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Économies d'énergie dans les systèmes hydrauliques de travail des flèches des véhicules lourds
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ISBN10: 6208880653
ISBN13: 9786208880651
Publisher: Editions Notre Savoir
Published: Jul 16 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786208880651
Publisher: Editions Notre Savoir
Published: Jul 16 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: French
L'hybridation des véhicules lourds hors route permet de réaliser des économies d'énergie considérables grâce à la réduction de la taille du moteur à combustion interne (ICE) et à l'élimination des pertes à vide. Cet article propose une nouvelle possibilité d'économies d'énergie dans les systèmes hydrauliques de travail situés à l'extrémité des longues flèches des véhicules de travail. Dans les véhicules de chantier hors route traditionnels, le système hydraulique de travail est alimenté par des tuyaux, des flexibles et des vannes à partir d'une pompe hydraulique située près du moteur principal. Une quantité importante d'énergie est perdue dans les longues canalisations et les flexibles, ainsi que dans les vannes d'étranglement. Une nouvelle topologie est introduite pour alimenter la longue flèche en énergie: la puissance d'un actionneur hydraulique est fournie par un convertisseur d'énergie électro-hydraulique intégré (IEHEC) situé à l'extrémité de la flèche. L'énergie électrique est fournie au convertisseur par des câbles électriques dont les pertes sont négligeables par rapport à l'alimentation hydraulique conventionnelle avec de longues conduites. Le convertisseur transforme l'énergie électrique en énergie hydraulique à l'extrémité de la flèche et peut récupérer l'énergie hydraulique excédentaire.
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