| 摘要 |
A rotary piston compressor includes an epitrochoidal body with front and back side covers, rotor on eccentric shaft, device for lubricant sprinkling as ejector, system of channels that connect the ejector with working chambers and a device for lubricant dosing. To provide economy at dosed oil supply to friction surfaces of the compressor the carter for lubricant placement is fixed to the back side cover, the ejector is installed in the carter, and the system of channels is arranged as radial or inclined opening provided in the body in zone of processes of expansion and connected to it through the chamber with larger diameter of the axial opening that goes through the body, the flange of the back side cover and the front flange of the carter, and connected to the ejector, on the working surfaces of the side covers radial channels for connection through circular gap arranged between the eccentric shaft and the back side cover are provided, the cavities of the carter with working chambers at suction period, at that the device for dosing lubricant supply is arranged as a spring-supported valve and cut elastic ring, mostly made of anti-friction material, this has a gap with given dosing value at the cut location, there the spring-supported valve is installed in front of the ejector in the chamber with larger diameter, and the cut elastic ring is installed to the circular gap between the eccentric shaft and the back side cover, at that the ring closes the circular gap, and in the place of its cut a gap with given dosing value is formed. |
