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. 22, 2023
Filed:
Jun. 08, 2021
Dresser-rand Company, Houston, TX (US);
Joel T. Sanford, Bath, NY (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
An inlet valve system (), as may be used for a cylinder chamber () of a compressor, such as a reciprocating compressor, is disclosed. A plurality of inlet valves () is movable between an open position and a closed position. The plurality of inlet valves is arranged between an unloader chamber () and a cylinder chamber () of the compressor. A control valve (') is coupled to a controller () and is movable between a first position and a second position to close the inlet valves. A check valve (′) is movable between a first position and a second position to open the inlet valves. The check valve and the control valve are respectively fluidly coupled to a control chamber (), which is decoupled from any pressure control external to cylinder chamber ().