Fluid flow machine with blade row-internal fluid return arrangement
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorVolker Guemmer
Life of this patent
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Abstract
A fluid flow machine has a flow path (2) which is confined by at least one wall, on which at least one row of blades (6, 7) is fixedly mounted. At least one fluid offtake opening (9) and at least one fluid supply opening (10), which are connected by at least one fluid return path (11), are arranged in the wall in an area of a blade row (6, 7), with a circumferential extension of the fluid supply opening (10) being less than a distance between two adjacent blades.
Claims20
A fluid flow machine, comprising:
- at least one wall;
- a main flow path confined by the at least one wall;
- at least one row of blades fixedly mounted on the wall;
- at least one fluid offtake opening;
- at least one fluid supply opening;
- at least one fluid return path connecting the at least one fluid offtake opening and the at least one fluid supply opening, the at least one fluid offtake opening and the at least one fluid supply opening being positioned in the wall in an area of the at least one row of blades, with a circumferential extension of the fluid supply opening being less than a distance between two adjacent blades.
The fluid flow machine of Claim, wherein the at least one fluid offtake opening includes a curved ram inlet protruding into the main flow path.
Dependencies are inferred from the claim text.