Screw pump with at least two parts

US9759214B2 · kind B2 · utility

Assignee

• NETZSCH Pumpen & Systeme GmbH · DE

Inventors

• Eduardo Nuss · Pomerode, BR
• Arthur Zinke · Pomerode, BR
• Aluisio Loth · Pomerode, BR
• Klaus Heizinger · Pomerode, BR
• Lorenz Lessmann · Pomerode, BR
• Sérgio Krahn · Pomerode, BR
• Rui Keunecke · Pomerode, BR
• Silvio Beneduzzi · Blumenau, BR
• Egon Weege · Pomerode, BR
• Nilton André Theilacker · Timbó, BR
• Sidney Guedes · Blumenau, BR
• Petra Lutke · Pomerode, BR
• Robert Kurz · Aschheim, DE
• Josef Strassl · Straubing, DE
• Johann Kreidl · Waldkraiburg, DE
• Hisham Kamal · Waldkraiburg, DE
• Horst Engl · Roth, DE
• George Balcerczyk · Middle Sackville, CA
• Matthias Gradl · Seßlach, DE
• Gunther Herr · Haarth, DE
• André Nijmeh · Merkendorf, DE

Key dates

• Filing date: Aug 27, 2015
• Grant date: Sep 12, 2017
• Expiry date: Oct 20, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C14/26
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A screw spindle pump constituted by at least two parts is disclosed. The first part includes a housing and at least one spindle system disposed in the housing and capable of being driven in a rotational manner. Furthermore, a pressure region disposed downstream of the spindle system and at least one outlet opening which is connected to the pressure region, the outlet opening discharging the delivery medium out of the pressure region. The second part includes at least one low-pressure chamber disposed upstream of the spindle system and at least one inlet opening for the delivery medium into the low-pressure chamber. The first part and the second part are coupled together, preferably in a rotational manner, so that they can assume at least two different relative positions.