Centrifugal compressor with a splitter shroud in flow path

Details Centrifugal compressor with a splitter shroud in flow path Centrifugal compressor with a splitter shroud in flow path

1976-10-01

1977-11-29

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416193R, 416196R, F01D 522

Patent

active

040603377

ABSTRACT:
A quick response gasifier spool for an automotive gas turbine engine has a shaft with a turbine wheel connected on one end thereof with a row of turbine blades driven by motive fluid from an engine combustor and further has a low inertia centrifugal compressor impeller with a low mass hub secured to the opposite end of the shaft. The impeller has a plurality of separate, free formed blades each having a root segment integrally formed with the hub; the blades including spaced apart radial tip portions joined by a continuous ring of span splitter elements located on the radial extent of each of the blades to prevent flutter between adjacent free blade radial tips and wherein each element of the continuous ring includes a leading edge and a trailing edge joined by a curved segment located along a flow streamline path between each of the individual blades. The ring and individual free formed blades define an open end back configuration on the centrifugal impeller to reduce fluid shear between the back face of the impeller and its rear closure plate.

REFERENCES:
patent: 1341653 (1920-06-01), Lee
patent: 2609140 (1952-09-01), Jonker
patent: 2625365 (1953-01-01), Moore
patent: 2658455 (1953-11-01), Seinfeld
patent: 3719426 (1973-03-01), Friberg et al.

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