Xylem Europe Gmbh

Itt Manufacturing Enterprises, Inc.

Xylem IP Holdings, LLC

Xylem IP Management S.a R.l.

Gert Hallgren

Tatjana Nechaeva

Måns Bergsten

Staffan Olsson

A submersible electric machine for transporting a liquid, the machine having a hydraulic unit with an impeller, and a drive unit with a housing defining a motor compartment having an electric motor inside. A drive shaft is connected to the electric motor, and extends from the electric motor to the hydraulic unit to a connection with the impeller. A top unit includes a housing defining an electronics chamber separated from the motor compartment by a dividing structural wall. The electronics chamber has a metal partition, having a natural frequency equal to or more than 500 Hz, connected to the top unit housing. A vibration sensor is directly or indirectly connected to the metal partition and monitors vibrations in at least two dimensions at frequencies ranging up to 500 Hz.

Submersible electric machine

A mixer for generating a flow of liquid includes a stationary body, an axially extending drive shaft protruding from the stationary body, a propeller, and a clamping sleeve assembly configured to interconnect the drive shaft and the propeller with each other in order to transmit a rotational motion. The clamping sleeve assembly has an axial clamping length and includes an inner clamping sleeve and an outer clamping sleeve. The inner clamping sleeve has the shape of a tubular wall having an inner surface abutting the drive shaft and an outer surface abutting the outer clamping sleeve and wherein the outer clamping sleeve has the shape of a tubular wall having an inner surface abutting the inner clamping sleeve and an outer surface abutting the propeller. Both the inner surface of the outer clamping sleeve and the outer surface of the inner clamping sleeve are cylindrical along the axial clamping length.

Mixer comprising a clamping sleeve assembly

A guide rail assembly for a submersible machine as well as a guide rail holder for such a guide rail assembly is described herein. The guide rail holder includes a radially extending support body and an axially extending post, which is rigidly connected to the support body and which is adapted to be inserted into an end of the guide rail. An engagement head is connected to the post at a distance from the support body and has a greater radial extension than the post. The engagement head includes a radially expandable member that is adapted to be reversibly manipulated between an active state, in which the expandable member is in engagement with the guide rail, and an inactive state, in which the expandable member is disengaged from the guide rail.

Guide rail assembly as well as guide rail holder

In a first aspect the invention relates to a device for interconnecting a first element () and a second element () to each other in order to transmit a rotational motion. The device () comprises a tubular wall () having a circular inner surface, a part of which that is adjacent to said first end being arranged to abut said first element (), and having a circular outer surface, a part of which that is adjacent to said first end being arranged to abut said second element (). Furthermore, said tubular wall () comprises at least one pair of slits (), which slits () are adjacent to each other and extends from said first end towards said second end, obtaining a finger shaped segment (), which is deflectable in relation to neighboring parts of said tubular wall (). The invention also relates to a pump comprising such a device ().

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Hägersten, Sweden

Gert Hallgren