REVERSIBLE PUMP Russian patent published in 2002 - IPC

FIELD: mechanical engineering; reversible pulsationless high-pressure pumps which operate in pump mode and engine mode. SUBSTANCE: proposed pump includes stator, rotor with holes where expulsors are located for motion along axis of rotation, working chamber with suction cavity and discharge cavity, as minimum two separating strips, units interconnecting the cavities located on different sides from opposite butts of expulsors. Working chamber of pump is bounded by surfaces of circular slot made in rotor butt; it passes through holes of rotor where expulsors are placed. These holes form recesses on surfaces of circular slot when they intersect with it. Mechanism setting the axial relative position of expulsors is made for sliding contact with each dividing strip always at minimum of one expulsor. EFFECT: improved working parameters of pump; facilitated procedure of manufacture and extended functional capabilities. 3 dwg