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:
May. 23, 2017
Filed:
Jul. 30, 2010
William L. Kopko, Jacobus, PA (US);
Israel Federman, York, PA (US);
Satheesh Kulankara, York, PA (US);
Andrew John Graybill, Etters, PA (US);
William L. Kopko, Jacobus, PA (US);
Israel Federman, York, PA (US);
Satheesh Kulankara, York, PA (US);
Andrew John Graybill, Etters, PA (US);
Johnson Controls Technology Company, Holland, MI (US);
Abstract
A refrigeration system is provided, such as for use with chillers. The system uses a tube-side condenser, such as a microchannel condenser, along with a shell-side evaporator such as a falling film evaporator. A flash tank economizer is disposed between the condenser and the evaporator, and an inlet valve to the flash tank is controlled based upon subcooling of condensate from the condenser. The vapor exiting the flash tank may be fed via an economizer line to a system compressor. Liquid phase refrigerant combined with some gas phase refrigerant exits the flash tank and is directed through an orifice before entering the evaporator.