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. 06, 2013
Filed:
Sep. 25, 2009
Applicant:
David G. Grabowska, Asheville, NC (US);
Inventor:
David G. Grabowska, Asheville, NC (US);
Assignee:
BorgWarner Inc., Auburn Hills, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02D 23/00 (2006.01); B22D 41/16 (2006.01); F16K 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wastegate for a turbocharger wherein the valve is provided with a horn to provide a more progressive, optimally near linear, curve of turbocharger boost-to-valve opening than possible with the typical flat wastegate valve. The addition of a three-dimensional horn in the flow path is a far more cost-effective solution to acquire linear flow than an approach involving very finite, accurate control of the valve position.