FIELD: engines and pumps.
SUBSTANCE: invention relates to rotary machines and can be used as a pump for transfer of thick fluids with high content of abrasive particles. in compliance with this invention, geometry of rotors and housing bores should be changed. Rotor surface, front surface in direction of rotor revolution, has extending edge while mating profile recess is made at rotor opposite side to rule out rotor seizure. Besides, recess is made on rotor front surface to allow negative angle of inclination of the edge front surface relative to housing bores. This machine is divided into two sections. Machine serviceability is ensured at absence of rotors in one section by overlapping of said section by rotors of the other section to decrease pulsation of transferred medium.
EFFECT: longer life at heavy concentration of abrasive particles.
4 cl, 34 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROTARY MACHINE | 0 |
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|
RU2238436C2 |
