Split can

Patent metadata

Field	Value
Publication number	US-12142986-B2
Application number	US-202017594445-A
Country	US
Kind code	B2
Filing date	Apr 9, 2020
Priority date	Apr 17, 2019
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A split can for a magnetic coupling includes a cylindrical jacket region and a base region connected to a first end of the jacket region. The jacket region has an inner wall and an outer wall enclosing the inner wall. The inner wall and the outer wall are spaced apart from each other in the radial direction by a gap, with the inner wall being integrally joined to the outer wall by a plurality of webs. The gap may be provided with a control medium which may be monitored to detect changes in one or more characteristics of the control medium indicative of split can leakage.

First claim

The invention claimed is:

1. A split can for a magnetic clutch, comprising:
cylindrical integral covering region;
a base region adjoining a first end of the cylindrical integral covering region, wherein
at least the cylindrical integral covering region has an inner wall and an outer wall surrounding the inner wall,
the inner wall and the outer wall are radially spaced apart from each other by gap; and

a plurality of webs are integrally formed with the inner wall and the outer wall.

2. The split can as claimed in claim 1 , wherein
the webs are arranged as connections between the inner wall and outer wall in a peripheral direction and extend in a longitudinal direction, or
the webs are arranged as connections between the inner wall and outer wall in the longitudinal direction and extend in the peripheral direction.

3. The split can as claimed in claim 2 , wherein
the webs are arranged as connections between the inner wall and outer wall intersecting each other in the longitudinal direction and in the peripheral direction and decoupling an inlet and an outlet of the gap via a guiding device.

4. The split can as claimed in claim 3 , wherein
the webs decline in the direction of flanges and are arranged between the inner wall and the outer wall and extend in a peripheral direction.

5. The split can as claimed in claim 1 , wherein
the split can includes a plurality of layers and webs as a homogeneous component.

6. The split can as claimed in claim 1 , wherein
the inner wall is integrally connected to the outer wall by a plurality of multi-dimensional connections and is a homogeneous component.

7. The split can as claimed in claim 1 , wherein
the covering region is formed by an additive method.

8. The split can as claimed in claim 1 , wherein
the base region includes ribs.

9. The split can as claimed in claim 1 , wherein
one or more openings are provided in the outer wall.

10. The split can as claimed in claim 9 , wherein
the one or more openings are two opposing openings.

11. The split can as claimed in claim 9 , wherein
a control medium is arranged within the gap,
a monitoring sensor is configured to monitor a characteristic value of the control medium to sense a change of a characteristic value of the control medium indicative of damage to one or both of the inner wall and the outer wall.

12. The split can as claimed in claim 11 , wherein
the characteristic value is a dew point, an oxygen content, an internal pressure or a conductivity of the control medium.

13. The split can as claimed in claim 1 , wherein
the gap has a width of from 0.5 mm to 3 mm.

14. The split can as claimed in claim 1 , wherein
the split can has a wall thickness of from 0.5 to 8 mm.

15. A magnetic clutch, comprising:
a primary component provided with permanent magnets;
a secondary component provided with permanent magnets; and
a split can arranged between a primary component and secondary component, the split can having
a cylindrical integral covering region;
a base region adjoining a first end of the cylindrical integral covering region,
wherein at least the cylindrical integral covering region has an inner wall and an outer wall surrounding the inner wall,
the inner wall and the outer wall are radially spaced apart from each other by gap, and
a plurality of webs are integrally formed with the inner wall and the outer wall.

16. A method for producing a split can comprising the steps of:
forming the split can integrally by an additive material application, the split can having
a cylindrical integral covering region;
a base region adjoining a first end of the cylindrical integral covering region,
wherein at least the cylindrical integral covering region has an inner wall and an outer wall surrounding the inner wall,
the inner wall and the outer wall are radially spaced apart from each other by gap, and
a plurality of webs are integrally formed with the inner wall and the outer wall.

Assignees

• Ksb Se & Co Kgaa

Inventors

• Buthmann Lukas
• Groeschel Juergen

Classifications

• F04D29/044

  Arrangements for joining or assembling shafts · CPC title

• F04D17/08

  Centrifugal pumps · CPC title

• H02K5/128

  using air-gap sleeves or air-gap discs · CPC title

• H02K49/106 Primary

  with a radial air gap · CPC title

• Y02P10/25

  Process efficiency · CPC title