Ring valve for turbine flow control
AssigneeDresser-Rand Company
InventorWilliam C. Maier
Life of this patent
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Abstract
A turbine includes a casing having a fluid inlet, a fluid outlet interconnected by a fluid flow path. A valve body is mounted in the casing including a plurality of flow passages within the flow path. Each passage extends from a passage inlet to a passage outlet. A control ring is movably mounted on the valve body adjacent the passage inlets. The control ring includes a plurality of openings formed therein. The openings are variably sized and variably spaced apart so that when the control ring is moved relative to the valve body, the passage inlets are closed and opened in sequence.
Claims20
Apparatus for controlling fluid flow comprising:
- a stationary valve body including a plurality of flow passages, each passage extending from a passage inlet to a passage outlet;
- and
- a control ring movably mounted on the valve body adjacent to and radially outwardly from the passage inlets, the control ring including a plurality of openings formed therein, the openings being variably sized so that when the ring is moved relative to the valve body, the passage inlets are closed and opened in sequence.
A turbine comprising:
- a casing having a fluid inlet, a fluid outlet and a fluid flow path therebetween;
- a valve body mounted in the casing including a plurality of flow passages within the flow path, each passage extending from a passage inlet to a passage outlet;
- and
- a control ring movably mounted on the valve body adjacent to and radially outwardly from the passage inlets, the control ring including a plurality of openings formed therein, the openings being variably sized so that when the control ring is moved relative to the valve body, the passage inlets are closed and opened in sequence.
Apparatus for turbine flow control comprising:
- a casing having a fluid inlet, a fluid outlet and a fluid flow path therebetween;
- a valve body mounted in the casing including a plurality of adjacent pairs of diametrically opposed flow passages within the flow path, each passage extending from a passage inlet to a passage outlet;
- and
- a control ring movably mounted on the valve body adjacent to and radially outwardly from the passage inlets, the control ring including a plurality of adjacent pairs of diametrically opposed openings formed therein, each pair of openings being of a different size from each other pair of openings and also being variably spaced from each other pair of openings, so that when the control ring is moved relative to the valve body, each pair of passage inlets are closed and opened in sequence.
Dependencies are inferred from the claim text.