{"id":4518,"date":"2026-04-07T03:35:35","date_gmt":"2026-04-07T03:35:35","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4518"},"modified":"2026-04-07T03:35:35","modified_gmt":"2026-04-07T03:35:35","slug":"le-fonctionnement-des-pompes-hydrauliques-types","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/","title":{"rendered":"Fonctionnement des pompes hydrauliques, types"},"content":{"rendered":"<section><span style=\"font-size: 1.7em; font-weight: bold;\">Qu'est-ce qu'une pompe hydraulique ?<\/span><\/section>\n<section>Une pompe hydraulique convertit l'\u00e9nergie m\u00e9canique d'un moteur en \u00e9nergie hydraulique en produisant un d\u00e9bit. La pression du syst\u00e8me provient de la r\u00e9sistance en aval ; la pompe ne cr\u00e9e pas de pression. Des tol\u00e9rances \u00e9troites permettent un auto-amor\u00e7age et un fonctionnement \u00e0 haute pression.<\/section>\n<section>\n<h2>Comment \u00e7a marche<\/h2>\n<p>L'\u00e9l\u00e9ment rotatif cr\u00e9e une basse pression \u00e0 l'entr\u00e9e, la pression atmosph\u00e9rique pousse le fluide du r\u00e9servoir dans la pompe. Les chambres rotatives transportent le fluide vers la sortie, ce qui permet d'alimenter le circuit. Le blocage de la sortie provoque des pics de pression dangereux qui peuvent endommager la pompe.<\/p>\n<\/section>\n<section>\n<h2>Classes de pompes<\/h2>\n<p>Pompes volum\u00e9triques et pompes non volum\u00e9triques. Les pompes volum\u00e9triques d\u00e9placent un volume presque fixe par rotation avec un glissement minimal, ce qui est id\u00e9al pour les syst\u00e8mes hydrauliques \u00e0 haute pression. Les pompes non volum\u00e9triques permettent le glissement ; le d\u00e9bit varie en fonction de la restriction de la sortie, ce qui convient aux t\u00e2ches de circulation.<\/p>\n<\/section>\n<section>\n<h2>Types courants<\/h2>\n<p>Les pompes volum\u00e9triques utilis\u00e9es dans l'hydraulique industrielle sont les suivantes <a href=\"\/hydraulic-gear-pump\/\">engrenage<\/a>, Les pompes non positives (hydrodynamiques) sont utilis\u00e9es pour la circulation. Le d\u00e9placement peut \u00eatre fixe ou variable ; les mod\u00e8les variables modifient la g\u00e9om\u00e9trie de la chambre (par exemple, le plateau oscillant).<\/p>\n<h3>Pompes \u00e0 engrenages<\/h3>\n<p><strong>Pompe \u00e0 engrenage externe<\/strong> - deux engrenages droits externes cr\u00e9ent une aspiration \u00e0 l'entr\u00e9e et transportent le fluide autour du bo\u00eetier. D\u00e9placement fixe ; pression typique 150-300 Bar (\u2248 2175-4350 PSI). Simple, robuste, rentable ; efficacit\u00e9 et bruit mod\u00e9r\u00e9s.<\/p>\n<p><strong>Pompe \u00e0 engrenage interne<\/strong> - une paire d'engrenages interne-externe dans une disposition compacte am\u00e9liore l'aspiration et r\u00e9duit le bruit ; largement utilis\u00e9 dans les syst\u00e8mes industriels\/mobiles. Pression typique jusqu'\u00e0 ~400 Bar (\u2248 5800 PSI) selon la s\u00e9rie de produits.<\/p>\n<p><strong>Options<\/strong>: jeux d'engrenages simples, bidirectionnels et doubles (HI-LO) ; tailles de groupe normalis\u00e9es pour l'int\u00e9gration.<\/p>\n<div id='gallery-1' class='gallery galleryid-4518 gallery-columns-5 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/gear-pump\/'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"202\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/gear-pump-300x202.jpg\" class=\"attachment-medium size-medium\" alt=\"pompe \u00e0 engrenages\" aria-describedby=\"gallery-1-4520\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/gear-pump-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/gear-pump-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/gear-pump-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/gear-pump.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4520'>\n\t\t\t\tPompe \u00e0 engrenages\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/internal-external-gear-pump\/'><img decoding=\"async\" width=\"300\" height=\"202\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Internal-external-gear-pump-300x202.jpg\" class=\"attachment-medium size-medium\" alt=\"Pompe \u00e0 engrenages internes et externes\" aria-describedby=\"gallery-1-4521\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Internal-external-gear-pump-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Internal-external-gear-pump-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Internal-external-gear-pump-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Internal-external-gear-pump.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-4521'>\n\t\t\t\tPompe \u00e0 engrenages internes et externes\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<h3>Pompes \u00e0 palettes<\/h3>\n<p>Conception \u00e0 simple ou double effet ; des ailettes coulissantes dans un anneau de came cr\u00e9ent une alternance d'augmentation et de diminution du volume de la chambre. D\u00e9placement fixe ou variable. Pression typique 70-200 Bar (\u2248 1015-2900 PSI). Faible bruit, d\u00e9bit r\u00e9gulier ; n\u00e9cessite une huile plus propre et un r\u00e9glage pr\u00e9cis.<\/p>\n<p>Convient aux machines-outils et aux syst\u00e8mes qui privil\u00e9gient le confort acoustique et la r\u00e9gularit\u00e9 du d\u00e9bit.<\/p>\n<div id='gallery-2' class='gallery galleryid-4518 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/vane-pump\/'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Vane-pump-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Pompe \u00e0 palettes\" aria-describedby=\"gallery-2-4522\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-4522'>\n\t\t\t\tPompe \u00e0 palettes\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/vane-pump-work\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Vane-pump-work-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-2-4523\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-4523'>\n\t\t\t\tTravail sur la pompe \u00e0 palettes\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<h3>Pompes \u00e0 piston<\/h3>\n<p><strong>Piston axial (plateau cyclique)<\/strong> - pistons dispos\u00e9s autour d'un bloc-cylindres ; l'angle du plateau cyclique d\u00e9termine la cylindr\u00e9e (fixe ou variable). Rendement \u00e9lev\u00e9 ; pression typique 250-350 Bar+ (\u2248 3625-5075 PSI). Prise en charge de la compensation pression\/d\u00e9bit et de la commande \u00e0 d\u00e9tection de charge.<\/p>\n<p><strong>Piston radial<\/strong> - pistons dispos\u00e9s radialement ; tr\u00e8s haute pression \u00e0 faible d\u00e9bit pour les syst\u00e8mes \u00e0 usage intensif. Les mod\u00e8les sp\u00e9cialis\u00e9s peuvent atteindre ~650 Bar (\u2248 9427 PSI).<\/p>\n<p><strong>Pour\/Contre<\/strong>Les caract\u00e9ristiques de ces syst\u00e8mes sont les suivantes : rendement et capacit\u00e9 de pression les plus \u00e9lev\u00e9s ; co\u00fbt plus \u00e9lev\u00e9 et exigences en mati\u00e8re de propret\u00e9\/pr\u00e9cision de l'entretien.<\/p>\n<div id='gallery-3' class='gallery galleryid-4518 gallery-columns-5 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/piston-pump-work\/'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"202\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-work-300x202.jpg\" class=\"attachment-medium size-medium\" alt=\"\" aria-describedby=\"gallery-3-4525\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-work-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-work-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-work-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-work.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-4525'>\n\t\t\t\tTravail sur la pompe \u00e0 piston\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/how-hydraulic-pumps-work-types\/piston-pump\/'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"202\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-300x202.jpg\" class=\"attachment-medium size-medium\" alt=\"Pompe \u00e0 piston\" aria-describedby=\"gallery-3-4524\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Piston-pump.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-4524'>\n\t\t\t\tPompe \u00e0 piston\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<h3><a href=\"\/hand-pump\/\">Pompes \u00e0 main<\/a><\/h3>\n<p>Pompes volum\u00e9triques manuelles utilis\u00e9es pour l'alimentation d'urgence\/de secours ou la mise en service ; simples et fiables avec un faible d\u00e9bit et une pression contr\u00f4l\u00e9e par l'op\u00e9rateur.<\/p>\n<h3>Pompes non positives (hydrodynamiques)<\/h3>\n<p>Le d\u00e9bit varie en fonction de la restriction de la sortie en raison d'un glissement intentionnel ; convient aux t\u00e2ches de circulation et de refroidissement plut\u00f4t qu'\u00e0 l'hydraulique \u00e0 haute pression.<\/p>\n<\/section>\n<section>\n<h2>Comment dimensionner une pompe<\/h2>\n<ol>\n<li>D\u00e9finir la pression de service maximale de l'actionneur (Bar\/PSI).<\/li>\n<li>D\u00e9terminer le d\u00e9bit requis pour la vitesse cible (LPM\/GPM), puis calculer la cylindr\u00e9e si n\u00e9cessaire.<\/li>\n<li>V\u00e9rifier le type de fluide, la viscosit\u00e9 et la plage de temp\u00e9rature ; concevoir l'aspiration de mani\u00e8re \u00e0 \u00e9viter la cavitation.<\/li>\n<li>Faire correspondre le moteur principal et le cycle de fonctionnement (IEC 60034-1, S3\/S4) au comportement thermique.<\/li>\n<li>Choisissez la cylindr\u00e9e (fixe ou variable), le contr\u00f4le (pression\/d\u00e9bit\/sens de la charge), les orifices\/manifold et la classe de filtration.<\/li>\n<\/ol>\n<h3>Conversions rapides<\/h3>\n<ul>\n<li>1 GPM \u2248 3.785 L\/min<\/li>\n<li>1 Bar \u2248 14.5038 PSI<\/li>\n<\/ul>\n<\/section>\n<section>\n<h2>Engrenages, palettes et pistons : Comparaison technique<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Fonctionnalit\u00e9<\/th>\n<th>Engrenages<\/th>\n<th>Girouette<\/th>\n<th>Piston<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Pression typique<\/td>\n<td>150-300 Bar<\/td>\n<td>Barre 70-200<\/td>\n<td>250-350 bars<\/td>\n<\/tr>\n<tr>\n<td>Efficacit\u00e9<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Mod\u00e9r\u00e9e-\u00e9lev\u00e9e<\/td>\n<td>Haut<\/td>\n<\/tr>\n<tr>\n<td>Bruit<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible-mod\u00e9r\u00e9<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Co\u00fbt<\/td>\n<td>Faible-mod\u00e9r\u00e9<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Maintenance<\/td>\n<td>Faible<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Options de contr\u00f4le<\/td>\n<td>D\u00e9placement en grande partie fixe<\/td>\n<td>Options fixes\/variables<\/td>\n<td>Fixe\/variable (plateau cyclique)<\/td>\n<\/tr>\n<tr>\n<td>Utilisation typique<\/td>\n<td>Usage g\u00e9n\u00e9ral industriel\/mobile<\/td>\n<td>Syst\u00e8mes \u00e0 faible bruit et \u00e0 d\u00e9bit r\u00e9gulier<\/td>\n<td>Haute pression et contr\u00f4le variable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Conclusion<\/strong>: Choisissez l'engrenage pour un usage g\u00e9n\u00e9ral robuste, la palette pour un bruit r\u00e9duit et un d\u00e9bit r\u00e9gulier, le piston pour une pression \u00e9lev\u00e9e et un contr\u00f4le variable.<\/p>\n<\/section>\n<section>\n<h2>Tableaux comparatifs d\u00e9taill\u00e9s<\/h2>\n<h3>Pompes \u00e0 engrenages externes ou internes<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Attribut<\/th>\n<th>Engrenage externe<\/th>\n<th>Engrenage interne<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mise en page<\/td>\n<td>Deux roues dent\u00e9es externes<\/td>\n<td>Paire d'engrenages internes-externes<\/td>\n<\/tr>\n<tr>\n<td>Pression typique<\/td>\n<td>150-300 Bar<\/td>\n<td>Jusqu'\u00e0 ~400 Bar (en fonction de la s\u00e9rie)<\/td>\n<\/tr>\n<tr>\n<td>Bruit<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Performance d'aspiration<\/td>\n<td>Standard<\/td>\n<td>Am\u00e9lior\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>D\u00e9placement<\/td>\n<td>Fixe<\/td>\n<td>Fixe<\/td>\n<\/tr>\n<tr>\n<td>Co\u00fbt<\/td>\n<td>Plus bas<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Applications<\/td>\n<td>Industrie g\u00e9n\u00e9rale\/mobile<\/td>\n<td>Industriel\/mobile, agencements compacts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Pompes \u00e0 palettes \u00e0 simple action ou \u00e0 double action<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Attribut<\/th>\n<th>Simple action<\/th>\n<th>Double action<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Cycles par r\u00e9volution<\/td>\n<td>Une aspiration + un refoulement<\/td>\n<td>Deux aspirations + deux refoulements<\/td>\n<\/tr>\n<tr>\n<td>Ondulation du flux<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Bruit<\/td>\n<td>Faible-mod\u00e9r\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Gamme de pression<\/td>\n<td>~70-200 Bar<\/td>\n<td>~70-200 Bar<\/td>\n<\/tr>\n<tr>\n<td>Options de contr\u00f4le<\/td>\n<td>Fixe ou variable<\/td>\n<td>Fixe ou variable<\/td>\n<\/tr>\n<tr>\n<td>Maintenance<\/td>\n<td>Mod\u00e9r\u00e9e (usure des aubes)<\/td>\n<td>Mod\u00e9r\u00e9 (plus de pi\u00e8ces)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Pompes \u00e0 pistons axiaux et radiaux<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Attribut<\/th>\n<th>Axiale (plateau cyclique)<\/th>\n<th>Radial<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Capacit\u00e9 de pression<\/td>\n<td>250-350 bars<\/td>\n<td>Tr\u00e8s \u00e9lev\u00e9 (sp\u00e9cialis\u00e9 jusqu'\u00e0 ~650 Bar)<\/td>\n<\/tr>\n<tr>\n<td>Caract\u00e9ristiques de l'\u00e9coulement<\/td>\n<td>D\u00e9bits plus \u00e9lev\u00e9s, compacts<\/td>\n<td>D\u00e9bit plus faible, pression tr\u00e8s \u00e9lev\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le du d\u00e9placement<\/td>\n<td>Fixe ou variable (angle d'oscillation)<\/td>\n<td>G\u00e9n\u00e9ralement fixe ; contr\u00f4les sp\u00e9cialis\u00e9s<\/td>\n<\/tr>\n<tr>\n<td>Efficacit\u00e9<\/td>\n<td>Haut<\/td>\n<td>Haut<\/td>\n<\/tr>\n<tr>\n<td>Co\u00fbt et maintenance<\/td>\n<td>Plus \u00e9lev\u00e9 ; pi\u00e8ces de pr\u00e9cision<\/td>\n<td>Plus \u00e9lev\u00e9 ; pi\u00e8ces de pr\u00e9cision<\/td>\n<\/tr>\n<tr>\n<td>Applications typiques<\/td>\n<td>Syst\u00e8mes \u00e0 haute pression et \u00e0 contr\u00f4le variable<\/td>\n<td>Syst\u00e8mes \u00e0 usage intensif n\u00e9cessitant une pression extr\u00eame<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>D\u00e9placement variable ou fixe<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Attribut<\/th>\n<th>Variable<\/th>\n<th>Fixe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Efficacit\u00e9 \u00e9nerg\u00e9tique<\/td>\n<td>Plus \u00e9lev\u00e9 sous des charges variables<\/td>\n<td>Bon \u00e0 charge constante<\/td>\n<\/tr>\n<tr>\n<td>Complexit\u00e9<\/td>\n<td>Plus \u00e9lev\u00e9 (contr\u00f4les, compensations)<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Exigence de propret\u00e9<\/td>\n<td>Plus serr\u00e9<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Co\u00fbt initial<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Options de contr\u00f4le<\/td>\n<td>Compensation de la charge, de la pression et du d\u00e9bit<\/td>\n<td>Tout ou rien, d\u00e9bit en fonction de la vitesse<\/td>\n<\/tr>\n<tr>\n<td>Les meilleurs cas d'utilisation<\/td>\n<td>Fluctuation des t\u00e2ches, priorit\u00e9 \u00e0 l'efficacit\u00e9<\/td>\n<td>Simplicit\u00e9, priorit\u00e9 aux co\u00fbts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<section>\n<h2>D\u00e9placement variable ou fixe<\/h2>\n<p><strong>Pour (variable)<\/strong>: Meilleure efficacit\u00e9 \u00e9nerg\u00e9tique en cas de variation de la charge ; prise en charge de la d\u00e9tection de la charge et de la commande proportionnelle.<\/p>\n<p><strong>Cons (variable)<\/strong>: Complexit\u00e9 et co\u00fbt plus \u00e9lev\u00e9s ; exigences plus strictes en mati\u00e8re de propret\u00e9 et d'installation.<\/p>\n<\/section>\n<section>\n<h2>Cartographie des applications<\/h2>\n<ul>\n<li>\u00c9quipement mobile (hayons \u00e9l\u00e9vateurs, plates-formes \u00e0 ciseaux) : Pompes \u00e0 courant continu, compactes <a href=\"\/hydraulic-manifold\/\">collecteurs<\/a>, ports r\u00e9sistants aux vibrations.<\/li>\n<li>Machines industrielles (machines-outils, presses) : contr\u00f4le de pression plus \u00e9lev\u00e9, classe de filtration par sensibilit\u00e9 des composants.<\/li>\n<li>Syst\u00e8mes marins : mat\u00e9riaux r\u00e9sistants \u00e0 la corrosion, connecteurs \u00e9tanches, tuyauterie externe r\u00e9duite au minimum.<\/li>\n<\/ul>\n<\/section>\n<section>\u00a0<\/section>\n<section>\u00a0<\/section>","protected":false},"excerpt":{"rendered":"<p>What Is a Hydraulic Pump? A hydraulic pump converts mechanical energy from a prime mover into hydraulic energy by producing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4519,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","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":"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":"","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-4)","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-4)","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-4)","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-4518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Hydraulic Pumps Work, Types - Hydrath Power<\/title>\n<meta name=\"description\" content=\"Learn why pumps produce flow, not pressure. 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