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:
Oct. 18, 2016
Filed:
Jan. 31, 2013
Applicant:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Inventors:
Mark Vignali, Northfield, CT (US);
Robert M. Pragluski, Springfield, MA (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/10 (2006.01); F01D 11/02 (2006.01); F16J 15/447 (2006.01);
U.S. Cl.
CPC ...
F01D 11/02 (2013.01); F16J 15/4472 (2013.01); F05D 2220/50 (2013.01);
Abstract
A seal shaft for use in an air cycle machine has two axial edges. An axial distance is measured between contact faces at the axial edges, with a tolerance to the dimension. A greatest variation between the axial distance at a plurality of spaced locations on the edge face is maintained with a ratio of the greatest variation to the tolerance being less than 0.2. A rotor assembly, an air cycle machine and a method are also disclosed.