Propeller fan and outdoor unit for air-conditioning apparatus

Propeller fan and outdoor unit for air-conditioning apparatus

A propeller fan includes a shaft part and a blade. The blade includes a basal part connected to the shaft part, a first part positioned either at the basal part or closer to an outer circumference of the propeller fan than is the basal part and away from the rotation axis by a distance r1, a second...

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Hauptverfasser: Korenaga, Kazunori, Nakashima, Seiji, Yamamoto, Katsuyuki
Format: Patent
Sprache: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 Korenaga, Kazunori
Nakashima, Seiji
Yamamoto, Katsuyuki
description A propeller fan includes a shaft part and a blade. The blade includes a basal part connected to the shaft part, a first part positioned either at the basal part or closer to an outer circumference of the propeller fan than is the basal part and away from the rotation axis by a distance r1, a second part positioned away from the rotation axis by a distance r2 that is longer than r1, a third part positioned away from the rotation axis by a distance r3 that is longer than or equal to r2, and a tip part positioned at an outer circumferential end of the blade and away from the rotation axis by a distance rt that is longer than r3. A relationship expressed as (θ2−θ1)/(r2−r1)>(θt−θ3)/(rt−r3)≥0 is satisfied.
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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 Propeller fan and outdoor unit for air-conditioning apparatus
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