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:
Sep. 03, 2019
Filed:
Nov. 27, 2014
Airbus Defence and Space Gmbh, Taufkirchen, DE;
Airbus Defence and Space SA, Madrid, ES;
Enrique Soriano, Donauwörth, DE;
Sven Kopp, Höhenkirchen, DE;
Winfried Lohmiller, Freising, DE;
Christian Thiele, Garching, DE;
Sergio Fernandez, Madrid, ES;
Pablo Blazques, Alcorcon, ES;
AIRBUS DEFENCE AND SPACE GMBH, Taufkirchen, DE;
AIRBUS DEFENCE AND SPACE SA, Madrid, ES;
Abstract
An aircraft fuel system comprises a fuselage tank and wing fuel tanks each connected to the fuselage fuel tank by a respective fuel line. A first fuel line connects the fuselage fuel tank to a collector fuel tank, which is connected by second fuel lines to aircraft engines in use of the system. Unspent fuel output from the aircraft engines is returned to the collector fuel tank via third fuel lines. A fuel line arrangement is arranged to draw fuel from, and return that fuel to, the wing fuel tanks. Fuel within the third fuel lines is thermally coupled to fuel within the fuel line arrangement by a heat exchanger. Heat energy within unspent fuel output from the aircraft engines is transferred to the wing fuel tanks, reducing the likelihood of fuel freezing within these tanks during extended flying in cold environments.