| 摘要 |
A pulse width modulated fluidic valve 3005 includes a cylinder (352) having an elongate bore, a length, and first (344) and second (346) ports which extend from outside the cylinder (352) into the bore. A rotatable spool (302) is carried in the bore and movable in a direction of the length of cylinder (352). The spool (302) has a variable blocking feature (306) which blocks passage of fluid between the first (344) and second (346) ports as a function of angular position relative to the first (344) and second (346) ports and as a function of linear position along the length of the cylinder (352).
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