| 摘要 |
1,121,704. Propelling vehicles and marine craft. HUYCK CORP. 16 July, 1965 [22 July, 1964], No. 17475/68. Divided out of 1,121,703. Headings B7H and B7V. [Also in Division F1] Apparatus for producing a fluid propulsion force in an ambient fluid medium comprises a tapered deflector 214, Fig. 3 positioned coaxially within an open-ended annular shroud, a shield 230 positioned adjacent the deflector so as to form a Coanda aperture 226 therewith, a parabolic surface 224 of the deflector continuously receding from the discharge axis of the aperture and the deflector, the shroud and the shield forming therebetween a convergent/ divergent nozzle. One or more such devices are suspended from a ship's hull by a pressurized fluid conduit 204 having a stabilizing fin 201 and a support 203 having a fin 205. The pressurized fluid may be gaseous e.g. steam or liquid, the latter may be in the vapour phase and it may assume its liquid phase in conduit 212. The fluid flowing from aperture 226 entrains a larger volume of ambient fluid flowing through inlet 208 or through optional vents 246 to provide the propulsive effect. The flow area of outlet 254 may be varied e.g. by flaring conically outwards. The device may be used in marine vessels and vehicles such as automobiles and aeroplanes. |
