To prevent deterioration in lubricity of a bearing when operating a rotor at a high speed.
A vane rotary compressor is provided with an oil feeding passage for communicating an oil storage part arranged in a lower part of a high pressure chamber with a vane slot 6a, by separating lubricating oil in a high pressure fluid compressed by a compression mechanism part by the high pressure chamber. A circular arc-shaped oil groove 16 continuing with the oil feeding passage 15 is arranged on a rear side plate 3 so as to surround the bearing 8, and the vane slot 6a is also formed as the oil groove 16 having a shutting-up section for preventing the communication with the other vane slot in a predetermined rotation angle just before completing compression, and is constituted by arranging an oil feeding groove 17 communicating with the bearing 8 in its shutting-up section, so that lubricating oil of an oil rich state is supplied to the bearing 8 via the oil feeding groove 17 from the vane slot 6a even in high speed operation, and durability of the compressor can be improved by improving a lubricating state of a bearing part.
| JPS60131690 | [Title of the device] Behn type rotation compressor |
| JPS60142084 | VANE TYPE COMPRESSOR |
| WO/2018/236096 | COMPRESSOR INCLUDING ROUNDED PORTION FORMED AROUND DISCHARGE PORT THEREOF |
Hiroki Naito
Daisuke Nagano