| 摘要 |
There is provided a cylindrical valve 20 for placement in the flow path of a singlet-delta oxygen generator 12 that feeds O2* to a chemical laser gain medium 14. The feed path 22 includes a sharp 90.degree. bend 24 that causes fluid velocity variations in O2* entering the gain medium 14. Integral with the valve 20 is a tubular structu re 12 having a partial circumferential radially extending surface 44 fitted with "O" r ing for sealing and opening the feed path between the "O2*" generator 12 and gain genera tor 14. A series of vanes 32, 34, 36 disposed in velocity control zones 50, 52, 54 a nd 56 are integral with the valve 20 for leveling out the velocity variations and cont rolling the wake formation 58, 59 and 60 in the O2* entering the gain generator 14.
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