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Pump assembly

一种泵组件、部件的技术，应用在泵元件、泵、泵装置等方向，能够解决高制造费用等问题

Active Publication Date: 2010-01-13
GRUNDFOS MANAGEMENT AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, forming the contact surfaces on the housing parts requires high manufacturing costs

Method used

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Examples

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Embodiment Construction

[0035] figure 1 The structure of the pump assembly of the present invention is schematically shown. The pump assembly has two stages which are each surrounded on the outside by the housing part 2 . The housing parts 2 are arranged adjacent to one another in the axial direction X. exist figure 1 Attached to the lower housing part 2 is a connecting piece 4 for the connection of the pump stage to a drive motor (not shown here). Furthermore, the connecting piece 4 has an inlet through which the fluid to be conveyed enters the pump or the pump assembly. The fluid is then conveyed through the pump stages in the housing part 2 and exits the pump at the outlet sleeve 6 at the pump head 8 .

[0036] The pump head 8 and the connecting piece 4 are connected to each other by a fastening strap 10 . Furthermore, the fastening strap 10 pulls the pump head 8 and the connection piece 4 towards each other, clamping the housing part 2 between the connection piece 4 and the pump head 8 and k...

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PUM

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Abstract

A pump assembly has a housing formed of at least two metallic housing parts (2) and at least one diffuser (12) arranged in the housing, wherein the diffuser (12) is fixed between the two housing parts in the axial direction, and the two housing parts (2) are directly or indirectly in metallic contact with one another, in a manner such that a force transmission in the axial direction between the housing parts (2) is effected via elements of metal.

Description

technical field [0001] The invention relates to a pump assembly having a housing formed from at least two metal housing parts and at least one guide arranged in the housing. Background technique [0002] In particular, the invention relates to a multistage pump, the housing of which is formed from a plurality of housing parts respectively assigned to each pump stage. Each pump stage has a deflector that directs fluid leaving an impeller to the next impeller. The guide must be fixed to the inside of the housing. It is known that, if the guide is made of metal, said guide is welded in the housing. Furthermore, it is also known that guides made of synthetic material are provided with radially projecting projections, or annular radial projections, which are clamped between adjacent housing parts . For this purpose, in the prior art, enlarged contact surfaces are provided on the shaft ends of the housing parts, which contact the projections of the guide. [0003] However, fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/02F04D29/40
CPCF04D1/063F05D2300/43
Inventor 佩尔·弗雷斯特·韦德斯泰德
Owner GRUNDFOS MANAGEMENT AS
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