Global Patent Index - EP 0883443 A1

EP 0883443 A1 19981216 - DECANTER CENTRIFUGE, GEAR BOX AND OPERATING METHOD

Title (en)

DECANTER CENTRIFUGE, GEAR BOX AND OPERATING METHOD

Title (de)

DEKANTIERZENTRIFUGE, GETRIEBE UND VERFAHREN ZUM BETRIEB

Title (fr)

DECANTEUSE-CENTRIFUGEUSE, BOITE D'ENGRENAGES ET PROCEDE DE FONCTIONNEMENT

Publication

EP 0883443 A1 19981216 (EN)

Application

EP 97914798 A 19970221

Priority

  • US 9702989 W 19970221
  • US 60731696 A 19960226

Abstract (en)

[origin: WO9730791A1] A decanter centrifuge assembly comprises a bowl (12), a screw conveyor (14) disposed inside the bowl for rotation at a speed different from an angular velocity of the bowl, and a harmonic drive unit (35) including a circular spline (16) drivingly connected to the conveyor. The harmonic drive unit further includes a flexible spline (26) drivingly connected to the bowl and a wave generator (34) disposed in contact with the flexible spline for distorting the flexible spline and enabling a driving of the flexible spline at a rate of rotation incrementally differing from a rate of rotation of the circular spline. The flexible spline has teeth partially meshing with teeth on the circular spline.

IPC 1-7

B04B 1/20; F16H 49/00

IPC 8 full level

B04B 1/20 (2006.01); F16H 49/00 (2006.01)

CPC (source: EP)

B04B 1/2016 (2013.01); F16H 49/001 (2013.01); B04B 2001/2025 (2013.01)

Citation (search report)

See references of WO 9730791A1

Designated contracting state (EPC)

DE DK FR GB IT

DOCDB simple family (publication)

WO 9730791 A1 19970828; AU 2191997 A 19970910; EP 0883443 A1 19981216

DOCDB simple family (application)

US 9702989 W 19970221; AU 2191997 A 19970221; EP 97914798 A 19970221