Title:
METHOD AND HEAT ENGINE FOR MAKING WASTE HEAT OR GEOTHERMAL HEAT USABLE FOR PRODUCING ELECTRICAL ENERGY
Document Type and Number:
WIPO Patent Application WO/2015/165581
Kind Code:
A3
Abstract:
The invention relates to a method and to a heat engine for producing electrical energy from heat at a relatively low initial temperature level, particularly waste heat, geothermal heat, or environmental heat, wherein a heat-transfer medium laden with heat is squirted or sprayed into a cylinder chamber (4) containing a working gas in order to move a piston that can be displaced in the cylinder, wherein the piston motion is converted into electric current by means of piezoelectric blocks (3), which are arranged in a stationary manner and interact with the lateral piston surface (11), and wherein liquid and/or gaseous heat-transfer medium can be used and the working gas is cooled back down after the working cycle.
Inventors:
RICHTER HANS (DE)
Application Number:
PCT/EP2015/000861
Publication Date:
December 23, 2015
Filing Date:
April 27, 2015
Export Citation:
Assignee:
RICHTER BERTA (DE)
International Classes:
F01K7/36; F01K11/00; F01K21/02; F01K27/00
Domestic Patent References:
| WO2014187558A2 | 2014-11-27 | |||
| WO2011088821A2 | 2011-07-28 | |||
| WO2007068441A1 | 2007-06-21 |
Foreign References:
| EP2711509A2 | 2014-03-26 | |||
| US4393653A | 1983-07-19 | |||
| US3608311A | 1971-09-28 |
Attorney, Agent or Firm:
GALLO, Wolfgang (Obergriesbach, DE)
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