发明名称 |
Stator blading for centrifugal compressors |
摘要 |
<p>Stator blading (10) of return channels for two-dimensional centrifugal stages of a multi-stage centrifugal compressor with improved efficiency, of the type comprising a plurality of blades (20) disposed circumferentially equally spaced on a ring (12) which surrounds a rotor of the compressor, these blades (20) each having a cross-section in the shape of a half-moon formed by a concave area (21) and a convex area (22), these concave (21) and convex (22) areas being connected to one another such as to determine a trailing edge (24) and a leading edge (23) on an inner radius (R); the profile of the concave area (21) of each blade (20) is produced by connecting to one another points which have particular Cartesian co-ordinates relative to a system of axes which are at right-angles to one another, of x-co-ordinates (X) and y-co-ordinates (Y) with an origin (O) located on the axis of rotation.</p> |
申请公布号 |
EP1304486(A2) |
申请公布日期 |
2003.04.23 |
申请号 |
EP20020257224 |
申请日期 |
2002.10.17 |
申请人 |
NUOVO PIGNONE HOLDING S.P.A. |
发明人 |
ROSSI, EUGENIO;PELAGOTTI, ANTONIO |
分类号 |
F04D17/14;F04D29/44;(IPC1-7):F04D29/44 |
主分类号 |
F04D17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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