Brake control arrangement for motor vehicle, has rapid rebalancing valve arranged inside rigid envelope and allowing vacuum chamber to directly communicate with work chamber without passing through outer pneumatic circuit
The arrangement has a pneumatic servomotor comprising a control piston coupled with a brake pedal, where the piston is mounted to slide between rear rest and front positions. A hydraulic or pneumatic pressure regulator is arranged outside a rigid envelope and includes a balancing valve allowing a va...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | The arrangement has a pneumatic servomotor comprising a control piston coupled with a brake pedal, where the piston is mounted to slide between rear rest and front positions. A hydraulic or pneumatic pressure regulator is arranged outside a rigid envelope and includes a balancing valve allowing a vacuum chamber (24) to communicate with a work chamber (26) through an outer pneumatic circuit. The servomotor includes a rapid rebalancing valve (120) arranged inside the envelope and allows the vacuum chamber to directly communicate with the work chamber without passing through the circuit.
L'invention concerne un agencement (10) de commande de freinage pour un véhicule automobile comportant un servomoteur (14) équipé : - d'un régulateur de pression (66) dans une chambre de travail (26) du servomoteur qui est déporté à l'extérieur de l'enveloppe (20) du servomoteur (14) ; et - d'une valve de rééquilibrage rapide (120) qui est agencée à l'intérieur de l'enveloppe (20) et qui permet de faire communiquer directement la chambre avant (24) avec la chambre arrière (26) sans passer par le circuit pneumatique extérieur (67). |
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