TURBOFAN AND AIR-CONDITIONING DEVICE

In the present invention, a connection part (7) between a main blade (5) and a blade cover (6) is formed in a region (positive-pressure surface 12), the plane of which is parallel to a direction of airflow on the positive-pressure surface (12) of a blade (2). Consequently, because air sucked in from...

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Main Authors ISOMURA, Kazuki, KURIHARA, Makoto
Format Patent
LanguageEnglish
French
Japanese
Published 27.10.2016
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Abstract In the present invention, a connection part (7) between a main blade (5) and a blade cover (6) is formed in a region (positive-pressure surface 12), the plane of which is parallel to a direction of airflow on the positive-pressure surface (12) of a blade (2). Consequently, because air sucked in from the direction of the rotational axis of the turbofan (20) becomes less likely to enter a gap of the connection part (7) of the blade (2), noise can be reduced. Because noise is reduced, there is no need for high-precision dimensional management of the gap of the connection part (7) of the blade (2), which makes the dimensional management easier at the time of production, thereby facilitating the production. Selon l'invention, un module de raccordement (7) entre une pale principale (5) et un couvercle de pale (6) est formé dans une zone (surface de pression positive (12)) dont le plan est parallèle à une direction d'écoulement de l'air sur la surface de pression positive (12) d'une pale (2). En conséquence, le bruit peut être réduit du fait que l'air aspiré provenant de la direction de l'axe de rotation du turboréacteur à double flux (20) devient moins susceptible de pénétrer dans un espace du module de raccordement (7) de la pale (2). Cette réduction du bruit rend superflu une gestion dimensionnelle de haute précision de l'espace du module de raccordement (7) de la pale (2), ce qui facilite la gestion dimensionnelle au moment de la production et, partant, la production. 主翼(5)と翼カバー(6)との連結部(7)が翼(2)の正圧面(12)上の気流の方向と面の向きが並行となる領域(正圧面12)に形成される。これによって、ターボファン(20)の回転軸方向から吸入された空気が、翼(2)の連結部(7)の隙間に入り込み難く、騒音を減少させることができる。また、騒音を減少させるので、翼(2)の連結部(7)の隙間の高精度な寸法管理が不要になり、製造時の寸法管理が容易になり、製造を容易にすることができる。
AbstractList In the present invention, a connection part (7) between a main blade (5) and a blade cover (6) is formed in a region (positive-pressure surface 12), the plane of which is parallel to a direction of airflow on the positive-pressure surface (12) of a blade (2). Consequently, because air sucked in from the direction of the rotational axis of the turbofan (20) becomes less likely to enter a gap of the connection part (7) of the blade (2), noise can be reduced. Because noise is reduced, there is no need for high-precision dimensional management of the gap of the connection part (7) of the blade (2), which makes the dimensional management easier at the time of production, thereby facilitating the production. Selon l'invention, un module de raccordement (7) entre une pale principale (5) et un couvercle de pale (6) est formé dans une zone (surface de pression positive (12)) dont le plan est parallèle à une direction d'écoulement de l'air sur la surface de pression positive (12) d'une pale (2). En conséquence, le bruit peut être réduit du fait que l'air aspiré provenant de la direction de l'axe de rotation du turboréacteur à double flux (20) devient moins susceptible de pénétrer dans un espace du module de raccordement (7) de la pale (2). Cette réduction du bruit rend superflu une gestion dimensionnelle de haute précision de l'espace du module de raccordement (7) de la pale (2), ce qui facilite la gestion dimensionnelle au moment de la production et, partant, la production. 主翼(5)と翼カバー(6)との連結部(7)が翼(2)の正圧面(12)上の気流の方向と面の向きが並行となる領域(正圧面12)に形成される。これによって、ターボファン(20)の回転軸方向から吸入された空気が、翼(2)の連結部(7)の隙間に入り込み難く、騒音を減少させることができる。また、騒音を減少させるので、翼(2)の連結部(7)の隙間の高精度な寸法管理が不要になり、製造時の寸法管理が容易になり、製造を容易にすることができる。
Author KURIHARA, Makoto
ISOMURA, Kazuki
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DocumentTitleAlternate TURBORÉACTEUR À DOUBLE FLUX ET DISPOSITIF DE CLIMATISATION
ターボファンおよび空気調和装置
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RelatedCompanies MITSUBISHI ELECTRIC CORPORATION
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Snippet In the present invention, a connection part (7) between a main blade (5) and a blade cover (6) is formed in a region (positive-pressure surface 12), the plane...
SourceID epo
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SubjectTerms BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
Title TURBOFAN AND AIR-CONDITIONING DEVICE
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