VANNE DE SELECTION POUR UN SYSTEME DE FREINAGE DE VEHICULE

• Main Author: DESMOND HENRY JAMES REYNOLDS ET PHILIP AUGUSTUS TAFT
• Format: Patent
• Language: French
• Published: 06.05.1983
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRAILERS; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

INVENTION CONCERNANT LE FREINAGE DES VEHICULES.VANNE DE SELECTION POUR SYSTEME DE FREINAGE DE VEHICULE, DANS LEQUEL LES FREINS MONTES SUR LES COTES OPPOSES DU VEHICULE PEUVENT ETRE ACTIONNES SELECTIVEMENT, SOIT ENSEMBLE, SOIT INDEPENDAMMENT. CETTE VANNE COMPREND UN LEVIER D'ACTIONNEMENT 9 SERVANT A DEPLACER UN TIROIR DE VANNE 2 POUR COMMANDER LA COMMUNICATION ENTRE LES ORIFICES D'ENTREE ET DE SORTIE, LE LEVIER ETANT GUIDE PAR UNE FENTE 8 QUI INCLUT DES ENCOCHES DE VERROUILLAGE DANS LESQUELLES LE LEVIER PEUT S'ENGAGER POUR PRESELECTIONNER UN MODE DE DIRECTION PARTICULIER DE FONCTIONNEMENT DU FREIN. LE LEVIER EST AUTOMATIQUEMENT DEGAGE DES ENCOCHES APRES CHAQUE ACTIONNEMENT DU FREIN PAR UN PISTON 15, QUI EST ACTIONNE PAR LE FLUIDE SOUS PRESSION D'UNE CHAMBRE 16 RELIEE A UN ORIFICE D'ENTREE 4.APPLICATION AUX TRACTEURS AGRICOLES ET VEHICULES SEMBLABLES. A selector valve for a vehicle braking system in which brakes mounted on opposite sides of the vehicle can be operated selectively either together or independently, comprises an operating lever (9) for displacing a valve spool (2) to control communication between inlet ports (3,4) and outlet ports (5,6), the lever being guided by a slot (8) which includes latching notches (20) in which the lever is engageable to preselect a particular steering mode of brake operation. The lever is automatically disengaged from the notches after each brake operation by a piston (15) which is actuated by the fluid pressure in a chamber (16) connected to an inlet port (4).