Abstract: The invention concerns a welding device control method and a novel welding device for the electrical spot or resistance welding of material to be welded. The welding device comprises at least two weld electrodes which, for the welding process, are pressed by an actuating device at a predetermined electrode force against the material to be welded. The welding device further comprises a control system which controls the welding current via a controller.

Abstract: A prechamber for an air-compressing injection internal combustion engine which includes an enlarged space portion in communication with the cylinder space by way of a channel-shaped space portion; fuel is injected into the enlarged space portion essentially in the direction of the channel-shaped space portion while a baffle member is provided in the enlarged space portion which has a surface curved in the direction toward the fuel jet; the bottom side of the baffle member or of the insert pin thereof is constructed at least within the area of the baffle member as guide surface for the in-flowing combustion air flowing into the enlarged space portion of the prechamber.