Abstract: A fluid delivery device for supplying fluids, particularly automotive fluids supplied to fluid reservoirs. To attain this, a vessel configured to hold a liquid includes a pressurized gas inlet configured to receive gas into the vessel through a passageway in an integral handle upon actuation of a handle-mounted trigger. Liquid is displaced from the vessel by the gas. In an embodiment, the trigger includes a stem having a solid portion and a hollow portion, and actuation of the trigger aligns the hollow portion with the passageway such that gas may flow. Liquid flows through a hose extending from the vessel.

Abstract: In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of the control piston is sealingly guided, while its second end lies with a sealing ring before a chamber fed with parting agent. In the case of the application of control air the sealing ring is shifted out of its cylindrical section 26 into the chamber, so that the feed of parting agent to the spray nozzle is released. If the control air is shut off, then the sealing ring closes the delivery of the parting agent, and the second, larger end of the control piston exercises upon its return movement a reverse suction effect on the connecting passage. Any after-dripping of parting agent is securely prevented.

Abstract: A self-adjusting nozzle for use in injecting pressurized, and optionally pulsating, fluid into a well bore or other conduit for the purpose of cleaning out the bore or conduit, the nozzle having slidably engaged mandrel and tool tip sections, each with an axial bore, and the tool tip having a plurality of axially and circumferentially spaced discharge ports communicating with the axial bores, the mandrel being able to reciprocate inside the tool tip without operator intervention in response to obstructions encountered ahead of, around or behind the nozzle as it enters or leaves the well bore or conduit, thereby sequentially blocking or unblocking some of the discharge ports to direct more of the pressurized fluid against the obstruction.

Abstract: A garden nozzle includes a core piece received in the barrel of the nozzle and the core piece includes an outlet allowing water to come out therefrom. The core piece is in communication with the path defined in the handle and water is provided via the path. A movable member is movably mounted to the core piece and is driven by an operation member connected to the barrel and can be operated by one finger of the user's hand grasping the handle. The position of the movable member changes the relative positions of the outlet and the opening located at a center of the cone-shaped inner periphery of the movable member, so as to obtain different pattern of watering.

Abstract: An air gun with a quick-releasing device has a body, a head tube attached to the body and a detachably functional tip, wherein the quick-releasing device is attached to a distal end of the head tube to secure the detachably functional tip. The quick-releasing device has a slit defined in the distal end of the head tube to communicate with an inner space of the head tube, a locking sheet movably received inside the slit to partially enter the inner space of the head tube, and a locking lever pivotally mounted on the head tube to drive the locking sheet to move in a vertical direction. Thereby, the locking sheet is allowed to leave the inner space of the head tube when a user presses the locking lever to enable easy release of the attached functional tip and then to exchange the original tip for another functional tip.

Abstract: A polyurethane applicator (10) for spraying at high-pressures a liner on the inner circumferential wall of an existing conduit (C) to be rehabilitated. The applicator (10) includes a carriage (12) coaxially guided in the conduit (C) and an atomizer (16) rotatably mounted to the carriage (12) for rotation about the central axis thereof. The atomizer (16) is provided with a nozzle (62) through which the lining mixture is forced out while the atomizer (16) rotates and travels in conduit with the carriage (12).

Abstract: A miniaturized device for producing high pressure in a fluid imposes stringent requirements on the manufacturing process. The device according to the invention consists of a hollow piston displaceably mounted in a cylinder and a valve member which is guided by the hollow piston and mounted so as to be axially movable relative to the hollow piston. The valve member is arranged at one end of the hollow piston inside or immediately in front of the end of the hollow piston. The device is used in a mechanically operated high pressure atomizer. This consists of a two part housing which comprises a pump housing with nozzle, a blocking mechanism, a spring housing with spring, a non-pressurized storage container for the fluid and a medical counter integrated in the spring housing. The valve operates without any auxiliary force, closes very rapidly and is sealed tight against high pressure. The atomizer is safe and simple to operate and environmentally friendly. The fluid is metered extremely accurately.

Abstract: A relatively low pressure inert gas hazard suppression system (20) is provided which is designed to protect a room (22) or the like from the effects of fire or other hazard. The system (20) includes a plurality of pressurized inert gas cylinders (24) each equipped with a valve unit (26); each valve unit (26) is in turn coupled via a conduit (28) to a delivery manifold (30). The respective valve units (26) are operable to deliver gas from the cylinders (24) at a generally constant pressure (usually around 10-100 bar) throughout a substantial portion of the time of gas delivery, to thereby provide effective hazard suppression without the need for expensive high-pressure gas handling and distribution hardware and a reduction in room venting area due to lower room over-pressurization. Each valve unit (26) has a valve body (48) and a shiftable piston-type sealing member (56).

Abstract: A liquid spray module which can be individually used, or which can be easily mounted in ganged side-by-side relation with a plurality of such modules. Each module includes a spray gun cartridge having liquid passages through the liquid to be sprayed, is directed and one or more air passages through which pressurized air may be directed for assisting in atomization of the liquid and controlling operating movement of a valve needle. Each spray gun cartridge further includes a manifold body having a central bore into which the spray gun cartridge is removably mounted and liquid and air inlet and outlet passages which communicate with the liquid and air spray gun cartridge passages. The spray gun cartridge is removable from the manifold body without disconnection of fluid supply lines to the manifold body and without removal of the manifold body from a ganged mounted array of such spray modules.

Abstract: A fuel injector has an injector body extending along a given axis; a tubular valve body housed inside a hole in the injector body and coaxial with the injector body; and an annular chamber defined by the injector body and the valve body. The method of producing the injector includes connecting the valve body to the injector body, and fixing the valve body in a given position along the axis with respect to the injector body by means of a driving operation to interference fit the valve body inside the hole in the injector body.

Abstract: A valve needle (2), in particular for spraycoating apparatus and their spraycoating devices. The valve needle (2) has a shank (4) and a plunger (8) affixed thereon. The shank (4) is made of another material than is the plunger (8). A preferred material for the shank (4) is an industrial ceramic.

Abstract: A liquid crystal dispensing apparatus for controlling the amount of liquid crystal dropped onto a substrate by controlling the tension of a spring. The spring applies a force to a needle that forces the needle toward an opening on the end of the container so as to close the opening. A tension controller controls that length of the spring, and thus its force. A solenoid moves the needle against the spring when an electric source is applied to the solenoid such that the opening is opened. The spring tension controls the time required to return the needle to a position that closes the opening. The spring tension also controls the amount of liquid crystal that is ejected when the opening is opened.

Abstract: A fluid product dispenser includes: a fluid product tank, a dispenser part comprising a pierced membrane connected directly to the tank, a mechanism to vibrate the pierced membrane, and an actuator button to activate the vibration mechanism. The tank is located above the pierced membrane such that the fluid product is supplied to the membrane from the tank using the force of gravity under normal operating conditions. The membrane is connected to the tank by a passage provided with an inlet valve capable of opening and cutting off the passage selectively.

Abstract: A cleaning device for cleaning windshields, headlights and such of vehicles has at least one storage container for a cleaning liquid, at least one supply line, and at least one spray nozzle connected to the at least one supply line. At least one pump is arranged in the supply line and configured to convey the cleaning liquid within the supply line to the spray nozzle. At least one high-pressure pressurizer is connected to the supply line and configured to pressurize the cleaning liquid which is stored in a pressurized tank.

Abstract: A cleaning device for a paint brush comprises a hollow nozzle attached to a source of pressurized cleaning solution such as water, solvent, liquefied hot soap or alike. The distal tip of the nozzle is equipped with a poppet valve such that the body of the valve protrudes from the distal tip. The proximal section of the nozzle is adapted to be attached to a source of cleaning solution, that in the most basic configuration being a common tap water valve. When the water valve is opened, the brush is moved towards the nozzle. Upon engaging with the heel or bristles of the brush, the poppet valve moves inwards and opens the flow of water towards the center of the brush allowing washing out any remaining wet and dissolved paint. In another embodiment of the invention, the cleaning device includes a hollow handle attached to a source of pressurized cleaning solution and equipped with one or more nozzles each having a poppet valve.

Abstract: A solenoid-operated liquid spray gun having a lightweight, corrosion resistant plastic housing which enables the spray gun to be mounted on and be more easily moved by robotic transfer devices. To effect the necessary flux loop within the plastic-housed spray gun for reciprocating a valve plunger in response to energization of the solenoid coil, the spray gun includes a radially disposed flux-directing member adjacent at least one end of the coil. The flux-directing member, while extending radially outwardly a distance less than the diameter of solenoid coil, effects efficient flux direction for operating the solenoid notwithstanding the lack of a magnetic conductive medium provided by the metal housing of conventional solenoid-operated spray guns.

Abstract: A liquid spray module which can be individually used, or which can be easily mounted in ganged side-by-side relation with a plurality of such modules. Each module includes a spray gun cartridge having liquid passages through the liquid to be sprayed, is directed and one or more air passages through which pressurized air may be directed for assisting in atomization of the liquid and controlling operating movement of a valve needle. Each spray gun cartridge further includes a manifold body having a central bore into which the spray gun cartridge is removably mounted and liquid and air inlet and outlet passages which communicate with the liquid and air spray gun cartridge passages. The spray gun cartridge is removable from the manifold body without disconnection of fluid supply lines to the manifold body and without removal of the manifold body from a ganged mounted array of such spray modules.

Abstract: A fluid application device stores seam paste in a reservoir tank 18 and feeds the seam paste to a pressure tank 20 through a feed pump 22. Inside of the pressure tank 20 is maintained under a given air pressure by a pneumatic unit 26, and the seam paste is supplied from the pressure tank 20 to an application nozzle 16 through a supply pipe 24. A level sensor 28 detects fluid level of stored seam paste in the pressure tank 20, and a detection signal is input to a controller 30. The controller 30 controls operation of the feed pump 22 based on the detection signal that is transmitted from the level sensor 28 and also controls a supply amount of the seam paste to the pressure tank 20 to maintain the fluid level in the pressure tank 20 at a fixed level.

Abstract: A fuel injector, especially a fuel injector for injection systems of internal combustion engines, includes a solenoid which works together with an armature and a valve needle to actuate a valve-closure member, which together with a valve-seat surface forms a sealing seat. A longitudinal axis of the valve needle is inclined by a prescribed angle with respect to a longitudinal axis of a valve housing. The armature is linked with an actuating body whose longitudinal axis is inclined with respect to the longitudinal axis of the valve needle and which acts on the valve needle through a hydraulic device.

Abstract: A liquid injection apparatus 10 comprises an injection device 15, and an electro-magnetic injection valve 14 for ejecting pressurized fuel into the injection device. An ejection hole in the electro-magnetic injection valve is connected to a hollow cylindrical hermetically sealed space, which in turn is connected to a liquid ejection nozzle, through a liquid filling port, a liquid supply passage, and a chamber which are included in the injection device. By means of allowing the electro-magnetic injection valve to eject the pressurized fuel at an angle of inclination relative to the center axis of the hollow cylindrical hermetically sealed space, flows of fuel are produced across a wide area in the hermetically sealed space so that large-sized air bubbles are prevented from being formed in the hermetically sealed space.

Abstract: A controlling device for a sprinkler includes multiple seals detachably received in the tube in a watertight manner. Each seal has outlets defined in a top face of the seal and passages defined to respectively communicate with a corresponding one of the outlets. Multiple controlling rods are linearly and movably received in the tube to engage with a bottom face of the seals so as to selectively block the communication between the passage and the outlets such that water inside the tube is controlled to be sprinkled out of the tube.

Abstract: A miniaturized device for pressurizing fluid. The device includes a hollow piston that provides a fluid path and a valve member. The valve member is configured for axial movement so that the valve axis remains parallel to the piston axis. The valve member is arranged at one end of the hollow piston. The valve member may be partially or completely disposed within the hollow piston. The device is particularly adapted for use in a mechanically operated atomizer to produce an inhalable aerosol of a liquid medicament without the use of propellant gas.

Abstract: A fluid distribution device (9) includes a distribution block (10) having an array of fluid flow passages (11) arranged in a plurality of at least first and second groups (15, 16). Valve mechanism (12) is operable for controlling fluid flow through the passages (11). The valve mechanism (12) includes a first series of valve members (19) each associated with a respective one of the groups (15) of flow passages (11), and a second series of valve members (20) each associated with a respective one of the second groups (16) of flow passages (11). Each valve member (19, 20) is movable between a closed position preventing flow through the associated flow passages (11) and an open position permitting flow along those passages (11). When all of the valve members (19, 20) associated with any one flow passage (11) are in the open position, fluid is able to flow through that passage.

Abstract: A valve encased nozzle device comprising a valve chamber having an introduction port for introducing pressurized liquid, and an opening for injecting the liquid, and a valve for closing and opening one or both of the introduction port and the injecting port, wherein the valve is disposed together with a valve driving mechanism in the valve chamber, whereby the introduction port or the injecting port or both are closed or opened by movement of the valve driven by the driving mechanism.

Abstract: A closed circuit fuel nozzle for engaging an adapter on a fuel tank. The nozzle may include a body having an inlet aperture, a tubular assembly, an outlet aperture, and walls forming a closed flow path from the inlet aperture to a tubular assembly. The distal end of the tubular assembly may form the outlet for the nozzle. The tubular assembly may comprise a tube extending in the longitudinal direction and a sealing collar secured proximate the distal end to form the outlet. An articulator may provide resilient articulation of the sealing collar with respect to the tube about lateral and transverse axes. A biasing member may urge the tubular assembly distally in the longitudinal direction. A poppet valve may be selectively translatable in the longitudinal direction and shaped to stop flow through the body when seated against the sealing collar.

Abstract: In a spray gun (1) for atomizing fluid media with the help of compressed air consisting of a housing (11) with a handle (14) and an atomizer nozzle (19), of a guide sleeve which engages in the atomizer nozzle (19) and is supported in the housing (11), as well as of a valve needle (31) which can be operated by means of a trigger handle (26) which is in a pivoting mounting, the valve needle (31) is located in a positive connection with the trigger handle (26) in the area of the guide sleeve (21) by means of a hinge pin (27′). Furthermore, a seal (32) is inserted in the guide sleeve (21) with a U-shaped cross section, the seal (32) being located between a feed line (16) and the hinge pin (27′), with the valve needle (31) being held in a movable arrangement in the seal (32).

Abstract: A die for dispensing a fluid onto a substrate, wherein the die has an movable lip adjacent a fixed lip to form a die opening therebetween. An actuator is mechanically connected to the movable lip and is operable to automatically move the movable lip with respect to the fixed lip in association with a fluid dispensing process, thereby changing a volume of the die opening. The adjustable die is often a slot die and is used with a fluid dispensing valve having an upstream valve ball. The actuator can be an electromechanical actuator such as a piezoelectric actuator or a fluid operated actuator.

Abstract: A fuel injector has an injector body and a fitting for connecting the injector body to a high-pressure fuel supply conduit. The injector body and the fitting are separate elements of the injector, and are connected to each other to connect the supply conduit and grip an end portion of the supply conduit between the injector body and the fitting.

Abstract: A coating material dispensing device includes a port adapted to be coupled to a source of coating material, an actuator for controlling a flow of compressed gas through the dispensing device, and a valve coupled to the actuator to be controlled by the actuator. The valve includes a valve housing, a valve closure member, and a valve seat. The valve closure member is movable in the housing under the control of the actuator between a closed position against the valve seat and an open position away from the valve seat. An inlet port is provided into the housing. The inlet port is oriented on a first side of the valve seat. The inlet port is adapted to be coupled to a source of the compressed gas. An outlet port is provided on the second side of the valve seat.

Abstract: A fluid squirt gun includes a linear flow path provided in a barrel, a nozzle at a tip end of the flow path, a valve seat provided in the flow path, a valve element disposed for movement in an axial direction of the flow path to open and close the valve seat, a spring for pressing the valve element in a valve-closing direction, and a trigger for opening and closing the valve element. The valve element includes a forward pressure receiving face on which fluid in the flow path acts in a valve-opening direction in a closed state of a valve and a reverse pressure receiving face on which the fluid acts in the valve-closing direction in the closed state of the valve and both the pressure receiving faces have substantially equal pressure receiving areas.

Abstract: A fluid dosing device for a pressurized liquid is disclosed, which comprises a chamber (35) which is supplied with pressurized liquid by means of a liquid supply line (17, 19); a valve needle (9) which is guided through the chamber (35), the first end section of said valve needle being able to be lifted and the second end section thereof forming a valve in conjunction with a valve seat disposed on the housing (3). Metal bellows (33) are provided as a leadthrough element for the first end section of the valve needle (9). The metal bellows seal the chamber in said region in a tight manner. A throttle point (37, 39) is provided between the valve needle (9) and the inner wall of the chamber between the metal bellows (33) and the mouth (18) of the liquid supply line (17) leading into the chamber.

Abstract: In a fuel injection valve having a housing pipe, a valve movable reciprocatingly and axially inside the housing pipe, and a body valve having a bottom wall constituting a valve seat with which the valve comes in contact and a side wall whose axial end is connected to a circumferential periphery of the bottom wall and whose the other axial end is fitted to and heat bonded to an end of the housing pipe, the side wall is provided on an outer circumference thereof with a ring shaped groove that is formed in advance before the body valve and the housing pipe are heat bonded to each other and serves to prevent a deformation of the side wall due to heat generated by the heat bonding from being transmitted straight to the valve seat.

Abstract: With a device for applying a coating agent onto a cyclically moved substrate, a uniform coating thickness may be achieved, although the rate of advance is not constant. At least one spray valve is provided which is permanently supplied with coating agent and the nozzle opening of which being adjustable with regard to the size of its effective discharge area in case of change of the rate of advance of the substrate according to the dependency, for a constant layer thickness of the coating agent, on the discharge rate of the coating agent out of the spray valve on the rate of advance of the substrate.

Abstract: A misting system valve assembly comprises a conduit connectable to a pressurized fluid supply. The conduit includes a through opening. A sleeve is telescopically received on the conduit. The sleeve is adapted to support a nozzle. The sleeve has a sleeve opening therethrough for selectively delivering pressurized fluid to the nozzle. The sleeve is moveable on the conduit between an open position where the conduit through opening is in communication with the sleeve opening and a closed position where the conduit through opening is not in communication with the sleeve opening.

Abstract: A kitchen deck side spray assembly for attachment to a water hose includes a spray body having spray openings. There is a water path in the spray body connecting the spray openings with the hose. A valve member is located in the water path and there is a spring biasing the valve member to a normally closed position. A trigger on the spray body is in operative relationship with the valve member for causing movement thereof to operate the spray. A tube is connected to the water hose and there is a quick connect adapter positioned within the spray body. There are cooperating elements on the tube and the quick connect adapter for locking the tube to the adapter to thereby attach the side spray assembly to the hose. The side spray may be disassembled from the hose, completely from above the sink deck, permitting the exterior of the side spray to be replaced without the necessity of work being done underneath the sink deck.

Abstract: A gardening pistol nozzle is provided with an automatic flow control structure including an inner retaining seat located in a handle of the pistol nozzle, two shifting mechanisms located in the handle, and an outer retaining seat located in a control knob of the pistol nozzle. The inner retaining seat and the outer retaining seat are provided with a series of teeth. The control knob is pivoted to the handle such that the outer retaining seat is pressed against by the two shifting mechanisms which are used to actuate the outer retaining seat to slide so as to result in engagement or disengagement of the teeth of the outer retaining seat with the teeth of the inner retaining seat.

Abstract: A one touch valve for activating fluid flow between an inlet conduit and an outlet conduit is disclosed. The valve has a flow cylinder defining an inflow chamber in fluid communication with the inlet conduit and an outflow chamber in fluid communication with the outlet conduit. The flow cylinder includes an end plate and an intermediate plate having a center collar with an aperture. A flexible diaphragm is provided with a sealing surface in contact with the collar to create a seal. The diaphragm has an edge coupled to the intermediate plate and a small diameter hole providing fluid contact between the inflow chamber and an intermediate chamber which is defined by the intermediate plate of the flow cylinder. A plunger is placed on the diaphragm to create a seal with the opposite surface of the diaphragm from the sealing surface. A shaft has one end connected to the plunger and extends through the aperture of the diaphragm.

Abstract: A shower head structure, comprising a body, a front housing, a push button, a water guide member, a flow switch disk, a first water outlet panel, a second water outlet panel, and a third water outlet panel. Thus, the user can operate the push button by his one hand only, so as to switch and adjust the water flow, thereby facilitating the user switching and adjusting the water flow of the shower head. In addition, the user can press the push button to switch and adjust the water flow through the first water outlet panel, the second water outlet panel and the third water outlet panel, thereby enhancing the versatility of the shower head.

Abstract: A system for dispensing liquid material with different configurations of air assisted fiberization or filament movement (e.g., meltblowing, controlled fiberization). In particular, front access for mounting a selected nozzle only requires adjustment of one lever and one fastener. Features of the lever and nozzle allow assisted ejection of the nozzle, even when the nozzle has become adhered to a die body through use. In addition, a nozzle mounting surface of the die body provides a universal interface to the various types of nozzles. An air cavity in the die body and air troughs in selected types of nozzles balance and adjust air flow.

Abstract: A shower nozzle hanger system including a shower nozzle unit having a shower nozzle containing a thin metal plate disposed therein and a shower nozzle hanger unit having a permanent magnet plate secured thereon and a pair of lateral flanges for the shower nozzle unit whereby after using the shower nozzle unit, the shower nozzle unit can be easily and effectively engaged and disengaged wit the shower nozzle hanger unit.

Abstract: A valve needle (2), in particular for spraycoating apparatus and their spraycoating devices. The valve needle (2) consists of a shank (4) and of a plunger (8) affixed thereon. The shank (4) is made of another material than is the plunger (8). A preferred material for the shank (4) is an industrial ceramic.

Abstract: A liquid injection apparatus 10 comprises an injection device 15, and an electro-magnetic injection valve 14 for ejecting pressurized fuel into the injection device. An ejection hole in the electro-magnetic injection valve is connected to a hollow cylindrical hermetically sealed space, which in turn is connected to a liquid ejection nozzle, through a liquid filling port, a liquid supply passage, and a chamber which are included in the injection device. By means of allowing the electro-magnetic injection valve to eject the pressurized fuel at an angle of inclination relative to the center axis of the hollow cylindrical hermetically sealed space, flows of fuel are produced across a wide area in the hermetically sealed space so that large-sized air bubbles are prevented from being formed in the hermetically sealed space.

Abstract: The spray gun includes a primary port for receiving a primary material such as adhesive or similar materials, for dispensing. The spray gun further includes a secondary port to receive an aerosol-based cleaner which is stored in an aerosol container within the handle of the spray gun. The valves associated with the primary and secondary ports are sequenced such that during ordinary depression of the trigger to apply the primary material, the aerosol-based cleaner is momentarily “poofed” through the nozzle to clean the nozzle prior to the application of the primary material. After the primary material has been applied and the trigger is released, the aerosol-based cleaner is again momentarily “poofed” through the nozzle to clean the nozzle.

Abstract: This channel switching apparatus comprises a first channel switching device (303) for switching a first main channel and a second main channel, a second channel switching device (305) for switching a third main channel and a fourth main channel, a third channel switching device (307) for switching a fifth main channel and a sixth main channel, and a fourth channel switching device (308) for switching a seventh main channel and an eighth main channel. Thus, a channel switching apparatus which can readily and correctly perform even by touch can be provided.

Abstract: A steam output control structure includes a hose extended from the housing of a steam cleaner and having a grip at the end, a control valve mounted in the grip for output f steam, a heat-resisting high-tension tube connected between the control valve and the steam output port of the steam cleaner, the control valve having a spout for steam output and a valve rod supported on a spring member and adapted to close the steam passage between the spout and the heat-resisting high-tension tube, and a control knob pivoted to the grip and adapted to open the valve rod for letting steam pass from the heat-resisting high-tension tube to the spout.

Abstract: A pistol nozzle is provided with a flow control structure which is formed of a main body, an inner rack, an inner rack, a control lever, and two switching members. The two switching members are used to actuate the outer rack to slide toward one side to engage the inner rack so as to locate securely the control lever. When the outer rack is actuated to slide toward other side to disengage the inner rack, the control lever is set free.

Abstract: A pump apparatus has an electric motor having an impeller fixed to a rotating axis thereof driven based on signals from an injection control unit to rotate in a normal direction and, then, switched to rotate in a reverse direction so that, when the motor is rotated in the normal direction, the washer liquid is sucked from a second intake conduit and discharged via a first discharge port from a first injection nozzle and, when the motor is rotated in the reverse direction, the washer liquid is sucked from a first intake conduit and discharged via a second discharge port from a second injection nozzle. Since the washer liquid is not injected at the same time from the first and second injection nozzles, an injection amount per unit time of the washer liquid is relatively small, which makes the pump apparatus more compact.

Abstract: The inventive device comprises at least one spraying device (1) and several supply lines (8) for supplying said spraying device with the coating product, said lines being linked to a connecting assembly (3). Each downstream end (6) of a line is provided with a gate valve which can be controlled by an actuator (30) which is itself controlled and which is positioned at the entrance to a product supply pipe (2) for the spray device (1). The actuator (30) and the connecting assembly (3) can be displaced in relation to each other (F1-F4) in such a way that the actuator (30) can be positioned selectively facing a downstream end (6) of one of the supply lines (8) and can manoeuvre the valve of said line. The ends (6) of the lines arc arranged in rows and columns and an assembly (30) comprising the actuator and connected to the supply pipe (2) is mobile parallel to a plane surface (5a) where these line ends (6) open out.

Abstract: A fuel injector having a piezoelectric actuator, which activates a shutter to move the shutter in a work direction between a closed position and an open position; the piezoelectric actuator is housed inside a casing having an inner chamber insulated from the fuel, and an outer surface wet by the fuel.

Abstract: Fuel injector provided with a piezoelectric actuator, a valve activated by the piezoelectric actuator and regulating a fuel supply that flows in a working direction, and a mechanical transmission placed between the piezoelectric actuator and the valve; an expansion of the piezoelectric actuator displaces the valve in the working direction from a closed position to an open position in an opposite direction to that of the fuel outlet.