Abstract: A component system including at least two components, between which a cavity to be filled is formed, wherein the cavity has a feed section, and a filling device for the filling of the cavity via a feed element, which can be introduced, before the filling procedure into the feed section. The feed element has a closure and sealing element, which is configured to close and seal the feed section in a closure position during the filling procedure. The closure and sealing element is configured as an elastically expandable body, which can change between the closure position and a release position. During an introduction of the feed element into the feed section, the closure and sealing element is in the release position, and can then be transferred into the closure position.

Abstract: A component system including at least two components, between which a cavity to be filled is formed, wherein the cavity has a feed section, and a filling device for the filling of the cavity via a feed element, which can be introduced, before the filling procedure into the feed section. The feed element has a closure and sealing element, which is configured to close and seal the feed section in a closure position during the filling procedure. The closure and sealing element is configured as an elastically expandable body, which can change between the closure position and a release position. During an introduction of the feed element into the feed section, the closure and sealing element is in the release position, and can then be transferred into the closure position. In the closure position, any movement of the feed element counter to the direction of its introduction is inhibited.