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:
Jul. 25, 1978
Filed:
Oct. 19, 1976
Applicant:
Inventor:
Robert C Wibbelsman, Cleves, OH (US);
Assignee:
General Electric Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415-1 ; 415 28 ; 415 29 ; 6022 / ;
Abstract
The opening of variable bleed doors is scheduled as a function of both booster and compressor speed so as to better maintain the desired booster stall margin and increase efficiency during certain periods of engine operation. The schedule based on core speed is modified in response to changes in fan speed to increase or decrease the amount of bleed, thereby increasing stall margin or improving the steady-state performance, respectively.