公开(公告)号：US20200224549A1

公开(公告)日：2020-07-16

申请号：US16246902

申请日：2019-01-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Shraman Narayan Goswami ,  Hasham Hamzamiyan Chougule ,  Jyotichandra Shivaji Roa Jingade ,  Mohd Abdullah Qizar

IPC: F01D17/14 ,  F01D17/18

Abstract: A compressor of a gas turbine engine includes an impeller having a plurality of impeller blades. The compressor includes a diffuser downstream from the impeller that has a plurality of diffuser blades. Each diffuser blade extends from a hub to a shroud in a spanwise direction, and a leading edge of each diffuser blade is spaced apart from an impeller trailing edge of each of the plurality of impeller blades by a vaneless gap. Each diffuser blade includes a cutback region that extends from proximate the leading edge toward a trailing edge. The cutback region reduces a thickness of each of the diffuser blades such that a throat area defined between adjacent diffuser blades increases in the spanwise direction from the hub to the shroud and the vaneless gap increases in the spanwise direction from the hub to the shroud.

公开(公告)号：US11131210B2

公开(公告)日：2021-09-28

申请号：US16246902

申请日：2019-01-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Shraman Narayan Goswami ,  Hasham Hamzamiyan Chougule ,  Jyotichandra Shivaji Roa Jingade ,  Mohd Abdullah Qizar

IPC: F01D17/14 ,  F01D17/18

Abstract: A compressor of a gas turbine engine includes an impeller having a plurality of impeller blades. The compressor includes a diffuser downstream from the impeller that has a plurality of diffuser blades. Each diffuser blade extends from a hub to a shroud in a spanwise direction, and a leading edge of each diffuser blade is spaced apart from an impeller trailing edge of each of the plurality of impeller blades by a vaneless gap. Each diffuser blade includes a cutback region that extends from proximate the leading edge toward a trailing edge. The cutback region reduces a thickness of each of the diffuser blades such that a throat area defined between adjacent diffuser blades increases in the spanwise direction from the hub to the shroud and the vaneless gap increases in the spanwise direction from the hub to the shroud.