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:
Apr. 08, 2008
Filed:
May. 27, 2005
Applicants:
Curtis Christian Crane, York, PA (US);
Frank Highland Hill, Iv, York, PA (US);
Glenn Eugene Nickey, New Oxford, PA (US);
Inventors:
Curtis Christian Crane, York, PA (US);
Frank Highland Hill, IV, York, PA (US);
Glenn Eugene Nickey, New Oxford, PA (US);
Assignee:
York International Corporation, York, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/00 (2006.01); F25B 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A control algorithm for controlling an economizer circuit in a chiller system is provided. The control algorithm opens and closes a port valve in the economizer circuit in response to predetermined criteria to engage and disengage the economizer circuit. The predetermined criteria can include an operating parameter of a compressor and a level of liquid refrigerant in a flash tank.