초록 ▼

An electric power generator driven by a fluid circulating under pressure in a pipe (9) includes an internal moving contact (1) placed inside a non-magnetic section (10) of the pipe (9), and a stator (4) placed around the pipe (9). The internal moving contact (1) includes permanent magnets (2), a rot

An electric power generator driven by a fluid circulating under pressure in a pipe (9) includes an internal moving contact (1) placed inside a non-magnetic section (10) of the pipe (9), and a stator (4) placed around the pipe (9). The internal moving contact (1) includes permanent magnets (2), a rotational drive means (3), and means (7 and 8) of support. The electric power generator does not require any sealed joints for the passage of mechanical shafts or electric cables and is particularly adapted for the production of electricity from dangerous fluids which circulate in pipes under high pressure. The electric power generator has application in gas and liquid transport networks, particularly at isolated hydrocarbon production sites.

대표청구항 ▼

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] An electric power generator, comprising:an internal moving contact inside a non-magnetic section of a pipe in which a fluid circulates, including,at least one permanent magnet,a mechanical drive power

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] An electric power generator, comprising:an internal moving contact inside a non-magnetic section of a pipe in which a fluid circulates, including,at least one permanent magnet,a mechanical drive power element coupled to the permanent magnet and acted upon by the circulating fluid to produce a rotation of the permanent magnet in response to circulation of the fluid,and at least one bearing supporting said permanent magnet and the mechanical drive power element in the pipe; anda stator placed around the section of the pipe, including,a permanent magnetic circuit having at least one induction coil, rein the stator is offset longitudinally with respect to the permanent magnet of the internal moving contact, comprising:an external moving contact placed between the pipe and the stator, at least made partially of a ferromagnetic material, and positioned longitudinally with respect to the stator, including,at least one external permanent magnet on an outer periphery of the external moving contact, andat least one internal permanent magnet on an inner periphery of the external moving contact and positioned longitudinally with respect to the permanent magnet of the internal moving contact, rein the external moving contact is driven magnetically in rotation by the internal moving contact.