Global patent index - EP 1042637 A1

EP 1042637 A1 2000-10-11 - DISPLACER ASSEMBLY FOR STIRLING CYCLE SYSTEM

Title (en)

DISPLACER ASSEMBLY FOR STIRLING CYCLE SYSTEM

Title (de)

VERDRÄNGERANORDNUNG FÜR EIN STIRLINGKREISLAUFSYSTEM

Title (fr)

ENSEMBLE DE PISTON DEPLACEUR POUR UN SYSTEME A CYCLE STIRLING

Publication

EP 1042637 A1 (EN)

Application

EP 97949629 A

Priority

US 9721666 W

Abstract (en)

[origin: WO9928685A1] A displacer assembly for a Stirling cycle system includes a displacer (102) and a synchronous linear electric motor (112) linked so as to drive the displacer (102). The electric motor (112) features at least one stator assembly (116) having first and second soft-magnetic pole pieces (118) defining therebetween a gap (120). The width of the gap (120) is oriented perpendicular to an axis of movement of the motor, and the stator assembly is constructed so as to generate a magnetic field aligned primarily parallel to the width of the gap (120). The motor (118) also includes at least one compound permanent magnet system (124) which has a first section (126) axially displaced from a second section (128), and magnetized opposite directions.

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

F25B 9/00; F04B 35/04; F25B 9/14; H01L 25/00; H02K 33/18; H02K 41/00

IPC 8 full level (invention and additional information)

F02G 1/043 (2006.01); F25B 9/14 (2006.01); H02K 33/16 (2006.01); H02K 33/18 (2006.01); H02K 16/00 (2006.01)

CPC (invention and additional information)

F25B 9/14 (2013.01); F02G 1/043 (2013.01); H02K 33/16 (2013.01); F25B 2309/001 (2013.01); H02K 16/00 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9928685 A1 19990610; AU 3587699 A 19990616; EP 1042637 A1 20001011; EP 1042637 A4 20040331; JP 2001525530 A 20011211; TW 429299 B 20010411

INPADOC legal status

2007-12-19 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20070703

2004-03-31 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20040217

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7F 25B 9/00 A

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7H 01L 25/00 B

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7H 02K 41/00 B

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7H 02K 33/18 B

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7F 25B 9/14 B

2004-03-31 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7F 04B 35/04 B

2000-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000529

2000-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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