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:
Jan. 03, 2012
Filed:
Dec. 23, 2008
Marcus Joseph Ottaviano, North Reading, MA (US);
Robert John Parks, Ipswich, MA (US);
John Lawrence Noon, Swampscott, MA (US);
Mark Michael D'andrea, Belmont, MA (US);
Thomas Michael Regan, Marblehead, MA (US);
Marcus Joseph Ottaviano, North Reading, MA (US);
Robert John Parks, Ipswich, MA (US);
John Lawrence Noon, Swampscott, MA (US);
Mark Michael D'Andrea, Belmont, MA (US);
Thomas Michael Regan, Marblehead, MA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A gas turbine engine turbine cooling system includes an impeller and a diffuser directly downstream of the impeller, a bleed for bleeding clean cooling air from downstream of the diffuser, and one or more channels in fluid communication with the bleed. Each of the channels having a generally radially extending section followed by a generally axially aftwardly extending section terminating at an annular cooling air plenum connected to accelerators. The radially and axially aftwardly extending sections may be connected by a bend section of the cooling air channel and the axially aftwardly extending section may be angled radially inwardly going from the bend section to the cooling air plenum. Each of the cooling channels includes an inner wall formed by a forward end wall extending radially outwardly from an inner combustor casing, an annular cover covering a radially inner portion of the forward end wall, and the inner combustor casing.