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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 11852145 B1

PDFFull Text
Date of Patent:
Dec. 26, 2023

Filed:

Dec. 27, 2019

Rotary compressors with variable speed and volume control

Applicant:

Trane International Inc., Davidson, NC (US);

Inventors:

Jay H. Johnson, Houston, MN (US);

John R. Sauls, La Crosse, WI (US);

Gordon Powell, Stoddard, WI (US);

Daniel R. Crum, Huntersville, NC (US);

Assignee:

Trane International, Inc., Davidson, NC (US);

Attorney:

Taft Stettinius & Hollister LLP

Primary Examiner:

Dominick L Plakkoottam

Int. Cl.
CPC ...
F04C 29/12 (2006.01); F04C 28/14 (2006.01); F04C 28/12 (2006.01); F04C 28/28 (2006.01); F04C 28/24 (2006.01); F04C 28/08 (2006.01); F04C 18/16 (2006.01); F25B 1/047 (2006.01); F25B 49/02 (2006.01);
U.S. Cl.
CPC ...
F04C 29/124 (2013.01); F04C 18/16 (2013.01); F04C 28/08 (2013.01); F04C 28/12 (2013.01); F04C 28/14 (2013.01); F04C 28/24 (2013.01); F04C 28/28 (2013.01); F25B 1/047 (2013.01); F25B 49/022 (2013.01); F04C 2240/403 (2013.01); F04C 2240/81 (2013.01); F04C 2270/025 (2013.01); F04C 2270/585 (2013.01); F25B 2600/0253 (2013.01);
Abstract

Systems and methods are used to control operation of a rotary compressor of a refrigeration system to improve efficiency by varying the volume ratio and the speed of the compressor in response to current operating and load conditions. The volume of the axial and/or radial discharge ports of the compressor can be varied to provide a volume ratio corresponding to operating conditions. In addition, permanent magnet motors and/or control of rotor tip speed can be employed for further efficiency gains.

Find Patent Forward Citations

Johnson, Jay. (2023). Rotary compressors with variable speed and volume control (U.S. Patent No. 11852145). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11852145

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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