Vehicular brake system

B - Operations – Transporting – 60 – T

Patent

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Details

B60T 7/04 (2006.01) B60T 8/40 (2006.01)

Patent

CA 2615284

In a vehicular brake system, an input piston (12) and a pressure piston (13) are coaxially and axially movably supported in a cylinder (ll), and a brake pedal (14) is coupled to the input piston (12). Pressure chambers (R1, R2) formed on the axially opposite sides of the input piston (12) communicate with each other via a communication passage (21), A control oil pressure can be supplied to a first supply port (29) of the communication passage (21), and a reaction-force oil pressure can be supplied to a second supply port (34) of a reaction-force chamber (R4) of the input piston (12), while braking oil pressures can be delivered from delivery ports (41, 43) of the respective pressure chambers (R1, R3).

L'invention concerne des organes de freinage comportant un piston d'entrée (12) et un piston de pression (13) pouvant être déplacés de façon coaxiale et axiale supportés dans un cylindre (11) et une pédale de frein (14) couplée au piston d'entrée (12). Les chambres sous pression (R1, R2) formées sur les côtés axialement opposés du piston d'entrée (12) communiquent entre elles via un passage de communication (21). Une pression d'huile de commande peut être alimentée dans un premier orifice d'alimentation (29) du passage de communication (21), et la pression de l'huile à force de réaction peut être alimentée dans un second orifice d'alimentation (34) de la chambre à force de réaction (R4) du piston d'entrée (12), lors du freinage des pressions d'huile pouvant être délivrées par les ports d'administration (41, 43) des chambres sous pression respectives (R1, R3).

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