FIELD: mechanical engineering.
SUBSTANCE: single-screw pump comprises rotor and stator, suction and delivery branch pipes, and passage for pressurizing made in the body of the rotor. The face of the rotor is provided with a bore that receives outer and inner pistons with plate springs as well as the stop mounted inside the bore. The face of the rotor at the bore exit is provided with a ring. The plate spring of the pistons face the stop. The passage for pressurizing connects the bore with the space of the suction branch pipe.
EFFECT: enhanced reliability.
4 dwg
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