| 摘要 |
PCT No. PCT/SE97/00821 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 20, 1997 PCT Pub. No. WO97/44093 PCT Pub. Date Nov. 27, 1997A pressure reducing and filling valve combination for use in conjunction with gas bottles, particularly gas bottles that contain breathing gas under high pressure for use by underwater divers, firemen, etc. The valve includes a valve chamber and a spring-loaded valve slide movable in the valve chamber for reducing the pressure with the aid of the spring when gas is taken from the bottle for delivery to a part of the chamber. The pressure in this chamber part is held substantially constant at a level determined by the spring force. An external multi-purpose valve connector is adapted to connect the valve chamber to external equipment when gas is consumed. When filling the bottle with gas under high pressure, the valve delivers gas to the bottle via the same passageway as that through which gas was delivered to the valve chamber in response to gas consumption. |
