Abstract: The invention relates to an assembly for exchanging heat between first and second fluids, the assembly comprising a central manifold communicating with one of the inlet and the outlet for the first fluid; an annular manifold disposed around the central manifold and communicating with the other one of the inlet and the outlet for the first fluid; a plurality of heat exchangers interposed radially interposed between the central manifold and the annular manifold; and a plurality of axial inlet manifolds communicating with the inlet for the second fluid, and a plurality of axial outlet manifolds communicating with the outlet for the second fluid, the axial inlet and outlet manifolds being interposed circumferentially between the heat exchangers. According to the invention, the assembly has an inlet chamber disposed at a first axial end of the heat exchangers and putting the inlet(s) for the second fluid into communication with at least a plurality of axial inlet manifolds.

Abstract: The invention relates to a meter including a counter provided with an electronic display member and covered by a cap (2) presenting at least one window (2A) enabling an electronic screen (3) that is centered on the vertical central axis (X) of the meter to be viewed, said cap (2) carrying official information on its outside face (4). According to the invention, said cap (2) is pivotable about said axis (X) and the meter includes at least one static sensor (5, 6) responsive to pivoting of said cap (2), said sensor controlling the display of said screen (3) in such a manner that the data displayed by the screen has the same reading direction (S1, S2) as said official information (4).

Abstract: The invention relates to a meter including a counter provided with an electronic display member and covered by a cap (2) presenting at least one window (2A) enabling an electronic screen (3) that is centered on the vertical central axis (X) of the meter to be viewed, said cap (2) carrying official information on its outside face (4). According to the invention, said cap (2) is pivotable about said axis (X) and the meter includes at least one static sensor (5, 6) responsive to pivoting of said cap (2), said sensor controlling the display of said screen (3) in such a manner that the data displayed by the screen has the same reading direction (S1, S2) as said official information (4).

Abstract: The invention relates to an assembly for exchanging heat between first and second fluids, the assembly comprising a central manifold communicating with one of the inlet and the outlet for the first fluid; an annular manifold disposed around the central manifold and communicating with the other one of the inlet and the outlet for the first fluid; a plurality of heat exchangers interposed radially interposed between the central manifold and the annular manifold; and a plurality of axial inlet manifolds communicating with the inlet for the second fluid, and a plurality of axial outlet manifolds communicating with the outlet for the second fluid, the axial inlet and outlet manifolds being interposed circumferentially between the heat exchangers. According to the invention, the assembly has an inlet chamber disposed at a first axial end of the heat exchangers and putting the inlet(s) for the second fluid into communication with at least a plurality of axial inlet manifolds.

Abstract: A static fluid meter includes a flow rate sensor having a set of stationary measuring parts, and a measurement tube having one opening that serves as a fluid inlet and another opening as a fluid outlet, the tube containing internally a first set of said measuring parts and supporting externally a second set of said measuring parts. An outer case into which said measurement tube is inserted and fastened in leaktight manner, contains at least parts for processing data from said sensor. The case is made from a box provided with two through orifices in its sides for passing the measurement tube assembly and for leaktight fastening to corresponding flanges arranged on said measurement tube.

Abstract: An optical detector device for a counter, comprising a consumption indicator, formed from a rotating disc (4) with a section called active (4A) and optical elements of the receiver and emitter types opposite the disc. The received signal from which is used to infer the number of rotations of the disc and which comprises at least two of the optical elements (6A, 6B) of one type and at least one of the optical elements (7) of the other type. The section (4A) is a reflecting section with a center angle of 45 to 225 DEG and the two optical elements of one type (6A, 6B) are emitting elements, emitting a beam of light, where the lines connecting each trace (S(6A), S(6B)) of the beams on the disc (4) to the center of the disc form an angle at the center which is not zero.

Abstract: An optical detector device for a counter, comprising a consumption indicator, formed from a rotating disc (4) with a section called active (4A) and optical elements of the receiver and emitter types opposite the disc. The received signal from which is used to infer the number of rotations of the disc and which comprises at least two of the optical elements (6A, 6B) of one type and at least one of the optical elements (7) of the other type. The section (4A) is a reflecting section with a center angle of 45 to 225 DEG and the two optical elements of one type (6A, 6B) are emitting elements, emitting a beam of light, where the lines connecting each trace (S(6A), S(6B)) of the beams on the disc (4) to the center of the disc form an angle at the center which is not zero.

Abstract: An optical detection device for a counter, comprising a consumption indicator, formed from a rotating disc (4), provided with at least one section called active and optical elements of the emitter type and receiver type, opposite the disc, the received optical signal from which is used to infer the number of rotations of the disc. According to the invention, the disc (4) comprises at least three sectors (4A, 4B, 4C) with a central angle of 120°, each sector being covered on the face thereof facing the outside of the counter (1) with a different color. Said optical elements comprise at least one emitter element (6), emitting a beam of light with at least two different colors ands a receiver element (7) for a reflected light beam.

Abstract: An optical detection device for a counter, comprising a consumption indicator, formed from a rotating target (4) and optical elements of the emitter type and receiver type, at least one of which is opposite the target, the received optical signal from which is used to infer the number of rotations of the disc. The above comprises at least two optical elements (6A, 6B) of one type and at least one optical element (7) of the other type. The target (4A) is an opaque disc section with a centre angle, called the first angle (?), of 45 to 225°. The two optical elements of one type (6A, 6B) are emitter elements of a beam of light, the beam of light lies outside the target (4) and the device further comprises at least one mirror (4A, 4B), reflecting each optical beam onto the target trajectory.

Abstract: The present invention relates to a system for detecting the positioning of a remote measuring module (2) placed on a fluid meter (1), a wall (2A) associated with said module being disposed close to a wall (1A) associated with the meter. According to the invention, it comprises at least a first electrically conductive element (10) fixed to said wall (1A) of the meter (1) and at least two second electrically conductive elements (20A, 20B) fixed to said wall (2A) of the module (2), and placed facing the first element (10) when the module is correctly positioned on the meter, the second elements are connected electrically to an electronics card (21), one of the second elements (20A) being a voltage-emitter electrode and the other of the second elements (20B) being a voltage-receiver electrode.

Abstract: The internal structure comprises a bed (5) supporting the core (3) of the reactor and supplying liquid metal to the core, plating (6) resting on the bottom of the main vessel (1) of the reactor and an internal vessel (8) separating the hot collector (12) from the cold collector (13) of the liquid metal. The internal vessel (8) is directly fixed to the upper part of the bed (5) which rests on the plating (6) through the medium of slidable bearing means (21), (22). The bed (5) is connected to means (18) for supplying cooling liquid metal in a zone located at its periphery and outside the internal vessel (8) and the plating (6). Assemblies (31) providing a lateral neutronic protection are fixed to the bed (5) at the periphery of the fuel core (3).

Abstract: The upper part of the vessel (3) is cooled as a result of the circulation of cooled sodium (27). The cooled sodium coming form the lower part of the reactor core is introduced into a first collector (15) via pipes (17) and then overflows into a second collector (16). The second collector (16) or return collector is delimited by an overflow sleeve (18) and by an inner sleeve (21), the height of which is substantially less than the height of the overflow sleeve (18). The lower part of the inner sleeve (21) is connected to the overflow sleeve (18) by an annular plate (22) ensuring the stiffening of the sleeve (18). The height of the sleeve (21) is preferably between one-third and third of the height of the sleeve (18). This prevents vibrations from being generated during the circulation of the sodium.