A variable pitch bucket for a turbine fan includes a blade (60) and a root (62). The root portion (62) comprises a spherical portion (72) and a shank portion (74) connecting the spherical portion (72) to the blade (60), the spherical portion (72) being connected to the shank portion (74) by a neck portion (82) defining a local minimum of a cross-section of the root portion (62) along a plane orthogonal to the pitch axis. At least one section of the root (62) comprising at least a portion of the neck (82) and the shank (74) comprises a surface layer and an inner layer located between the pitch axis and the surface layer, the inner layer having a stiffness strictly greater than the stiffness of the surface layer.
公开了一种用于涡轮机风扇的可变桨距轮叶,包括叶片(60)和根部(62)。根部(62)包括球状部(72)和将球状部(72)连接到叶片(60)的柄状部(74),球状部(72)通过颈部(82)连接到柄状部(74),颈部限定根部(62)沿正交于桨距轴线的平面的横截面的局部最小值。根部(62)的包括颈部(82)和柄状部(74)的至少一部分的至少一个部段包括表面层和位于桨距轴线和表面层之间的内层,内层的刚度严格大于表面层的刚度。
Variable pitch bucket for turbine fan with stiffness gradient in root
在根部中具有刚度梯度的用于涡轮机风扇的可变桨距轮叶
2025-05-16
Patent
Electronic Resource
Chinese
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B64C AEROPLANES , Flugzeuge / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand |
Fixed bucket assembly including variable pitch bucket for turbine engine
European Patent Office | 2025
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