Rotary valve

A rotary control valve, comprising

• a housing,
• a ring seat mounted in said housing,
• a plug member in the form of a cup shaped shell having a center of curvature,
• an actuating bracket disposed in said housing,
• means for supporting said bracket in said housing so that it can rotate about an axis that is orthogonal and offset with respect to the axis of said ring seat, and
• an adjustable rigid connecting means extending between said plug and said bracket for rigidly connecting said plug in any one of a number of different spaced apart positions with respect to said bracket, said rigid connecting means including a rigid member having ends which are rigidly secured, respectively, to said bracket and to said plug in a manner to permit the adjustment of said plug to that one of said positions at which the rotation of said bracket tilts said plug into and out of fluid tight engagement with said ring seat without bending or deformation of said bracket or said rigid member, and without relative movement between said bracket and said plug, the distance from said shell along said axis of said ring seat to said center of curvature of said shell being greater than the distance from said shell along said axis of said ring seat to the perpendicular projection of said axis of rotation of said bracket onto said axis of said ring seat when said plug has said fluid tight engagement with said ring seat.

A rotary control valve, comprising

• a housing,
• a ring seat mounted in said housing,
• a plug member,
• an actuating bracket disposed in said housing,
• shaft means for supporting said bracket in said housing so that said shaft and said bracket can rotate about an axis that is orthogonal and offset with respect to the axis of said ring seat,
• an adjustable rigid connecting means extending between said plug and said bracket for rigidly connecting said plug in any one of a number of different spaced apart positions with respect to said bracket, said rigid connecting means including a rigid member having ends which are rigidly secured, respectively, to said bracket and to said plug in a manner to permit the adjustment of said plug to that one of said positions at which said rotation of said bracket tilts said plug into and out of fluid tight engagement with said ring seat without bending or deformation of said bracket or said rigid member, and without relative movement between said bracket and said plug, and
• second adjustable means for permitting the adjustment of said plug relative to said ring seat along said axis of said shaft.

A rotary control valve, comprising

• a housing,
• a ring seat mounted in said housing,
• a plug member,
• an actuating bracket disposed in said housing,
• means for supporting said bracket in said housing so that it can rotate about an axis that is orthogonal and offset with respect to the axis of said ring seat, and
• an adjustable rigid connecting means extending between said plug and said bracket for rigidly connecting said plug in any one of a number of different spaced apart positions with respect to said bracket, said rigid connecting means including a rigid threaded member having ends which are rigidly secured, respectively, to said bracket and to said plug, one of said ends being thus secured by means of the threads on said member to permit the adjustment of said plug to that one of said positions at which the rotation of said bracket tilts said plug into and out of fluid tight engagement with said ring seat without bending or deformation of said bracket or said rigid member, and without relative movement between said bracket and said plug.

A rotary control valve, comprising

• a housing,
• a ring seat mounted in said housing,
• a plug member,
• an actuating bracket disposed in said housing,
• means for supporting said bracket in said housing so that it can rotate about an axis that is orthogonal and offset with respect to the axis of said ring seat, and
• an adjustable rigid connecting means extending between said plug and said bracket for rigidly connecting said plug in any one of a number of different spaced apart positions with respect to said bracket, said rigid connecting means including a rigid threaded pin having one end which is rigidly fixed with respect to said plug and having a threaded portion which is adjustably rigidly secured to said bracket by means of the threads of said threaded portion to permit the adjustment of said plug to that one of said positions at which the rotation of said bracket tilts said plug into and out of fluid tight engagement with said ring seat without bending or deformation of said bracket or said rigid pin, and without relative movement between said bracket and said plug.