Global Patent Index - EP 0980476 A1

EP 0980476 A1 2000-02-23 - DEVICE FOR CONVERTING THERMAL ENERGY TO ELECTRICAL ENERGY

Title (en)

DEVICE FOR CONVERTING THERMAL ENERGY TO ELECTRICAL ENERGY

Title (de)

ANORDNUNG ZUM UMWANDELN VON THERMISCHER IN ELEKTRISCHE ENERGIE

Title (fr)

DISPOSITIF POUR CONVERTIR DE L'ENERGIE THERMIQUE EN ENERGIE ELECTRIQUE

Publication

EP 0980476 A1 (DE)

Application

EP 98932041 A

Priority

  • DE 9801203 W
  • DE 19719190 A

Abstract (en)

[origin: DE19719190A1] The invention relates to a known device for converting thermal energy to electrical energy, comprising a working circuit (2) with a working fluid to drive a turbo-engine (1) and a plurality of heat exchangers (10) alternatively crossflown by a cold and a warm medium, in which an expansion element (9) is arranged that expands or contracts depending on the temperature of the medium. The temperature-dependent expansions and contraction of the expansion element (9) are directly fed to the working circuit (2) by means of a buffer storage. In order to reduce high expenditures for heat isolation of the suction and pressure lines (25, 15), the invention provides that a buffer storage configured as a spring (4) designed to store a force is allocated to each heat exchanger (10), whereby each spring (4) is connected to the piston (12) of a pressure cylinder (11) whose working chamber (13) is connected to the working circuit (2) by means of suction and pressure lines (25, 15) via adjustable valves.

IPC 1-7 (main, further and additional classification)

F03G 7/06

IPC 8 full level (invention and additional information)

F01K 27/00 (2006.01); F02G 5/02 (2006.01); F03G 7/06 (2006.01); H02K 7/18 (2006.01)

CPC (invention and additional information)

F01K 27/005 (2013.01); F02G 5/02 (2013.01); F03G 7/06 (2013.01); H02K 7/1823 (2013.01); Y02T 10/166 (2013.01)

Citation (search report)

See references of WO 9850697A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19719190 A1 19971113; DE 19719190 C2 19990225; AU 8209198 A 19981127; CA 2288632 A1 19981112; EP 0980476 A1 20000223; JP 2001525031 A 20011204; US 6192683 B1 20010227; WO 9850697 A1 19981112

INPADOC legal status


2002-04-17 [18R] REFUSED

- Effective date: 20011119

2001-07-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010522

2000-02-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991102

2000-02-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-02-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL PAYMENT 19991102;LT PAYMENT 19991102;LV PAYMENT 19991102;MK PAYMENT 19991102;RO PAYMENT 19991102;SI PAYMENT 19991102