The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 16, 2018

Filed:

Aug. 31, 2015
Applicant:

Netzsch Pumpen & Systeme Gmbh, Selb, DE;

Inventors:

Eduardo Nuss, Pomerode/SC, BR;

Arthur Zinke, Pomerode/SC, BR;

Aluisio Loth, /SCPomerode, BR;

Klaus Heizinger, Pomerode/SC, BR;

Lorenz Lessmann, Pomerode/SC, BR;

Sérgio Krahn, Pomerode/SC, BR;

Rui Keunecke, Pomerode/SC, BR;

Silvio Beneduzzi, Blumenau, BR;

Egon Weege, Pomerode/SC, BR;

Nilton André Theilacker, Timbo, BR;

Sidney Guedes, Blumenau, BR;

Petra Lutke, Pomerode/SC, BR;

Robert Kurz, Aschheim, DE;

Josef Strassl, Straubing, DE;

Johann Kreidl, Waldkraiburg, DE;

Hisham Kamal, Waldkraiburg, DE;

Horst Engl, Roth, DE;

George Balcerczyk, Lisle, CA;

Matthias Gradl, Sesslach, DE;

Gunther Herr, Haarth, DE;

André Nijmeh, Merkendorf, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 29/04 (2006.01); F04C 3/08 (2006.01); F04C 15/06 (2006.01); F04C 2/16 (2006.01);
U.S. Cl.
CPC ...
F04C 3/08 (2013.01); F04C 2/165 (2013.01); F04C 15/06 (2013.01); F04C 2240/20 (2013.01); F04C 2240/30 (2013.01); F04C 2240/60 (2013.01); F04C 2250/10 (2013.01); F04C 2250/201 (2013.01);
Abstract

A screw spindle pump for the delivery of fluid media with a pump housing having an inlet channel with a first longitudinal axis, an outlet channel with a second longitudinal axis, a first drive spindle with a third longitudinal axis, and a second driven spindle. The spindles each include a profiled section between the inlet channel and the outlet channel, wherein the profiled sections of the spindles are engaged at least partially with one another and form, with the pump housing between the inlet channel and the outlet channel, a delivery section parallel to the longitudinal axis of the drive spindle with delivery chambers for the fluid medium. The second longitudinal axis of the outlet channel is disposed at an obtuse angle to the delivery section in the pump housing. The invention also relates to a method for operating a screw spindle pump.


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