Patent ID: 6779557
Filing Date: 2004-08-24
Classification: F16K,Y10T

Abstract:
A multi-port rotary disc valve comprising a stator with a plurality of fluid flow ports and a rotary distributor with a plurality of channels arranged in a channel pattern, said channels being adapted to connect said ports between them and/or to the environment in a plurality of predetermined combinations, each combination being associated with an angular position of the rotary distributor with respect to the stator, a succession of such combinations performed during a full or partial unidirectional turn of said rotary distributor constituting a predetermined sequence; said rotary distributor comprising a rotor and a mask mounted movably thereon, the rotor and the mask accommodating said plurality of channels, and said mask being adapted to change said channel pattern by changing its position with respect to said rotor, thereby enabling said disc valve to perform different predetermined sequences corresponding to different positions of the mask.