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:
Jul. 10, 2012
Filed:
May. 17, 2010
Wilho V Aho, Jr., West Palm Beach, FL (US);
Wilho V Aho, Jr., West Palm Beach, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A floating air seal to seal a lower pressure chamber from a higher pressure chamber and allow for both axial and radial shifting of the rotor with respect to the stator while maintaining the sealing capability. The floating seal includes an annular piston that slides within an annular groove formed within the stator in an axial direction with an annular flange secured to it that forms an annular manifold between the piston and the flange. The annular piston includes a plurality of feed holes that open into the annular manifold, and the annular flange includes a plurality of baffle holes that open into the annular manifold but offset from the feed holes so that Helmholtz excitations of the rotor disk do not occur. The baffle holes open into an outer annular groove that forms an air cushion against the rotor disk surface due to the air flow.