Patent · US Active

Heat pump

US9222483B2 · kind B2 · utility

0Cited by

17References

3Claims

0Family size

Assignee

EFFICIENT ENERGY GMBH · DE

Inventors

Holger Sedlak · Hersbruck, DE
Oliver Kniffler · Sauerlach, DE

Key dates

Filing date	Oct 22, 2010
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Apr 27, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B10/40
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.