Abstract: A treatment solution supply apparatus that supplies a treatment solution from a treatment solution supply source via a treatment solution supply pipe to a supply nozzle, includes: electrodes that are provided at the treatment solution supply pipe and apply a DC voltage to the treatment solution in the treatment solution supply pipe; a power unit that applies the DC voltage to the electrodes while freely reversing a polarity of the DC voltage; a cleaning solution supply pipe connected to the treatment solution supply pipe and configured to supply a cleaning solution from a cleaning solution supply source to the treatment solution supply pipe; and a waste solution pipe that drains the cleaning solution passed through a position of the treatment solution supply pipe where the electrodes are provided.

Abstract: A feed tube is provided in a rotational shaft that is rotated by a motor. The feed tube includes a connecting member that includes a paint supplying port, a tube body including a base end connected to the connecting member and a front end that extends in the rotational shaft toward a rotary atomizing head, a positioning member provided in the front end of the tube body and including a tube positioning hole, and a paint tube including a base end connected to the paint supplying port of the connecting member and a front end inserted through the tube positioning hole of the positioning member. The paint tube is formed of a tubular body in an inside of which a paint passage is formed by using a resin material having water repellency.

Abstract: The harmful effects of accumulating droplets of process liquid on the outer surface of a dispense nozzle are prevented by equipping an apparatus for process wafer-shaped articles with a blow-off block that blows the droplets off the nozzle outer surface before they can coalesce and drop in an uncontrolled manner onto the work piece. The nozzle preferably has a polished and tapered outer surface to aid in blowing off any accumulated droplets of process liquid from the outer surface.

Abstract: An exhaust gas treatment device for a diesel engine is capable of smoothly starting the generation of a combustible gas and is provided with a small combustible gas generator. A core material is fitted in the center portion of an annular wall to form an air-fuel mixing chamber between the inner peripheral surface of the annular wall and the outer peripheral surface of the core material. An air-fuel mixture gas in the air-fuel mixing chamber is adapted to be supplied from the end of the air-fuel mixing chamber to a combustible gas generating catalyst to a portion near the center thereof. A heater is used as the core material, the heat dissipating outer peripheral surface of the heater is exposed to the air-fuel mixing chamber. Heat is dissipated directly from the heat dissipating outer peripheral surface of the heater to the air-fuel mixing chamber when starting the generation of the combustible gas.

Abstract: A color change valve device includes: a manifold including on an inside a paint passage, and to which connector passages are provided to radially penetrate therethrough at plural locations axially spaced from each other; a wash air valve and a wash liquid valve connected to the connector passages at a most upstream side among the respective connector passages in the manifold; paint valves connected to the connector passages in the manifold to be positioned at a downstream side of the respective valves; and a swirl flow forming member provided in the paint passage in the manifold for forming a swirl flow by the wash air and the wash liquid, wherein the swirl flow forming member is arranged across an entire length of the paint passage.

Abstract: A method for multi-agent fogging. The method includes pressurizing a first agent to a first range of pressure. The method also includes pressurizing a second agent to a second range of pressure. The method also includes pressurizing a gas to a gas range of pressure. The method also includes atomizing at least one of the first and second agents at a nozzle to mix with the pressurized gas. The method also includes applying the atomized mixture to fog a space.

Abstract: A jetting apparatus for jetting droplets of viscous medium onto a substrate and a method of improving the performance of the jetting apparatus are provided. The jetting apparatus includes a jetting outlet through which the droplets are jetted, a flow generator for producing a flow of air past the jetting outlet for removing viscous medium residue at the jetting outlet, a receptacle for receiving viscous medium residue transported by the air flow away from the jetting outlet, and a flow path for the air flow between the jetting outlet and the flow generator, via the receptacle. A flow sensor is arranged in the flow path for measuring the air flow. An air flow signal representative of the air flow is obtained, the air flow signal is evaluated for determining at least one status of the jetting apparatus, and an indication of the status is provided.

Abstract: An anti-fouling device for an internal combustion engine aftertreatment injector includes a member mountable as an interface between an exhaust conduit and the aftertreatment injector. The member has an inlet to receive air from an air source, and is formed with a passageway to guide the received air to at least one outlet to direct the air to a nozzle of the injector. The air flow surrounds the nozzle to prevent or inhibit exhaust gas from the exhaust conduit from contacting the nozzle.

Abstract: A spray nozzle for two-componet flue gas cleaning nozzles. the spray nozzle includes an output or mixing chamber and at least two through bores which lead to the output or mixing chamber and are each connected to a fluid line. At least one through bore is embodied in such a way that it is self-cleaning and/or a cleaning device is provided for at least one through bore.

Abstract: An atomizer for coating, for example automobile bodies, add-on parts and/or truck cabs is provided. The atomizer may be configured to apply one multi-component coating agent and one single-component coating agent from one application element, or to apply two different multi-component coating agents from one application element.

Abstract: A spray system for spraying a secondary fluid into a primary fluid. The secondary fluid is gaseous, liquid or contains fine particulate solids to be dispersed in the primary fluid. The spray system has a central nozzle for the primary fluid and a nozzle for the secondary fluid. The nozzle housing has a tubular design and the central nozzle is provided with a central passage for the primary fluid. The passage, as seen in the flow direction, has convergent inlet region, a constriction and a divergent outlet part. An outlet opening for the secondary fluid is arranged on the downstream end of the nozzle housing and an outlet opening generates a spray jet of secondary fluid that surrounds the primary fluid exiting the central passage in a substantially ring-shaped manner.

Abstract: A self cleaning header assembly for use within a spray application system includes a plurality of spray guns for spraying a mix of air and liquid, e.g., an adhesive, and comprises a cleaning mechanism including one or more wash nozzles and a shroud. During a cleaning cycle, the shroud is closed and the spray guns rotate to approach the wash nozzles. The wash nozzles apply pressurized liquid, e.g., water, to the spray gun nozzles to remove excess adhesive that may affect the spray pattern and flow. After the washing cycle is complete, the spray guns are rotated to again face the target of interest and the shroud is reopened.

Abstract: An intermediate reserve tank for temporarily storing a conductive coating medium is provided in a coating medium supply passage for supplying the conductive coating medium from a color switch valve mechanism to a spray gun. A block valve mechanism for electrically insulating the color switch valve mechanism and the intermediate reserve tank is provided. A coating medium extrusion portion for supplying water or a cleaning solution is connected to a transmission passage between the intermediate reserve tank and the spray gun via a switch valve. When an amount of the coating medium necessary until an end of a coating operation becomes a predetermined amount, the conductive coating medium is extruded by the water or the cleaning solution by switching the switch valve.

Abstract: A solvent piston 22 shuttles between first and second positions. In the first position, high pressure air applied to the rear 22a of the solvent piston 22 closes a solvent bore 24 around the solvent piston 22 and prevents passage of solvent into the mix chamber 26. In the second position, high pressure air is applied to the front 22b of the solvent piston 22 causing it to retract slightly thereby uncovering the solvent bore 24, closing off the solvent inlet 28 and allowing a slug of solvent to mix with the purge air 32 and pass from the solvent outlet 30 into the mix chamber 26. The solvent is either self contained in the applicator or plumbed eternally to the gun.

Abstract: A foam dispensing device uses a single actuator to actuate two concentric pistons, one for an air chamber and one for a telescopically oriented liquid chamber. In all of the various embodiments the liquid chamber stops its actuation first and can continue to move along with the single actuator and the air chamber continues to dispense air. The air and liquids are dispensed into foaming chamber and then dispensed. The liquid chamber can continue to move because the liquid chamber is attached to the pump system by a deformable connector or some form. This arrangement allows for a foaming device that uses just one actuator that has the ability to dispense foam in the first phase and just air to clear out the nozzle effectively in the second phase.

Abstract: A multiple valve fluid manifold and line splitter assembly includes a flush valve mounted on two or more spool valves with flush-faced seal glands mounted on a common manifold block. When one or more paint line valves close, the manifold block continues to supply the open paint line valve circuits with paint. The closed paint line valve can then be completely flushed without unflushed residuals remaining in dead spots, cavities or pockets of the spool valve. The complete manifold valve assembly can be flushed out by flushing solvent through the inlet port of the manifold block and out through the open line valve circuits of the system.

Abstract: A device for guiding powdery fluidic media, in particular powder paint, including a receptacle which is provided with an inner chamber for the media which is to be guided, and from where the medium is suctioned via a connection channel which can be closed by a valve body. The connection channel and the valve body comprise, respectively, an upper end area formed in such a manner that an annular Venturi nozzle is formed therebetween which is used as a pump. The valve body is inserted in a sealed manner in the end region of the connecting channel by a sealing section when in the closed position thereof and comprises a conveyor gas channel which can impinged upon by conveyor gas, through which the conveyor gas can be guided to the connection channel in the vicinity of the sealing section, essentially, in the direction of flow of the medium.

Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.

Abstract: A foam dispensing assembly comprises a dispensing head and a manifold assembly. The manifold assembly includes a purge portion for supplying a gas and a cleansing fluid to the dispensing head, a first supply portion for supplying a first fluid to the dispensing head and a second supply portion for supplying a second fluid to the dispensing head. Each of the purge portion, the first supply portion and the second supply portion include a plurality of check valves and flow control valves for controlling the flow of the first fluid, the second fluid, the gas and the cleansing fluid through the manifold assembly. Each of the first supply portion and the second supply portion include an integral flow control device for regulating a fluid flow rate to the dispensing head, and a thermometer for sensing the temperature of the first fluid and the second fluid respectively.

Abstract: A paint feeding device is equipped with a paint feeding passage, which has a discharge port at one end, to which a rinsing liquid feeding device for feeding a rinsing liquid to the inside, and an air feeding device for feeding air to the inside, are connected to the end portion on the opposite side of the discharge port. A plurality of paint feeding devices for feeding the paint to the inside are connected between the discharge port and the opposite side end portion. The rinsing liquid feeding device and the air feeding device are connected to the paint feeding passage through a rinsing liquid feeding passage disposed separately of the paint feeding passage. The rinsing liquid feeding passage has a passage content volume set according to the feeding capacity of the rinsing liquid per a unit time by the rinsing liquid feeding device.

Abstract: A dispensing system for a plural component mixture including a first operator held container and separate flexible containers placed within the first container. Conduits coupled between the second containers and a dispensing device. The dispensing device includes a passageway and a valve for each respective component. An actuator controls the valves. A second valve is coupled in the conduits between the components' sources and the dispensing device. The second valve includes an inlet port for each component, an equal number of outlet ports, and an inlet port for flushing the plural components from at least portions of their respective conduits. The second valve has a first state where each inlet port is coupled to an outlet port and a second state where the inlet port for flushing material from the conduits and the mixed plural components is coupled to the outlet ports.

Abstract: A device to prevent the exsiccation of fluid products in a delivery head of a dispensing machine for said fluid products. The device comprises a first element able to generate a flow of air mixed with steam or with at least a solvent, and a second element able to convey the flow towards a zone underneath the delivery nozzles of the delivery head and to create in said zone a determinate atmosphere, different from the atmosphere in the environment where the dispensing machine is to be found during use. The device also comprises detection elements arranged in proximity with the delivery head and able to detect one or more significant parameters of said determinate atmosphere, and a regulation circuit able to regulate one or more characteristics of said flow according to the values detected by the detection elements in order to maintain the significant parameters of the determinate atmosphere within a set of pre-determined values.

Abstract: Purge arrangement for powder coating system includes a gun manifold (40) that is selectively assembled for fluid communication with either a purge manifold (36) or a hopper manifold (34). This allows purging of multiple hoses and guns at the same time and simplified color change operations.

Abstract: An internal combustion engine system has an internal combustion engine with an intake for air and an exhaust for products of combustion. The engine has a turbocharger for pressurizing intake air in response to passage of the products of combustion. An exhaust aftertreatment device receives the exhaust from the engine to filter diesel particulates. A device for regenerating the exhaust aftertreatment device has a feed line and nozzle for injecting duel upstream of the exhaust aftertreatment device on a periodic basis. A system and method for purging the fuel line and the nozzle utilizes pressurized air from the engine turbocharger via an air tank when the regenerating device is not injecting fuel.

Abstract: A first wash fluid discharging passage having an outlet end thereof opened to an outer peripheral surface is provided on a rotary atomizing head and positioned behind a paint reservoir. A second wash fluid discharging passage having an outlet end thereof opened to the paint reservoir is also provided on the rotary atomizing head positioned around a fore end of a paint tube. Also, a nozzle is provided at a fore outlet end of a wash fluid tube. The nozzle internally defines an annular chamber for pooling a wash fluid. The nozzle includes first and second outlet openings to spurt a wash fluid toward the first and second wash fluid discharging passages. Further, a check valve in the annular chamber of the nozzle prevents a reverse flow of a wash fluid.

Abstract: A paint delivery and application apparatus, wherein the apparatus includes a source of paint, a paint applicator, a supply line interconnecting the source of paint and the applicator and at least one pig in the supply line, wherein the paint pushes the pig from adjacent the source of paint to the paint applicator and a source of purging solvent delivering a small volume of purging solvent to the supply line when the pig is adjacent the source of paint adjacent to and upstream of the pig acting as a lubricant, reducing chattering and skipping of the pig and extending the life of the pig. Where the apparatus includes two pigs, purging solvent is delivered between the pigs adjacent the applicator, the pigs are delivered to adjacent the source of paint and a small volume of solvent is then delivered from between the pigs upstream of the pigs.

Abstract: One embodiment of the present subject matter includes a system which includes a tank, a conduit is adapted to carry a recirculating supply of fluid from the tank and into the tank, and at least one injector adapted to dispense fluid from the recirculating supply of fluid into a chamber.

Abstract: A substrate-processing apparatus includes a sample table which mounts thereon a to-be-processed substrate, a first line which supplies a chemical solution, a second line which supplies a cleaning liquid, a three-way valve connected to the first and second lines and configured to select one of the first and second lines, a filter provided across the first line upstream of the three-way valve, and configured to eliminate a foreign material from the chemical solution, and a nozzle provided downstream of the three-way valve and configured to discharge the chemical solution or the cleaning liquid when the first or second line is selected via the three-way valve. The three-way valve selects the first line when the substrate is coated with the chemical solution, and selects the second line in other cases.

Abstract: This spraying member (10) comprises at least one outer bowl (100) and one inner bowl (200), each bowl defining a spraying edge (101, 201), one inner spreading surface (102, 202) and one outer surface (103, 203). The inner bowl (200) is positioned radially on the inside of the outer bowl (100), whereas a volume (V1) defined between the inner surface (102) of the outer bowl (100) and the outer surface (203) of the inner bowl (200) has a thickness (e), corresponding to the distance between this inner surface (102) and this outer surface (203), decreasing between a first value (e1), taken at the zone for inlet of cleaning product into the volume (V1), and a second value (e2), taken at the spraying edge (101) of the outer bowl (100). The spraying member (10) comprises means (68) for the central supply of the inner spreading surfaces (102, 202).

Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.

Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.

Abstract: A method and apparatus to disintegrate a liquid having a tendency to solidify and improving the operational safety of processes involving dispensing or spraying of small liquids amounts. The method of the present invention comprises the prevention of the formation of nozzle built-up of formerly suspended particles or formerly dissolved solute by means of closing the nozzle aperture when the spraying process is stopped using a sealing liquid.

Abstract: A method and device for hygienically delivering a liquid food to or from a food or beverage dispenser by delivering a flow of liquid food through an outlet positioned at a distance of all surfaces of the dispenser and by frequently cleaning the outlet with a flow of cleaning liquid directed onto the external surfaces demarcating the outlet to eliminate the liquid and solid food residue. The device may include a connection fitment with an elongated food delivery member which is configured to connect to a cleaning chamber of the dispenser. The device can be easier and more conveniently cleaned and/or sanitized enabling the dispensing of microbial sensitive food products such as milk concentrate and the like.

Abstract: An irrigation sprinkler is provided having a turret for the distribution of irrigation water that includes a self-flushing mechanism to prevent accumulation of debris in a sprinkler control member and/or the interior of the turret. The sprinkler includes a main flow path that delivers water to a nozzle for irrigation and a secondary flow path that delivers water to flush part of the member and/or interior of the turret. The secondary flow path delivers water when the sprinkler cycles on and when the sprinkler cycles off. For example, with a pop-up sprinkler, the secondary flow path would deliver fluid sometime during its movement to the elevated position and movement to the retracted position.

Abstract: A jetting apparatus (15) for jetting droplets of viscous medium onto a substrate and a method of improving the performance of the jetting apparatus. The jetting apparatus (15) includes a jetting outlet (27) through which the droplets are jetted, a flow generator for producing a flow of air past the jetting outlet for removing viscous medium residue at the jetting outlet (27), a receptacle (55) for receiving viscous medium residue transported by the air flow away from the jetting outlet (27), and a flow path (58) for the air flow between the jetting outlet (27) and the flow generator, via the receptacle. A flow sensor (70) is arranged in the flow path (58) for measuring the air flow. An air flow signal representative of the air flow is obtained, the air flow signal is evaluated for determining at least one status of the jetting apparatus (15), and an indication of the status is provided.

Abstract: A painting machine having a spray head for painting an object, a pump for conveying paint from a paint container via a feed line to the spray head and back via a return line to the paint container, the feed and return lines connected to a solvent container with a solvent for flush cleaning the painting machine. The feed and return lines are connected to a disposal container for disposing of paint and solvent residues, and at their respective container-side end to a first and second controllable multiway valve for switching the feed and return lines to the paint container, solvent container or disposal container. The painting machine has a control device for controlling the multiway valve such that execution of the consecutive operations of disposal of the paint, filling with solvent, flushing out the painting machine, disposing of the solvent, refilling with paint and also further conveyance of the paint are automated.

Abstract: The apparatus for airbrush waste removal has an airtight canister with an inlet port having a tip suction nozzle into which the airbrush nozzle is inserted. The canister has a discharge port connected to a source of suction, which may be a vacuum pump, a venturi, or the like. A discharge conduit leads from the suction source to outside air, and may include a charcoal filter, catalytic converter, burn chamber, or other device for reducing volatile organic compounds from the air discharged from the canister. A vapor permeable filter is disposed in the discharge conduit to prevent solid and/or liquid particles from entering the suction source.

Abstract: A first wash fluid discharging passage (15) having an outlet end thereof opened to an outer peripheral surface (8C) is provided on a rotary atomizing head (7) and positioned behind a paint reservoir (12). On the other hand, a second wash fluid discharging passage (20) having an outlet end thereof opened to the paint reservoir (12) is also provided on the rotary atomizing head (7) positioned around a fore end of a paint tube (18). In addition, a nozzle (22) is provided at a fore outlet end of a wash fluid tube (19). The nozzle (22) internally defines an annular chamber (24) for pooling a wash fluid. The nozzle (22) is provided with first and second outlet openings (25, 26) to spurt a wash fluid toward the first and second wash fluid discharging passages (15, 20). Further, a check valve (27) is provided in the annular chamber (24) of the nozzle (22) to prevent a reverse flow of a wash fluid.

Abstract: An apparatus for providing vapor to at least one liquid dispensing nozzle to prevent liquid at the nozzle tip from drying out between uses. The apparatus comprises a water source, a reservoir, a vapor generating source for generating vapor from water, a chamber for maintaining the vapor, and an opening defined through a chamber wall for exposing the at least one nozzle to the vapor when the at least one nozzle is in a storage position between uses.

Abstract: A speed limiting mechanisms for turbine-driven fluid distribution apparatus usable with compressible fluid such as compressed air and incompressible fluid such as water. In one form, a flow restrictor is located in the turbine discharge flow path, with the turbine discharge port area selected in relation to the turbine inlet port area according to the desired turbine speed with compressed air. In another form, the incoming fluid flows downstream along the surface of the turbine stator, and is then diverted to enter the rotor chamber in the proper direction. A bleed area on the stator which permits a portion of a compressible fluid which has expanded as it flows along the stator surface to flow to bypass the turbine rotor.

Abstract: A jetting device and a method of jetting droplets of viscous medium onto a substrate. The jetting device includes a jetting outlet through which the droplets are jetted. The jetting device further includes a wall located at the jetting outlet, downstream of the jetting outlet seen in the jetting direction. The wall is provided with an orifice through which jetted droplets are permitted to pass through. A gaseous flow is provided within the space past the jetting outlet such that an adverse effect on the performance of the jetting device is prevented, the adverse effect resulting from the accumulation of viscous medium residue at the jetting outlet.

Abstract: In a method for cleaning a liquid delivery device such as a dispensing or pipetting device, the liquid chamber can be flushed in a cleaning step. To remove gas bubbles which might exist in the liquid chamber, for example, the liquid in the liquid chamber is vibrated during the cleaning step.

Abstract: Apparatus and method for cleaning a paint cup, spray tip, and wetted parts from a hand held paint spray gun wherein the gun is disassembled after use and internal wetted parts needing cleaning are inserted into the paint cup, a cleaning cap is attached to the paint cup, and a garden hose is used to flush paint from the interior of the paint cup and the parts contained therein. In another aspect, the cleaning cap is attached to and used to flush an extended suction set having an elongated double lumen hose and adapter. The cleaning cap has a fitting adapted to receive a conventional garden hose and further has a passageway to allow water to exit from the cap after flushing the interior of the paint cup.

Abstract: A jet dispersing device includes a high pressure region having a flow inlet and a low pressure region having a flow outlet. A partition wall is positioned within the high pressure region such that the high pressure region is partitioned from the low pressure region. Additionally, the partition wall may be provided with at least one nozzle hole configured to jet a liquid from the high pressure region to the low pressure region such that the liquid is dispersed as fine particles. The partitioning wall may also have a cleaning fluid communication port having an opening area which is larger than an opening area of the at least one nozzle. Additionally, a valve mechanism configured to open and close the cleaning fluid communication port may also be provided.

Abstract: Method intended to unblock enriched air blow or reaction gases nozzles in reactors or fusion converters for mining industry pyrometallurgy CHARACTERIZED by the injection of discrete air impacts with time intervals regulated to high pressure and rate through the enriched air blow or reaction gases nozzles; thus, the air impacts penetrate into the melting bath of such reactors or converters, producing the breaking of blocking accretions that dug the flow of such a enriched air or gas through the nozzle and forming, because the cooling provoked by the penetration of them, a directed accretion with material of the melting bath which is solidified by the cooling effect, allowing that the production of directed accretion be a natural lengthening of the tube of nozzle from the inner wall of these reactors or converters, and by this way to allow that the O2-enriched air blowing through the nozzle enters deeper in the melting bath, to a distance where breaking waves of this flow are generated far of the wall that has

Abstract: A method and device for hygienically delivering a liquid food to or from a food or beverage dispenser by delivering a flow of liquid food through an outlet positioned at a distance of all surfaces of the dispenser and by frequently cleaning the outlet with a flow of cleaning liquid directed onto the external surfaces demarcating the outlet to eliminate the liquid and solid food residue. The device may include a connection fitment with an elongated food delivery member which is configured to connect to a cleaning chamber of the dispenser. The device can be easier and more conveniently cleaned and/or sanitized enabling the dispensing of microbial sensitive food products such as milk concentrate and the like.

Abstract: An irrigation sprinkler is provided having a turret for the distribution of irrigation water that includes a self-flushing mechanism to prevent accumulation of debris in a sprinkler control member and/or the interior of the turret. The sprinkler includes a main flow path that delivers water to a nozzle for irrigation and a secondary flow path that delivers water to flush part of the member and/or interior of the turret. The secondary flow path delivers water when the sprinkler cycles on and when the sprinkler cycles off. For example, with a pop-up sprinkler, the secondary flow path would deliver fluid sometime during its movement to the elevated position and movement to the retracted position.

Abstract: An air flush system for a spraying system includes an air compressor unit and an inverter. The air compressor unit integrally comprises a compressor including an electric motor configured to operate upon receipt of alternating current voltage, a tank provided in fluid communication with the compressor and configured to store air compressed by the compressor; and an outlet provided in fluid communication with the tank and configured to selectively dispense compressed air from the tank to a portion of a spraying system to facilitate purging of material from the spraying system. The inverter is configured to selectively convert direct current voltage from a vehicular electrical system into alternating current voltage suitable to operate the compressor. A method for cleaning a spraying apparatus is also provided.

Abstract: A voltage block comprises first and second reservoirs and a switching device including an inlet port, an outlet port, a first reservoir port and a second reservoir port. The switching device is mounted in a third reservoir for movement between a first position and a second position. The third reservoir includes an electrically non-conductive fluid medium in which at least a portion of the switching device is immersed.

Abstract: A nozzle (100) for air-assisted atomizing of a liquid fuel comprises a fuel feed passage (110) and an air feed passage (114) and a swirling chamber (118) from which fuel and air may be passed to an exit orifice (126) for emerging a cone shaped spray. An air bypass passage (122) is provided for leading a fraction of the air flow in the air feed passage (114) past the swirling chamber (118) and to an air exit (124) arranged such with respect to the exit orifice (126) that, during operation of the nozzle, air emerging through the air exit (124) reduces depositing of residues of fuel on a downstream surface (130, 132, 136) of the nozzle element (108). Grooves or other flow-guiding elements may confer swirling or rotation of air in or downstream of the air feed passage (114) and/or the air bypass passage (122).