IMPELLER, ROTARY MACHINE WITH IMPELLER, AND METHOD FOR MANUFACTURING IMPELLER

Title:

IMPELLER, ROTARY MACHINE WITH IMPELLER, AND METHOD FOR MANUFACTURING IMPELLER

Document Type and Number:

WIPO Patent Application WO/2013/031038

Kind Code:

A1

Abstract:

This impeller (1) is provided with: blades (6) which are arranged in the circumferential direction so as to extend from the inner peripheral side toward the outer peripheral side in the radial direction; a disk (7) which is provided on the second side of the blades (6) in the axial direction, to which the blades (6) are attached, and which is attached to a rotating shaft (S); and a shroud (8) which is provided on the first side of the blades (6) in the axial direction and to which the blades (6) are attached. Flow paths (3) are formed by the blades (6), the disk (7), and the shroud (8). The impeller (1) is also provided with: a first member (4) on which the blades (6), the shroud (8), and the portion (7a) of the disc (7) which is located on the second side in the axial direction are integrally formed; and a second member (5) which forms the portion (7b) of the disk (7) which is located on the first side in the axial direction.

Inventors:

KAWANISHI DAISUKE (JP)
NAKANIWA AKIHIRO (JP)

Application Number:

PCT/JP2011/078790

Publication Date:

March 07, 2013

Filing Date:

December 13, 2011

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
KAWANISHI DAISUKE (JP)
NAKANIWA AKIHIRO (JP)

International Classes:

F04D29/28; F04D29/22

Foreign References:

JP2004036444A	2004-02-05
JP2010230012A	2010-10-14
JP2010285919A	2010-12-24

Other References: