Patent ID: 11946394
Assignee: ECO HOLDING 1 GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A method for producing a cam phaser for a cam shaft of an internal combustion engine, the cam phaser including a rotor, a stator and at least one cover, the method comprising:
arranging the at least one cover at the stator wherein the at least one cover is a flat annular piece of sheet metal and the stator including internal vanes and external drive teeth is integrally provided from one piece of metal;
contact sealing the at least one cover at the stator by applying an annular smooth ground axial face without off-center cutouts of the at least one cover to a ground contact surface of the stator; and after the contact sealing;
welding and externally sealing the at least one cover with the stator by a closed circumferential weld along an outer edge of the at least one cover and connecting the at least one cover to the stator while maintaining the contact sealing of the at least one cover at the stator by continuing to apply the annular smooth ground axial face without off-center cutouts of the at least one cover to the ground contact surface of the stator by the closed circumferential weld so that an opposite axial face of the at least one cover that is opposite to the annular smooth ground axial face without off-center cutouts forms an outer surface of the cam phaser.