| 摘要 |
The disclosure relates to an apparatus in a gas regulator for reducing the variation of the secondary pressure (p2) in relation to the primary pressure (p1) on falling primary pressure. The regulator comprises a diaphragm (2) and first spring means (3) acting thereon, there being disposed, centrally in the diaphragm, a pressure member (4) intended to act on a spindle device (7) which cooperates with a movable valve insert (9) resting on a valve seat (8), and second spring means (10) acting on this insert. Between the pressure member (4) and the spindle device (7) there is inserted a fulcrum arrangement (11, 12), the fulcrum (12) influenced by the pressure member being longer than the fulcrum (11) influenced by the spindle device, whereby the slope of the curve for the secondary pressure (p2) as a function of the primary pressure (p1) is reduced by a factor equal to (12-11)/12. |
