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:
Nov. 14, 2000
Filed:
Jul. 09, 1998
Giuseppe Romani, Mississauga, CA;
Pratt & Whitney Canada Corp., Longueil, CA;
Abstract
An integrated fan and low pressure compressor rotor having a hub with a circumferential array of primary blades. Each primary blade has a forward fan blade portion housed in the engine inlet radially extending from the hub to the fan case and a rearward compressor blade portion housed in the core duct radially extending from the hub to the intermediate case. The fan blade portion and compressor blade portion have aerodynamically aligned lateral airfoil surfaces and platforms such that the fan blade portion and compressor blade portion have continuously merged lateral airfoil surfaces and platforms. The integrated rotor replaces two conventional rotors resulting in cost savings.