Rotary Piston Pump comprising at least two Rotary Pistons that move in opposite directions, and a casing of rotary piston pump, where each has fins,Where the rotary piston are provided on their flanks of at least one contact element with which the Pistons are a set of friction.

摘要

Rotary Piston Pump comprising at least two Rotary Pistons that move in opposite directions, and a casing of rotary piston pump, where each has fins,Where the rotary piston are provided on their flanks of at least one contact element with which the Pistons are a set of friction.