Filter device

• US 9,333,448 B2
• Filed: 08/27/2010
• Issued: 05/10/2016
• Est. Priority Date: 09/15/2009
• Status: Active Grant

• Current Assignee: Mahle International GmbH (MAHLE-STIFTUNG GmbH)
• Original Assignee: Mahle International GmbH (MAHLE-STIFTUNG GmbH)
• Inventors: Braunheim, Michael, Lika, Torsten
• Primary Examiner(s): Lithgow, Thomas M
• Application Number:
  US13/496,250
• Publication Number:
  US 20120234743A1
• Time in Patent Office: 2,083 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B01D 17/045 with coalescers
• CPC Class Codes: B01D 2201/291 End caps
• CPC Class Codes: B01D 2201/295 with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
• CPC Class Codes: B01D 2201/305 Snap, latch or clip connecting means
• CPC Class Codes: B01D 2201/4007 Use of cam or ramp systems
• CPC Class Codes: B01D 2201/4053 using keys
• CPC Class Codes: B01D 2201/4084 Snap or Seeger ring connecting means
• CPC Class Codes: B01D 27/00 Cartridge filters of the throw-away type
• CPC Class Codes: B01D 27/08 Construction of the casing
• CPC Class Codes: B01D 29/11 with bag, cage, hose, tube, sleeve or like filtering elements
• CPC Class Codes: B01D 35/005 Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
• CPC Class Codes: B01D 35/153 Anti-leakage or anti-return valves
• CPC Class Codes: B01D 35/16 Cleaning-out devices , e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
• CPC Class Codes: B01D 35/30 Filter housing constructions
• CPC Class Codes: B01D 36/003 Filters in combination with devices for the removal of liquids B01D35/185 takes precedence
• CPC Class Codes: B01D 36/006 Purge means
• CPC Class Codes: F01M 11/03 Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means filters B01D
• CPC Class Codes: F02M 37/24 characterised by water separating means
• CPC Class Codes: F02M 37/42 Installation or removal of filters

Abstract

A filter device may include a ring filter element arranged in a filter housing in an upright manner. The ring filter element may have an upper end disc and a lower end disc. A dirt pot may have a water separator arranged therein and be provided on the lower end disc. The dirt pot may also have a protruding pin. A channel may be configured to receive the pin and be provided on at least one of a filter housing pot and a functional element. The filter device may be operational when the pin engages into the channel.

Claims

1. A filter device comprising:

a ring filter element arranged in a filter housing in an upright manner, the ring filter element having an upper end disc, a lower end disc, a filter material arranged between the upper end disc and the lower end disc, and a dirt pot having a separate water separator arranged therein and provided on the lower end disc, the dirt pot having a protruding pin and an opening on a base side of the dirt pot, the dirt pot being configured to be inserted into a filter housing pot of the filter device, and

a functional element, the functional element having a channel configured to receive the pin, a portion of the functional element being configured to penetrate the opening of the dirt pot, the portion of the functional element further having at least one discharge opening,

wherein the filter device is operational when the pin engages into the channel.

2. The filter device according to claim 1, wherein the water separator is constructed as a coalesce and is welded onto the lower end disc of the ring filter element.

3. The filter device according to claim 2, wherein the dirt pot is welded onto the lower end disc of the ring filter element.

4. The filter device according to claim 1, wherein the filter device is constructed as at least one of an oil filter and a fuel filter.

5. The filter device according to claim 1, further comprising at least one sealing element arranged on the pin, the sealing element configured to tightly close the channel with the pin engaging therein.

6. The filter device according to claim 1, further comprising a guide arranged on at least one of the filter housing pot and the functional element and configured to guide the pin into the channel.

7. The filter device according to claim 5 wherein the pin has a shaft having cruciform cross-section and a pin head adjoining thereto, further wherein the at least one sealing element is arranged in a region of the pin head.

14. The filter device according to claim 1, wherein the dirt pot is welded onto the lower end disc of the ring filter element.

15. The filter device according to claim 14, wherein the filter device is constructed as at least one of an oil filter and a fuel filter.

16. The filter device according to claim 14, further comprising at least one sealing element arranged on the pin, the sealing element configured to tightly close the channel with the pin engaging therein.

17. The filter device according to claim 2, further comprising at least one sealing element arranged on the pin, the sealing element configured to tightly close the channel with the pin engaging therein.

18. The filter device according to claim 17, wherein the pin has a shaft having cruciform cross-section, and a pin head adjoining thereto, further wherein the at least one sealing element is arranged in a region of the pin head.

19. The filter device according to claim 2, further comprising a guide arranged on at least one of the filter housing pot and the functional element and configured to guide the pin into the channel.

20. The filter device according to claim 1, wherein the dirt pot having the water separator arranged therein operates as a dirt-collecting chamber within at least a portion of the dirt pot and a water-collecting chamber within the water separator.

21. The filter device according to claim 6, wherein the guide is an incline along which the pin slides to the channel.

8. A ring filter element for a filter device comprising:

an upper end disc and a lower end disc,

a filter material arranged between the upper end disc and the lower end disc, and

a dirt pot provided on the lower end disc and having a separate water separator arranged therein and provided on the lower end disc, wherein the dirt pot has a protruding pin and an opening on a base side of the dirt pot configured to receive a portion of a functional element,

wherein the pin is configured to engage in a channel provided in the functional element such that the filter device is operational.

9. The ring filter element of claim 8, further comprising at least one sealing element arranged on the pin, the sealing element configured to tightly close the channel with the pin engaging therein.

10. The ring filter element of claim 9, wherein the pin has a shaft having cruciform cross-section and a pin head adjoining thereto, further wherein the at least one sealing element is arranged in a region of the pin head.

11. The ring filter element of claim 8, further comprising a guide arranged on the functional element and configured to guide the pin into the channel.

12. The ring filter element of claim 8, wherein the water separator is constructed as a coalesce and is welded onto the lower end disc of the ring filter element.

13. The ring filter element of claim 8, wherein the dirt pot is welded onto the lower end disc of the ring filter element.