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. 16, 2005
Filed:
Jan. 22, 2004
Michael F. Taras, Fayetteville, NY (US);
Alexander Lifson, Manlius, NY (US);
Thomas J. Dobmeier, Phoenix, NY (US);
Michael F. Taras, Fayetteville, NY (US);
Alexander Lifson, Manlius, NY (US);
Thomas J. Dobmeier, Phoenix, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
A refrigerant cycle includes economized tandem compressors. The refrigerant cycle is also provided with a common economizer circuit for all tandem compressors. Common manifolds communicate discharge, suction and economizer return flows within the refrigerant cycle to each of the tandem compressors. Also, an optional unloader function is provided for each of the compressors. Various arrangements allow enhanced operation control, improved system reliability and reduced equipment life-cycle cost.