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:
Jul. 10, 2018
Filed:
Jul. 24, 2015
Applicant:
Johnson Controls Technology Company, Holland, MI (US);
Inventors:
William L. Kopko, Jacobus, PA (US);
Andrew John Graybill, Hellam, PA (US);
Glenn Eugene Nickey, New Oxford, PA (US);
Israel Federman, York, PA (US);
Satheesh Kulankara, York, PA (US);
Assignee:
Johnson Controls Technology Company, Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); A63B 57/00 (2015.01); F25B 41/00 (2006.01); F25B 1/06 (2006.01); F25B 1/10 (2006.01);
U.S. Cl.
CPC ...
F25B 49/022 (2013.01); A63B 57/00 (2013.01); F25B 1/06 (2013.01); F25B 1/10 (2013.01); F25B 41/00 (2013.01); F25B 49/025 (2013.01); F25B 2341/0662 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01); F25B 2600/01 (2013.01); F25B 2600/02 (2013.01); F25B 2600/2509 (2013.01); F25B 2700/04 (2013.01); F25B 2700/151 (2013.01); F25B 2700/171 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/2101 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21156 (2013.01); F25B 2700/21173 (2013.01);
Abstract
A method for controlling an economizer circuit is provided. The economizer circuit includes a valve to regulate refrigerant flow between the economizer and the compressor. The valve can be opened to engage the economizer circuit or closed to disengage the economizer circuit based on the output frequency provided to the compressor motor by a variable speed drive and an operating condition of the economizer.