Patent · US Active

Counter-rotating turbine

US12071889B2 · kind B2 · utility

2Cited by

48References

19Claims

0Family size

Assignees

General Electric Company · US
General Electric Deutschland Holding GmbH · DE
GE AVIO S.R.L. · IT

Inventors

Paul Hadley Vitt · Monroe, US
Lyle Douglas Dailey · West Chester, US
Matteo Renato Usseglio · Torino, IT
Andreas Peters · Aschau am Inn, DE
Jonathan Ong · Garching an der Alz, DE

Key dates

Filing date	Apr 5, 2022
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Apr 5, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/40311
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A turbine section and an exhaust section for a gas turbine engine includes a low pressure (LP) turbine having first stage LP turbine blades that rotate in a first direction at a first speed, and final stage LP turbine blades downstream of the first stage LP turbine blades that rotate in a second direction opposite the first direction at a second speed. The second speed is lower than the first speed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.