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    • 56. 发明公开
    • Pressure reducer for compressed gases
    • DruckgindererfürDruckgase
    • EP1160639A2
    • 2001-12-05
    • EP01112434.4
    • 2001-05-22
    • POLIAUTO Ing. Pietro Parietti & C. S. n. c.
    • Parietti, Pietro
    • G05D16/06
    • G05D16/0672Y10T137/7795Y10T137/7801Y10T137/7805Y10T137/7809Y10T137/7813Y10T137/782Y10T137/8733Y10T137/87917
    • Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) at a pressure which depends on the gas pressure in the outlet pipe (3), an opening, closed by a membrane (43) integral with a cap (42), located between the said chamber (24) at the reference pressure and the said gas outlet pipe (3), a gas inlet chamber (10) with an opening (11) which leads to the said outlet pipe (3) in correspondence with the said cap (42), the movements of which said cap open and close the passage (11) between the said inlet chamber (10) and the said outlet pipe (3), and means (41) integral with the said first membrane (25) which act on the said cap (42) so that it approaches and retracts from opening (11) of the said gas inlet chamber.
      It is provided an additional regulation stage constituted by a chamber divided by a membrane (14) into two chambers (15, 16), one of which said chambers (16) is maintained at the reference pressure while the second such chamber (15) is maintained at the reduced gas inlet pressure into chamber (10), regulation means (19) being also provided, designed to act on the said membrane (14) to regulate the said reduced inlet pressure in the said gas inlet chamber (10), and a valve (5) designed to close a highpressure gas inlet pipe (2, 4), which said valve (5) is integral with the said membrane (14), and means (12, 13) which place the said chamber (15) in communication with the area close to the outlet opening (11) of the said gas entry chamber (10).
    • 用于压缩气体的减压器包括至少一个由第一隔膜(25)分隔成两个室(23,24)的室构成的调节级,其中一个室(24)保持在参考压力,另一个 (23),所述压力取决于所述出口管(3)中的气体压力,所述开口由位于所述室(24)之间的与所述室(42)成一体的隔膜(43)封闭,所述膜 和所述气体出口管(3),具有开口(11)的气体入口室(10),所述开口(11)与所述盖(42)对应地通向所述出口管(3),所述盖开口的运动 并且关闭所述入口室(10)和所述出口管(3)之间的通道(11),以及与所述第一膜(25)成一体的装置(41),其作用在所述盖(42)上,使得其 从所述气体入口室的开口(11)接近和缩回。 提供了由隔膜(14)分成两个腔室(15,16)构成的附加调节台,其中一个腔室(16)保持在基准压力,而第二个这样的室(15)是 保持在进气室(10)内的进气压力降低的同时,还提供调节装置(19),设计成作用在所述膜(14)上以调节所述气体入口室(10)中所述降低的入口压力,以及 设置成关闭所述阀(5)与所述膜(14)成一体的高压气体入口管(2,4)的阀(5)和将所述室(15)放置的装置(12,13) 与靠近所述气体入口室(10)的出口(11)的区域连通。