| 摘要 |
A valve for a fluid, comprising a housing (1, 2) provided with an inlet opening (3) and an outlet opening (4) and a movable valve member (5) which can bear against a valve seat (6) for the purpose of closing the valve, with a control chamber (25) being formed on the side of the movable valve member (5) remote from the valve seat (6), which control chamber (25) comprises the stroke volume of the valve and which is connected, via a throttle channel (10), to the inlet opening (3), and with means (26) being present for allowing fluid to escape from the control chamber (25) for the purpose of opening the valve as a result of the pressure on the part of the other side of the movable valve member (5), which is in open communication with the inlet opening (3), moving the movable valve member (5) away from the valve seat (6), wherein the movable valve member (5) can move along a valve member (21) which is fixedly disposed in the housing, to which end the valve members (5, 21) together comprise two tubular sliding surfaces (51, 52) having mutually different diameters and two complementary, annular sliding edges (22, 23) having corresponding mutually different diameters, which mate therewith, wherein the valve seat (6) is positioned between the sliding surface (51) having the smaller diameter and the sliding surface (52) having the larger diameter, seen in axial direction.
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