Integrated fluidjet system for stripping, prepping and coating a part

An integrated liquidjet system capable of stripping, prepping and coating a part includes a cell defining an enclosure, a jig for holding the part inside the cell, an ultrasonic nozzle having an ultrasonic transducer for generating a pulsed liquidjet, a coating particle source for supplying coating particles to the nozzle, a pressurized liquid source for supplying the nozzle with a pressurized liquid to enable the nozzle to generate the pulsed liquidjet to sequentially strip, prep and coat the part, a high-voltage electrode and a ground electrode inside the nozzle for charging the coating particles, and a human-machine interface external to the cell for receiving user commands and for controlling the pulsed liquidjet exiting from the nozzle in response to the user commands.

Method and apparatus for prepping bores and curved inner surfaces with a rotating high-frequencey forced pulsed waterjet

A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet apparatus entails generating a pressurized waterjet using a high-pressure water pump, generating a high-frequency signal using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip to vibrate to thereby generate the high-frequency forced pulsed waterjet, and rotating the rotatable ultrasonic nozzle inside the bore to prep the inner cylindrical surface of the bore using the high-frequency forced pulsed waterjets exiting from the angled exit orifices of the rotatable ultrasonic nozzle.

INTEGRATED FLUIDJET SYSTEM FOR STRIPPING, PREPPING AND COATING A PART

A method of stripping, prepping and coating a surface comprises first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged-particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface. 1. An integrated fluidjet system capable of prepping and coating a new part , the integrated system comprising:a cell defining an enclosure and having a door;a jig for holding the part inside the cell;a robotic arm movable within the cell;a nozzle mounted on the robotic arm;a coating particle source for supplying coating particles to the nozzle;a pressurized fluid source for supplying the nozzle with a pressurized fluid to enable the nozzle to generate a fluidjet with the coating particles particles and the pressurized fluid capable of sequentially prepping and coating the part;an electric field generator for generating an electric field for charging the coating particles; anda human-machine interface external to the cell for receiving user commands and for controlling the robotic arm and fluidjet exiting from the nozzle in response to the user commands.2. The system as claimed in further comprising a magnetic field generator for generating a magnetic field for keeping the particles cohesive and focused to enhance impact of the coating particles on the surface.3. The ...

INTEGRATED FLUIDJET SYSTEM FOR STRIPPING, PREPPING AND COATING A PART

An integrated liquidjet system capable of stripping, prepping and coating a part includes a cell defining an enclosure, a jig for holding the part inside the cell, an ultrasonic nozzle having an ultrasonic transducer for generating a pulsed liquidjet, a coating particle source for supplying coating particles to the nozzle, a pressurized liquid source for supplying the nozzle with a pressurized liquid to enable the nozzle to generate the pulsed liquidjet to sequentially strip, prep and coat the part, a high-voltage electrode and a ground electrode inside the nozzle for charging the coating particles, and a human-machine interface external to the cell for receiving user commands and for controlling the pulsed liquidjet exiting from the nozzle in response to the user commands. 1. An integrated liquidjet system capable of stripping , prepping and coating a part , the integrated liquidjet system comprising:a cell defining an enclosure;a jig for holding the part inside the cell;an ultrasonic nozzle having an ultrasonic transducer for generating a pulsed liquidjet;a coating particle source for supplying coating particles to the nozzle;a pressurized liquid source for supplying the nozzle with a pressurized liquid to enable the nozzle to generate the pulsed liquidjet to sequentially strip, prep and coat the part;a high-voltage electrode and a ground electrode inside the nozzle for charging the coating particles; anda human-machine interface external to the cell for receiving user commands and for controlling the pulsed liquidjet exiting from the nozzle in response to the user commands.2. The system as claimed in wherein the cell defines an electrically shielded enclosure.3. The system as claimed in wherein the cell includes a Faraday cage.4. The system as claimed in wherein the pulsed liquidjet is a forced pulsed waterjet5. The system as claimed in wherein the jig comprises a turntable for rotating the part at an angular velocity controlled by the human-machine interface.6. ...

Integrated fluidjet system for stripping, prepping and coating a part

A method of stripping, prepping and coating a surface includes first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged-particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface.

METHOD AND APPARATUS FOR PREPPING BORES AND CURVED INNER SURFACES WITH A ROTATING HIGH-FREQUENCEY FORCED PULSED WATERJET

A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet apparatus entails generating a pressurized waterjet using a high-pressure water pump, generating a high-frequency signal using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip to vibrate to thereby generate the high-frequency forced pulsed waterjet, and rotating the rotatable ultrasonic nozzle inside the bore to prep the inner cylindrical surface of the bore using the high-frequency forced pulsed waterjets exiting from the angled exit orifices of the rotatable ultrasonic nozzle. 1. A high-frequency forced pulsed waterjet apparatus comprising:a high-pressure water pump for generating a pressurized waterjet;a high-frequency signal generator for generating a high-frequency signal; anda rotatable ultrasonic nozzle comprising a transducer having a microtip for converting the high-frequency signal into vibrations that pulse the pressurized waterjet and two angled exit orifices for prepping an inner cylindrical surface of a bore into which the nozzle is inserted.2. The high-frequency forced pulsed waterjet apparatus as claimed in wherein the rotatable ultrasonic nozzle comprises two forwardly angled exit orifices and two rearwardly angled exit orifices.3. The high-frequency forced pulsed waterjet apparatus as claimed in wherein the rotatable ultrasonic nozzle comprises an inside forward end that is rounded or bell-mouthed.4. The high-frequency forced pulsed waterjet apparatus as claimed in wherein the rotatable ultrasonic nozzle comprises an inside forward end that is rounded or bell-mouthed.5. The high-frequency forced pulsed waterjet apparatus as claimed in wherein the rotatable ultrasonic nozzle comprises an entry zone proximal to each angled exit orifice that is rounded or bell-mouthed.6. The high-frequency forced pulsed waterjet apparatus as claimed in wherein the rotatable ultrasonic ...

INTEGRATED FLUIDJET SYSTEM FOR STRIPPING, PREPPING AND COATING A PART

An integrated liquidjet system capable of stripping, prepping and coating a part includes a cell defining an enclosure, a jig for holding the part inside the cell, an ultrasonic nozzle having an ultrasonic transducer for generating a pulsed liquidjet, a coating particle source for supplying coating particles to the nozzle, a pressurized liquid source for supplying the nozzle with a pressurized liquid to enable the nozzle to generate the pulsed liquidjet to sequentially strip, prep and coat the part, a high-voltage electrode and a ground electrode inside the nozzle for charging the coating particles, and a human-machine interface external to the cell for receiving user commands and for controlling the pulsed liquidjet exiting from the nozzle in response to the user commands. 1. A method of stripping , prepping and coating a part , the method comprising:holding the part inside a cell that defines an electrically shielded enclosure;generating a pulsed liquidjet using an ultrasonic nozzle;supplying coating particles to the nozzle;supplying the nozzle with a pressurized liquid to enable the nozzle to generate the pulsed liquidjet to sequentially strip, prep and coat the part;charging the coating particles using a high-voltage electrode and a ground electrode inside the nozzle;stripping the part by controlling the pulsed liquidjet;prepping the part by controlling the pulsed liquidjet; andcoating the part by controlling the pulsed liquidjet.2. The method as claimed in further comprising optically inspecting the part to determine when stripping is complete and then automatically switching to prepping.3. The method as claimed in further comprising detecting when prepping is complete and then automatically switching to coating.4. The method as claimed in further comprising detecting when coating is complete.5. A method of stripping claim 3 , prepping and coating a part claim 3 , the method comprising:generating a pulsed liquidjet using an ultrasonic nozzle that ultrasonically ...

METHOD AND APPARATUS FOR PREPPING BORES AND CURVED INNER SURFACES WITH A ROTATING HIGH-FREQUENCY FORCED PULSED WATERJET

A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet apparatus entails generating a pressurized waterjet using a high-pressure water pump, generating a high-frequency signal using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip to vibrate to thereby generate the high-frequency forced pulsed waterjet, and rotating the rotatable ultrasonic nozzle inside the bore to prep the inner cylindrical surface of the bore using the high-frequency forced pulsed waterjets exiting from the angled exit orifices of the rotatable ultrasonic nozzle. 1. A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet , the method comprising:inserting the nozzle inside the bore;generating a pressurized waterjet using a high-pressure water pump;generating a high-frequency signal using a high-frequency signal generator;applying the high-frequency signal to a transducer to generate the high-frequency forced pulsed waterjet; androtating a rotatable nozzle head inside the bore to prep the inner cylindrical surface of a substrate material of the bore to a predetermined uniform surface finish characterized by an average surface roughness Ra that is within a predetermined range of surface roughness using the high-frequency forced pulsed waterjet exiting from at least one angled exit orifice of the rotatable nozzle head, wherein the waterjet flows through a curved conduit in the nozzle head to the at least one angled exit orifice that is substantially perpendicular to an axis of rotation of the rotatable nozzle head to direct the waterjet radially outwardly against the surface of the bore.2. The method as claimed in further comprising translating the rotatable nozzle head forwardly and rearwardly inside the bore such that an erosive capacity in a forward pass is greater than an erosive capacity in a rearward pass.3. The method as ...

Method and apparatus for prepping bores and curved inner surfaces with a rotating high-frequencey forced pulsed waterjet

A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet apparatus entails generating a pressurized waterjet using a high-pressure water pump, generating a high-frequency signal using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip to vibrate to thereby generate the high-frequency forced pulsed waterjet, and rotating the rotatable ultrasonic nozzle inside the bore to prep the inner cylindrical surface of the bore using the high-frequency forced pulsed waterjets exiting from the angled exit orifices of the rotatable ultrasonic nozzle.

Compact ultrasonically pulsed waterjet nozzle

A pulsed waterjet apparatus comprising a water pump for generating a pressurized waterjet, an ultrasonic signal generator for generating an ultrasonic signal and an ultrasonic nozzle comprising an ultrasonic transducer for converting the ultrasonic signal into vibrations that pulse the pressurized waterjet to generate a pulsed waterjet, an exit orifice through which the pulsed waterjet exits and an inflow inlet axially aligned with the exit orifice.

INTEGRATED FLUIDJET SYSTEM FOR STRIPPING, PREPPING AND COATING A PART

A method of stripping, prepping and coating a surface includes first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged-particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface. 1. An integrated fluidjet system for sequentially stripping , prepping and coating a part to be refurbished , the integrated system comprising:a cell defining an electrically shielded enclosure and having a door;a jig for holding the part inside the cell;a robotic arm movable within the cell;a nozzle mounted on the robotic arm;a pressurized fluid source for supplying a pressurized fluid to the nozzle to enable the nozzle to generate a fluidjet capable of sequentially stripping, prepping and coating the part;an electric field generator for generating an electric field for charging the coating particles; anda human-machine interface external to the cell for receiving user commands and for controlling the robotic arm and fluidjet exiting from the nozzle in response to the user commands.2. The system as claimed in further comprising a magnetic field generator for generating a magnetic field for keeping the particles cohesive and focused to enhance impact of the coating particles on the surface.3. The system as claimed in further comprising an induction heater for heating the ...

Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet using a rotatable nozzle

A method of prepping a surface using a high-frequency forced pulsed waterjet entails generating a high-frequency signal having a frequency f using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip of the transducer to vibrate to thereby generate a forced pulsed waterjet through an exit orifice of a nozzle having an exit orifice diameter d and a length L. The forced pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity V TR of the nozzle, a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, a microtip-to-orifice distance (a), the frequency f, and an amplitude A of the high-frequency signal.

Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet

A method of prepping a surface using a high-frequency forced pulsed waterjet entails generating a high-frequency signal having a frequency f using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip of the transducer to vibrate to thereby generate a forced pulsed waterjet through an exit orifice of a nozzle having an exit orifice diameter d and a length L. The forced pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity V TR of the nozzle, a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, a microtip-to--orifice distance (a), the frequency f, and an amplitude A of the high-frequency signal.

Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet

A method of prepping a surface using a high-frequency forced pulsed waterjet apparatus (10) comprises the steps of: generating a high-frequency signal having a frequency f using a high-frequency signal generator (20), applying the high-frequency signal to a transducer (60) having a microtip (70) to cause the microtip (70) of the transducer (60) to vibrate to thereby generate a forced pulsed waterjet through an exit orifice (80) of a nozzle (40) having an exit orifice (80) diameter d and a length L. The forced pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity V TR of the nozzle (40), a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, a microtip-to-orifice distance (a), the frequency f, and an amplitude A of the high-frequency signal.

Integrated fluidjet system for stripping, prepping and coating a part

A method of stripping, prepping and coating a surface comprises first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged- particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface.

Integrated fluidjet system for coating a part

A fluidjet system for electro-coating a surface of a part includes a jig for holding the part and a nozzle having a water inlet for receiving pressurized water and a particle inlet for receiving coating particles, the nozzle entraining the coating particles into a mixing chamber to generate a particle-entrained fluidjet capable of coating the surface of the part. The system includes an electric field generator for generating an electric field downstream of the nozzle to thereby charge the coating particles passing through the electric field, wherein the electric field generator comprises a switch for activating and deactivating the electric field.

Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet using a rotatable nozzle

A method of prepping a surface using a high-frequency forced pulsed waterjet entails generating a high-frequency signal having a frequency f using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip of the transducer to vibrate to thereby generate a forced pulsed waterjet through an exit orifice of a nozzle having an exit orifice diameter d and a length L. The forced pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity V TR of the nozzle, a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, a microtip-to-orifice distance (a), the frequency f, and an amplitude A of the high-frequency signal.

Electro-discharge system for neutralizing landmines

A landmine-neutralization system has a vehicle including a water supply tank and an electrical power supply and an electro-discharge apparatus. The electro-discharge apparatus includes one or more electro-discharge nozzles each having a discharge chamber that has an inlet for receiving water from the water supply tank and an outlet, a first electrode extending into the discharge chamber and being electrically connected to one or more high-voltage capacitors that are connected to, and chargeable by, the electrical power supply, a second electrode proximate to the first electrode to define a gap between the first and second electrodes and a switch to cause the one or more capacitors to discharge across the gap between the electrodes to create a plasma bubble which expands to form a shockwave that escapes through one or more exit orifices of the one or more nozzles ahead of the plasma bubble to thereby neutralize a landmine.

Elektroerozijski sustav za neutraliziranje nagaznih (protupješačkih) mina

ELECTRIC DISCHARGE SYSTEM FOR NEUTRALIZATION OF LAND MINES

Compact ultrasonically pulsed waterjet nozzle

A pulsed waterjet apparatus includes a water pump for generating a pressurized waterjet, an ultrasonic signal generator for generating an ultrasonic signal and an ultrasonic nozzle that includes an ultrasonic transducer for converting the ultrasonic signal into vibrations that pulse the pressurized waterjet to generate a pulsed waterjet, an exit orifice through which the pulsed waterjet exits, and an inflow inlet axially aligned with the exit orifice.

Compuestos derivados de nicotinamida; composicion farmaceutica; y uso para tratar una enfermedad o afeccion mediada al menos en parte por prostaglandina d2 producida por h-pgds tal como alergia o inflamacion alergica y asma.

Integrated fluidjet system for stripping, prepping and coating a part

A method of stripping, prepping and coating a surface comprises first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged-particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface.