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:
Mar. 30, 2010
Filed:
Oct. 13, 2006
Fabien Wahl, Saint Marcel, FR;
Francois Danguy, Tourny, FR;
Stephane Laffite, Vernon, FR;
Philippe Bourdin, Saint Marcel, FR;
Fabien Wahl, Saint Marcel, FR;
Francois Danguy, Tourny, FR;
Stephane Laffite, Vernon, FR;
Philippe Bourdin, Saint Marcel, FR;
SNECMA, Paris, FR;
Abstract
A pump for the drawing-in of a fluid, including at least one centrifugal wheel having a fluid inlet edge and a fluid outlet edge, the pump further including an axial balancing system with a high-pressure flow space defined between the housing and an upstream face of the centrifugal wheel. The axial balancing system further includes a device for substantially increasing the hydrostatic pressure of the fluid circulating in the high-pressure flow space during operation of the pump.