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:
Jun. 10, 1997
Filed:
Sep. 28, 1995
William J Plzak, Crescent, MN (US);
Daoud A Jandal, LaCrosse, WI (US);
Jeffrey S Seewald, Onalaska, WI (US);
Gas Research Institute, Chicago, IL (US);
Abstract
A purge apparatus and method are disclosed for automatically purging an absorption cooling system. Noncondensible gas is drawn out of the absorber of the absorption cooling system by an eductor. The eductor entrains the gas in the fluid flow to the high pressure side of the system. The gas is drawn out of the high pressure side by a separate purge refrigeration system. The evaporator of the purge refrigeration system is located in a purge tank that is in free flow communication with the condenser of the absorption cooling system. Refrigerant vapor and intermixed noncondensible gas flow into the purge tank and the refrigerant vapor condenses on the purge refrigeration system evaporator. The condensed absorption refrigerant is returned to the absorption cooling system. The noncondensible gas collects in the purge tank and blankets the evaporator of the purge refrigeration system, causing the temperature of the purge refrigerant to decrease. At a specified temperature, a temperature sensor initiates a pump out of the noncondensible gas in the purge tank.