Filter device, in particular liquid filter

Patent metadata

Field	Value
Publication number	US-9486724-B2
Application number	US-201213713869-A
Country	US
Kind code	B2
Filing date	Dec 13, 2012
Priority date	Jun 14, 2010
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A filter device has, in a housing, a filter element and, downstream of the filter element, an outflow opening for discharging the cleaned medium. Between the filter element and the outflow opening there is arranged a diverting part, wherein on the diverting part there is formed an overflow region for the flow of the medium from the filter element to the outflow opening, and the outflow opening is situated at the same level as or below the overflow region.

First claim

We claim:

1. A filter device, comprising:
a filter element to filter a medium, the filter element having a dirty side and a clean side and a top axial end and opposing bottom axial end;
a filter housing into which the filter element is received, the filter housing including
an outflow channel member enclosing an axially extending outflow passage, the outflow channel member and passage extending axially into an interior of the filter element, the outflow passage for filtered fluid to leave the filter device;
an outflow opening extending radially through a wall of the outflow channel member into the outflow passage, the outflow opening arranged downstream of the filter element discharging purified medium into the outflow passage of the outflow channel member, the outflow opening having an upper edge;
wherein the outflow opening is arranged within the interior of the filter element and spaced axially inwardly away from the top and the bottom axial ends of the filter element;

a diverting part is arranged between the filter element and the outflow opening;
wherein the diverting part extends axially upwardly away from the bottom axial end and terminates at a diverting part upper end positioned below the top axial end of the filter element;
wherein the diverting part is embodied an annular blockade wall having an annular upper end face edge spaced radially outwardly from and extending circumferentially around the outflow channel member;
wherein the overflow region is formed at the annular upper end face edge of the annular blockade wall;
wherein, as the diverting part terminates below the top axial end of the filter element, open space starting at the annular upper end face edge and below the top axial end of the filter element forms the overflow region permitting flow to flow over the annular upper end face edge of the diverting part from the clean side of the filter element to the outflow opening;
wherein the outflow opening is spaced radially inwardly away from a radial inner side of the diverting part;
wherein the outflow channel member radially completely encloses the axially extending outflow passage from the bottom axial end of the filter element UP to the outflow opening, allowing fluid flow to enter the outflow passage only at the outflow opening and
wherein the outflow opening is arranged at or near the annular upper end face edge and away from the bottom axial end of the filter element, wherein the upper edge of the outflow opening is arranged at the same axial height or slightly below the overflow region.

2. The filter device according to claim 1 , wherein
the diverting part is spaced apart from the clean side of the filter element.

3. The filter device according to claim 1 , wherein
the diverting part is positioned immediately at the clean side of the filter element.

4. The filter device according to claim 1 , wherein
the filter element is secured on a support part; and
wherein the diverting part is formed separate from the support part.

5. The filter device according to claim 1 , wherein
the filter element is secured directly onto a support part; and
wherein the diverting part is formed monolithically with the support part as a one-piece unitary component.

6. The filter device according to claim 1 , wherein
a separation component for particles or droplets to be separated is arranged between the diverting part and the outflow opening.

7. The filter device according to claim 6 , wherein
the separation component is embodied as a screen.

8. The filter device according to claim 1 , wherein
a drain opening draining separated droplets is arranged below the outflow opening.

9. The filter device according to claim 1 , wherein
the filter element and the diverting part each are of an annular configuration.

10. A filter device, comprising:
a filter element to filter a medium, the filter element having a dirty side and a clean side and a top axial end and opposing bottom axial end;
a filter housing into which the filter element is received, the filter housing including
an outflow channel member formed as an axially extending annular wall circumferentially enclosing within an axially extending outflow passage, the outflow channel member and passage extending axially into an interior of the filter element, the outflow passage for filtered fluid to leave the filter device;
an outflow opening extending radially through the annular wall of the outflow channel member into the outflow passage, the outflow opening arranged downstream of the filter element discharging purified medium into the outflow passage of the outflow channel member, the outflow opening having an upper edge;
wherein the outflow opening is arranged within the interior of the filter element and spaced axially inwardly away from the top and the bottom axial ends of the filter element;

a tubular diverting part is arranged between the filter element and the outflow opening;
wherein the tubular diverting part is embodied an annular blockade wall having an annular upper end face edge spaced radially outwardly from and extending circumferentially around the outflow channel member;
wherein an overflow region is formed at the annular upper end face edge of the annular blockade wall;
wherein the tubular diverting part extends axially upwardly away from the bottom axial end and terminates at the annular upper end face edge positioned below the top axial end of the filter element;
wherein, open space starting at the annular upper end face edge and below the top axial end of the filter element forms the overflow region permitting flow to flow over the annular upper edge of the tubular diverting part from the clean side of the filter element to the outflow opening;
wherein the outflow channel member radially completely encloses the axially extending outflow passage from the bottom axial end of the filter element UP to the outflow opening, allowing fluid flow to enter the outflow passage only at the outflow opening;
a separation component for particles or droplets to be separated is arranged between the tubular diverting part and the outflow opening of the outflow channel member;
wherein the separation component is radially spaced apart from both the diverting part and the outflow channel member;
wherein the outflow opening is arranged at or near the annular upper end face edge and away from the bottom axial end of the filter element, wherein the upper edge of the outflow opening is arranged at the same axial height or slightly below the overflow region.

Assignees

• Mann & Hummel Gmbh

Inventors

• Volkmer Daniel
• Trautmann Pius
• Duerr Elke
• Jokschas Guenter
• Nissler Elisabeth
• Schweikart Marco
• Schreckenberger Dieter
• Epli Sven
• Glueck Oliver
• Eichinger Stefan

Classifications

• B01D2201/316

  Standpipes · CPC title

• B01D17/04

  Breaking emulsions · CPC title

• B01D2201/291

  End caps · CPC title

• B01D36/001

  Filters in combination with devices for the removal of gas, air purge systems · CPC title

• B01D36/003

  Filters in combination with devices for the removal of liquids (B01D35/185 takes precedence) · CPC title