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.:

US 7721569 B1

PDF
Full Text
Expired
Date of Patent:
May. 25, 2010

Filed:

Aug. 31, 2006
Applicant:

Dan M. Manole, Tecumseh, MI (US);

Inventor:

Dan M. Manole, Tecumseh, MI (US);

Assignee:

Tecumseh Products Company, Ann Arbor, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/00 (2006.01); F25B 1/00 (2006.01); G05D 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transcritical vapor compression system that includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a compressor, a first heat exchanger, a first capillary tube and a second heat exchanger. The compressor compresses the refrigerant from a low pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit and the second heat exchanger is positioned in a low pressure side of the fluid circuit. The first capillary tube reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. The refrigerant flows through the first capillary tube at its critical velocity and means for controlling the temperature of the refrigerant in the first capillary tube are provided.


Find Patent Forward Citations

Manole, Dan. (2010). Method and apparatus for control of carbon dioxide gas cooler pressure by use of a capillary tube (U.S. Patent No. 7721569). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7721569

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