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FWB cam rotor pump is also named rotary lobe pump,threelobe pump,sole pump,etc.
When the 2 simultaneous reverse rotating rotors(with 2-4 gears) revolve, it produces suction force at the inlet(vacuum), which intakes the material delivered.
The 2 rotors divide the rotor housing into many smaller parts and revolve in the sequence of a-b-c-d .When it revolves to position a, only housing I is filled with medium;when it goes to position b, housing B encloses part of the medium;when it goes to position chousing c, housing A also encloses medium ;and finally it goes to position d, then housing A,B and II are interlinked and the medium is transported to the outlet.As this process is repeated, medium(material) is transpor-ted continuously .