| 摘要 |
<p>An actuator comprising a fluid-actuated jack, which can be activated by a gas contained under pressure inside a bottle (14); a percussion-type piercing element (15), which can move between a passive position for closing the bottle and an active position for piercing the bottle (14) in order to activate the jack; a mechanical flow control device, which comprises a sensor (32) for detecting hot gases and smoke and a flow control element (27) that is controlled by the sensor and is functionally associated with the piercing element (15) so as to allow the movement of the piercing element from the passive position to the active position when the sensor detects the presence of the hot gases and smoke. The jack comprises a cylinder (2) that is closed by a lower cap (4) that has a connecting element for supporting the bottle (14) inside the cylinder (2), and seats (31, 23, 12) for accommodating the sensor (32), the flow control element (27) and the piercing element (15).</p> |
