rib design in the case of a charger according to the principle of the spiral

摘要

The rib design in the case of a charger according to the principle of the spiral is connected to the insides of the housing and on the displacement body through vertical, rectangular spiral ribs characterized. This embodiment has the disadvantage that, in the case of high fin height this can be unstable and a high level of mechanical processing require. Therefore, the invention provide a reinforced rib design with a reduced degree of processing the object of. The aim is achieved in that the ribs of the bottom on the housing wall or the displacement body up to its upper end to be designed conically.