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. 24, 2015
Filed:
Apr. 19, 2010
John P. Watson, Arden, NC (US);
Tilman Bernauer, Ulm, DE;
Kurtis E. Henderson, Candler, NC (US);
David G. Grabowska, Asheville, NC (US);
John P. Watson, Arden, NC (US);
Tilman Bernauer, Ulm, DE;
Kurtis E. Henderson, Candler, NC (US);
David G. Grabowska, Asheville, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A variable geometry turbocharger is simplified yet able to maintain pulse energy. In a first embodiment, a turbine housing is provided with a pivoting wall which pivots about a point near the entry to the turbine housing. By moving the wall about the pivot point, the effective volume of the turbine housing volute is varied, thus effectively reducing the volume of exhaust gas in the volute, allowing control of exhaust gas flowing to the turbine wheel. In the second embodiment of the invention, a rotating wedge segment within the volute is rotated from a first position to a second position, changing the effective volume of the volute and allowing control of exhaust gas flowing to the turbine wheel.