摘要:
A high-frequency forced pulsed waterjet apparatus (10) comprises a high-pressure water pump (30) for generating a pressurized waterjet and a high-frequency signal generator (20) for generating a high-frequency signal. The apparatus is characterized by a rotatable ultrasonic nozzle (100) comprising a transducer (60) having a microtip (70) for converting the high-frequency signal into vibrations that pulse the pressurized waterjet and two angled exit orifices (130, 132, 212, 222) for prepping an inner cylindrical surface of a bore into which the nozzle is inserted.
摘要:
Aerosols can be created by filament stretching and breaking of Newtonian and non-Newtonian fluids by applying a strain to and stretching the fluid. The fluid is stretched along a strain pathway and forms a fluid filament between diverging surfaces. The stretched fluid filament breaks into droplets that can be harvested to form a mist or aerosol. The aerosol creation system includes multiple rollers (2302) that are positioned apart from each other in a circular pattern between two concentric rings (2304, 2306).
摘要:
A particle distributor assembly 10 for distributing the particles of a drill sample is described. The distributor assembly comprises a stationary inlet tube 14 through which particles enter the distributor assembly 10, and a rotatable distributor head 16. The rotatable distributor head 16 has an upwardly directed inlet 18 offset from a central axis of rotation of the distributor head 16 and a transversely directed outlet 22 wherein, in use, when the distributor head 16 is rotated at high speed particles entering the distributor head inlet are accelerated outwardly in a radial direction through the distributor head outlet. The particle distributor assembly 10 also has a distributor nozzle 24 having an inlet 26 and an outlet 28, the nozzle inlet 26 being aligned with the stationary inlet tube and the nozzle outlet 28 being aligned with the distributor head inlet. The distributor nozzle 24 is supported between the inlet tube 14 and the distributor head 16 in such a manner that it is constrained from rotating while the nozzle outlet 28 is able to oscillate in a circular motion with the distributor head inlet 18. In use, the oscillating motion of the nozzle outlet 28 helps to promote particle flow and produce a more representative distribution of particles exiting from the distributor head outlet 22.
摘要:
A controlled droplet application (CDA) nozzle including a cone having plural ridges disposed longitudinally on an interior surface of the cone; and a fin assembly connected to the interior surface, the fin assembly comprising a plurality of fins extending between a central portion of the cone and the interior surface, wherein adjacent pairs of the plurality of fins and the interior surface at least partially define a respective compartment for the collection of a defined volume of fluid.
摘要:
A controlled droplet application (CDA) nozzle including a cone having plural ridges disposed longitudinally on an interior surface of the cone; and a fin assembly connected to the interior surface, the fin assembly comprising a plurality of fins extending between a central portion of the cone and the interior surface, wherein adjacent pairs of the plurality of fins and the interior surface at least partially define a respective compartment for the collection of a defined volume of fluid.
摘要:
This invention relates to a nozzle for applying a lining material onto an inner surface of a pipe to create a lining in the pipe, comprising: a radially inner space (107) for receiving the lining material, said radially inner space having an axial extension, a first and second axially distributed outlet portions (111,111a,111b,...) arranged to allow lining material to leave the radially inner space in at least a radially outward direction, and at least one distribution member (104) arranged radially outside the radially inner space (107) and arranged to rotate about the radially inner space such that the at least one distribution member during rotation passes by the first and second outlet portions and receives lining material leaving the radially inner space.