Verfahren zur Bereitstellung eines Axialen Spalts in einer Schneideranordnung einer Zerkleinererpumpe und eine Zerkleinererpumpe mit einer zur Bereitstellung des Basgten Axialen Spalts Konfigurierte Unterlegscheibe

Details

Veröffentlichungs-Nr.

EP3309401

Aktenzeichen

EP16194137

Anmeldetag

17. Oktober 2016

Veröffentlichung

4. Dezember 2019

Erteilung

4. Dezember 2019

Rechtsraum

EP

IPC

F04D7/04F04D29/62B02C18/00B02C18/18F04D29/22F04D29/20F04D29/70

Abstract

The invention relates to a method for providing an axial gap in a cutter assembly of a grinder pump () in order to secure an operative shearing action at a shearing interface in said cutter assembly. The invention also relates to a shim suitable for providing said axial gap and a grinder pump () comprising such a shim. The grinder pump comprises a cutter wheel (5) connected to and driven in rotation by a drive shaft (16), the cutter wheel (5) comprising a set of cutting edges (13), and a cutter disc (6) stationary connected to a pump housing (3) and having a central hole (24) and a set of cutting holes (12), the drive shaft (16) and the cutter wheel (5) being interconnected via said central hole (24) of the cutter disc (6), wherein the cutter wheel (5) and the cutter disc (6) constitute said cutter assembly. The grinder pump is characterized in that a shim (27), that has a thickness equal to or greater than 0,05 millimeters and equal to or less than 0,15 millimeters and that is manufactured from degradable paper or plastic material, is clamped between the cutter wheel (5) and the cutter disc (6), wherein the grinder pump further comprises a locking member (26) acting against the cutter wheel (5) and the drive shaft (16) and fixating the axial gap between the cutter wheel (5) and the cutter disc (6) provided by said shim (27).

Anmelder

Firmen

Xylem Europe GmbH
Xylem IP Management S.à.r.l.

Land

🇨🇭 Schweiz

Fachgebiete