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. 31, 2020
Filed:
Jan. 22, 2016
Applicant:
Borgwarner Inc., Auburn Hills, MI (US);
Inventors:
Silvio Koch, Kircheimbolanden, DE;
Stefan Eisinger, Bornheim, DE;
Assignee:
BorgWarner Inc., Auburn Hills, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 15/00 (2006.01); B23K 26/32 (2014.01); F01D 5/02 (2006.01); F01D 5/06 (2006.01); B23K 26/282 (2014.01); F16D 1/027 (2006.01); B23K 33/00 (2006.01); B23K 26/28 (2014.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
B23K 15/0053 (2013.01); B23K 15/0093 (2013.01); B23K 26/28 (2013.01); B23K 26/282 (2015.10); B23K 26/32 (2013.01); B23K 33/006 (2013.01); B23K 33/008 (2013.01); F01D 5/025 (2013.01); F01D 5/063 (2013.01); F16D 1/027 (2013.01); B23K 2101/001 (2018.08); B23K 2101/003 (2018.08); B23K 2101/006 (2018.08); F05D 2220/40 (2013.01); F05D 2230/233 (2013.01); F05D 2230/234 (2013.01);
Abstract
A turbocharger wheel () and shaft () assembly exhibits a frustoconical geometry of welding zone contact surfaces extending to the outer circumference of the shaft (). This frustoconical geometry not only allows continuous centering of the parts () during joining, it also eliminates the problem of stress propagation along a plane. The location of the electron beam is shifted so that only the radially outer segment of the frustoconical contact surface is joined by welding, leaving a radially inner unmelted and unfused zone for maintaining firm contact of the oblique surfaces.