EP 3043077 B1 20191127 - PROPELLER FAN, AIR-BLOWING DEVICE, AND OUTDOOR UNIT
Title (en)
PROPELLER FAN, AIR-BLOWING DEVICE, AND OUTDOOR UNIT
Title (de)
PROPELLERLÜFTER, LUFTBLASVORRICHTUNG UND AUSSENEINHEIT
Title (fr)
VENTILATEUR À HÉLICE, DISPOSITIF DE SOUFFLAGE D'AIR, ET UNITÉ EXTÉRIEURE
Publication
Application
Priority
- JP 2013073505 W 20130902
- JP 2014072416 W 20140827
Abstract (en)
[origin: EP3043077A1] A propeller fan (1, 201, 301, 401) includes: a boss (3); and a plurality of blades (5) arranged on an outer periphery of the boss (3). A protruding portion (17, 217, 317, 417) is formed on a suction surface (15) of at least one of the blades (5). The protruding portion (17, 217, 317, 417) extends in a rotating direction at a position separated away from an outer peripheral edge of the blade. An inclination of a radially-inner skirt portion (17a) of the protruding portion (17, 217, 317, 417) is gentler than an inclination of a radially-outer skirt portion (17b) of the protruding portion (17, 217, 317, 417). A blowing flow is uniformized in a radial direction, thereby being capable of suppressing a locally-high velocity air stream.
IPC 8 full level
F04D 29/38 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP)
F04D 29/384 (2013.01); F04D 29/681 (2013.01); F05D 2240/306 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3043077 A1 20160713; EP 3043077 A4 20170419; EP 3043077 B1 20191127; JP 6095025 B2 20170315; JP WO2015030048 A1 20170302; WO 2015029245 A1 20150305; WO 2015030048 A1 20150305
DOCDB simple family (application)
EP 14840958 A 20140827; JP 2013073505 W 20130902; JP 2014072416 W 20140827; JP 2015525665 A 20140827