Multi-stage centrifugal compressor

Details Multi-stage centrifugal compressor Multi-stage centrifugal compressor

1981-11-24

1984-01-31

Coe, Philip R.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

4151996, F01D 106

Patent

active

044287151

ABSTRACT:
A centrifugal air compressor (11) has an annular air flow path (14) of progressively increasing diameter and progressively diminishing cross-sectional area in which a plurality of internal compression-diffusion stages (30) are provided. The stages of progressively greater diameter are defined by rows (29) of impeller (12) blades which are alternated with rows (32) of stator blades along the air flow path (14) and each such blade row (29, 32) has a diffusion factor below about 0.55 and a de Haller number above about 0.70. The multi-staged construction combines higher isentropic efficiency with reduced size and may be used as a component of a gas turbine engine (18) or a turbocharger (57) or for other purposes requiring gas compression.

REFERENCES:
patent: 1488582 (1924-04-01), Allen
patent: 2350839 (1944-06-01), Szydlowski
Axial Flow Compressors, Fluid Mechanics and Thermodynamics, Horlock, J. H., R. E. Krieger Publishing Co., Huntington, N.Y., 1973, pp. 73-75.

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