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:
Feb. 04, 2020
Filed:
May. 26, 2017
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Alan H. Epstein, Lexington, MA (US);
Gabriel L. Suciu, Glastonbury, CT (US);
Jesse M. Chandler, South Windsor, CT (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 21/06 (2006.01); B64C 23/02 (2006.01); B64C 1/00 (2006.01); B64D 33/02 (2006.01);
U.S. Cl.
CPC ...
B64C 21/06 (2013.01); B64C 23/02 (2013.01); B64C 1/0009 (2013.01); B64D 2033/0226 (2013.01);
Abstract
A propulsion system for an aircraft including at least two main gas turbine engines and a plurality of dedicated boundary layer ingestion fans. The propulsion system is arranged such that a combined thrust produced by the boundary layer ingestion fans is less than 20 percent of a total thrust of the main engines and the boundary layer ingestion fans. The boundary layer ingestion fans are controllable and selectively turned off at lower speeds.