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:
Apr. 04, 1995
Filed:
Dec. 06, 1993
Christopher D Mize, Palm Beach Gardens, FL (US);
William W Pirsig, Manchester, CT (US);
Peter T Vercellone, North Haven, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A buffer zone disposed between the TOBI (tangential on-board injector) discharge cavity and the forward rotor cavity of a gas turbine engine serves to maintain the TOBI air relatively pollutant free by judiciously controlling the flow to maintain the pressure of the buffer cavity below the adjacent cavities. The buffer cavity air and the forward rotor cavity air are bled to the dead rim area of the turbine rotor disk through tangentially oriented discharge ports formed in the circumferentially spaced plenums formed in the stator support. Plates on the bottom of some of the plenums block off the flow from the forward rotor cavity and buffer air from the buffer cavity flows through these closed of plenums to maintain the proper pressure relationship amongst the cavities.