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:
Jul. 24, 2018
Filed:
Nov. 18, 2014
Applicant:
Thermolift, Inc., Stony Brook, NY (US);
Inventor:
Peter Hofbauer, West Bloomfield, MI (US);
Assignee:
ThermoLift, Inc., Stony Brook, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 9/00 (2006.01); F25B 9/14 (2006.01); F25B 30/00 (2006.01); F02G 1/043 (2006.01);
U.S. Cl.
CPC ...
F25B 9/14 (2013.01); F02G 1/0435 (2013.01); F25B 30/00 (2013.01); F02G 2243/02 (2013.01); F02G 2280/10 (2013.01);
Abstract
A four-process cycle is disclosed for a Vuilleumier heat pump that has mechatronically-controlled displacers. Vuilleumier heat pumps that use a crank to drive the displacers have been previously developed. However, mechatronic controls provides a greater degree of freedom to control the displacers. The four-process cycle provides a higher coefficient of performance than prior cycles in the crank-driven Vuilleumier heat pump and those previously disclosed for a mechatronically-driven Vuilleumier heat pump.