公开(公告)号：US10760571B2

公开(公告)日：2020-09-01

申请号：US15735836

申请日：2016-06-09

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Mikael Tekneyan ,  Philipp Nübl ,  Stefan Weigl ,  Helmuth Weber ,  Markus Rosam

IPC: F04C15/00 ,  F04C2/107

Abstract: A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft, with a drive shaft receiving portion and a rotor connecting portion arranged at an opposite end of the coupling element from the drive shaft receiving portion, the rotor connecting portion is constituted as a hollow cylinder for receiving a rotor end of the screw pump rotor, wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional center of the hollow cylinder.

公开(公告)号：US20180252211A1

公开(公告)日：2018-09-06

申请号：US15735878

申请日：2016-06-09

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Mikael Tekneyan ,  Philipp Nübl ,  Magdalena Brüning

IPC: F04C2/107 ,  F01C21/10

Abstract: A pump housing for an eccentric screw pump, with a longitudinal axis and a hollow space constituted running axially between a drive-side opening and a pump-side opening, wherein the pump-side opening is enclosed by a main housing body and a lid fastened removably thereto, wherein the main housing body includes a ring segment-shaped axial guiding surface lying opposite the lid.

公开(公告)号：US10767646B2

公开(公告)日：2020-09-08

申请号：US15735878

申请日：2016-06-09

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Mikael Tekneyan ,  Philipp Nübl ,  Magdalena Brüning

IPC: F01C1/10 ,  F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C2/107 ,  F01C21/10

Abstract: A pump housing for an eccentric screw pump, with a longitudinal axis and a hollow space constituted running axially between a drive-side opening and a pump-side opening, wherein the pump-side opening is enclosed by a main housing body and a lid fastened removably thereto, wherein the main housing body includes a ring segment-shaped axial guiding surface lying opposite the lid.

公开(公告)号：USD775236S1

公开(公告)日：2016-12-27

申请号：US29546907

申请日：2015-11-27

Applicant: NETZSCH Pumpen & Systeme GmbH

Designer： Magdalena Brüning ,  Philipp Nübl ,  Mikael Tekneyan ,  Michael Suthmann

公开(公告)号：US20250012277A1

公开(公告)日：2025-01-09

申请号：US18762832

申请日：2024-07-03

Applicant: Netzsch Pumpen & Systeme GmbH

Inventor： Philipp Nübl ,  Stefan Schöberl ,  Thomas Schmitt ,  Thomas Haslberger ,  Stefan Weigl ,  Dominik Sinseder ,  Sophia Laraßer

IPC: F04C15/00 ,  F04C2/16

Abstract: An eccentric screw pump with a rotor of a pump drive shaft circling essentially about a fixed axis relative to a stator in a bearing block, which pump drive shaft is rotationally driven by a motor drive shaft of a motor, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adapts the differences of the motion sequences of the screw conveyor and of the pump drive shaft. There is thereby an air gap between the motor drive shaft and the pump drive shaft, wherein the motor drive shaft supports a motor-side coupling half and the pump drive shaft supports a pump-side coupling half, which are connected to one another in a torque-transmitting manner by means of magnetic forces across the air gap, wherein the air gap is penetrated by a seal, which hermetically separates the motor region from the rest of the eccentric screw pump.

公开(公告)号：US20240352931A1

公开(公告)日：2024-10-24

申请号：US18712858

申请日：2022-11-18

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Dominik Sinseder ,  Philipp Nübl ,  Stefan Weigl ,  Stefan Voit ,  Stefan Schöberl ,  Thomas Schmitt

IPC: F04C2/16

CPC classification number: F04C2/16 ,  F04C2230/20 ,  F04C2240/10

Abstract: The invention relates to an eccentric screw pump, including a rotor, which forms a conveying screw, and a stator, which forms a screw flight and in which the rotor rotates during conveying operation, wherein: the stator includes a stator housing, in which a stator lining is disposed, the stator lining reproducing the screw flight; the stator lining is a sleeve which is supported, at its outer periphery, on the stator housing by means of a support structure which forms cavities; the support structure is designed and dimensioned, in accordance with the location of its connection to the sleeve, in such a way that the supporting effect provided by the support structure is matched to the local needs of the sleeve.

公开(公告)号：US20250012276A1

公开(公告)日：2025-01-09

申请号：US18761808

申请日：2024-07-02

Applicant: Netzsch Pumpen & Systeme GmbH

Inventor： Philipp Nübl ,  Dominik Sinseder ,  Michael Mittermaier ,  Daniel Bürger ,  Stefan Weigl

IPC: F04C15/00 ,  F04C2/107

Abstract: Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

公开(公告)号：US20180180044A1

公开(公告)日：2018-06-28

申请号：US15735836

申请日：2016-06-09

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Mikael Tekneyan ,  Philipp Nübl ,  Stefan Weigl ,  Helmuth Weber ,  Markus Rosam

IPC: F04C15/00 ,  F04C2/107

Abstract: A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft, with a drive shaft receiving portion and a rotor connecting portion arranged opposite, which is constituted as a hollow cylinder for receiving a rotor end, wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional center of the hollow cylinder.