| 摘要 |
<p>The invention relates to rotary machines and can be used for compressors, pumps, and expansion machines. The inventive rotary machine comprises a body (1), drive (2) and driven (3) rotors provided with blades (4) and intaking (6) and pumping (7) windows. The blades (4) of the drive rotor are provided with convex working surfaces, whereas the blades of the driven rotor (3) are provided with concave surfaces. A segment comprising depth-variable cavities (5) is embodied on the end of the drive rotor (3). A corresponding segment of the driven rotor (2) is provided with the blades (4) which are embodied in such a way that the profile thereof is variable in height along a longitudinal cross-section. The intaking window (7) is arranged in the part of the end surface of the body (1) which envelops the drive rotor (3) sector provided with the depth-variable cavities (5). Transition curves of the drive (2) rotor blades (4) and of the cavities (5) of the driven rotor (3) on a given sector and transition curves of the drive (2) and driven (3) rotor blades (4) are continuous along the entire extend thereof. Said invention increases the degree of compression, performance and the useful volume of the working space and reduces losses.</p> |
