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:
Aug. 13, 2019
Filed:
Sep. 10, 2013
Borgwarner Inc., Auburn Hills, MI (US);
Jason W. Chekansky, Asheville, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A seal () for a shaft () of a turbocharger () to prevent liquid from leaking out of a bearing housing (). The seal () includes a cylindrical body extending between opposite end faces () and has a cylindrical bore extending between the opposite end faces () for receiving the shaft () therethrough. The cylindrical bore defines an inner surface () having at least one striation () extending in a helical direction about the shaft (). Rotation of the shaft () relative to the seal () causes a pumping effect on liquid present between the shaft () and the inner surface () of the seal (), thereby causing the liquid to flow back towards the bearing housing ().