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. 24, 1999
Filed:
May. 18, 1998
Jingsong Tang, York, PA (US);
Jay A Kohler, York, PA (US);
York International Corporation, York, PA (US);
Abstract
A pressure-staged absorption refrigeration apparatus having a direct-fired combustion chamber is provided. The refrigeration apparatus includes an evaporator and an absorber operatively connected to the evaporator. A plurality of generators is provided, each generator operatively connected, directly or indirectly, to the absorber. Each generator receives one of a plurality of absorption solution streams and discharges another of the absorption solution streams. Each generator also discharges one of a plurality of refrigerant vapor streams. One generator operates at a first temperature, and one generator operates at a sub-ambient pressure. A plurality of condensers is also provided, each condenser operatively connected to one of the generators from which the condenser receives one of the refrigerant vapor streams. Furthermore, each condenser is operatively connected to the evaporator and discharges one of a plurality of refrigerant liquid streams. A direct-fired combustion chamber for generating combustion gases is provided. The combustion chamber is cooled by one of the absorption solution streams. A piping arrangement transfers heat stored in the combustion gases to the absorption solution stream in the generator operating at the first temperature. A pressure equalization device is operatively connected to the absorption solution stream cooling the combustion chamber to maintain the absorption solution stream cooling the combustion chamber at pressure less than ambient.