The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2022
Filed:
Jun. 14, 2019
Nuovo Pignone Tecnologie—s.r.l., Florence, IT;
Luciano Mei, Florence, IT;
Francesco Caratelli, Florence, IT;
Alessandro Russo, Florence, IT;
Massimiliano Mariotti, Florence, IT;
Alberto Ceccherini, Florence, IT;
NUOVO PIGNONE TECNOLOGIE SRL, Florence, IT;
Abstract
The gas turbine engine comprises a gas generator (), comprised of a compressor section (), and a power turbine section (). The power turbine section () comprises a power turbine rotor () supported by a power turbine shaft (), which is mechanically uncoupled from the gas generator (). The power turbine shaft () has an axial cavity () therein, fluidly coupled to a bearing sump () fluidly coupled to the compressor section () and housing at least one bearing () supporting a shaft of the gas generator (). An air venting path () extends from said axial cavity () and leads in a combustion gas flow path () downstream of the power turbine rotor ().