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Title: Transonic airfoil and axial flow rotary machine

Abstract

Sectional profiles close to a tip 124 and a part between a midportion 125 and a hub 123 are shifted to the upstream of an operating fluid flow in a sweep direction. Accordingly, an S shape is formed in which the tip 124 and the part between the midportion 125 and the hub 123 protrude. As a result, it is possible reduce various losses due to shook, waves, thereby forming a transonic airfoil having an excellent aerodynamic characteristic.

Inventors:
;
Issue Date:
Research Org.:
Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213472
Patent Number(s):
8133012
Application Number:
12/447,951
Assignee:
Mitsubishi Heavy Industries, Ltd. (Tokyo, JP)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Sep 11
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Nagai, Naonori, and Iwatani, Junji. Transonic airfoil and axial flow rotary machine. United States: N. p., 2015. Web.
Nagai, Naonori, & Iwatani, Junji. Transonic airfoil and axial flow rotary machine. United States.
Nagai, Naonori, and Iwatani, Junji. Tue . "Transonic airfoil and axial flow rotary machine". United States. https://www.osti.gov/servlets/purl/1213472.
@article{osti_1213472,
title = {Transonic airfoil and axial flow rotary machine},
author = {Nagai, Naonori and Iwatani, Junji},
abstractNote = {Sectional profiles close to a tip 124 and a part between a midportion 125 and a hub 123 are shifted to the upstream of an operating fluid flow in a sweep direction. Accordingly, an S shape is formed in which the tip 124 and the part between the midportion 125 and the hub 123 protrude. As a result, it is possible reduce various losses due to shook, waves, thereby forming a transonic airfoil having an excellent aerodynamic characteristic.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

Works referenced in this record:

Compressor outlet guide vane support
patent, October 1993


Swept turbomachinery blade
patent, July 1997


Swept fan blade
patent, June 2000


Swept barrel airfoil
patent, December 2001


Doubled bowed compressor airfoil
patent, December 2001


    Works referencing / citing this record:

    Transonic airfoil and axial flow rotary machine
    patent, March 2012


    Transonic airfoil and axial flow rotary machine
    patent, March 2012


    Transonic airfoil and axial flow rotary machine
    patent, March 2012


    Transonic airfoil and axial flow rotary machine
    patent, March 2012