Global Patent Index - EP 1497542 A1

EP 1497542 A1 20050119 - FREE-PISTON DEVICE PROVIDED WITH AN ELECTRIC LINEAR DRIVE

Title (en)

FREE-PISTON DEVICE PROVIDED WITH AN ELECTRIC LINEAR DRIVE

Title (de)

FREIKOLBENVORRICHTUNG MIT ELEKTRISCHEM LINEARTRIEB

Title (fr)

DISPOSITIF A PISTON LIBRE A ACTIONNEUR LINEAIRE ELECTRIQUE

Publication

EP 1497542 A1 20050119 (DE)

Application

EP 03747110 A 20030423

Priority

  • DE 10219549 A 20020425
  • EP 0304199 W 20030423

Abstract (en)

[origin: WO03091556A1] The invention relates to a universally applicable free-piston device with an electric linear drive (10, 40), comprising at least one piston receiving element (12) with at least one piston device (18) which is arranged in the piston receiving element (12) such that it can be displaced in a linear manner. The piston device (18) comprises a rotor device (46), and a stator device (48) is arranged on the piston receiving element (12). The at least one piston device (18) is driven by the action of a medium which expands in an expansion chamber (36, 38). According to the invention, the piston stroke can be variably adjusted by the linear drive (10, 40) in such a manner that the slack points of the displacement of the piston device (18) can be defined.

IPC 1-7

F02B 71/04; F02B 75/04; H02K 7/18

IPC 8 full level

F02B 71/00 (2006.01); B60K 6/24 (2007.10); B60K 6/26 (2007.10); B60K 6/46 (2007.10); F01B 1/02 (2006.01); F01B 11/00 (2006.01); F02B 71/04 (2006.01); F02B 75/04 (2006.01); F02G 1/02 (2006.01); H02K 7/18 (2006.01)

CPC (source: EP)

B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60K 6/46 (2013.01); F01B 11/00 (2013.01); F01B 11/007 (2013.01); F01B 23/10 (2013.01); F02B 71/04 (2013.01); F02B 75/04 (2013.01); H02K 7/1884 (2013.01); F02B 63/041 (2013.01); Y02T 10/62 (2013.01)

Citation (search report)

See references of WO 03091556A1

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03091556 A1 20031106; AU 2003232496 A1 20031110; DE 10219549 A1 20031204; DE 10219549 B4 20040311; EP 1497542 A1 20050119; JP 2005524016 A 20050811; JP 4656840 B2 20110323

DOCDB simple family (application)

EP 0304199 W 20030423; AU 2003232496 A 20030423; DE 10219549 A 20020425; EP 03747110 A 20030423; JP 2003588067 A 20030423