| 摘要 |
1,196,756. Parachute canopy vents; aircraft wing slots; sails. P. M. LEMOIGNE. 7 Nov., 1967 [18 Nov., 1966], No. 50640/67. Headings B7G, B7V and B7W. [Also in Division F2] A member subject to an airflow (e.g. a parachute canopy, an aerofoil of a flying device, or a sail of a ship) has a passage therethrough from the high pressure to the low pressure side, the passages having a cross-section which varies along its length. In one form shown in Figs. 9 and 10, a parachute gore 6 has an opening from L to L<SP>1</SP> through which air enters a "blister" 28 where it departs through a nozzle formed by a panel 24 overlying a part 22 of the gore, to flow along the low pressure surface. The blister "28" is made up of a lenticular panel 28 and two trapezoidal panels 30, 32, alternatively rectangular and trapezoidal panels may be used. |
