Pumpe für ein Fluid

Details

Veröffentlichungs-Nr.

EP3486491

Aktenzeichen

EP18200678

Anmeldetag

16. Oktober 2018

Veröffentlichung

30. September 2020

Erteilung

30. September 2020

Rechtsraum

EP

IPC

F04D1/06F04D29/08

Abstract

The present invention relates to a pump (10) for fluids. The pump comprising: a pump housing (11); a power source (8); a drive shaft (6) connected to the power source (8) and extending along an axis A; a fluid inlet (14); a first impeller (22) rotated by said drive shaft and comprising a first impeller inlet (221) in fluid connection with the fluid inlet, and a first impeller outlet; a second impeller (23) rotated by said drive and comprising a second impeller inlet (231) in fluid connection with the first impeller outlet, and a second impeller outlet; and a sealing element (30) stationary arranged in relation to the drive shaft and first and second impeller, said sealing element is sleeve shaped and arranged between the first and second impeller around the drive shaft, said sealing element has a first end (32) transvers to the drive shaft and facing the first impeller and a second end (33) transverse to the drive shaft facing the second impeller, said sealing element has a length along axis A smaller than the distance between the first and second impeller such that the sealing element is movable along axis A between the first and second impeller, wherein the first end (32) of the sealing element has a first area (35) transverse to axis A and the second end (33) has a second area (36) transverse to axis A, and said first area is larger than said second area such that the force exerted by the lower pressure generated by the first impeller and the first area is substantially equal to the force exerted by the higher pressure generated by the second impeller and the second area.

Anmelder

Firma

Sulzer Management AG

Land

🇨🇭 Schweiz

Fachgebiete