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:
Mar. 26, 2019
Filed:
Jul. 18, 2014
Borgwarner Inc., Auburn Hills, MI (US);
Allan D. Kelly, Hendersonville, NC (US);
E. Perry Ellwood, Saluda, NC (US);
Zachary Ashton, Arden, NC (US);
Robert T. Race, Arden, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A turbocharger rotating assembly () includes a shaft () rotatably supported in a bearing housing () via bearings (), a compressor impeller () mounted on the shaft (), and an oil flinger () disposed on the shaft () between the bearings () and the compressor impeller (). The turbocharger () further includes an insert () disposed in the shaft-receiving axial bore () so as to surround the oil flinger (), and a purge seal () operatively positioned in an interface () between the insert () and the oil flinger (), whereby the purge seal () is configured to minimize oil passage from the bearing housing () into the interface (). An annular cavity () encircles the radially outward-facing surface () of the insert (), the cavity () forming a portion of a fluid path configured to deliver pressurized fluid to the interface ().