Turbomachinery having variable angle flow guiding device

Details Turbomachinery having variable angle flow guiding device Turbomachinery having variable angle flow guiding device

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/46 (2006.01) F01D 17/16 (2006.01) F04D 27/02 (2006.01)

Patent

CA 2166249

A turbomachinery having variable angle diffuser vanes is demonstrated with the use of a centrifugal pump. The performance of a diffuser is enhanced greatly by the use of adjustable angle diffuser vanes which can be set to a wide range of vane angles to provide a variable size of an opening between adjacent vanes. The demonstrated pumping system has a significantly wider operating range than that in conventional pumping systems over a wide flow rate, and is particularly effective in the low flow rate range in which known diffuser vane arrangements would lead to surge in the entire system and other serious operational problems. A number of concrete examples and formulae are given to demonstrate the computational methods used to select a vane angle for a given set of operating conditions of the turbomachinery.

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