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公开(公告)号:US5038772A
公开(公告)日:1991-08-13
申请号:US368870
申请日:1989-06-20
申请人: Ernst-Gunther Kolbe , Norbert Kollenbrandt , Hasso Weinmann , Wolfgang Drews , Karsten Vogeler , Hans-Burkhardt Fiedler
发明人: Ernst-Gunther Kolbe , Norbert Kollenbrandt , Hasso Weinmann , Wolfgang Drews , Karsten Vogeler , Hans-Burkhardt Fiedler
CPC分类号: A62B7/10
摘要: A closed-cycle breathing equipment and gas mask for operation under pressure with a pressurized air source for respiratory air and with an air bag being under prestress during the inspiration phase includes an arrangement where the prestress is decreased by a control element recognizing the expiratory phase and so as to support respiration during the expiration phase. A pneumatic control valve is used which can switch connections between the inspiration and the expiration phase and which is directly controlled by the difference between the exhalation pressure and the pressure in the air bag. The control valve connects the pressurized air source with the air bag during the inspiration phase and during the expiration phase it interrupts the connection due to the occurring dynamic pressure of the pressurized air from the pressurized air source and thus actuates a pneumatic adjusting element so that the mechanical prestress at the air bag is reduced.
摘要翻译: 一种闭环呼吸装置和防毒面具,用于在吸气阶段期间具有用于呼吸空气的加压空气源和处于预应力下的气压在压力下运行,包括其中通过识别呼气相的控制元件减少预应力的装置,以及 以便在呼气阶段支持呼吸。 使用气动控制阀,其可以在吸气和呼气阶段之间切换连接,并且由呼气压力和气囊中的压力之间的差直接控制。 控制阀在加压阶段期间将加压空气源与气囊连接,并且在呼气期间,由于来自加压空气源的加压空气的动态压力而中断连接,从而致动气动调节元件,使得气动调节元件 气囊处的机械预应力减小。
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公开(公告)号:US4981655A
公开(公告)日:1991-01-01
申请号:US216705
申请日:1988-07-08
CPC分类号: C01B13/0296 , A62B21/00 , C01B13/0218
摘要: A chemical oxygen generator has a chemical mixture based on an alkali-metal chlorate (NaClO.sub.3) which constitutes the charge of a cartridge having an ignition device and an oxygen outlet. This oxygen generator is improved so that the charge is insensitive to shock and so that it can be configured in any desired outer form and size and that an advancing reaction zone is assured without a further assisting device. The charge includes a tight bed of chemical pellets which lie one against the other to form the smallest possible contact surfaces.
摘要翻译: 化学氧气发生器具有基于碱金属氯酸盐(NaClO 3)的化学混合物,其构成具有点火装置和氧气出口的药筒的电荷。 该氧气发生器被改进,使得电荷对冲击不敏感,并且可以以任何期望的外部形式和尺寸配置,并且确保前进的反应区域不需要另外的辅助装置。 电荷包括紧密的化学颗粒床,其彼此相对地形成以形成最小可能的接触表面。
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