F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 39/14 (2006.01) F16H 61/66 (2006.01)
Patent
CA 2627656
To provide a clutch valve spool having configuration the manufacture of which is simple. A hydrostatic continuously variable transmission is configured by connecting a swash plate type plunger hydraulic pump P and a swash plate type plunger hydraulic motor M via a hydraulic closed circuit and continuous shift control is executed by variably controlling an inclined angle of the swash plate of the hydraulic motor. A valve spool movably arranged in a spool hole axially extended in a shaft that supports the hydraulic pump and the hydraulic motor is configured by coupling a first spool member provided with a guide land fitted in a guide member and a second spool member provided with a central land and a left land and provided with a valve that connects and cuts off a clutch oil passage on the high pressure side and a clutch oil passage on the low pressure side according to axial movement by a coupling pin.
La présente invention a trait à un tiroir d'embrayage dont la configuration est simple. On configure une transmission hydrostatique variable de façon continue en reliant une pompe hydraulique à piston à plateau incliné fixe P et un moteur hydraulique à piston à plateau incliné fixe M par un circuit hydraulique fermé. On commande le changement de vitesse en contrôlant de façon variable un angle d'inclinaison du plateau incliné fixe du moteur hydraulique. Le tiroir, disposé de façon mobile dans un orifice qui s'allonge de façon axiale dans un arbre soutenant la pompe hydraulique et le moteur hydraulique, comprend un premier élément de tiroir muni d'une portée de guide logée dans un élément guide et un second élément de tiroir muni d'une portée centrale et d'une portée gauche ainsi que d'une soupape qui ouvre et ferme le passage d'huile de l'embrayage du côté haute pression et le passage d'huile de l'embrayage du côté basse pression, selon le mouvement axial, grâce à une cheville d'accouplement.
Nakano Kenichi
Yoshida Yoshihiro
Dennison Associates
Honda Motor Co. Ltd.
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