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. 01, 1982
Filed:
Nov. 14, 1979
Applicant:
Inventors:
Frederick M Schwarz, Glastonbury, CT (US);
James G Griffin, West Hartford, CT (US);
Vytautis P Gudaitus, Bristol, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ; F02C / ; F02C / ;
U.S. Cl.
CPC ...
60 3975 ; 415115 ; 415116 ; 4151 / ;
Abstract
To improve on thrust specific fuel consumption for a gas turbine engine, compressor bleed for turbine cooling is divided into an air distribution system where at least one duct is valved and the other is continuously flowing restrictively with the excess air passing through the turbine mixing with gas path air in the vicinity of the rotating turbine labyrinth type seal to assure seal cooling with sufficient heating of the rotating parts to achieve minimum gap clearance of the seal.