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1. 发明专利

JP2008121670A Swept turbomachine blade 有权
标题翻译： SWEPT涡轮叶片
公开(公告)号：JP2008121670A
公开(公告)日：2008-05-29
申请号：JP2007287122
申请日：2007-11-05
申请人： Snecma , スネクマ
发明人： BOIS BEATRICE , MADEC ALAIN , M BENGUE AMADOU
IPC分类号： F04D29/38 , F02C7/00 , F02C7/045
CPC分类号： F04D29/384 , F01D5/141 , F04D29/324 , F04D29/681 , F05D2240/301 , Y02T50/672 , Y02T50/673
摘要： PROBLEM TO BE SOLVED: To mitigate conventional drawbacks of a turbomachine blade equipped with a plurality of blade sections (22) stacked along a radial axis (Z-Z). SOLUTION: The projection of a line (28a) interconnecting the leading edges of the blade sections (22) of a bottom stack (28) onto a mid-plane presents a first longitudinal angle (α) of inclination towards a leading edge (24) that lies in the range 10 to 25°, the projection of a line (30a) interconnecting the leading edges of the blade sections (22) of an intermediate stack (30) presents a second longitudinal angle (β) of inclination towards the trailing edge lying in the range 10 to 25°, the projection of a line (32a) interconnecting the leading edges of the blade sections (22) of a top stack (32) presents a third longitudinal angle (γ) of inclination towards the trailing edge lying in the range 20 to 50°, and a bottom limit (34) of the intermediate stack (30) of the blade sections (22) lies in the range 30 to 40% of the total radial height of the stack of blade sections (22). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减轻配备有沿着径向轴线（Z-Z）堆叠的多个叶片部分（22）的涡轮机叶片的常规缺点。解决方案：将底部堆叠（28）的叶片部分（22）的前缘互连到中间平面上的线（28a）的突出部朝向前边缘呈现倾斜的第一纵向角度（α）（24），其位于10至25°的范围内，与中间堆叠（30）的叶片部分（22）的前缘相互连接的线（30a）的突起呈倾斜的第二纵向角（β）后缘位于10至25°的范围内，与顶部叠层（32）的叶片部分（22）的前缘相互连接的线（32a）的突出部呈现向第三纵向角度（γ）后缘位于20至50°的范围内，叶片部分（22）的中间叠层（30）的下限（34）位于叶片堆叠的总径向高度的30％至40％的范围内部分（22）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007045393A Mechanical parts and manufacturing method thereof 有权
标题翻译：机械部件及其制造方法
公开(公告)号：JP2007045393A
公开(公告)日：2007-02-22
申请号：JP2006170975
申请日：2006-06-21
申请人： Snecma , スネクマ
发明人： COUPE DOMINIQUE , DAMBRINE BRUNO , LACORRE FABIENNE , MADEC ALAIN , MAHIEU JEAN-NOEL
IPC分类号： B64C25/10 , B29C70/20 , B29C70/34 , B32B5/26 , B64C25/02
CPC分类号： D03D25/005 , B29C70/24 , B29C70/48 , B29L2031/3076 , B29L2031/7488 , B64C25/12 , F16C7/026 , F16C2326/43 , Y10T74/2142 , Y10T442/3195 , Y10T442/3203 , Y10T442/3211
摘要： PROBLEM TO BE SOLVED: To provide a light mechanical part strong enough against mechanical force. SOLUTION: The mechanical part to be hinged to other mechanical part in ends 10a thereof is provided, and at least one part of the mechanical part is made of a compound material structured of the central fiber pre-form 13 and a peripheral fiber pre-form 11 made of a three-dimensional woven fabric. The pre-forms are assembled together while dry, and impregnated with resin, and the peripheral pre-form surrounds the central pre-form in such a manner as to leave two empty spaces 14 to be dedicated to hinge-connection to said other part between the two pre-forms in the ends 10a of the mechanical part. Metal inserts 16 can be received in the empty places 14. The mechanical part can be used as a lever for a landing gear brace. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供足够强的机械力抵抗机械力的轻型机械部件。解决方案：提供与其端部10a中的其它机械部件铰接的机械部件，并且机械部件的至少一部分由由中心纤维预成型件13和外围纤维构成的复合材料制成预成型11由三维织物制成。预成型件在干燥时组装在一起，并用树脂浸渍，并且周边预成型件以这样的方式包围中央预成型件，以便留下两个空的空间14，专用于铰链连接到所述另一部分之间的铰链连接在机械部件的端部10a中的两个预成型件。金属插入件16可以容纳在空的位置14中。机械部件可以用作起落架支架的杠杆。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2004263688A Controlling axial position of fan blade 有权
公开(公告)号：JP2004263688A
公开(公告)日：2004-09-24
申请号：JP2003321226
申请日：2003-09-12
申请人： Snecma Moteurs , スネクマ・モトウール
发明人： BASSOT ALAIN JACQUES MICHEL , BONNY JEAN-CLAUDE , EVEN PHILIPPE , LAMOTHE PIERRE ANTOINE , MADEC ALAIN , REGHEZZA PATRICK JEAN LOUIS
IPC分类号： F04D29/34 , F01D5/30 , F04D29/00 , F04D29/32
CPC分类号： F01D5/323 , F01D5/3007 , F04D29/322 , F05D2230/64 , F05D2260/30 , F05D2300/43
摘要： PROBLEM TO BE SOLVED: To provide a fan rotor where the axial position of a blade is controlled by a simple and inexpensive device and no problem arises in assembling or removing the blade when a repair is performed.
SOLUTION: The invention relates to the fan rotor comprising a disk 2 having a rim with axial grooves, a plurality of blades 3 each of which has a blade root 4 received in a respective groove 5, a downstream flange plate secured to the disk 2 with the downstream faces of the blade roots being in abutment thereagainst, and a removable upstream flange plate 12 secured to the disk 2 for the purpose of retaining the blade roots 4 in the grooves 5. In the rotor, a resilient means for exerting sufficient force on the upstream faces of the blade roots is mounted to the downstream face of the upstream flange plate 12, after assembly, to prevent any axial displacement of the blades during normal operation of the engine.
COPYRIGHT: (C)2004,JPO&NCIPI

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