| 摘要 |
A first-stage air regulator for diving apparatus which is designed to reduce high tank air pressures to air pressures more compatible with normal breathing. The air regulator includes a cylindrical regulator housing containing a sliding piston which is provided with air slots adapted for transiently establishing air flow from a high-pressure air chamber contained in one end of the housing to an intermediate-pressure air chamber adjacent to the high-pressure air chamber. The air within the intermediate-pressure chamber equilibrates with pressure applied to the piston by a spring and ambient water pressure, before passing to a second-stage air regulator and mouthpiece by means of an air hose. Additionally, air can be transferred from the intermediate-pressure chamber to accessories such as a lift bag, a power inflator or a blow gun, through corresponding air hoses.
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