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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.:

US 10422016 B1

PDFFull Text
Date of Patent:
Sep. 24, 2019

Filed:

Aug. 11, 2016

Tooling for stress relieving a turbine wheel and shaft

Applicant:

Garrett Transportation I Inc., Torrance, CA (US);

Inventors:

Angelo Prior, Mozzagrogna-Chieti, IT;

Maurizio Barbone, Atessa-Chieti, IT;

Assignee:

Garrett Transportation I Inc., Torrance, CA (US);

Attorney:

The Law Office of John A. Griecci

Primary Examiner:

Hung D Nguyen

Int. Cl.
CPC ...
H05B 6/10 (2006.01); C21D 9/50 (2006.01); C21D 1/30 (2006.01); C21D 1/42 (2006.01); C21D 9/28 (2006.01); F01D 5/02 (2006.01); F01D 25/12 (2006.01); F01D 25/16 (2006.01); F01D 5/06 (2006.01); H05B 6/36 (2006.01); B23P 15/00 (2006.01); C21D 1/10 (2006.01); C21D 1/26 (2006.01);
U.S. Cl.
CPC ...
C21D 9/505 (2013.01); C21D 1/30 (2013.01); C21D 1/42 (2013.01); C21D 9/28 (2013.01); F01D 5/02 (2013.01); F01D 5/063 (2013.01); F01D 25/12 (2013.01); F01D 25/16 (2013.01); H05B 6/101 (2013.01); B23P 15/006 (2013.01); C21D 1/10 (2013.01); C21D 1/26 (2013.01); F05D 2220/40 (2013.01); F05D 2230/233 (2013.01); F05D 2230/234 (2013.01); F05D 2240/60 (2013.01); F05D 2260/83 (2013.01); Y02P 10/253 (2015.11);
Abstract

A tool system for stress relieving a turbocharger turbine wheel longitudinally welded to a hardened rotor shaft. The shaft has a journal bearing region and a turbine-end body forming an A datum surface for receiving an axial bearing. The tool system includes an induction coil and an electronic oscillator, and a tool. The tool forms an opening configured to receive the rotor shaft such that the journal bearing region of the shaft extends into the tool housing while the A datum surface adjoins an end of the tool housing. The induction coil is positioned around the turbine-end body. The housing forms an annular cooling chamber surrounding the journal bearing region of the shaft. The housing forms an inlet passage to provide cooling fluid to the annular chamber, and an outlet passage to remove cooling fluid from the annular chamber.

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