| 摘要 |
<p>A circular aperture surrounded by the valve seat (4) interconnects inlet (2) and outlet (3). A disk (8), integrally formed on a rod (9) passing coaxially through the seat, normally closes the aperture under pressure of a helical spring (10). Guide bores are provided for the rod in a top-cap (5), screwed (6) and sealed (7) to the valve body (1), and at the inner end (11a) of a cartridge chamber (11) screwed into the lower body. The explosive charge (19) of the screwed-in (12b) cartridges (12), detonated by a heated filament (20) connected (15,16) to an initiating device, forces a striker pin (17) against the rod. A plastic plug (18), sealing in the pressure, keeps the valve open. Three variants, including a servo arrangement, are described.</p> |
