公开(公告)号：US20160061058A1

公开(公告)日：2016-03-03

申请号：US14827870

申请日：2015-08-17

Applicant: ROLLS-ROYCE PLC

Inventor： Colin YOUNG ,  Guy D SNOWSILL

IPC: F01D25/32 ,  F01D25/12 ,  F01D5/30

CPC classification number: F01D25/32 ,  F01D5/081 ,  F01D5/082 ,  F01D5/084 ,  F01D5/3007 ,  F05D2260/607

Abstract: A gas turbine engine rotor arrangement comprising at least one blade and a disc is disclosed. The blade extends radially outwards from the disc and is secured thereto by cooperating shank of the blade and recess of the disc. The shank comprises a bottom surface facing a base surface of the recess, the bottom surface having axially extending peripheral edges. The bottom surface is shaped so that when the engine rotor arrangement is in use, liquid in a cavity between the bottom surface and base surface, acted upon by an unbalanced force in the radially outward direction, is guided by the bottom surface to flow between and away from the axial edges.

Abstract translation: 公开了一种包括至少一个叶片和盘的燃气涡轮发动机转子装置。 叶片从盘径向向外延伸并且通过叶片的辅助柄和盘的凹部固定到其上。 柄包括面向凹部的底表面的底表面，底表面具有轴向延伸的外围边缘。 底面被成形为使得当使用发动机转子装置时，底面和底面之间的空腔中的液体在径向向外的方向上作用不平衡的力，由底表面引导以在 远离轴向边缘。

公开(公告)号：US20230122729A1

公开(公告)日：2023-04-20

申请号：US17966330

申请日：2022-10-14

Applicant: ROLLS-ROYCE plc

Inventor： Guy D SNOWSILL ,  Kali Charan NAYAK ,  Benjamin LITTLEY ,  John IRVING ,  Nomesh P KANDASWAMY ,  Jessica KENNEDY ,  Sean A WALTERS

IPC: F01D5/30

Abstract: A bladed disc system for a turbine engine, the bladed disk portion comprising a disk portion and a plurality of blade portions, the disc portion being shaped such that the blade portions are able to fit within fir tree slot in the disc portion, the blade portion comprising an aerofoil section and a root section, with the root section comprising a fir tree profile and a skirt portion and wherein the skirt portions of adjacent blades form an opening that has a maximum separation of between 1-50% of the maximum skirt opening width.

公开(公告)号：US20230122071A1

公开(公告)日：2023-04-20

申请号：US17966285

申请日：2022-10-14

Applicant: ROLLS-ROYCE plc

Inventor： Sean A WALTERS ,  John IRVING ,  Nomesh P KANDASWAMY ,  Jessica KENNEDY ,  Benjamin LITTLEY ,  Kali Charan NAYAK ,  Guy D SNOWSILL

IPC: F01D5/06 ,  F01D5/30

Abstract: A bladed disc system for a turbine engine having a disk portion and a plurality of blade portions which are associated with a stator section and an intercavity sealing portion, disc portion shaped such that blade portions are able to fit within firtree slot in disc portion, blade portion having aerofoil section and root section, aerofoil section having portion shaped such that they extend proximate to intercavity sealing portion, disc portion extending from portion that connects with drum to outer edge at which blade portions are connected with disc portion having width transition region in which thickness of disc increases from point at which disc connects to drum to outer edge at which it holds blade portions, and wherein width transition region has curved width transition region with radius r, and an overhanging portion which extends into the intercavity spacing between the width transition region and the intercavity sealing portion.