JPS60122598U

JPS60122598U - axial blower

Info

Publication number: JPS60122598U
Application number: JP1052884U
Authority: JP
Inventors: 勝久大蔦
Original assignee: 三菱電機株式会社
Priority date: 1984-01-27
Filing date: 1984-01-27
Publication date: 1985-08-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の軸流送風機を示す正面図、第２図は同側
断面図、第３図はこの考案の一実施例による軸流送風機
を示す正面図、第４図は同常温時の羽根の横断面５図、
第５図は同温度上昇時の羽根の横断面図、第６図、第７
図はこの考案の互に異る他の実施例の羽根をそれぞれ示
す横断面図、第８図は軸流送風機における速度三角形で
ある。なお、図中同一符号は同一または相当部分を示す
。補正　昭５９．５．３１ −　　実用新案登録請求の範“囲を次のように補正する
。Ｏ実用新案登録請求の範囲　　　゛（１）　　羽根の少くとも一部を熱膨張率が違う２種類
の材料を接合して構成す乞と共に上起記２種類の材料の
一部分を互いに固定化し、上記羽根を羽根車のボスに取
付け、外部温産変化に従って上記羽根の迎え角および反
り角が自動的に変化するようにしたことを特徴とする軸
流送風機。（２）　　羽根は２種類の材料からなる前縁部を外側か
ら互いに固定化したものである実用新案登録請求の範囲
第１項記載の軸流送風機。（３）羽根は２種類の材料々）らなる前後方向中央部を
互いに固定化したものである実用新案登録請求め範囲第
１項記載の軸流送風機。Fig. 1 is a front view showing a conventional axial flow blower, Fig. 2 is a sectional view of the same side, Fig. 3 is a front view showing an axial flow blower according to an embodiment of this invention, and Fig. 4 is a front view showing the same at room temperature. 5 diagrams of the cross section of the blade,
Figure 5 is a cross-sectional view of the blade at the same temperature rise, Figures 6 and 7
The figures are cross-sectional views showing blades of different embodiments of this invention, and FIG. 8 is a velocity triangle in an axial blower. Note that the same reference numerals in the figures indicate the same or corresponding parts. Amendment May 31, 1980 - The scope of claims for utility model registration is amended as follows: O Scope of claims for utility model registration ゛(1) At least a portion of the blade is made of two types with different coefficients of thermal expansion. Parts of the two types of materials mentioned above are fixed to each other while the materials are joined together, and the blades are attached to the boss of the impeller, so that the angle of attack and the angle of warp of the blades are automatically adjusted according to external changes. (2) The shaft according to claim 1 of the utility model registration claim, wherein the blades are formed by having front edge portions made of two types of materials fixed to each other from the outside. Flow blower. (3) The axial flow blower according to claim 1, wherein the blades are made of two types of materials and whose central portions in the longitudinal direction are fixed to each other.

Claims

[Scope of utility model registration request]

(1) A small number of blades (parts of which are constructed by joining two types of materials with different coefficients of thermal expansion, and a portion of the two types of materials are fixed to each other, and the blades are attached to the boss of the impeller; An axial flow blower characterized in that the angle of attack and the angle of warp of the blades are automatically changed according to changes in external temperature.

(2) The axial flow blower according to claim 1, wherein the blades are formed by having leading edge portions made of two types of materials fixed to each other from the outside.

(3) The axial flow blower according to claim 1, wherein the blades are made of two types of materials and whose central portions in the longitudinal direction are fixed to each other.