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OwnerPaulo Giacomo MILANI, Luis Antonio Waack BAMBACE +1inventors
InventorsPaulo Giacomo MILANI, Luis Antonio Waack BAMBACE, Ulisses Tadeu Vieira GUEDES
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The invention is characterized by a rotary external housing and the attachment of the movable blades to the inner side of said housing, and by the attachment of the fixed (or static) blades to a shaft or other static central element, irrespective of whether compression or expansion occurs in one or more stages. The proposed attachment eliminates the radial gap in the region that transfers maximum energy to the fluid, thereby drastically reducing the problems due to stalling at the boundary layer. In this way, there is no drop in the mechanical performance of small axial turbines and compressors with a less favorable ratio of radial gap to housing diameter, an aspect that has prevented more generalized use thereof. The fixed blades, by not transferring energy to the fluid and decelerating the rotation thereof, encounter fewer stalling problems than movable blades.
1) AXIAL TURBOMACHINES WITH ROTARY HOUSING AND FIXED CENTRAL ELEMENT characterized by moving blades (2) of the turbine or compressor attached to a spinning housing (6) as a way to eliminate the clearances of the moving blades (2) in the zones of larger diameter of axial turbines and compressors.
10) Systems of rib joined bristles for axial turbo-machines, characterized by the bristles joined by curved membranes (22) thin enough to cause less movement restrictions than the bristles, enabling freedom for the bristles to move almost as if they were loose, at the same time the membranes blocks the most of the flow between the bristles.
Dependencies are inferred from the claim text.