公开(公告)号：US20190353180A1

公开(公告)日：2019-11-21

申请号：US16529404

申请日：2019-08-01

Applicant: Rolls-Royce Corporation

Inventor： Nathan Ottow ,  Johnathan Acker ,  Nate Cooper ,  Mark Whitlock ,  Michael Nesteroff

IPC: F04D29/42 ,  F04D27/02 ,  F01D11/22 ,  F04D29/16

Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.

公开(公告)号：US10935044B2

公开(公告)日：2021-03-02

申请号：US16529404

申请日：2019-08-01

Applicant: Rolls-Royce Corporation

Inventor： Nathan Ottow ,  Johnathan Acker ,  Nate Cooper ,  Mark Whitlock ,  Michael Nesteroff

IPC: F04D29/42 ,  F04D29/16 ,  F04D27/02 ,  F01D11/22 ,  F04D29/62 ,  F01D25/24 ,  F01D11/08

Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.