Impeller with alternating primary and secondary vanes of...

Details Impeller with alternating primary and secondary vanes of... Impeller with alternating primary and secondary vanes of...

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 17/00 (2006.01)

Patent

CA 2120977

The present invention relates to the design of impellers for radial, centrifugal or mixed flow liquid and gas pumps and turbines. The impeller features a number of primary and secondary vanes (or blades). The primary vanes extend from the eye of the impeller to the tip diameter or periphery of the impeller. The secondary vanes extend from a higher radius outside the eye of the impeller to the tip diameter or periphery of the impeller. The primary and secondary vanes alternate. The role of the secondary vanes is to control the expansion and the slip between the primary vanes particularly towards the periphery of the impeller.

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