| 摘要 |
<p>PURPOSE:To facilitate processing, to provide a wide operation range, and to provide an increased efficiency by a method wherein width on the inlet side of a diffuser is decreased to a value lower than that on the outlet side, a static blade is integrally formed, the end face of the static blade forms a free end, and height on the inlet side of the static blade is decreased to a value lower than that on the outlet side. CONSTITUTION:A flow 2 compressed by an impeller 1 flows in a diffuser comprising a side plate 9 and a core plate 10. A static blade 4 is arranged at the diffuser, the static blade 4 is formed integrally from the plane of either a side plate 9 or a core plate 10 vertical to the rotary shaft of the impeller 1. The blade angle of the outlet side of the static impeller 4 with a radial direction is increased to a value higher than that of the inlet side of the static blade 4 with a radial direction and the blade angle on the outlet side is caused to approach radially of the inlet side. The height h2 on the outlet side of the static blade 4 is increased to a value higher than a height h1 on the inlet side.</p> |
