| 摘要 |
<p>The invention relates to rotary pumps. The inventive rotary pump comprises a hollow body (1) consisting of side (2) and end walls, a shaft (3) which is rotatively arranged in the body (1) substantially in parallel position to the sidewall (2). A distance between the sidewall (2) of the body and the shaft (3) is variable. Deformable rollers (4), which are positioned between the sidewall (2) of the body and the shaft (3) are displaceable while the shaft (3) rotates in such a way that they are maximally deformed in the area of a minimum distance between the body sidewall (2) and the shaft (3). Sealed cavities (5) are formed by two adjacent rollers (4), the side wall (2), the end walls of the body (1) and the shaft (1). Said sealed cavities (5) are embodied in such a way that they are connectable to a suction hole when the volume thereof is increased and to a delivery hole when the volume is decreased. Said invention makes it possible to increase the delivery performance, simultaneously reduce the overall dimensions and the mass, to improve the economical efficiency, service life of a pump and to ease the operation thereof.</p> |
