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:
Nov. 19, 2019
Filed:
Sep. 14, 2015
Applicant:
Trane International Inc., Piscataway, NJ (US);
Inventors:
H. Kenneth Ring, Jr., Houston, MN (US);
Jon P. Hartfield, La Crosse, WI (US);
Todd A. Michael, West Salem, WI (US);
Assignee:
TRANE INTERNATIONAL INC., Davidson, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
F28F 13/12 (2006.01); F28F 1/42 (2006.01); F28F 13/18 (2006.01);
U.S. Cl.
CPC ...
F28F 13/12 (2013.01); F28F 1/422 (2013.01); F28F 13/187 (2013.01); F28F 2001/428 (2013.01);
Abstract
A heat exchange tube combines an external surface feature, for example having crushed fins and cavities, which can have very high boiling enhancement characteristics, with an internal surface feature, for example having high performing intersecting helices, e.g. 'cross hatched' with an intersecting helix angle. The new tube can provide a high performing tube in a shell and tube evaporator that can be relatively smaller, more efficient, and that can use relatively lower refrigerant charge.