Abstract: This atomizer (P) comprises: a body comprising an inner portion (20) and an outer portion; an atomizer member (1); outlet channels (42) about the spraying axis (X1) for ejecting air (J42) so as to shape the spray of material (J1); an outlet chamber (324) communicating with the outlet channels (42); and an inlet duct (201) for feeding air to the outlet channels (42). This atomizer (P) further comprises: at least two intermediate chambers (210, 230, 250) juxtaposed and extending about the spraying axis (X1); axial intermediate channels (221-224, 241-248), two juxtaposed intermediate chambers (210, 230, 250) being interconnected via a set of intermediate channels (221-224, 241-248) distributed about the spraying axis (X1); and outlet ducts (261-268) distributed about the spraying axis (X1).

Abstract: The invention relates to a station (S) for reloading a sprayer (1) provided with a tank (10), said station comprising: a means (121) for coupling to at least one coating material circuit (70-79); a clamping unit (200) that defines an area (250) for receiving a sprayer (1); at least one accumulator (110, 120, 130, 140, 150), the volume of which is greater than or equal to the volume of the tank (10), each accumulator (110, 120, 130, 140, 150) being connected to at least one respective circuit (20, 70-79) by the coupling means (121; 170-179); means (125, 120.1, 120.2) for pressurizing the accumulator (110, 120, 130, 140, 150); means (121, 123-153) for connecting each accumulator (110, 120, 130, 140, 150) to the clamping unit (200); and a member (222) for connecting the clamping unit (200) to the tank (10).

Abstract: This valve (100) comprises: a body (101); a first channel (III) for channelling the flow of a fluid; a second channel (112) for channelling the flow of a fluid; a first valving element (130) which is movable translationally in a first direction (X112), between an open position and closed position of the or each first channel (111), the body (101) fouling a first seat (123) for the first valving element (130); and a second valving element (130) which is movable translationally in a second direction (X112), between an open position and a closed position of the or each second channel (112); the first direction (X112) and the second direction (X112) being parallel or coinciding with each other. The first valving element (130) defines a housing (140) for the second valving element (130). The first valving element (130) forms a second seat (136) for the second valving element (130).

Abstract: An installation for spraying a multi-component coating material composed of at least one robot having a moving portion carrying at least one electrostatic sprayer, the coating material having an electrically-conductive component together with at least one second component that is electrically insulating or poorly conductive. The installation further includes a main tank fitted with a unit for making a temporary connection with a circuit for dispensing the first component, and being raised to a high voltage when the connection unit not connected, and a feed circuit for continuously feeding the at least one second component. The main tank and the at least one second component feed circuit are carried by the moving portion of the robot and connected to feed the sprayer.

Abstract: This device comprises a sprayer (10) and a reservoir (9) for feeding the sprayer with fluid. The reservoir (9) defines a cylindrical housing (L9) in which there slides (F1) a piston (91) forming a moving wall (91a) for a storage volume (V9) for storing the coating fluid. The housing (L9) is defined by a jacket (92) placed in a support-forming body (95). The jacket (92) has an end wall (93) co-operating with the peripheral wall (96) of the jacket (92) and with the piston (91), to define the above-mentioned storage volume (V9). No interstice are present in which the coating fluid could accumulate, thereby making the reservoir (9) easier to clean.

Abstract: The invention relates to an electronic board that comprises: a planar projection plate (42) provided between an intake opening (70) and a discharge opening (72); and a plurality of rectilinear nozzles (86-90) extending through said plate along a projection direction, the projection direction of each nozzle defining an angle relative to a direction perpendicular to a sole (78) of the electronic component (6) to be cooled, the angle ? being comprised in a range of ?30 and +30°.

Abstract: The invention concerns a rotary nozzle combination (P) for coating product comprising an atomizing bowl (3) and a rotor (11) adapted to rotate the bowl about a geometrical axis (X-X?), and means (4, 5, 6, 7) for controlling the presence and/or proper mounting of the bowl (3) on the rotor (11). The rotor (11) is spaced apart from a non-rotating part (P1) and the control means comprise first means (4, 5) enabling a force (F3) to be applied on the bowl (3) tending to vary the thickness of an air-film of the pneumatic thrust bearing (P1), as well as second means (7, 8) for determining the air pressure in the bearing (P1). The pressure of air in the thrust bearing (P1) can be determined when the latter is normally supplied and compared with at least one reference value.

Abstract: The invention relates to a rotary projector for a coating product that comprises a spraying member (1) having at least one ridge (12) capable of forming a jet of product, a means for rotating the member (1), a stationary body (2) having primary (4) and secondary (6) openings formed on primary and secondary outlines surrounding the rotation axis (X1) of the member (1) and for respectively outputting primary and secondary air jets (J6). Each primary air jet is inclined relative to the rotation axis (X1) in a primary direction such that the primary air jet freely crosses the area where the ridge (12) is located, while each secondary air jet is inclined relative to the rotation axis (Xl) in a secondary direction (J6) having at least one axial component (A6) and one radial component (R6), said components (A6, R6) being such that the secondary air jet (J6) impinges on an outer surface (13) of the spraying member (1).

Abstract: The invention relates to a valve (1), comprising a body (2), within which a needle (3) moves, which can rest with sealing against a seat (23), fixed to the body (2). The needle (3) is magnetically coupled to an actuator body (5), across a closed and a magnetic chamber (4) provided with several magnets (52) between which magnetic bodies (53) are interspersed. The needle (3) has no magnets and is provided with ribs (36) made from a magnetic material. According to the invention, an improved magnetic coupling may be achieved, whereby the thickness and the relative separation of the ribs (36) are largely equal to the thickness (e53) and the relative separation (l52) of the magnetic bodies (53).

Abstract: The invention concerns a device comprising a sprayer (10) and a reservoir (9) feeding product to the sprayer. Said reservoir (9) defines a cylindrical housing (L9) wherein slides (F1) a piston (91) forming a mobile wall (91a) for a volume (V9) for storing coating product. Said housing (L9) is delimited by a sleeve (92) arranged in a support-forming body (95). The sleeve (92) is provided with a base (93) delimiting, with the peripheral wall (96) of the sleeve (92) and the piston (91), said storage volume (V9). There is no interstice wherein the coating product could accumulate, thereby facilitating the cleaning of the reservoir (9).

Abstract: The inventive device for electrostatically projecting a coating product comprises a spray gun provided with voltage increasing means for producing a high direct voltage for a product electrostatic charge, wherein said spray gun is provided with a controllable valve for controlling an atomizing air flow inside the spray gun in the direction to a spraying head. A pressure sensor integrated into the spray gun is used for detecting the atomizing air pressure (P) representative value downstream of the valve and for delivering a signal (S1) for controlling the power supply of the voltage increasing means. Said invention makes it possible to control the power supply of the voltage increasing means according, in particular, to the signal (S1) received from the sensor.

Abstract: The invention relates to a direct-current high-voltage generator that comprises: current unidirectional switches (74, 76); a driver unit (130) capable of controlling the switching operation from an on-state to an off-state of a switch (74) only when a switch connected in parallel is in the on-state

Abstract: The bowl according to the invention is equipped with first magnetic coupling means adapted to cooperate with second complementary magnetic coupling means fixed on a non-rotary part of a sprayer, these first and second coupling means being adapted to exert an at least partially axial effort inducing the coupling in rotation of the bowl with a corresponding drive member. The radial width of an annular or truncated surface defined by the first coupling means is greater than the total radial width of the coupling means borne by the non-rotary part.

Abstract: The invention concerns a rotary nozzle combination (P) for coating product comprising an atomizing bowl (3) and a rotor (11) adapted to rotate the bowl about a geometrical axis (X-X?), and means (4, 5, 6, 7) for controlling the presence and/or proper mounting of the bowl (3) on the rotor (11). The rotor (11) is spaced apart from a non-rotating part (P1) and the control means comprise first means (4, 5) enabling a force (F3) to be applied on the bowl (3) tending to vary the thickness of an air-film of the pneumatic thrust bearing (P1), as well as second means (7, 8) for determining the air pressure in the bearing (P1). The pressure of air in the thrust bearing (P1) can be determined when the latter is normally supplied and compared with at least one reference value.

Abstract: The invention relates to a sprayer (1), comprising a pneumatic turbine (5), capable of rotating a bowl (6), the turbine being connected to a pressurized gas supply line (11), for driving said turbine and to a drive gas exhaust line (12). The exhaust line (12) is equipped with an inner sleeve (13) which defines the exhaust gas flow volume (V13), an annular gap (E) with a non-zero thickness being provided between the outer surface of the sleeve (13) and the inner surface of the line (12). The structure is compatible with a temperature gradient between the optionally low-temperature exhaust gas flow volume (V13) and the material (2) which forms the exhaust line (12), the risk of condensation being thus limited.

Abstract: The bowl according to the invention is provided with magnetic elements disposed around a male part which is adapted to be engaged in a central channel of a drive member, the magnetic elements forming outer radial flanges with respect to this male part. In the spraying device, the bowl is associated with a drive rotor, magnetic coupling means being provided which comprise magnetic bodies disposed on either side of at least one magnet borne by the rotor, while the bowl bears ribs formed in a magnetic material. The effort of magnetic coupling obtained has a radial component with respect to the axis of rotation of the bowl.

Abstract: This device for supplying coating products to the atomizers of an installation for spraying coating products on objects displaced by a conveyor, comprises at least one principal tank adapted to supply secondary tanks each intended for an atomizer, and means for displacing this principal tank up to the vicinity of the secondary tanks.

Abstract: The bowl according to the invention is equipped with first magnetic coupling means adapted to cooperate with second complementary magnetic coupling means fixed on a non-rotary part of a sprayer, these first and second coupling means being adapted to exert an at least partially axial effort inducing the coupling in rotation of the bowl with a corresponding drive member. The radial width of an annular or truncated surface defined by the first coupling means is greater than the total radial width of the coupling means borne by the non-rotary part.

Abstract: The invention concerns a device (10) for supplying a powdery coating product to a sprayer (1) in an installation spraying such a product. The invention is characterized in that it comprises at least two modules (11, 14) connected each to a source (B1-B4) of coating product and forming each part (112, 113) of a common manifold (C) connected to said sprayer (1) for circulating said product (P1-P4).

Abstract: This device for supplying coating products to the atomizers of an installation for spraying coating products on objects to be displaced by a conveyor, comprises at least one principal tank, adapted to supply secondary tanks each intended for an atomizer, at least one station for distributing the contents of the principal tank between the secondary tanks, and means for displacing the full secondary tanks towards application robots adapted to displace said atomizers opposite said objects. Each secondary tank forms with the atomizer for which it is intended, a sub-assembly adapted to be displaced, by the afore-mentioned displacement means, between an application member and the distribution station, and vice versa.