Title:
MULTI-ROW ROTOR BLADE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPS62225702
Kind Code:
A
Abstract:
PURPOSE:To improve intake efficiency and blade strength of multi-row rotor blade by shaping the profile of each blade with straight or stream lines and shaping the profile of each cross section along a radius of each blade to be constant or varied. CONSTITUTION:A multi-row rotor blade 1 is formed as a cylindrical body with a center hole, where a center shaft 5 is inserted, and consists of groups of blades 3, which form rows axially and extend radially, slanting by some angle in each row. Said multi-row rotor blade 1 is contained in a casing 4 or the like and is rotatable by a center shaft 5, in-taking liquid or the like from an intake port 6 side and delivering it to a discharge port 7 side. In this case, the sectional profile of each of said blades 3 of said multi-row rotor blade 1 is formed with straight and/or stream lines, and the profile of each cross section along a radius of each of said blades 3 is formed either constant or varied. Thus, improvement of intake efficiency and that of blade strength are attained.
Inventors:
HAMADA HIROZO
Application Number:
JP6852186A
Publication Date:
October 03, 1987
Filing Date:
March 28, 1986
Export Citation:
Assignee:
MITSUI SEIKI KOGYO KK
International Classes:
F01D5/06; B23C3/18; F01D5/14; (IPC1-7): B23C3/18; F01D5/06; F01D5/14
Domestic Patent References:
| JPS3210477Y1 | ||||
| JPS4727845A |
Attorney, Agent or Firm:
Keinosuke Hayashi (2 outside)