Patent · US Expired

Counter-rotating turbine engine and method of assembling same

US7195446B2 · kind B2 · utility

60Cited by
18References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 2004
Grant dateMar 27, 2007
Priority date
Expiry dateApr 21, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16C2360/23
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor configured to rotate in a first direction, providing a low-pressure turbine outer rotor configured to rotate in a second direction that is opposite the first rotational direction, and coupling at least one foil bearing to at least one of the inner and outer rotors to facilitate improving clearance control between a first rotating component and at least one of a second rotating component and a non-rotating component.

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