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. 22, 2022
Filed:
Aug. 11, 2019
Applicant:
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Inventors:
Robert A Ress, Jr., Carmel, IN (US);
Stephen M Brooks, Jupiter, FL (US);
Assignee:
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/02 (2012.01); F02C 7/36 (2006.01); F16H 57/00 (2012.01); B23F 1/02 (2006.01); B23K 31/02 (2006.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); B23F 1/02 (2013.01); B23K 31/02 (2013.01); F16H 57/0025 (2013.01); B23K 2101/001 (2018.08); B23K 2101/008 (2018.08); F05D 2230/232 (2013.01); F05D 2260/4031 (2013.01);
Abstract
A lay shaft assembly for a speed reduction gearbox in a geared turbofan gas turbine engine, the lay shaft assembly having an output gear formed on a lay shaft as a single piece, and an input welded gear formed as a separate piece that is welded to the shaft in close proximity to the output gear. The output gear is machined and precision-ground prior to welding the input welded gear to the lay shaft so that the two gears can be located in close proximity. The input welded gear is precision-ground after the gear has been welded to the shaft.