| 摘要 |
<p>The device intended to the regulation of the flow rate of a compressor comprises a lifting member (1) movable in the lifting direction and on which actuates a spring (5) having a force adjustable by means of an adjusting member in the opening direction of the closure plate (11). The lifting member (1) cooperates with the closure plate (11) by means of lifting fingers (10) and is subdivided into at least two elements (7, 8) displaceable with respect to each other in the lifting direction and between which there is arranged at least one damping spring (9). The stroke between the elements (7, 8) is limited by stops (13, 16) between which the springs (9) are tensioned. The tension of the springs (9) is approximately as high as or higher than the force of the springs (5) which are intended to maintain the valves open. In operation and under normal load conditions, the lifting member (1) acts therefore as a rigid member and accurately guides the lifting of the closure plate. Hard shocks are dampened since the constituent parts of the lifting members may be displaced relatively against the force of the damping springs. </p> |
