Multiple flow pump for gases and vapours - has rotor pressed from strip to form multichamber shape

摘要

The pump for gases and vapour has multiple flow rotor. This pump has low dynamic masses and operates with low noise. The rotating part is a cylindrical, spiral, radially or specially formed pressed strip (1.1). The space between the wound strip forms the ring or plate for the flow chambers. The peripheral division of the flow spaces is arranged preferably as a multistart helical screw or in the form of a staircase. The mechanical connection is ensured by a central shaft of firm connection of the separate configurations. The individual strip segments, rings or plates are connected by adhesive bonding, electrolysis, spot welding or by clamping or upsetting.