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Title:
TURBO MACHINE HAVING MIXED-FLOW STAGE, AND ITS METHOD
Document Type and Number:
Japanese Patent JP2012052541
Kind Code:
A
Abstract:

To provide a turbo machine having a mixed-flow stage, and its method.

There are provided a method for imparting energy to a multi-phase fluid, and the turbo machine. The turbo machine includes a casing having an inlet and an outlet, an axial stage portion including at least one axial stage, a mixed-flow stage portion including at least one mixed-flow stage which is fluid-connected to the axial stage portion, and a centrifugal stage portion including at least one centrifugal stage which is fluid-connected to the mixed-flow stage portion. The axial stage is defined by an angle having a value between 0° to 5° between an axial impeller outlet flow and an axial line parallel with a rotating axial line of a shaft, the mixed-flow stage is defined by an angle having a value between 5° to 80°, and the centrifugal stage is defined by an angle having a value between 80° to 90°.


Inventors:
Bergamini, Lorenzo
Michelassi, Vittorio
Application Number:
JP2011000185514
Publication Date:
March 15, 2012
Filing Date:
August 29, 2011
Export Citation:
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Assignee:
NUOVO PIGNONE SPA
International Classes:
F04D1/06; F04D3/00; F04D7/02; F04D11/00; F04D29/18; F04D29/22
Foreign References:
US4224010A1980-09-23
US5961282A1999-10-05
US7150600B12006-12-19
US5961282A1999-10-05
US6210126B12001-04-03
US4224010A1980-09-23
Attorney, Agent or Firm:
荒川 聡志
小倉 博
黒川 俊久