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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 10337746 B1

PDFFull Text
Date of Patent:
Jul. 02, 2019

Filed:

Dec. 28, 2015

Heat pump

Applicant:

Efficient Energy Gmbh, Feldkirchen, DE;

Inventors:

Holger Sedlak, Sauerlach, DE;

Oliver Kniffler, Munich, DE;

Assignee:

Efficient Energy GmbH, Feldkirchen, DE;

Attorneys:

Michael A. Glenn

Perkins Coie LLP

Primary Examiner:

Ana M Vazquez

Int. Cl.
CPC ...
F25B 1/10 (2006.01); F24D 15/04 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01); F25B 1/053 (2006.01); F25B 30/00 (2006.01); F25B 39/00 (2006.01); F25B 39/02 (2006.01); F25B 27/00 (2006.01); F25B 30/02 (2006.01); F25B 9/00 (2006.01); F25B 30/06 (2006.01); F28D 21/00 (2006.01); F28F 13/08 (2006.01); F28F 21/06 (2006.01);
U.S. Cl.
CPC ...
F24D 15/04 (2013.01); F04D 29/284 (2013.01); F04D 29/30 (2013.01); F25B 1/053 (2013.01); F25B 1/10 (2013.01); F25B 27/00 (2013.01); F25B 30/00 (2013.01); F25B 30/02 (2013.01); F25B 39/00 (2013.01); F25B 39/02 (2013.01); F24D 2200/11 (2013.01); F25B 9/002 (2013.01); F25B 30/06 (2013.01); F28D 2021/007 (2013.01); F28D 2021/0019 (2013.01); F28D 2021/0071 (2013.01); F28F 13/08 (2013.01); F28F 21/06 (2013.01); Y02A 40/965 (2018.01); Y02B 10/40 (2013.01);
Abstract

A heat pump has an evaporator for evaporating water as a working liquid so as to produce a working vapor, the evaporation taking place at an evaporation pressure of less than 20 hPa. The working vapor is compressed to a working pressure of at least 25 hPa by a dynamic-type compressor so as to then be liquefied within a liquefier by direct contact with liquefier water. The heat pump is preferably an open system, wherein water present in the environment in the form of ground water, sea water, river water, lake water or brine is evaporated, and wherein water which has been liquefied again is fed to the evaporator, to the soil or to a water treatment plant.

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