| 摘要 |
<p>A gas pressure regulator which comprises the following members: a body (1); a high-pressure cavity (2); an inlet channel (3); a low-pressure cavity (4); a central channel (5); an outlet channel (7); a plunger (6); and a regulation restrictor (8) including a seat (9) onto which a closure member (10) is biased by a spring member (11). This regulator also includes a damping chamber (12) separated from the low-pressure cavity (4) by a body wall (13) having a connecting hole (14) coaxial to the central channel (5). The regulator comprises a sensitive member (15) in the form of a membrane (16) which is integrated in the body and co-operates with an active member (17). The sensitive member (15) is connected to the closure member (10) by means of the plunger (6) which, when passing through the connecting hole (14) of the body wall (13), defines a regulation gap. This regulator is characterised by the plunger being located in a region of the central channel (5), a part of which has a cross section tapering in the direction of the closure member (10), e.g. defining a conical shape or based on an elliptic generatrix. The inlet of the outlet channel (7) is located in the immediate vicinity of the connecting hole (14) inlet. The width of the gap between the plunger (6) and the connecting hole (14) is defined according to variable mathematical correlations, while the high-pressure cavity (2) and the regulation restrictor (8) are located within a supply connector (20). The membrane (16) of the sensitive member (15) may be in the form of separate plates defining between them a sealed damping cavity (26).</p> |
