Patent · US Active

Heat pump for using environmentally compatible coolants

US11473819B2 · kind B2 · utility

0Cited by

6References

3Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Bernd Gromoll · Baiersdorf, DE
Florian Reissner · Nuremberg, DE

Key dates

Filing date	May 16, 2014
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Feb 21, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2700/21152
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A heat pump includes an internal heat exchanger and a regulating device designed to bring the temperature of the working fluid at the outlet of a compressor to a specifiable minimum difference above the dew point at the same pressure. This allows the use of novel coolants in heat pumps, e.g., coolants having a low dew line slope of under 1000/kJ in the temperature-entropy diagram and characterized by very good safety and environmental properties.

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