公开(公告)号：US09770724B2

公开(公告)日：2017-09-26

申请号：US15153336

申请日：2016-05-12

Applicant: VLN Advanced Technologies Inc.

Inventor： Mohan Vijay

IPC: B05B5/025 ,  B05B5/16 ,  B05B5/08 ,  B05B1/08 ,  B05B12/06 ,  B08B3/12 ,  B05B17/06 ,  B08B3/10 ,  B08B9/08 ,  E21C45/00

CPC classification number: B05B1/08 ,  B05B5/025 ,  B05B5/087 ,  B05B5/1616 ,  B05B12/06 ,  B05B17/0676 ,  B08B3/02 ,  B08B3/10 ,  B08B3/12 ,  B08B9/00 ,  B08B9/0813 ,  B08B2203/0288 ,  E21C45/00

Abstract: An electrodischarge apparatus has a nozzle that includes a discharge chamber that has an inlet for receiving a liquid and an outlet. The apparatus has a first electrode extending into the discharge chamber that is electrically connected to one or more high-voltage capacitors. A second electrode is proximate to the first electrode to define a gap between the first and second electrodes. A switch causes 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 from the nozzle ahead of the plasma bubble.

公开(公告)号：US09757756B2

公开(公告)日：2017-09-12

申请号：US14019160

申请日：2013-09-05

Applicant: VLN Advanced Technologies Inc.

Inventor： Mohan M. Vijay ,  Andrew Hung Tieu ,  Wenzhuo Yan ,  Bruce R. Daniels

IPC: B24C3/32 ,  B24C5/04 ,  B08B9/049 ,  B05B1/14 ,  B05B17/06 ,  B05B17/00 ,  B05B1/08 ,  B05B3/06 ,  B05B13/06 ,  B05B3/02

CPC classification number: B05B17/0653 ,  B05B1/08 ,  B05B1/083 ,  B05B1/14 ,  B05B3/02 ,  B05B3/06 ,  B05B13/0636 ,  B05B17/0607 ,  B05B17/0623 ,  B05B17/063 ,  B05B17/0638 ,  B08B9/0495 ,  B24C3/32 ,  B24C3/325 ,  B24C5/04

Abstract: 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.

公开(公告)号：US09718091B2

公开(公告)日：2017-08-01

申请号：US15192226

申请日：2016-06-24

Applicant: VLN Advanced Technologies Inc.

Inventor： Mohan M. Vijay ,  Meisheng M. Xu ,  Emilio Panarella ,  Wenzhuo Yan ,  Andrew Hung Tieu ,  Bruce R. Daniels

IPC: B05B5/08 ,  B05B5/10 ,  B05B5/03 ,  B05B5/053 ,  B08B3/02 ,  B24C5/00 ,  B24C7/00 ,  B05D1/12 ,  C25D5/00 ,  C25D21/12 ,  C25D5/34 ,  C25D5/50 ,  C25D15/00 ,  C25D5/08 ,  B05C15/00 ,  B05C19/00 ,  B05B15/12 ,  B05B5/00 ,  B24C3/12 ,  B05B1/08 ,  B05B5/035 ,  B05B13/04 ,  B05B17/06 ,  B25J11/00 ,  B25J21/00 ,  C23C24/04 ,  B05B5/16 ,  B05B12/08 ,  B05D3/12 ,  C23C18/18

CPC classification number: B05D1/12 ,  B05B1/08 ,  B05B1/083 ,  B05B5/001 ,  B05B5/006 ,  B05B5/032 ,  B05B5/035 ,  B05B5/08 ,  B05B5/082 ,  B05B5/10 ,  B05B5/16 ,  B05B12/08 ,  B05B13/0431 ,  B05B14/40 ,  B05B16/00 ,  B05B16/20 ,  B05B16/40 ,  B05B17/06 ,  B05B17/0607 ,  B05B17/0653 ,  B05C15/00 ,  B05C19/00 ,  B05D3/12 ,  B08B3/024 ,  B08B2203/0288 ,  B24C3/12 ,  B24C5/005 ,  B24C7/00 ,  B25J11/0075 ,  B25J21/00 ,  C23C18/1806 ,  C23C24/04 ,  C25D5/006 ,  C25D5/08 ,  C25D5/34 ,  C25D5/50 ,  C25D15/00 ,  C25D21/12

Abstract: 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.

公开(公告)号：US20140008453A1

公开(公告)日：2014-01-09

申请号：US14019160

申请日：2013-09-05

Applicant: VLN Advanced Technologies Inc.

Inventor： Mohan M. Vijay ,  Andrew Hung Tieu ,  Wenzhuo Yan ,  Bruce R. Daniels

IPC: B05B17/06 ,  B05B1/08

CPC classification number: B05B17/0653 ,  B05B1/08 ,  B05B1/083 ,  B05B1/14 ,  B05B3/02 ,  B05B3/06 ,  B05B13/0636 ,  B05B17/0607 ,  B05B17/0623 ,  B05B17/063 ,  B05B17/0638 ,  B08B9/0495 ,  B24C3/32 ,  B24C3/325 ,  B24C5/04

Abstract: 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.

公开(公告)号：US08550873B2

公开(公告)日：2013-10-08

申请号：US12504188

申请日：2009-07-16

Applicant: Mohan M. Vijay ,  Andrew Hung Tieu ,  Wenzhuo Yan ,  Bruce R. Daniels

Inventor： Mohan M. Vijay ,  Andrew Hung Tieu ,  Wenzhuo Yan ,  Bruce R. Daniels

IPC: B24C3/00

CPC classification number: B05B17/0653 ,  B05B1/08 ,  B05B1/083 ,  B05B1/14 ,  B05B3/02 ,  B05B3/06 ,  B05B13/0636 ,  B05B17/0607 ,  B05B17/0623 ,  B05B17/063 ,  B05B17/0638 ,  B08B9/0495 ,  B24C3/32 ,  B24C3/325 ,  B24C5/04

Abstract: 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 VTR 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.

Abstract translation: 使用高频强制脉冲水射流制备表面的方法需要使用高频信号发生器产生具有频率f的高频信号，将高频信号施加到具有微尖端的换能器以使微尖端 换能器振动，从而通过具有出口孔直径d和长度L的喷嘴的出口孔产生强制脉冲水射流。强制脉冲水射流将表面准备在预定的表面粗糙度范围内。 表面粗糙度通过选择包括间隔距离（SD），喷嘴的横动速度VTR，水压P，水流量Q，长径比（L / d）比， 微孔到孔的距离（a），频率f和高频信号的振幅A.