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Support tube for filter element

A filter element and support grid technology, applied in the field of support pipes, can solve problems such as reducing the cross section and increasing the pressure loss of the filter element, and achieves the effect of optimizing rigidity and pressure loss

Active Publication Date: 2017-05-10
MANN HUMMEL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the high loads that may occur partially during assembly and disassembly, the webs of the support grid must have a sufficiently large force-transmitting cross-section, thereby reducing the flow through the through-openings between the webs. cross-section and increases the pressure loss of the filter element

Method used

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  • Support tube for filter element
  • Support tube for filter element

Examples

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Embodiment Construction

[0028] figure 1 with figure 2 An embodiment of the support grid 11 is shown. The supporting grid is configured as a hollow cylindrical supporting tube and preferably has a closed end disk 22 at the first axial end. A thread 17 is provided on the second axial end to be fixed on the filter housing and an annular seal 18 for sealing radially with respect to the filter housing is provided, so that the rough side preferably radially located outside the support tube and It is preferable to form a fine side separation in the inner cavity of the support grid 11. The support grid 11 is formed by webs 12 which are connected to one another in such a way that they preferably form a triangular through opening 13. In the first region 15 adjacent to the first axial end with the closed end disc 22, the tab 12 forms a through opening 13 with a larger cross section, and vice versa at the second axial end with a thread 17 The second area 16 adjacent to or adjacent to it is provided with addit...

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Abstract

The supporting grid (11) has multiple webs, which are partially connected with each other, and a hollow-cylindrical grid structure surrounding in a cylindrical interior space. A center opening cross section of the passage openings (13) is greater in an area adjacent to a first axial end of the support grid than in a second area adjacent to a second axial end of the support grid. A fastening unit has a thread (17) for positive fastening in a filter housing at the second axial end. An independent claim is included for a filter element with star-shaped filter bellows.

Description

Technical field [0001] The invention relates to a support tube according to the preamble of claim 1. Background technique [0002] The document DE 10 2010 010 964 A1 discloses a support grid for filter elements. The support grille has threads on one side to fit on the filter housing, and when screwing in and out, the support grille transmits torque from one end on which the operator rotates to the other end having threads. [0003] In view of part of the high load that may occur during assembly and disassembly, the tabs of the supporting grid must have a sufficiently large cross section for force transmission, thereby reducing the flow through the openings between the tabs The cross section and increase the pressure loss of the filter element. Summary of the invention [0004] The task of the present invention is to provide a support tube which is permanently subjected to torsion stress and bending stress and can produce a small pressure loss. [0005] This task is solved by a supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/24
CPCB01D29/19B01D46/2411B01D2201/0415B01D2265/06B01D46/0005B01D46/2403
Inventor F.舒尔茨B.布克哈特
Owner MANN HUMMEL GMBH