摘要 |
<p>The invention provides a protection system (52) for a fluid compartment (10) of variable volume. The protection system (52) comprises a detection means (26) for detecting when the volume of the fluid compartment is outside a predetermined acceptable limit. The protection system (52) also comprises a valve arrangement (30, 40) mountable on at least one port that is in selective fluid communication with the fluid compartment (10). The protection system (52) further comprises an actuator (50), wherein the detection means (26) is coupled to the valve arrangement (30, 40) via the actuator (50). When the detection means (26) detects that the volume of the fluid compartment (10) is outside the predetermined limit, the actuator (50) causes the valve arrangement (30, 40) to change state and alters the volume of the fluid compartment (10). The protection system (52) can be used with a compensator (1) to protect a movable part (22) of the compensator (1) from damage.</p> |