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. 27, 2018
Filed:
Jan. 10, 2013
Borgwarner Inc., Auburn Hills, MI (US);
Rajendra Vemula, Arden, NC (US);
Robert Lotz, Arden, NC (US);
George Edward Heddy, III, Hendersonville, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A plurality of guide vanes () in a variable turbine geometry turbocharger () regulates a flow of exhaust gas. The guide vanes () are selectively adjustable between an open position to allow the flow of exhaust gas to drive a turbine wheel () and a closed position to block the flow of exhaust gas. A first flow feature () is disposed on first () and second () edges of the guide vanes () to disturb the flow of exhaust gas to prevent leakage of exhaust gas around the first () and second () edges. A second flow feature () is disposed on front () and rear () surfaces of the guide vanes () to channel the flow of exhaust gas between adjacent guide vanes () when the guide vanes () are in the open position to prevent swirling and/or cross flow of the exhaust gas.