\u00e9bit et la pression\u00a0: les syst\u00e8mes hydrauliques \u00e0 boucle ouverte et les syst\u00e8mes \u00e0 boucle ferm\u00e9e.<\/p>\n<p>The terms &#8220;open-loop&#8221; and &#8220;closed-loop&#8221; distinguish system designs based on their technical construction. Each system denotes the nature of the hydraulic circuit employed within the system. Another distinction is the construction of the directional control valve.<\/p>\n<h2>Qu&#039;est-ce qu&#039;un syst\u00e8me hydraulique \u00e0 boucle ouverte\u00a0?<\/h2>\n<p>Pour comprendre le fonctionnement d&#039;un syst\u00e8me hydraulique en circuit ouvert, prenons l&#039;exemple d&#039;un syst\u00e8me o\u00f9 une pompe continue de fonctionner, que le syst\u00e8me ait besoin d&#039;\u00e9nergie ou non. Si le syst\u00e8me ne n\u00e9cessite pas de pression hydraulique, le fluide circule dans les conduites jusqu&#039;\u00e0 un r\u00e9servoir, et le cycle se poursuit.<\/p>\n<p>Ainsi, m\u00eame \u00e0 l&#039;arr\u00eat, ces syst\u00e8mes se caract\u00e9risent par un flux continu de fluide hydraulique \u00e0 travers le distributeur. La pompe \u00e0 cylindr\u00e9e fixe fonctionne en continu. Elle r\u00e9duit la pression lorsque le syst\u00e8me est inactif. D\u00e8s que l&#039;actionneur (par exemple, un v\u00e9rin ou un moteur) est mis en marche, le flux de fluide est redirig\u00e9 afin de fournir la puissance hydraulique n\u00e9cessaire \u00e0 l&#039;op\u00e9ration souhait\u00e9e.<\/p>\n<p>En r\u00e9sum\u00e9, la rotation de la pompe g\u00e9n\u00e8re un d\u00e9bit. Ce d\u00e9bit est ensuite renvoy\u00e9 au r\u00e9servoir par des conduites hydrauliques ou par un passage central au sein du distributeur. Le d\u00e9bit est dirig\u00e9 vers l&#039;application de la charge, ce qui g\u00e9n\u00e8re une pression. Ce ph\u00e9nom\u00e8ne se produit lors de la man\u0153uvre du distributeur. Ce dernier actionne les syst\u00e8mes et, lorsque la pression d\u00e9passe la charge, celle-ci se met en mouvement.<\/p>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"Syst\u00e8me hydraulique \u00e0 circuit ouvert ou ferm\u00e9\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/WAQ5hiJCvhE?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><\/div>\n<h2>Quels sont les composants d&#039;un syst\u00e8me hydraulique \u00e0 boucle ouverte\u00a0?<\/h2>\n<p>Le fonctionnement d&#039;un syst\u00e8me hydraulique en boucle ouverte repose sur quatre composants principaux\u00a0:<\/p>\n<ol>\n<li>\u00a0 \u00a0 \u00a0 Une pompe \u00e0 cylindr\u00e9e fixe pour un d\u00e9bit constant de fluide hydraulique.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Les vannes de contr\u00f4le directionnel permettent au fluide de circuler ou de le rediriger selon les besoins.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Un r\u00e9servoir qui servira \u00e0 stocker le fluide hydraulique.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Enfin, les conduites hydrauliques acheminent le fluide \u00e0 travers tout le syst\u00e8me.<img data-dominant-color=\"efefef\" data-has-transparency=\"false\" style=\"--dominant-color: #efefef;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-15330 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/01\/open-center.jpg\" alt=\"Syst\u00e8mes en boucle ouverte et syst\u00e8mes en boucle ferm\u00e9e\" width=\"400\" height=\"268\" \/><\/li>\n<\/ol>\n<h2>Quels sont les avantages des syst\u00e8mes hydrauliques \u00e0 boucle ouverte\u00a0?<\/h2>\n<p>La figure ci-dessous illustre la conception d&#039;un syst\u00e8me hydraulique \u00e0 circuit ouvert. Il s&#039;agit de syst\u00e8mes hydrauliques de conception simple. Cette simplicit\u00e9 les rend plus faciles \u00e0 comprendre et \u00e0 entretenir. La configuration simple permet de r\u00e9duire les co\u00fbts. Les composants sont \u00e9galement moins on\u00e9reux que ceux des syst\u00e8mes hydrauliques \u00e0 circuit ferm\u00e9.<\/p>\n<p>Cette simplicit\u00e9 facilite \u00e9galement la maintenance. Par exemple, le d\u00e9pannage et les r\u00e9parations sont moins complexes. Gr\u00e2ce \u00e0 ces avantages, ces syst\u00e8mes sont largement utilis\u00e9s dans des applications telles que les tracteurs anciens et les machines agricoles de base, o\u00f9 les op\u00e9rations monofonctionnelles suffisent et o\u00f9 la rentabilit\u00e9 est primordiale.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Fonctionnalit\u00e9<\/strong><\/td>\n<td><strong>Hydraulique en boucle ouverte<\/strong><\/td>\n<td><strong>Hydraulique en circuit ferm\u00e9<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>D\u00e9bit de fluide au repos<\/strong><\/td>\n<td>D\u00e9bit continu \u00e0 travers le syst\u00e8me, r\u00e9duisant la pression<\/td>\n<td>Pas de d\u00e9bit ; le syst\u00e8me maintient une pression \u00e9lev\u00e9e<\/td>\n<\/tr>\n<tr>\n<td><strong>Type de pompe<\/strong><\/td>\n<td>Pompe \u00e0 engrenages (cylindr\u00e9e fixe)<\/td>\n<td>Pompe \u00e0 cylindr\u00e9e variable<\/td>\n<\/tr>\n<tr>\n<td><strong>efficacit\u00e9 \u00e9nerg\u00e9tique<\/strong><\/td>\n<td>Efficacit\u00e9 r\u00e9duite en raison du d\u00e9bit de fluide constant<\/td>\n<td>Rendement sup\u00e9rieur\u00a0; la pompe s\u2019adapte \u00e0 la demande<\/td>\n<\/tr>\n<tr>\n<td><strong>Complexit\u00e9 du syst\u00e8me<\/strong><\/td>\n<td>Conception simple, facile d&#039;entretien<\/td>\n<td>Plus complexe, n\u00e9cessitant des composants pr\u00e9cis<\/td>\n<\/tr>\n<tr>\n<td><strong>Capacit\u00e9 multit\u00e2che<\/strong><\/td>\n<td>Limit\u00e9 ; une seule op\u00e9ration \u00e0 la fois<\/td>\n<td>Excellent ; g\u00e8re plusieurs t\u00e2ches simultan\u00e9ment<\/td>\n<\/tr>\n<tr>\n<td><strong>Applications typiques<\/strong><\/td>\n<td>Tracteurs plus anciens, machines de base<\/td>\n<td>Machines de pointe, \u00e9quipements industriels<\/td>\n<\/tr>\n<tr>\n<td><strong>Co\u00fbt<\/strong><\/td>\n<td>Co\u00fbts initiaux et d&#039;entretien r\u00e9duits<\/td>\n<td>Co\u00fbt plus \u00e9lev\u00e9 d\u00fb aux composants sophistiqu\u00e9s<\/td>\n<\/tr>\n<tr>\n<td><strong>Probl\u00e8mes courants<\/strong><\/td>\n<td>Surchauffe, chutes de pression<\/td>\n<td>Bruit de la pompe, d\u00e9faillances des joints d&#039;\u00e9tanch\u00e9it\u00e9, pics de pression<\/td>\n<\/tr>\n<tr>\n<td><strong>Fonctionnement de la vanne<\/strong><\/td>\n<td>Le fluide s&#039;\u00e9coule en continu \u00e0 l&#039;arr\u00eat.<\/td>\n<td>Les soupapes restent ferm\u00e9es au ralenti<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u00a0<\/strong><\/p>\n<h2>Qu&#039;est-ce que l&#039;hydraulique en circuit ferm\u00e9\u00a0?<\/h2>\n<p>Now that you have completely understood the open-loop hydraulic systems let us guide you through the second system. In a closed-loop hydraulic system, the pump&#8217;s rotation also generates flow. However, the flow is restricted to maintain the pump&#8217;s lubrication and to produce a standby pressure at the directional control valve. When a spool is caressed in a closed loop system, a passage is exposed for the flow to enter, and a pressure signal is transmitted from the directional control valve to the pump.<\/p>\n<p>Ce syst\u00e8me sert de signal \u00e0 la pompe pour g\u00e9n\u00e9rer le d\u00e9bit n\u00e9cessaire \u00e0 son fonctionnement. En d&#039;autres termes, les syst\u00e8mes hydrauliques en circuit ferm\u00e9 maintiennent le fluide \u00e0 haute pression. Ils fonctionnent m\u00eame lorsque le syst\u00e8me n&#039;est pas utilis\u00e9, contrairement aux syst\u00e8mes hydrauliques en circuit ouvert. \u00c0 la diff\u00e9rence de ces derniers, la pompe hydraulique d&#039;un syst\u00e8me en circuit ferm\u00e9 ajuste son d\u00e9bit en fonction de la demande, ce qui la rend plus efficace.<\/p>\n<h2>Quels sont les composants sp\u00e9cifiques aux syst\u00e8mes en boucle ferm\u00e9e ?<\/h2>\n<p>Tout comme les syst\u00e8mes hydrauliques \u00e0 boucle ouverte, les syst\u00e8mes hydrauliques \u00e0 boucle ferm\u00e9e comportent \u00e9galement quatre composants importants.<\/p>\n<ol>\n<li>\u00a0 \u00a0 \u00a0 Elle est \u00e9quip\u00e9e d&#039;une pompe \u00e0 cylindr\u00e9e variable, ce qui constitue une diff\u00e9rence majeure entre ces deux syst\u00e8mes. Cette pompe ajuste le d\u00e9bit et la pression en fonction des besoins du syst\u00e8me.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Les vannes de r\u00e9gulation de pression maintiennent le niveau de pression souhait\u00e9 au sein du syst\u00e8me.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Troisi\u00e8mement, un accumulateur stocke un fluide sous pression pour r\u00e9pondre \u00e0 des demandes soudaines.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Un r\u00e9servoir retient le fluide hydraulique lorsqu&#039;il n&#039;est pas en circulation.<img data-dominant-color=\"ededed\" data-has-transparency=\"false\" style=\"--dominant-color: #ededed;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-15332 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/01\/closed-center.jpg\" alt=\"Syst\u00e8mes en boucle ouverte et syst\u00e8mes en boucle ferm\u00e9e\" width=\"513\" height=\"366\" \/>s<\/li>\n<\/ol>\n<h2>Quels sont les avantages des syst\u00e8mes en boucle ferm\u00e9e\u00a0?<\/h2>\n<p>Les syst\u00e8mes en boucle ferm\u00e9e offrent plusieurs avantages techniques par rapport aux syst\u00e8mes hydrauliques en boucle ouverte. Ces atouts distincts les rendent id\u00e9aux pour les applications exigeantes \u00e0 forte charge. Ces syst\u00e8mes garantissent un rendement \u00e9lev\u00e9 en adaptant le d\u00e9bit de la pompe \u00e0 la demande r\u00e9elle, r\u00e9duisant ainsi consid\u00e9rablement le gaspillage d&#039;\u00e9nergie. L&#039;une de leurs caract\u00e9ristiques remarquables est leur capacit\u00e9 \u00e0 r\u00e9guler la pression et le d\u00e9bit ind\u00e9pendamment pour chaque op\u00e9ration, ce qui leur permet de g\u00e9rer plusieurs t\u00e2ches simultan\u00e9ment sans compromettre les performances. Les syst\u00e8mes en boucle ferm\u00e9e sont extr\u00eamement polyvalents, permettant un contr\u00f4le pr\u00e9cis et une grande adaptabilit\u00e9 \u00e0 diverses applications industrielles et agricoles o\u00f9 la performance et l&#039;efficacit\u00e9 sont essentielles.<\/p>\n<h2><strong>Quels sont les probl\u00e8mes courants li\u00e9s aux syst\u00e8mes hydrauliques \u00e0 boucle ouverte et \u00e0 boucle ferm\u00e9e\u00a0?<\/strong><\/h2>\n<p>Comme tous les syst\u00e8mes hydrauliques, ces deux syst\u00e8mes pr\u00e9sentent des probl\u00e8mes techniques et op\u00e9rationnels ponctuels. Toute machine a une dur\u00e9e de vie et des proc\u00e9dures d&#039;utilisation standard, dont le non-respect peut engendrer des probl\u00e8mes. De m\u00eame, voici quelques probl\u00e8mes courants rencontr\u00e9s dans les syst\u00e8mes hydrauliques \u00e0 circuit ouvert et \u00e0 circuit ferm\u00e9\u00a0:<\/p>\n<ol>\n<li>\u00a0 \u00a0 \u00a0 La surchauffe est un probl\u00e8me fr\u00e9quent dans les syst\u00e8mes hydrauliques \u00e0 circuit ouvert. Elle est due \u00e0 la circulation continue du fluide hydraulique, m\u00eame lorsque le syst\u00e8me est \u00e0 l&#039;arr\u00eat. La chaleur \u00e9tant une forme d&#039;\u00e9nergie, sa production peut entra\u00eener une baisse du rendement du syst\u00e8me.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Un autre probl\u00e8me courant est celui des fuites. Celles-ci proviennent souvent de joints us\u00e9s ou de flexibles endommag\u00e9s. La d\u00e9faillance des joints est \u00e9galement fr\u00e9quente dans les syst\u00e8mes hydrauliques en circuit ferm\u00e9 en raison d&#039;une exposition prolong\u00e9e \u00e0 des pressions \u00e9lev\u00e9es. Ces deux probl\u00e8mes entra\u00eenent une perte de pression, et des fuites de fluide peuvent se produire.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Un probl\u00e8me fr\u00e9quent est la chute de pression. Celle-ci est g\u00e9n\u00e9ralement due \u00e0 des obstructions dans les conduites hydrauliques ou \u00e0 l&#039;usure de la pompe. L&#039;usure des conduites hydrauliques les obstrue, ce qui diminue les performances du syst\u00e8me. Il est important de rappeler que les syst\u00e8mes hydrauliques n\u00e9cessitent un d\u00e9bit de fluide constant.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Le quatri\u00e8me probl\u00e8me courant est le bruit caus\u00e9 par la cavitation et l&#039;air emprisonn\u00e9 dans le syst\u00e8me. Vous devez <a href=\"https:\/\/hydraflu.com\/fr\/purger-lair-des-systemes-hydrauliques-en-circuit-ferme\/\">purger l&#039;air <\/a>de la ligne.<\/li>\n<li>\u00a0 \u00a0 \u00a0 De plus, ce bruit indique des inefficacit\u00e9s et des dommages potentiels \u00e0 la pompe si le probl\u00e8me n&#039;est pas r\u00e9solu rapidement.<\/li>\n<li>\u00a0 \u00a0 \u00a0 Les pics de pression constituent un autre probl\u00e8me fr\u00e9quent dans les syst\u00e8mes hydrauliques en circuit ferm\u00e9. Ces pics surviennent en cas de dysfonctionnement des vannes de r\u00e9gulation de pression. Outre les pics de pression, ils entra\u00eenent \u00e9galement une instabilit\u00e9 du syst\u00e8me et une usure pr\u00e9matur\u00e9e des composants.<\/li>\n<li>\u00a0 \u00a0 \u00a0 La r\u00e9solution de ces probl\u00e8mes par un entretien r\u00e9gulier et une d\u00e9tection pr\u00e9coce est essentielle au bon fonctionnement des syst\u00e8mes hydrauliques en boucle ferm\u00e9e.<\/li>\n<\/ol>\n<h2>Comment d\u00e9panner, entretenir et prendre soin d&#039;un syst\u00e8me hydraulique \u00e0 boucle ouverte et \u00e0 boucle ferm\u00e9e<\/h2>\n<p>Un entretien et une maintenance appropri\u00e9s sont essentiels pour tous les types de syst\u00e8mes hydrauliques. Il est n\u00e9cessaire de comprendre le fonctionnement des composants et du syst\u00e8me pour pouvoir diagnostiquer les pannes. En comprenant comment chaque composant est connect\u00e9 et comment il fonctionne, vous pouvez rapidement identifier la panne par une simple observation et une inspection.<\/p>\n<p>Pour cela, il est indispensable d&#039;inspecter r\u00e9guli\u00e8rement les flexibles, les joints et les raccords afin de d\u00e9tecter toute usure ou fuite. Cela vous permettra d&#039;\u00e9viter les pannes impr\u00e9vues. Le choix du fluide hydraulique appropri\u00e9 est primordial, car la compatibilit\u00e9 est essentielle au maintien de performances optimales.<\/p>\n<p>De plus, il est essentiel de maintenir le syst\u00e8me propre. Cela vous permettra d&#039;analyser et d&#039;\u00e9valuer rapidement toute fuite de fluide ou tout bruit anormal. Il faut donc veiller \u00e0 l&#039;absence de toute contamination. Toute contamination, qu&#039;il s&#039;agisse de salet\u00e9s, d&#039;eau ou d&#039;autres mati\u00e8res, entra\u00eene une usure des composants et, \u00e0 terme, une perte d&#039;efficacit\u00e9.<\/p>\n<p>Enfin, respectez les consignes du fabricant concernant l&#039;\u00e9talonnage de la pompe. Contr\u00f4lez syst\u00e9matiquement la pression du syst\u00e8me afin de garantir un fonctionnement s\u00fbr et efficace.<\/p>\n<h2>Conclusion<\/h2>\n<p>Comprendre les diff\u00e9rences de conception entre les syst\u00e8mes hydrauliques \u00e0 boucle ouverte et \u00e0 boucle ferm\u00e9e est essentiel pour choisir le syst\u00e8me adapt\u00e9 \u00e0 votre application. Les co\u00fbts et la maintenance associ\u00e9s facilitent \u00e9galement le choix du syst\u00e8me le plus appropri\u00e9 \u00e0 votre activit\u00e9. L&#039;un est simple, \u00e9conomique et convient aux machines de base, tandis que l&#039;autre offre une efficacit\u00e9 et une polyvalence \u00e9lev\u00e9es pour les applications complexes. Il est donc important de choisir le syst\u00e8me qui correspond \u00e0 vos besoins op\u00e9rationnels et \u00e0 vos capacit\u00e9s de maintenance.<\/p>\n<p>Tu peux <a href=\"https:\/\/hydraflu.com\/fr\/contactez-nous\/\">contact<\/a> Contactez notre \u00e9quipe d&#039;assistance client\u00e8le pour obtenir des informations plus d\u00e9taill\u00e9es ou une assistance.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Hydraulic systems are part of daily truck operations. To work, they need to meet two conditions: pressure and flow rate. Controlling either of them gives [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15319","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Guide to Learn open loop vs closed loop hydraulic system<\/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:\/\/hydraflu.com\/fr\/un-guide-pour-comprendre-la-difference-entre-un-systeme-hydraulique-a-boucle-ouverte-et-un-systeme-a-boucle-fermee\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Guide to Learn open loop vs closed loop hydraulic system\" \/>\n<meta property=\"og:description\" content=\"Hydraulic systems are part of daily truck operations. To work, they need to meet two conditions: pressure and flow rate. 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