| 摘要 |
PCT No. PCT/AU96/00461 Sec. 371 Date Apr. 1, 1998 Sec. 102(e) Date Apr. 1, 1998 PCT Filed Jul. 19, 1996 PCT Pub. No. WO97/04260 PCT Pub. Date Feb. 6, 1997A valve (1, 2) of the kind that is caused to open and close in consequence of the opening and closing of a bleed orifice (15) by a movable pilot valve element (3, 4, 5), characterised in that said element (3, 4, 5) is displaced from sealing relationship with the orifice (15) by a torque resulting from a force applied (7, 9) to the element (3, 4, 5) along a line of action which does not extend through the orifice (15). Another embodiment of the pilot valve element consists of a cylindrical magnet housed in an elastometric tire actuated by a permanent magnet of electromagnet (FIGS. 5-8). Actuators of the torque causing force include a solenoid (FIGS. 1-2), float (FIG. 3), and fluid pressure (FIG. 4).
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