AXIAL-FLOW FAN, METHOD FOR MODIFYING BLADE FOR COMPRESSOR AND TURBINE, AND BLADE OBTAINED ACCORDING TO SAID DESIGN

WIPO Patent Application WO/2022/118500

A1

Provided is a blade capable of optimizing outflow angle in substantially the entirety of the hub region and the tip region, particularly in the blade-end-side hub region and the blade-end-side tip region.　The blade is composed of a base blade part, a negative-pressure-side protuberance provided on a negative-pressure surface near a trailing edge in the blade-end-side tip region and/or blade-end-side hub region of the base blade part, and a positive-pressure-side protuberance provided on a positive-pressure surface near the trailing edge in the midspan-side tip region and/or midspan-side hub region. The blade shape at the span-direction positions where the protuberances are provided is such that the trailing-edge curve of the base blade shape is changed to a corrected trailing-edge curve. The corrected trailing-edge curve is constituted of a portion nearer to the positive-pressure side or the negative-pressure side than the trailing edge in the trailing-edge curve of the base blade shape at the span-direction positions where the protuberances are provided, and a protuberance curve. The protuberance curve is constituted of a concave leading-edge curve and a convex trailing-edge curve.

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JP2014177938	COMPONENT WITH MICRO COOLING LASER DEPOSITED MATERIAL LAYER AND METHOD OF MANUFACTURING THE SAME
JPS63117104	MOISTURE SEPARATING DEVICE FOR STEAM TURBINE

OKAMURA YASUHIRO (JP)
HAMABE MASAAKI (JP)
NISHII DAISUKE (JP)
FURUKAWA JUO (JP)

PCT/JP2021/029885

June 09, 2022

August 16, 2021

Click for automatic bibliography generation  

IHI CORP (JP)

F01D9/02; F01D5/14; F04D29/38

WO2019064761A1	2019-04-04
WO2019064761A1	2019-04-04

JP2012505340A	2012-03-01
US20110206527A1	2011-08-25
US20130129515A1	2013-05-23

NAGATO, Kanji (JP)

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