Patent · US Active

Thermodynamic engine

US7520133B2 · kind B2 · utility

13Cited by

4References

14Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Michael Hoetger · Berlin, DE
Herbert Clemens · Munich, DE
Tobias Haas · Cologne, DE
Gunnar Freitag · Berlin, DE
Michael Preis · Königsbrunn, DE
Raymond Freymann · Birkenfeld, DE
Andreas Obieglo · Greer, US

Key dates

Filing date	Jun 20, 2005
Grant date	Apr 21, 2009
Priority date	—
Expiry date	Oct 13, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.

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