Variabler Reaktionsfreilauf für einen Turbinenabschnitt eines Gasturbinenmotors

Details

Veröffentlichungs-Nr.

EP3708803

Aktenzeichen

EP20162823

Anmeldetag

12. März 2020

Veröffentlichung

26. April 2023

Erteilung

26. April 2023

Rechtsraum

EP

IPC

F01D17/12F02C3/00// F01D15/10

Abstract

The present invention relates to a turbine section (28) for a gas turbine engine (20) including a variable reaction free wheel (110) downstream of the first static vane structure (100) and upstream of the turbine rotor (126). The variable reaction free wheel corresponds to a low-pressure compressor which imparts an additional swirl to the main gas flow upstream of the turbine rotor (126) thereby increasing the circumferential velocity component of the main gas flow at the turbin rotor inlet. Thus, the rotational speed of the turbine rotor (126) may be substantially reduced without reducing the performed work and additionally decreasing outlet Mach number characteristics of the turbine rotor. The variable reaction free wheel (110) is independently driven preferably by an electric motor. Thus, the rotor speed of the wheel may be continuously adapted to operating conditions of the turbine section (28). This improves thermodynamic efficiency of the turbine section.

Anmelder

Firmen

RTX Corporation
Raytheon Technologies Corporation
United Technologies Corporation

Land

🇺🇸 USA

Fachgebiete