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. 10, 2015
Filed:
Feb. 17, 2015
Borgwarner Inc., Auburn Hills, MI (US);
Donald Michael Kennedy, Asheville, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A method of balancing a core assembly of a turbocharger. The core assembly may include a rotor assembly having a compressor wheel and a turbine wheel connected for common rotation by a shaft. A first bending critical speed of the rotor assembly may be determined. The core assembly may be mounted in a balancing machine. A drive source may be engaged with the core assembly to impart rotation. The rotor assembly may be rotated at an initial phase speed that is between approximately 5500 revolutions per minute and the first bending critical speed. A state of imbalance of the rotor assembly may be determined at the initial phase speed.