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(12) United States Patent ao) Patent No.: us 6,393,851 Bi

Wightman (45) Date of Patent: May 28,2002

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OTHER PUBLICATIONS

Pending International Application No. PCT/US00/14648 entitled Vapor Compression System and Method International Filing Date: May 26, 2000 (our docket: 9713/14). Pending U.S. application No. 09/661,478 entitled Evaporator Coil With Multiple Orifices filed Sep. 14, 2000 (our docket: 9713/15).

Pending U.S. application No. 09/661,477 entitled Expansion Device For Vapor Compression System filed Sep. 14, 2000 (our docket: 9713/16).

Pending U.S. application No. 09/228,696 entitled Vapor Compression System and Method filed Jan. 12, 1999 (our docket: 9713/3).

Pending U.S. application No. 09/431,830 entitled Vapor Compression System and Method filed Nov. 2, 1999 (our docket: 9713/4).

(List continued on next page.)

Primary Examiner—-William Wayner

(74) Attorney, Agent, or Firm—Brinks Hofer Gilson &

Lione

(57) ABSTRACT

A vapor compression system including a compressor, a condenser, an expansion valve, and an evaporator. The compressor increases the pressure and temperature of a heat transfer fluid. The condenser is connected with the compressor for liquefying the heat transfer fluid. The expansion valve is connected with the condenser and includes an expansion device for expanding the heat transfer fluid, and an internal sensor for detecting conditions within the heat transfer fluid. The evaporator is connected with the expansion valve for transferring heat from ambient surroundings to the heat transfer fluid.

6 Claims, 14 Drawing Sheets

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