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. 26, 2024
Filed:
Feb. 08, 2022
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
Mark J. Robuck, Chadds Ford, PA (US);
Scott H. Bouwer, Wilmington, DE (US);
John C. Walters, Glen Mills, PA (US);
Steve G. Mackin, Bellevue, WA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/02 (2006.01); F04D 27/00 (2006.01); F04D 29/063 (2006.01); B64D 13/06 (2006.01);
U.S. Cl.
CPC ...
F04D 25/028 (2013.01); F04D 27/004 (2013.01); F04D 27/007 (2013.01); F04D 29/063 (2013.01); B64D 13/06 (2013.01);
Abstract
Compressors having multi-speed gearboxes are disclosed. The apparatus comprises: a fluid channel to convey a fluid, a compressor fluidly coupled to the fluid channel, a gearbox operatively coupled to the compressor, the gearbox to control the compressor using a first gear ratio and a second gear ratio different from the first gear ratio to vary a flow rate of fluid in the fluid channel, and clutches to vary the gearbox between the first gear ratio and the second gear ratio.