| 摘要 |
PURPOSE:To reduce vibration and noise by oppositely installing compression boards and allowing each cylinder inner chamber in each discharge hole range in the compression part to communicate with each other through a communicaption passage control mechanism and revolving the electrically driving boards reversely to each other. CONSTITUTION:During the time when two boards of compression parts 10 and 11 revolve, the pressure of the coolant which flows into each cylinder inner chamber 17, 12 is increased by the compressive action of pistons 25 and 30. After the pressure reaches a certain value, discharge valves 31 and 14 are opened to discharge the coolant. When the top dead center reaches near the position of the partitioning vane, the pressure sharply reduces nearly to the suction pressure. During the course of pressure variation through a series of processes, the pressure of coolant acts correspondingly onto the eccentric pistons 25 and 30, and a kind of loading torque variation is generated, while on the hand, the variation of the torque of the motor parts 9 and 8 is generated. Said loading torque variation can be offset by setting the compression parts 10 and 11 in the state of reverse revolution. |
