Rotary valve

Claim 1

A CONTINUOUSLY ROTATABLE HYDRAULIC VALVE FOR CONTROLLING FEEDING AND RETURN OF HYDRAULIC FLUID TO AND FROM A PLURALITY OF HYDRAULIC MOTORS OF THE SINGLEACTING TYPE, IN ACCORDANCE WITH A REPEATING CYCLE AND AT PREDETERMINED TIME INTERVALS, SAID VALVE COMPRISING A BODY HAVING AN AXIAL BORE, A ROTOR DISPOSED WITHIN SAID BORE FOR CONTINUOUS ROTATION WITH RESPECT TO SAID BODY, MEANS EXTERIOR TO SAID BODY, CONNECTED TO SAID ROTOR, FOR CONTINUOUSLY ROTATING SAID ROTOR, SAID BODY HAVING AN INLET AND AN OUTLET PORT OPENING IN SAID BORE AND LONGITUDINAL SPACED WITH RESPECT TO SAID BODY, SAID BODY HAVING A SERIES OF ANGULARLY SPACED MOTOR PORTS, EACH ADAPTED TO BE CONNECTED TO A SINGLE-ACTING HYDRAULIC MOTOR, EACH MOTOR PORT HAVING A FEEDING AND A RETURN BRANCH MADE IN SAID BODY AND OPENING WITHIN SAID BORE IN TWO LONGITUDINALLY SPACED POINTS AND IN A PLANE PASSING THROUGH THE LONG AXIS OF SAID BODY, SAID ROTOR HAVING A LONGITUDINAL BORE AND A PARTITION DIVIDING SAID BORE INTO A FEEDING SECTION AND A RETURN SECTION, BOTH SECTIONS EACH ASSOCIATED WITH AN ANNULAR GROOVE FORMED AT THE EXTERIOR SURFACE OF SAID ROTOR AND DISPOSED OPPOSITE SAID INLET AND OUTLET PORTS, RESPECTIVELY, EACH SECTION HAVING A HOLE MAKING COMMUNICATION BETWEEN SAID SECTIONS AND THEIR RESPECTIVE ANNULAR GROOVES, EACH SECTION FURTHER HAVING AN ELONGATED SLOT DISPOSED OPPOSITE THE OPENINGS OF SAID BRANCHES WITHIN SAID BORE, RESPECTIVELY, EACH SLOT HAVING A SUBSTANTIALLY INCLUDED ANGLE, SAID SLOTS BEING DIAMETRICALLY OPPOSED WITH RESPECT TO THE LONG AXIS OF SAID ROTOR, WHEREBY DURING ROTATION OF SAID ROTOR HYDRAULIC FLUID UNDER PRESSURE ENTERING SAID INLET PORT FEEDS EACH OF SAID HYDRAULIC SINGLE-ACTING MOTORS CONNECTED TO SAID MOTOR PORTS DURING THE TIME THE SLOT OF SAID FEEDING SECTION OF SAID ROTOR IS IN COMMUNICATION WITH SAID FEEDING BRANCHES, AND HYDRAULIC FLUID IS RETURNED FROM SAID MOTORS THROUGH EACH OF SAID RETURN BRANCHES DURING THE TIME EACH RETURN SLOT OF SAID RETURN SECTION OF THE ROTOR IS DISPOSED OPPOSITE SAID RETURN BRANCHES, SAID HYDRAULIC MOTORS BEING OPERATED SUCCESSIVELY AT TIME INTERVALS DETERMINED BY THE SPEED OF ROTATION OF SAID ROTOR AND BY THE ANGLE SEPARATING THE BRANCH OPENINGS IN SAID VALVE BODY.