| 摘要 |
1. Gas-pressure reducing valve, comprising a membrane (1), one of the sides of which is in contact with a plate (2), and the circumference of which is trapped between a body (3) and a lid (4), preferably having the general form of a body of revolution in relation to an axis (X, X') this membrane subdividing the space defined by the body (3) and the lid (4) into two chambers (A, B), one of which comprises the plate (2) and, preferably at a distance from the axis (X, X'), a spring (6) forcing the said plate back, and the other of which communicates both with the outlet connection piece (8) and with an inlet connection piece (7), on the orifice of which latter piece the membrane (1) comes to bear when the plate (2) rocks in relation to a supporting point provided between the spring (6) and the orifice, the supporting point and the spring (6) being preferably on either side of the axis (X, X'), characterised by means (9, 10) for retaining the plate (2) against the lid (4). |
