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:
Aug. 05, 2025
Filed:
May. 28, 2024
Copeland Industrial Lp, St. Louis, MO (US);
Jean-Louis Picouet, Waukesha, WI (US);
Steven Fels, West Allis, WI (US);
Abhijit Pande, Pune, IN;
Pallavi Narkhede, Pune, IN;
Abstract
Slide valve assemblies are provided that have volume slide valve members that are self-positioning, as well as compressors that include such slide-valve assemblies. The self-positioning volume slide valve member automatically slidably adjusts to control compressor volume ratio and power input to the compressor during operation of the compressor. A volume slide valve balance piston is connected to discharge gasses of the compressor and by a valve to suction gasses of the compressor. The volume slide valve balance piston exerts a balance piston pressure force on the volume slide valve member that is equal to a discharge pressure force when the valve is closed, and a balance piston pressure force that is the result of the combined pressure of the discharge gasses and suction gasses when the valve is open.