Plug-in coupling seal for a fluid line of a drive motor

2:

• The plug-in coupling seal according to claim 1, wherein an outer surface (5) is formed for accommodation in a first coupling part (11) and an inner surface (7) is formed for contact against a second coupling part (12) to be pushed in insertion direction (16) into the first coupling part (11), wherein the microstructuring (22) having the protruding structuring elements (23) for reduction of the resistance of the two coupling parts (11, 12) to joining is formed on the inner surface (7).

3:

• The plug-in coupling seal according to claim 1, wherein the protruding structuring elements (23) of the microstructuring (22) are designed in the form of several at least partly and especially completely circumferential ribs.

4:

• The plug-in coupling seal according to claim 1, wherein the protruding structuring elements (23) have a height (25) of between 10 μm and 900 μm, especially between 40 μm and 400 μm, preferably between 80 μm and 200 μm.

5:

• The plug-in coupling seal according to claim 1, wherein a free space (27) of between 10 μm and 900 μm, especially between 40 μm and 400 μm, preferably between 100 μm and 200 μm is formed between the protruding structuring elements (23).

6:

• The plug-in coupling seal according to claim 1, wherein the protruding structuring elements (23) have a width (28) of between 5 μm and 300 μm, especially between 10 μm and 200 μm, preferably between 30 μm and 100 μm.

7:

• The plug-in coupling seal according to claim 1, wherein the protruding structuring elements (23) are formed in a manner bent in insertion direction (16).

8:

• The plug-in coupling seal according to claim 1, wherein a lubricant (29) is disposed between the protruding structuring elements (23).

9:

• The plug-in coupling seal according to claim 1, wherein several protruding structuring elements (23) are disposed one after the other in wavy manner.

10:

• The plug-in coupling seal according to claim 2, wherein the inner surface (7) of the plug-in coupling seal (1) on which the protruding structuring elements (23) are disposed extends between a first longitudinal end (17) of the plug-in coupling seal (1) having a first diameter (18) and a second longitudinal end (19) of the plug-in coupling seal (1) having a second diameter (20), wherein the second diameter (20) is smaller than the first diameter (18) and a transition radius (21), which extends between the first longitudinal end (17) of the plug-in coupling seal (1) and the second longitudinal end (19) of the plug-in coupling seal (1), is formed on the inner surface (7).

11:

• The plug-in coupling seal according to claim 1, wherein a coating (31), by which the sliding behavior of the microstructuring (22) may be further improved, is formed at least on the contact face (32).

12:

• The plug-in coupling seal according to claim 1, wherein cavities, in which a lubricant (29) is disposed, are formed in the plug-in coupling seal (1).

13:

• A motor vehicle comprising:
• a drive motor, an air-intake line of the drive motor and a plug-in coupling (10) of the air-intake line of the drive motor, wherein the plug-in coupling (10) has a first coupling part (11) having a plug-in coupling seal (1) received therein and a second coupling part (12) inserted into the first coupling part (11), wherein the plug-in coupling seal (1) is formed according to claim 1.