Blade for low-noise industrial axial fan, industrial axial fan and method for producing blade for industrial axial fan

Blade for low-noise industrial axial fan, industrial axial fan and method for producing blade for industrial axial fan

A blade for an industrial axial fan, comprising: an airfoil (10) extending along a blade axis (A) and having a leading edge (11), a trailing edge (12), a root side (13), a tip side (14); and a rod (7) having a first end connected to the airfoil (10) and a second end protruding from the airfoil (10)...

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Hauptverfasser: MANASSA ALBERTO, GALLINA CARLO, TORNO EMANUELE
Format: Patent
Sprache:chi ; eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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creator MANASSA ALBERTO
GALLINA CARLO
TORNO EMANUELE
description A blade for an industrial axial fan, comprising: an airfoil (10) extending along a blade axis (A) and having a leading edge (11), a trailing edge (12), a root side (13), a tip side (14); and a rod (7) having a first end connected to the airfoil (10) and a second end protruding from the airfoil (10) for coupling to the hub (4). The root side (13) has a rounded profile with a concave extension (13a) adjacent to the front edge (11) and a convex extension (13b) adjacent to the rear edge (12). The root end (Ha) of the leading edge (11) protrudes with respect to the insertion point (20) in a direction parallel to the blade axis (A) towards the second end of the stem (7). The airfoil (10) forms a projection (22) which extends further towards the second end of the stem (7) in a direction parallel to the blade axis (A) than the root end (11a) of the leading edge (11). The airfoil (10) is formed by extrusion or pultrusion and the leading edge (11) is linear and parallel to the blade axis (A). 一种用于工业轴流风扇的叶片，包括：翼型部(10)，沿
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The root side (13) has a rounded profile with a concave extension (13a) adjacent to the front edge (11) and a convex extension (13b) adjacent to the rear edge (12). The root end (Ha) of the leading edge (11) protrudes with respect to the insertion point (20) in a direction parallel to the blade axis (A) towards the second end of the stem (7). The airfoil (10) forms a projection (22) which extends further towards the second end of the stem (7) in a direction parallel to the blade axis (A) than the root end (11a) of the leading edge (11). 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The root side (13) has a rounded profile with a concave extension (13a) adjacent to the front edge (11) and a convex extension (13b) adjacent to the rear edge (12). The root end (Ha) of the leading edge (11) protrudes with respect to the insertion point (20) in a direction parallel to the blade axis (A) towards the second end of the stem (7). The airfoil (10) forms a projection (22) which extends further towards the second end of the stem (7) in a direction parallel to the blade axis (A) than the root end (11a) of the leading edge (11). The airfoil (10) is formed by extrusion or pultrusion and the leading edge (11) is linear and parallel to the blade axis (A). 一种用于工业轴流风扇的叶片，包括：翼型部(10)，沿</abstract><oa>free_for_read</oa></addata></record>
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subjects BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
title Blade for low-noise industrial axial fan, industrial axial fan and method for producing blade for industrial axial fan
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