SPUR-TYPE VOLUMETRIC MACHINE Russian patent published in 2021 - IPC F04C2/356 

FIELD: pumping equipment.

SUBSTANCE: invention relates to the field of hydraulic machines and can be used in the creation of high-performance compact rotary pumps of low and medium pressure. A spur-type volumetric machine contains a cylinder 5 with a suction window 10 and a discharge valve 11, covered with end caps 6 and 7, a rotor 1 with a tooth 2 rigidly connected to the drive shaft 4 and placed in the cylinder 5, and a device for the passage of the tooth 2 in the area of the window 10 and the valve 11, made in the form of a cam 15 rigidly connected to the shaft 4, and a flap 12 placed in a groove 13 with the possibility of moving along it and spring-loaded towards the cylinder 5. The groove 13 is located between the window 10 and the valve 11, and its axis is made intersecting with the circumference of the cylinder 5. The flap 12 has a protrusion 14 in contact with the cam 15. The protrusion 14 and the cam 15 are placed in the cavity of the spacer installed between the lid 7 and the cylinder 5.

EFFECT: invention is aimed at reducing the material consumption and dimensions of the machine, reducing the manufacturing costs.

1 cl, 7 dwg