PINION OF A TURBINE ENGINE SHAFT HAVING A WEB COMPRISING A CROSS-LINKED STRUCTURE

• Main Authors: LANQUETIN REMI, NIFENECKER ARNAUD, LAHITTETE ANTOINE
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINEERING ELEMENTS AND UNITS; GAS-TURBINE PLANTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The present invention relates to a pinion for a gear train of an aircraft turbine engine, the pinion comprising: - a cylindrical body (2) extending along an axis and configured to engage with a shaft received in the cylindrical body, - a rim (4) concentric with the cylindrical body, - a web (3) defined axially by a front wall (32) and a rear wall (33) and extending radially from the cylindrical body to the rim, each of the front and rear walls having a density, the pinion comprising a cross-linked structure (5) around the cylindrical body between the front wall and the rear wall, the cross-linked structure comprising a unit cell repeated along three axes of a three-dimensional coordinate system, a density of the unit cell being strictly less than each of the densities of the front and rear walls. 本发明涉及一种用于飞行器涡轮发动机齿轮系的小齿轮，所述小齿轮包括：-圆柱形主体(2)，所述圆柱形主体沿轴线延伸，并且被配置为与容纳在所述圆柱形主体中的轴接合，-轮缘(4)，所述轮缘与所述圆柱形主体同轴，-辐板(3)，所述辐板由前壁(32)和后壁(33)轴向地限定并且从所述圆柱形主体径向地延伸到所述轮缘，所述前壁和后壁中的每一者都具有密度，所述小齿轮包括在所述前壁和所述后壁之间围绕所述圆柱形主体的交联结构(5)，所述交联结构包括沿