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. 26, 2011
Filed:
Mar. 18, 2008
Alex Pinera, Jupiter, FL (US);
Frank W Huber, Palm Beach Gardens, FL (US);
Alex Pinera, Jupiter, FL (US);
Frank W Huber, Palm Beach Gardens, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A two blade row inducer for a low pressure pump in a turbopump of a rocket engine. The inducer includes a first set of blades and a second set of blades or partial blades in which the partial set of blades is covered with a shroud and the shroud includes a row of turbine blades extending outward to form a turbine to drive the inducer. The first set of blades is spiral or screw thread blades that end just upstream from the leading edges of the second set of blades covered with the shroud. In another embodiment, the screw thread blades can extend toward the aft end of the inducer and in-between adjacent partial blades in which the shroud also covers the aft ends of the screw thread blades. A second fluid reacts with the turbine blades to rotate the inducer and pump the first fluid.