초록 ▼

A device for producing a force when in a moving fluid, such as air or water, and a method for using said device. The device may be placed in a fluid moving in a first direction for producing a force in a second direction, which is substantially transverse with respect to the first direction. The dev

A device for producing a force when in a moving fluid, such as air or water, and a method for using said device. The device may be placed in a fluid moving in a first direction for producing a force in a second direction, which is substantially transverse with respect to the first direction. The device avoids the use of large sail areas needed where the force derived from wind is proportional to said area. The device according to the invention comprises an elongated body having in cross-section a rounded symmetrical profile, which defines an elongated and rounded leading portion whose thickness increases from the front to the rear and a rounded trailing portion whose thickness decreases from the front to the rear, the leading portion being longer than the trailing portion. The device according to the invention is also provided with at least one flap, which projects from the body and which is located on the trailing portion of the profile.

대표청구항 ▼

A device which is to be placed in a fluid moving in a first direction in order to produce a drive force in a second direction which is substantially transverse with respect to the first direction, wherein said device comprises an elongated body having in cross-section a rounded and symmetrical profi

A device which is to be placed in a fluid moving in a first direction in order to produce a drive force in a second direction which is substantially transverse with respect to the first direction, wherein said device comprises an elongated body having in cross-section a rounded and symmetrical profile with respect to an axis of symmetry which defines with the first direction an angle of incidence in the second direction, said profile defining a rounded and elongated leading portion whose thickness increases from the front to the rear and a rounded trailing portion whose thickness decreases from the front to the rear, the maximum thickness of the profile being between 50 and 100% of its length in the direction defined by its axis of symmetry, the leading portion being longer than the trailing portion, the device also comprising means for sucking the fluid into the body in a suction area located on a first side of the profile on which said force is to be produced, at least on the trailing portion of the profile, and at least one flap which projects with respect to the body, said flap being located on the trailing portion of the profile, on a second side of the profile opposite to said first side.