Servo-drive for actuating a fuel injection valve, including a cover for a contact system and/or sealing arrangement
A cover ( 10 ) is used as a protective covering for a contacting and/or sealing arrangement ( 3, 4 ) on a servo-drive ( 1 ) for actuating a fuel injection valve, wherein the cover ( 10 ) is easy to label, capable of being used in the greatest possible number of ways and has a cover body ( 12 ) in the form of a plastic injection molding with a labeling area ( 14 ) embedded in it. The plastic material of the cover body ( 12 ) is chosen for its suitability for laser welding to a fastening section ( 22 ) of the servo-drive ( 1 ), and the material of the labeling area ( 14 ) is chosen for its suitability for laser labeling purposes.
1 . A servo-drive for actuating a fuel injection valve comprising a cove for a contact system and/or arrangement for sealing the servo-drive, wherein the cover has a cover body formed as a plastic injection molding with a labeling area embedded in it, the plastic material of the cover body is chosen for its suitability for laser welding to a fastening section of the servo-drive, and the material of the labeling area is chosen for its suitability for laser labeling purposes.
2 . The servo-drive according to claim 1 , wherein the cover body is largely in the shape of a disk.
3 . The servo-drive according to claim 1 , wherein an external peripheral edge of the cover body has a lug projecting in axial direction on at least one point of the circumference.
4 . The servo-drive according to claim 1 , wherein the fastening section of the servo-drive is formed from plastic.
5 . The servo-drive according to claim 1 , wherein the fastening section of the cover is in the form of a plastic film.
6 . The servo-drive according to claim 1 , wherein the fastening section of the cover is arranged on an outer surface of the cover.
7 . The servo-drive according to claim 1 , wherein the cover is manufactured by means of a two-component injection molding method in which the labeling area is inserted into the injection molding tool.
8 . A fuel injector, comprising a servo-drive for actuating a fuel injection valve, including a cover for a contact system and/or arrangement for sealing the servo-drive, the cover having a cover body formed as a plastic injection molding with a labeling area embedded in it, the plastic material of the cover body being chosen for its suitability for laser welding to a fastening section of the servo-drive, and the material of the labeling area being chosen for its suitability for laser labeling purposes.
9 . A method of using a cover for covering a contacting and/or sealing arrangement on a servo-drive for actuating a fuel injection valve, the cover having a cover body formed as a plastic injection molding with a labeling area embedded in it, the method comprising the steps of:
choosing the plastic material of the cover body for suitability for laser welding to a fastening section of the servo-drive, and
choosing the material of the labeling area for suitability for laser labeling purposes.
10 . The method according to claim 9 , wherein the cover body is largely in the shape of a disk.
11 . The method according to claim 9 , wherein an external peripheral edge of the cover body has a lug projecting in axial direction on at least one point of the circumference.
12 . The method according to claim 9 , further comprising the steps of forming the fastening section of the servo-drive from plastic.
13 . The method according to claim 9 , wherein the fastening section of the cover is in the form of a plastic film.
14 . The method according to claim 9 , wherein the fastening section of the cover is arranged on an outer surface of the cover.
15 . The method according to claim 9 , comprising the steps of manufacturing the cover by means of a two-component injection molding method in which the labeling area is inserted into the injection molding tool.