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.

Date of Patent:
Jan. 02, 2024

Filed:

Feb. 25, 2019
Applicant:

Regi U.s., Inc., Spokane, WA (US);

Inventors:

Paul W. Chute, Spokane, WA (US);

Allen MacKnight, Spokane, WA (US);

Lynn Petersen, Spokane, WA (US);

Paul Porter, Colbert, WA (US);

Assignee:

Regi U.S., Inc., Spokane, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 11/04 (2006.01); F25B 9/06 (2006.01); F25B 1/10 (2006.01); F25B 9/00 (2006.01); F25B 1/04 (2006.01); F25B 1/00 (2006.01);
U.S. Cl.
CPC ...
F25B 11/04 (2013.01); F25B 1/10 (2013.01); F25B 9/00 (2013.01); F25B 9/06 (2013.01); F25B 1/00 (2013.01); F25B 1/04 (2013.01); F25B 9/008 (2013.01); F25B 2309/004 (2013.01); F25B 2309/005 (2013.01); F25B 2400/14 (2013.01);
Abstract

A modified two-phase refrigeration cycle compresses a working fluid, condenses the working fluid into a saturated or supercooled liquid, expands the saturated or supercooled liquid into a two-phase fluid, and evaporates the two-phase working fluid. The modified two-phase refrigeration cycle reduces irreversibilities imposed by conventional refrigeration cycles and extracts energy from the working fluid during the expansion process. For instance, a system that employs the modified two-phase refrigeration cycle includes a two-phase expander to reduce irreversibilities during an expansion process and extract energy. In some instances, the system includes a two-phase compressor to compress two-phase fluids for varying loads and environmental conditions of the system.


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