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:
Sep. 03, 2019
Filed:
Apr. 08, 2016
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Craig M. Beers, Wethersfield, CT (US);
Clarence J. Wytas, Stafford Springs, CT (US);
HAMILTON SUNDSTRAND CORPORATION, Windsor Locks, CT (US);
Abstract
A method for repairing a turbine housing of an air cycle machine that includes removing damaged material from a journal bearing bore of the turbine housing and forming the journal bearing bore. Next, the inner diameter of the journal bearing bore is determined and a cylindrical insert is formed. The cylindrical insert includes a first end, a second end, an inner surface, a step located at the first end, and an outer surface with an outer diameter that provides a diametric interference with the inner diameter of the journal bearing bore. The second end of the cylindrical insert is inserted into an inlet of the journal bearing bore up to the step. The cylindrical insert is secured to the turbine housing and both are stress relieved by heating. Following the stress relief, the inner surface of the cylindrical insert is formed and seal grooves are formed on the inner surface.