REGULATEUR DE LA VITESSE DE ROTATION D'UN OUTIL MOTORISE PNEUMATIQUE

• Main Author: WILLIAM KEITH WALLACE ET DAVID ANDREW GIARDINO
• Format: Patent
• Language: French
• Published: 20.03.1981
• Subjects: BLASTING; CONTROLLING; DRESSING OR CONDITIONING OF ABRADING SURFACES; ENGINE PLANTS IN GENERAL; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PERFORMING OPERATIONS; PHYSICS; POLISHING; REGULATING; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; STEAM ENGINES; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING; WEAPONS

REGULATEUR DE LA VITESSE DE ROTATION D'UN OUTIL QUE FAIT TOURNER UN FLUIDE SOUS PRESSION.AU ROTOR 26 FAISANT TOURNER L'OUTIL EST ASSUJETTI UN SUPPORT ANNULAIRE 24, PERCE DE TROUS ESPACES 28 PAR LESQUELS PASSE LE FLUIDE MOTEUR DE CE ROTOR, D'UN OBTURATEUR PIVOTANT 30 EN FORME DE LEVIER INCURVE RELIE PAR AILLEURS A UN RESSORT 40 DESTINE A RESISTER A LA FORCE CENTRIFUGE QUI TEND A FAIRE PIVOTER CE LEVIER EN LUI FAISANT OBTURER PROGRESSIVEMENT ET PARTIELLEMENT LES TROUS 28.APPLICATION NOTAMMENT AUX INSTRUMENTS MANIPULABLES MOTORISES ACTIONNES PAR UN FLUIDE SOUS PRESSION. A pneumatic tool governor having a body rotatable with the rotor of the tool, the body being provided with holes for passage of motive fluid to the motor of the tool, and a centrifugally responsive valve element pivotally mounted upon the governor body so that the fluid conducting holes are progressively blocked as tool rotary spped increases to the point where rotary speed attains a predetermined value.