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.

Date of Patent:
Mar. 13, 2012

Filed:

Dec. 22, 2004
Applicants:

Erwin Oser, Cologne, DE;

Michael Rannow, Lennestadt, DE;

Inventors:

Erwin Oser, Cologne, DE;

Michael Rannow, Lennestadt, DE;

Assignee:

Ecoenergy Patent GmbH, Darmstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01K 25/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of converting heat energy generated in an evaporator to mechanical energy by expanding an evaporated working fluid includes evaporating the working fluid in the evaporator and expanding the evaporated working fluid in an expansion device. The expansion is in a low-pressure expansion device which is formed as a roots blower in which the working fluid is expanded and heat energy is converted to mechanical energy.


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