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. 21, 1992
Filed:
Apr. 25, 1990
Applicant:
Inventor:
Alain M Lardellier, Melun, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K / ;
U.S. Cl.
CPC ...
602261 ; 60268 ;
Abstract
A gas turbine engine with counterrotating fans placed upstream from the engine so that gas circulates from upstream to downstream at the level of a LP compressor (1), then from downstream to upstream in a HP compressor (5), chamber an (6) and HP and LP turbines (7 and 8), then again downstream in first and second turbines (10, 11) before being expelled into the cold airflow coming from first and second fans (14, 15).