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:
Oct. 20, 1998
Filed:
Apr. 10, 1997
Applicant:
Inventors:
Xavier Jean-Michel Andre Guyonnet, 77310-Saint Fargeau Ponthierry, FR;
Pascal Claude Wurniesky, 77176-Savigny Le Temple, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ; F02K / ;
U.S. Cl.
CPC ...
602261 ; 60262 ;
Abstract
A bypass engine including a fan which has its blades disposed in both the imary gas flow path and the secondary gas flow path of the engine is provided with an annular intermediate gas flow path in the space between the primary and secondary flow paths, and gas take-off means is connected to a compressor of the engine and arranged to direct a flow of gas longitudinally along the intermediate flow path to prevent leakage of hot gas to the secondary flow path via the gaps existing between the platforms of the fan blades and the adjacent annular members of the primary and secondary flow paths.