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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 10480399 B1

PDFFull Text
Date of Patent:
Nov. 19, 2019

Filed:

Dec. 16, 2013

Structure and method for joining nozzle vane and lever, and variable geometry turbocharger

Applicant:

Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara-shi, Kanagawa, JP;

Inventors:

Takashi Arai, Tokyo, JP;

Hitomi Otsubo, Tokyo, JP;

Assignee:

MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Aaron R Eastman

Int. Cl.
CPC ...
F02B 37/24 (2006.01); F02B 39/00 (2006.01); B23K 31/00 (2006.01); F02C 6/12 (2006.01); F01D 5/04 (2006.01); F01D 9/02 (2006.01); F01D 17/16 (2006.01); F02B 33/40 (2006.01); B23K 15/00 (2006.01); B23K 26/28 (2014.01); B23K 26/323 (2014.01); B23K 101/00 (2006.01); B23K 103/04 (2006.01); B23K 103/18 (2006.01);
U.S. Cl.
CPC ...
F02B 37/24 (2013.01); B23K 15/0053 (2013.01); B23K 15/0093 (2013.01); B23K 26/28 (2013.01); B23K 26/323 (2015.10); B23K 31/003 (2013.01); F01D 5/04 (2013.01); F01D 9/02 (2013.01); F01D 17/16 (2013.01); F02B 33/40 (2013.01); F02B 39/00 (2013.01); F02C 6/12 (2013.01); B23K 2101/001 (2018.08); B23K 2103/05 (2018.08); B23K 2103/18 (2018.08); B23K 2103/26 (2018.08); F01D 17/165 (2013.01); F05D 2220/40 (2013.01); F05D 2230/232 (2013.01); F05D 2300/177 (2013.01); Y02T 10/144 (2013.01);
Abstract

An object is to provide a structure and a method of joining a nozzle vane and a lever, and a variable geometry turbocharger, capable of reducing breakage of a welded part between a shaft portion of the nozzle vane and the lever during usage of the same by reducing generation of a hot crack in weld metal at the welded part. A joint structure includes: a nozzle vanedisposed in an exhaust passage for guiding exhaust gas to a turbine wheelof a variable geometry turbocharger, and including a shaft portion; and a leverincluding a fitting surfacefitted with a peripheral surfaceon one end side of the shaft portion, for transmitting torque to the shaft portion to adjust a vane angle of the nozzle vane. Weld metalat a welded partbetween the lever and the nozzle vane is formed so that a center positionof the weld metal is disposed inside a positionof the fitting surface with respect to a radial direction of the shaft portion.

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