Global Patent Index - EP 3251739 A1

EP 3251739 A1 20171206 - STIRRING IMPELLER AND STIRRING DEVICE

Title (en)

STIRRING IMPELLER AND STIRRING DEVICE

Title (de)

RÜHRLAUFRAD UND RÜHRVORRICHTUNG

Title (fr)

TURBINE DE BRASSAGE ET DISPOSITIF DE BRASSAGE

Publication

EP 3251739 A1 20171206 (EN)

Application

EP 16172082 A 20160531

Priority

EP 16172082 A 20160531

Abstract (en)

An object of the present invention is to provide a stirring impeller and a stirring device capable of reducing power required for stirring. Provided are an axial stirring impeller 1 including a plurality of blades 3 arranged at intervals in a rotational direction with reference to the central axis of rotation, and a stirring device including the stirring impeller 1. Each of the plurality of blades 3 has a front portion with reference to at least the rotational direction R inclined to a plane orthogonal to the central axis of rotation in a cross section in the rotational direction R at an angle ¸1 of 20° to 40° toward a front end edge 3a, and each of the plurality of blades 3 includes a tapered portion 31 tapered to have a tip angle of 30° to 50° in the cross section in the rotational direction R, on the front end edge 3a with reference to the rotational direction R.

IPC 8 full level

B01F 7/00 (2006.01)

CPC (source: EP)

B01F 7/0025 (2013.01); B01F 7/00341 (2013.01); B01F 2215/0422 (2013.01)

Citation (applicant)

JP H10337461 A 19981222 - UBE INDUSTRIES

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3251739 A1 20171206

DOCDB simple family (application)

EP 16172082 A 20160531