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. 22, 2014
Filed:
Jan. 24, 2008
David Decker, Arden, NC (US);
Stephen I. Roby, Asheville, NC (US);
David Decker, Arden, NC (US);
Stephen I. Roby, Asheville, NC (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
An air boost device such as a turbocharger, wherein the compressor wheel thereof is re-designed to permit die inserts (), which occupy the air passage and define the blades () during a process of forming a wax pattern () of a compressor wheel, to be pulled without being impeded by the blades. This modified blade design enables the automated production of wax patterns () using simplified tooling. The compressor wheel improves low cycle fatigue, withstands high temperatures and temperature changes, and permits operation at high boost pressure ratio while, on the other hand, having low weight, low inertial drag, and high responsiveness.