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:
Jun. 26, 2012
Filed:
Feb. 17, 2006
Jean-marie Brocard, Rubelles, FR;
Regis Michel Paul Deldalle, Servon, FR;
Philippe Galozio, Lieusaint, FR;
Michel Martini, Ponthierry, FR;
Alain Michel Varizat, Bois le Roi, FR;
Jean-Marie Brocard, Rubelles, FR;
Regis Michel Paul Deldalle, Servon, FR;
Philippe Galozio, Lieusaint, FR;
Michel Martini, Ponthierry, FR;
Alain Michel Varizat, Bois le Roi, FR;
SNECMA, Paris, FR;
Abstract
A centrifugal pump driven by mechanical coupling with an engine has a low pressure inlet receiving fuel from a fuel circuit of an aircraft, a high pressure outlet connected to a regulator circuit for regulating the flow rate of fuel supplied to the engine, and an assistance pump unit that is electrically controlled, having an inlet connected to the aircraft fuel circuit and an outlet connected to the flow rate regulator circuit so as to deliver, via its outlet, fuel that is at a predetermined minimum pressure, the pressure of the fuel supplied to the regulator circuit being the higher of the pressures delivered by the centrifugal pump and the assistance pump unit.