公开(公告)号：US20140248155A1

公开(公告)日：2014-09-04

申请号：US14348770

申请日：2012-10-08

Applicant: SNECMA

Inventor： Didier Merville ,  Lucie Galons ,  Vincent Perrot ,  Hanna Reiss

IPC: F01D5/12

CPC classification number: F01D5/12 ,  F01D5/14 ,  F01D5/141 ,  F01D5/34 ,  F04D29/324 ,  F05D2240/301 ,  F05D2250/70 ,  F05D2250/71 ,  Y02T50/673

Abstract: A one-block bladed disk includes blades, a leading edges of which has sweep and dihedral angles, both strongly variable and increasingly large upon approaching a connection to a hub to improve mechanical strength of the whole and obtain good distribution of gas flow over the height of the blade.

Abstract translation: 单块叶片包括叶片，其前缘具有扫掠和二面角，当接近与轮毂的连接时，它们都具有可变性和越来越大的程度，以提高整体的机械强度并获得在高度上的气流的良好分布 的刀片。

公开(公告)号：US09995156B2

公开(公告)日：2018-06-12

申请号：US14414307

申请日：2013-06-28

Applicant: SNECMA

Inventor： Laurent Jablonski ,  Hanna Reiss ,  Jerome Talbotec ,  Sandrine Quevreux

IPC: F01D9/02 ,  F01D5/14 ,  F04D29/32 ,  F04D29/38

CPC classification number: F01D9/02 ,  F01D5/141 ,  F04D29/324 ,  F04D29/384 ,  F05D2220/36

Abstract: A turbomachine vane including a plurality of vane sections stacked along a radial axis, each vane section extending along a longitudinal axis between a leading edge and a trailing edge, and along a tangential axis between an active surface and a passive surface, the vane sections being distributed according to longitudinal and tangential distribution laws defining positioning of respective centers of gravity thereof in relation to the longitudinal and tangential axes according to a height of the vane extending from a foot of the vane to a top thereof. Each of the longitudinal and tangential distribution laws involves a change in direction of the slope at between 90% and 100% of the height of the vane.

公开(公告)号：US09677404B2

公开(公告)日：2017-06-13

申请号：US14348770

申请日：2012-10-08

Applicant: SNECMA

Inventor： Didier Merville ,  Lucie Galons ,  Vincent Perrot ,  Hanna Reiss

IPC: F01D5/14 ,  F01D5/12 ,  F01D5/34 ,  F04D29/32

CPC classification number: F01D5/12 ,  F01D5/14 ,  F01D5/141 ,  F01D5/34 ,  F04D29/324 ,  F05D2240/301 ,  F05D2250/70 ,  F05D2250/71 ,  Y02T50/673

Abstract: A one-block bladed disk includes blades, a leading edges of which has sweep and dihedral angles, both strongly variable and increasingly large upon approaching a connection to a hub to improve mechanical strength of the whole and obtain good distribution of gas flow over the height of the blade.

公开(公告)号：US20150226074A1

公开(公告)日：2015-08-13

申请号：US14413042

申请日：2013-06-28

Applicant: SNECMA

Inventor： Pradeep Cojande ,  Hanna Reiss

IPC: F01D9/04 ,  F01D1/04

CPC classification number: F01D9/04 ,  F01D1/04 ,  F01D5/141 ,  F01D9/041 ,  F04D29/544 ,  F05B2250/71 ,  F05D2220/36 ,  F05D2240/121 ,  Y02T50/673

Abstract: A set of turbomachine guide vanes including plural vanes arranged around an annulus, each vane having a leading edge extending between root and tip ends, the leading edge offset between these two ends being greater than 10% of the blade height. A tangential stacking of the guide vanes towards the suction face side, the curve of tangential stacking, of the position, in the direction tangential to the annulus, of centers of gravity of successive vane cross sections along the vane height, is a curve that increases constantly towards the suction face side. The curve, near the vane tip end, has an accentuated gradient towards the suction face side compared with the rest of the curve, and has a mean gradient near the vane tip end that is greater than at least 1.2 times the mean gradient of the curve over the portion between 30% and 90% of the vane height.

Abstract translation: 一组涡轮机引导叶片，其包括围绕环带布置的多个叶片，每个叶片具有在根部和尖端之间延伸的前缘，这两个端部之间的前缘偏移大于叶片高度的10％。 沿着叶片高度，连续的叶片横截面的重心沿着叶片高度，朝向吸力面侧的导向叶片的切向堆叠，沿着与圆环相切的方向的切向堆叠的位置的曲线的曲线是增加的曲线 不断向吸力面侧。 在叶片末端附近的曲线与曲线的其余部分相比，具有与吸力面相比较强的梯度，并且在叶片尖端附近具有大于曲线平均梯度的至少1.2倍的平均梯度 超过叶片高度的30％至90％之间的部分。

公开(公告)号：US20150192024A1

公开(公告)日：2015-07-09

申请号：US14414307

申请日：2013-06-28

Applicant: SNECMA

Inventor： Laurent Jablonski ,  Hanna Reiss ,  Jerome Talbotec ,  Sandrine Quevreux

IPC: F01D9/02

CPC classification number: F01D9/02 ,  F01D5/141 ,  F04D29/324 ,  F04D29/384 ,  F05D2220/36

Abstract: A turbomachine vane including a plurality of vane sections stacked along a radial axis, each vane section extending along a longitudinal axis between a leading edge and a trailing edge, and along a tangential axis between an active surface and a passive surface, the vane sections being distributed according to longitudinal and tangential distribution laws defining positioning of respective centers of gravity thereof in relation to the longitudinal and tangential axes according to a height of the vane extending from a foot of the vane to a top thereof. Each of the longitudinal and tangential distribution laws involves a change in direction of the slope at between 90% and 100% of the height of the vane.

Abstract translation: 一种涡轮机叶片，包括沿着径向轴线堆叠的多个叶片部分，每个叶片部分沿着前缘和后缘之间的纵向轴线延伸，并且沿着活动表面和被动表面之间的切线轴线，叶片部分是 根据纵向和切向分布规律分布，根据从叶片的脚部向其顶部延伸的叶片的高度，确定其相对于纵向和相对轴线的重心的位置。 每个纵向和切向分布规律涉及在叶片高度的90％至100％之间的斜率方向的变化。

公开(公告)号：US20150152880A1

公开(公告)日：2015-06-04

申请号：US14403003

申请日：2013-05-23

Applicant: SNECMA

Inventor： Hanna Reiss ,  Adrien Biscay ,  Benoit Fayard ,  Laurent Jablonski ,  Damien Merlot

IPC: F04D29/38 ,  F04D29/32 ,  F04D19/00

CPC classification number: F04D29/384 ,  F01D5/141 ,  F04D19/002 ,  F04D29/324 ,  F04D29/388 ,  F04D29/666 ,  F05D2220/36 ,  F05D2250/713 ,  F05D2260/961 ,  Y02T50/671 ,  Y02T50/673

Abstract: A fan blade for an airplane turbojet, the blade including an airfoil extending axially between a leading edge and a trailing edge and including a plurality of airfoil sections stacked radially between a root section and a tip section. All of the airfoil sections situated between the root section and an airfoil section situated at a radial height corresponding to 30% of a total radial height of the airfoil possess a skeleton curve having a point of inflection.

Abstract translation: 一种用于飞机涡轮喷气发动机的风扇叶片，所述叶片包括在前缘和后缘之间轴向延伸的翼型，并且包括在根部和末端部之间径向叠置的多个翼型段。 位于根部和位于对应于翼型件的总径向高度的30％的径向高度处的翼型部分之间的所有翼型部分具有具有拐点的骨架曲线。