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. 05, 2011
Filed:
May. 02, 2007
Daniel O. Davies, Palm City, FL (US);
Daniel O. Davies, Palm City, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A turbine blade for a gas turbine engine, in which the turbine blade includes an airfoil portion with a root having a dovetail shape, and two platform halves that include a dovetail shaped opening within the platform halves to secure the blade root within the platform halves when fastened together. The platform halves have an outer fir tree shaped surface so that the blade assembly can be inserted into a slot within a rotor disk. the blade is uncoupled from the platform in the invention so that the airfoil can be made from a single crystal material with low casting defects because the platform is not cast with the airfoil. the two platform halves include the openings with side walls that are curved to follow the contour of the airfoil root so that the airfoil is secured within the platform halves against all directions of movement. An annular groove extends around the platform opening to provide for a seal to produce a seal between the high pressure cooling air supply passage within the platform and the lower pressure hot gas flow passing through the blade.