| 摘要 |
PURPOSE:To prevent chattering by functioning high back pressure onto the vane when it is near the delivery port while functioning low back pressure when it is at the starting position. CONSTITUTION:A high pressure port 25 for functioning high back pressure onto the flank section 22 of vane groove 33 when the vane 4 is near the delivery port 19 and a low pressure port 23 for functioning low back pressure onto the flank section 22 of the vane groove 33 when the vane 4 has passed through the delivery port 19 to the starting position are formed through the front side and rear side plates 1, 2 of vane type compressor. Said ports 23 and 25 are separated more than the width of vane groove to be independent port. |
