Increased flow, split venturi valve system

A method of providing improved flow from a valve using a split venturi comprising:

• a. flowing a fluid through a flow path with a pressure and velocity along a central axis wherein said flow path has a flow path periphery;
• b. gradually reducing said pressure of said fluid while increasing said velocity of said fluid through a first portion of a split venturi wherein said first portion is non-axisymmetric relative to said central axis;
• c. gradually increasing said pressure of said fluid while decreasing said velocity of said fluid through a second portion of said split venturi wherein said second portion is non-axisymmetric relative to said central axis;
• d. rotating at least one of said portions of said split venturi to at least a partially closed position, wherein said at least one of said portions is contained within a venturi sleeve periphery which does not extend substantially beyond said flow path periphery;
• e. at least partially restricting said fluid from flowing through said valve;
• f. rotating at least one of said portions of said split venturi to at least a partially open position;
• g. allowing said flowing of said fluid.

A method of providing improved flow from a valve using a split venturi comprising:

• a. establishing a flow through a flow path in at least a portion of an axially-rotated valve having a central axis wherein said flow path has a flow path periphery;
• b. controlling said flow between a first and second portion of a split venturi wherein said portions are fluidicly connected to said axially-rotated valve;
• c. axially rotating at least one of said portions of said split venturi to a rotated position about a longitudinal axis substantially parallel to said central axis to at least a partially closed position;
• d. at least partially restricting said flow;
• e. axially rotating said rotated portion of said split venturi about said longitudinal axis to at least a partially open position, wherein said rotated portion is contained within a venturi sleeve periphery which does not extend substantially beyond said flow path periphery;
• f. continuing said flow through said axially-rotated valve;
• wherein axially rotating said portions of said split venturi comprises axially rotating said portion with an axial rotator outside of said flow without substantial interference with flow efficiency.

A method of providing improved flow from a valve using a split venturi comprising:

• a. flowing a fluid with a pressure and velocity into an axially-rotated valve having a central axis in a flow path having a flow path periphery;
• b. gradually reducing said pressure of said fluid while increasing said velocity of said fluid in a first portion of a split venturi;
• c. gradually increasing said pressure of said fluid while decreasing said velocity of said fluid in a second portion of a split venturi comprising avoiding flow separation of said fluid in said second portion;
• d. axially rotating at least one of said portions of said split venturi along a longitudinal axis substantially parallel to said central axis to at least a partially closed position, wherein said at least one of said portions is contained within a venturi sleeve periphery which does not extend substantially beyond said flow path periphery;
• e. at least partially restricting said fluid from flowing through said axially-rotated valve;
• f. axially rotating said rotated portion along said longitudinal axis to at least a partially open position;
• g. allowing said flowing of said fluid.