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:
Apr. 04, 1995
Filed:
Nov. 24, 1993
Jean-Robert Lehe, Vernon, FR;
Andre Beaurain, Chambly, FR;
Societe Europeenne de Propulsion, Suresnes, FR;
Abstract
A compact high power turbopump for feeding liquid propellant to a rocket engine comprises: a short, large diameter shaft that is capable of rotating; a single impeller providing a large pressure rise at a large flow rate, the impeller being mounted on the short shaft so as to constitute a single pump stage; a ball bearing for supporting the short shaft in a small section zone thereof situated in front of the impeller; a fluid bearing dimensioned so as to withstand a high speed of rotation N and having a large diameter D, the fluid bearing serving to support the short shaft in a large section zone situated behind the impeller; a turbine cantilevered out on the short shaft behind the fluid bearing; an inducer of the high pressure type disposed upstream from the ball bearing on the suction pipe; and metal casing elements for the pump and for the turbine that are of simplified shape.