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. 09, 2002
Filed:
Jul. 21, 2000
Hisao Futamura, Tokyo, JP;
Hideyuki Taguchi, Murayama, JP;
Abstract
A jet engine for supersonic aircraft which enables supersonic flight and high fuel efficiency to be achieved while suppressing noise at take-off. The engine comprises a front engine consisting of a turbofan engine, and a rear engine or engines consisting of a turbofan or turbojet engine disposed to the rear of said front engine, the rear engine(s) being coupled switchably by a tube to the bypass duct of the front engine, the air inlet(s) of the rear engine(s) being coupled to the bypass duct during supersonic flight, or during acceleration to supersonic speed, whereby the pressure and temperature of the bypass air from the front engine is raised by the rear engine(s), and the air inlet(s) of the rear engine(s) being separated from the bypass duct during take-off, in such a manner that the bypass air is discharged without the temperature or pressure thereof being raised further.