FIELD: mechanical engineering.
SUBSTANCE: invention relates to design of blades of axial-flow fans which can be used for cooling automobile engines. Proposed blade of axial-flow fan contains convex leading edge, concave trailing edge, root part and upper edge. Angles of inclination of straight lines, connecting edges of root part, middle part and upper edge, to plane of rotation of blade are 2.5:1.6:1. Use of proposed invention in design of axial-flow fan increases its capacity and efficiency of delivering of air mass and reduces intensity of vorticity and noise level.
EFFECT: increased capacity, improved efficiency of blowing.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BLADE OF AXIAL-FLOW FAN | 2003 |
|
RU2274770C2 |
| AXIAL BLOWER BLADE | 2001 |
|
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| AXIAL FAN | 2004 |
|
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| METHOD OF MANUFACTURING SLOTLESS ARMATURE OF ELECTRIC MACHINE | 0 |
|
SU1251238A1 |
| BLADE OF COOLING STACK FAN | 2009 |
|
RU2407924C1 |
