Global Patent Index - EP 1733147 A2

EP 1733147 A2 20061220 - STATOR FOR AN ECCENTRIC SPIRAL PUMP OR AN ECCENTRIC WORM MOTOR ACCORDING TO THE MOINEAU PRINCIPLE

Title (en)

STATOR FOR AN ECCENTRIC SPIRAL PUMP OR AN ECCENTRIC WORM MOTOR ACCORDING TO THE MOINEAU PRINCIPLE

Title (de)

STATOR FÜR EINE EXZENTERSCHNECKENPUMPE ODER EINEN EXZENTERSCHNECKENMOTOR NACH DEM MOINEAU-PRINZIP

Title (fr)

STATOR POUR UNE POMPE A VIS SANS FIN EXCENTRIQUE OU UN MOTEUR A VIS SANS FIN EXCENTRIQUE SELON LE PRINCIPE MOINEAU

Publication

EP 1733147 A2 20061220 (DE)

Application

EP 04803161 A 20041117

Priority

  • EP 2004013029 W 20041117
  • US 72596703 A 20031117

Abstract (en)

[origin: US2005106004A1] The invention relates to a stator for an eccentric screw pump or an eccentric worm motor having a stator, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the spiral of the stator has one spiral more than does the motor. To provide a stator that also remains functional under conditions where the fixed connection between the lining and the outer tube would be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes that an inner tube provided with apertures is disposed in the lining, and that spacing strips are disposed between outer tube and inner tube.

IPC 8 full level

F04C 2/107 (2006.01)

CPC (source: EP)

F04C 2/1075 (2013.01)

Citation (search report)

See references of WO 2005047701A2

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

US 2005106004 A1 20050519; US 7316548 B2 20080108; BR PI0416634 A 20070116; CA 2473282 A1 20050517; CA 2473282 C 20100413; EP 1733147 A2 20061220; EP 1733147 B1 20161228; WO 2005047701 A2 20050526; WO 2005047701 A3 20050707

DOCDB simple family (application)

US 72596703 A 20031117; BR PI0416634 A 20041117; CA 2473282 A 20040708; EP 04803161 A 20041117; EP 2004013029 W 20041117