Filter appliance

Patent metadata

Field	Value
Publication number	US-9320992-B2
Application number	US-201113634456-A
Country	US
Kind code	B2
Filing date	Mar 8, 2011
Priority date	Mar 13, 2010
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

A filter appliance may include a ring filter element arranged upright in a filter having an upper end disc and a lower end disc. A component may be arranged on the lower end disc and may include at least one of a water collection pot, a projecting nipple-shaped pin and at least one key profile. A function element may be configured to be inserted in a filter housing pot of the filter appliance, the function element including a channel configured to receive the component. A lock profile may be provided on the function element, wherein the lock profile corresponds to the at least one key profile of the lower disk. The filter appliance is may be operational provided the pin engages the channel and the key profile engages in the lock profile.

First claim

The invention claimed is:

1. A filter appliance, comprising:
a ring filter element having a longitudinal axis and arranged in a filter housing, the ring filter element having an axially upper end disc and an axially lower end disc,
a collection pot arranged on the lower end disc and defining an opening, the collection pot including an axially projecting pin and at least one key profile protruding radially, wherein the pin and the at least one key profile are circumferentially spaced from one another,
a function element having an insertable portion configured to be inserted into the opening of the collection pot and an end portion including a channel configured to receive the pin, and
a lock profile disposed on the end portion of function element, wherein the lock profile is configured to receive the at least one key profile of the collection pot,
wherein the filter appliance is operational when the pin engages in the channel and the at least key profile engages in the lock profile.

2. The filter appliance according to claim 1 , wherein the at least one key profile includes at least one nose and the lock profile includes at least one slit arranged complementarily to the at least one nose.

3. The filter appliance according to claim 1 , wherein the at least one key profile includes two or more noses spaced from one another in circumferential direction and the lock profile includes two or more slits formed complementarily thereto.

4. The filter appliance according to claim 3 , wherein the lock profile is comb-like having individual teeth, and wherein the slits are formed between the individual teeth for receiving the noses.

5. The filter appliance according to claim 3 , wherein at least one of the slits includes a removable blocking element configured to close the at least one slit and match the locking profile to the at least one key profile.

6. The filter appliance according to claim 1 , wherein the filter appliance is embodied as at least one of an oil and a fuel filter.

7. The filter appliance according to claim 1 , wherein the end portion of the function element further includes a circumferentially extending guide including the lock profile and the channel, and wherein the pin is rotatably guided on the guide into the channel.

8. The filter appliance according to claim 7 , wherein the guide of the end portion defines an inclined ramp extending circumferentially from at least the lock profile to the channel, and wherein the pin slides along the ramp to the channel via a rotational movement.

9. The filter appliance according to claim 8 , wherein the channel has an axially extended contour partially surrounding a channel inlet on a side of the channel circumferentially opposite the ramp to stop the rotational movement.

10. The filter appliance according to claim 1 , wherein the at least one key profile engages in the lock profile in response to the pin engaging in the channel.

11. The filter appliance according to claim 1 , wherein the pin is disposed relative to the at least one key profile axially offset and towards the end portion of the function element, and wherein the pin interacts with the end portion of the functional element to prohibit the at least one key profile from engaging with the lock profile until the pin engages in the channel.

12. A ring filter element for a filter appliance, comprising:
an annular filtering material having a first axial end and a second axial end, the filtering material surrounding an interior space defining a central axis;
a water collection pot coupled to the first axial end with a water separator arranged therein, the water collection pot having an opening arranged coaxial with the interior space with respect to the central axis;
an axially projecting pin and key profile disposed on an outer circumference of the water collection pot facing away from the central axis, wherein the pin and the at least one key profile are arranged circumferentially spaced from one another;
a carrier element including a carrier portion insertable into the interior space of the filtering material via the opening of the water collection pot and a guide disposed on an axial end portion, wherein the guide includes a channel configured to receive the pin and a lock profile configured to receive the key profile when the carrier element is in an installed position;
wherein the carrier element is in the installed position when the key profile engages in the lock profile in response to the pin engaging in the channel.

13. The ring filter element according to claim 12 ,
wherein the key profile includes at least one radially protruding nose and the lock profile includes at least one axially extended slit formed complementarily to the at least one nose.

14. The ring filter element according to claim 13 , wherein the key profile further includes at least two noses circumferentially spaced from one another and the lock profile further includes at least two slits formed complementarily thereto.

15. The ring filter element according to claim 14 , wherein the lock profile is comb-like having a plurality of teeth defining the at least two slits, and wherein the at least two slits are formed between the individual teeth for receiving the at least two noses of the key profile.

16. The ring filter element according to claim 15 , wherein at least one of the slits is closed off by a removable blocking element configured to match the locking profile to the at least one key profile.

17. The ring filter element according to claim 12 , wherein the guide defines an inclined ramp extending circumferentially between the channel and the lock profile, and wherein the pin is slidably guided on the ramp into the channel along a rotational movement.

18. The ring filter element according to claim 17 , wherein the channel has an axially extended contour partially surrounding a channel inlet on a side of the channel circumferentially opposite the ramp to stop the rotational movement.

19. The ring filter element according to claim 12 , wherein the key profile is formed unitarily with the water collection pot and the lock profile is formed unitarily with the guide of the carrier element.

20. The ring filter element according to claim 12 , wherein the pin is disposed relative to the key profile axially offset and interacts with the guide to prohibit the key profile from engaging with the lock profile until the pin engages in the channel.

Assignees

• Braunheim Michael
• Mahle Int Gmbh

Inventors

• Braunheim Michael

Classifications

• B01D35/153 Primary

  Anti-leakage or anti-return valves · CPC title

• B01D2201/305

  Snap, latch or clip connecting means · CPC title

• B01D36/001

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

• B01D35/16

  Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid} · CPC title

• B01D35/306

  Filter mounting adapter · CPC title