Dynamically adjustable impulse driving fluid jetting device

Abstract

A device includes a fluid jetting tube, a cylinder and a disk valve. The cylinder is formed on an exterior of the fluid jetting tube and includes a port to receive a fluid supply line and an internal movable piston configured to control an internal volume of the cylinder. The disk valve rotates within the cylinder and extends from the internal volume of the cylinder through a slot in the fluid jetting tube into an interior of the fluid jetting tube.

What is claimed is: 
     
         1 . A device, comprising:
 a fluid jetting tube;   a cylinder formed on an exterior of the fluid jetting tube, the cylinder including a port to receive a fluid supply line and a piston configured to control an internal volume of the cylinder; and   a disk valve configured to rotate within at least a portion of the cylinder, wherein the disk valve extends from within the internal volume of the cylinder through a slot in the fluid jetting tube into an interior of the fluid jetting tube.   
     
     
         2 . The device of  claim 1 , further comprising:
 a control device configured to control a rotation speed of the valve and movement of the piston within the cylinder.   
     
     
         3 . The device of  claim 1 , wherein the fluid supply line supplies fluid to the internal volume of the cylinder and wherein the piston moves within the cylinder to adjust the internal volume of the cylinder. 
     
     
         4 . The device of  claim 1 , further comprising:
 a pressure sensor located on the cylinder to sense a pressure within the internal volume of the cylinder.   
     
     
         5 . The device of  claim 1 , wherein the disk valve comprises a disk having a straight cylindrical hole that extends internally through the disk valve such that each end of the hole opens upon a perimeter of the disk valve. 
     
     
         6 . The device of  claim 5 , wherein the disk valve rotates about a shaft within the cylinder at a rotation speed. 
     
     
         7 . The device of  claim 6 , wherein the disk valve rotates about the shaft such that the cylindrical hole connects the internal volume of the cylinder to an interior of the fluid jetting tube. 
     
     
         8 . The device of  claim 7 , wherein the fluid supply line supplies fluid to the internal volume of the cylinder and wherein, when the cylindrical hole of the disk valve connects the internal volume of the cylinder to the interior of the fluid jetting tube, the fluid flows from the internal volume of the cylinder into the fluid jetting tube to be expelled out a nozzle of the fluid jetting tube. 
     
     
         9 . A method, comprising:
 adjusting a fluid supply rate and fluid pressure to a cylinder of a device, wherein a nozzle of a jetting tube of the device is connected to a duct having a cable inserted within;   adjusting a position of a piston within the cylinder of the device to adjust a volume of the cylinder;   adjusting a spinning rate of a disk valve contained within the device to set a fluid jetting impulse frequency;   monitoring movement of the cable within the duct; and   determining, based on the monitored movement of the cable, whether the fluid pressure, cylinder fluid volume and fluid jetting impulse frequency achieves a vibratory resonance condition within the duct.   
     
     
         10 . The method of  claim 9 , wherein adjusting the position of the piston within the cylinder adjusts a pressure of fluid within the volume of the cylinder. 
     
     
         11 . The method of  claim 9 , wherein achieving the vibratory resonance condition within the duct causes maximum length-wise movement of the cable within the duct. 
     
     
         12 . The method of  claim 11 , wherein the maximum length-wise movement of the cable causes the cable to move substantially into, or out of, the duct. 
     
     
         13 . The method of  claim 9 , wherein the cable includes one or more optical fibers. 
     
     
         14 . A fluid jetting device, comprising:
 a tube;   a cylinder formed on an exterior of the tube and having an internal volume; and   a valve shaped as a disk and configured to rotate within the cylinder, wherein the disk extends from the internal volume of the cylinder through a slot in the tube into an interior of the tube.   
     
     
         15 . The fluid jetting device of  claim 14 , wherein the cylinder includes an internal piston whose movement controls a size of the internal volume of the cylinder 
     
     
         16 . The fluid jetting device of  claim 14 , further comprising:
 a control device configured to control the movement of the piston within the cylinder.   
     
     
         17 . The fluid jetting device of  claim 14 , wherein the cylinder has a port that connects to a fluid supply line that supplies fluid to the internal volume of the cylinder. 
     
     
         18 . The fluid jetting device of  claim 14 , wherein a straight cylindrical hole extends through the disk of the valve such that both ends of the hole open onto a perimeter of the disk and wherein, when the cylindrical hole of the disk valve connects the internal volume of the cylinder to the interior of the fluid jetting tube, the fluid flows from the internal volume of the cylinder into the tube to be expelled out a nozzle of the tube. 
     
     
         19 . The fluid jetting device of  claim 14 , wherein a straight cylindrical hole extends through the disk of the valve such that both ends of the hole open onto a perimeter of the disk. 
     
     
         20 . The fluid jetting device of  claim 19 , wherein the disk valve rotates about a shaft such that the cylindrical hole connects the internal volume of the cylinder to an interior of the tube. 
     
     
         21 . The fluid jetting device of  claim 14 , further comprising:
 a pressure sensor located on the cylinder to sense a pressure within the internal volume of the cylinder.   
     
     
         22 . The fluid jetting device of  claim 14 , further comprising:
 a control device configured to control the rotation speed of the valve about the shaft.