177 results about "Fluid particle" patented technology

An electromagnetically induced cutting mechanism provides accurate cutting operations on soft tissues. The electromagnetically induced cutter is adapted to interact with atomized fluid particles. A tissue remover comprises an aspiration cannula housing a fluid and energy guide for conducting electromagnetically induced cutting forces to the site within a patient's body for aspiration of soft tissue. The cannula is provided with a cannula distal end. The proximal end of the cannula is provided with fluid flow connection to an aspiration source. Separated soft tissue and fluid are aspirated through the cannula distal end and the cannula by an aspiration source at the proximal end of the cannula.

A system and method for suppressing dust and/or odors. The system includes a fan-propelled mister that propels air through one or more discharge tubes to create a high velocity airflow. A misting ring having a plurality of nozzles adjacent the end of the discharge tube acts to create a mist of small fluid particles. In one embodiment, the misting ring includes a first set of nozzles for generating a mist having fluid particles of a first size for controlling or suppressing dust and a second set of nozzles for generating a mist having fluid particles of a second set for suppressing odor. The system may also include one or more high pressure hoses to saturate a particular area or zone. The mister may also be adjusted to direct the output and/or oscillate to cover a greater area.

A gas turbine combustor (3) capable of reducing combustion vibration to stably reduce NOx, comprising a first box body (30) disposed on the outside of an objective body (20) having an inner tube (6), a tail tube (7), and a bypass duct (11) and forming a first internal space (31) of a specified volume and a first throat (32) of a specified length having one end (32a) opening to the side wall (20a) of the objective body (20) and the other end (32b) opening into the first internal space (31), wherein a first resistance body (33) having a large number of through-holes is fittedly inserted into one end (32a), fluid particles as vibration elements for the combustion vibration produced in a combustion area are effectively captured by the first resistance body (33) and resonated with air in the first internal space (31) connected thereto through the first throat (32) to vibrate near the first resistance body (33) so as to attenuate the amplitude of the vibration thereof.

An electromagnetically induced cutting mechanism provides accurate cutting operations on soft tissues. The electromagnetically induced cutter is adapted to interact with atomized fluid particles. A tissue remover comprises an aspiration cannula housing a fluid and energy guide for conducting electromagnetically induced cutting forces to the site within a patient's body for aspiration of soft tissue. An endodontic probe is used to perform disinfection procedures on target tissues within root canal passages and tubules. The endodontic probe can include an electromagnetic radiation emitting fiber optic tip having a distal end and a radiation emitting region disposed proximally of the distal end. According to one aspect, the endodontic probe can include a porous structure that encompasses a region of the fiber optic tip excluding the radiation emitting region and that is loaded with biologically-active particles, cleaning particles, biologically-active agents, or cleaning agents for delivery from the porous structure onto the target tissues. Another aspect can include provision of the endodontic probe with an adjustable channel-depth indicator, which encompasses a region of the fiber optic tip besides the radiation emitting region and which is movable in proximal and distal directions along a surface of the fiber optic tip to facilitate the provision of depth-of-insertion information to users of the endodontic probe.

The invention provides a fluid-solid coupling method based on smoothed-particle hydrodynamics (SPH) and nonlinear finite elements. The method comprises the following six steps: at a collision detection stage, detecting collision information of fluid particles with a finite element network; at an agent particle generation stage, generating collision agent particles presenting a finite element model according to the collision information for processing the collision between a fluid and a solid; at a coupling force calculation stage, calculating force generated by collision between agent particles and fluid particles according to the position and speed relations of the agent particles and the fluid particles; at a coupling force allocation stage, controlling the position relation of the agent particles and the finite element model and allocating the coupling force to a finite element stress model; at a position and speed updating stage, driving the position and speed update of the finite element model and a fluid particle model according to the calculated coupling force; at a non-penetration modification stage, modifying penetration fluid particles according to an updated position.

The invention relates to a microwave measuring device for determining the load of a two-phase fluid having a gaseous carrier medium containing fine and minute solid and/or liquid particles, and for determining the gas contained in the fluid flow, preferably by The way of waveguide carrier. A preferred application of the invention is for the determination of solid particles contained in gas streams of large volume pneumatic solids transport systems, for example in pulverized coal furnaces of coal-fired power stations. The inventive microwave measuring device is provided with field rods protruding into the feed pipe, arranged in front of and behind the measuring section formed by the transmitting and receiving antennas, said field rods being made of conductive material The feed duct intersects, as a resonator for the microwaves input into the feed duct via the transmission antenna, as a result of diffraction, overlap and/or reflection outside the measurement section microwaves in their plane of polarization and/or phase different from the input microwaves Essentially shorted to prevent distortion of measurements. The inventive device has the particular advantage of being simple in construction and easy to install even in large-volume and branched feed pipeline systems.

A fixing liquid is provided which fixes a toner comprising a resin on a recording medium, in which a fluid particle comprising a component which dissolves or swells at least a portion of the resin comprised in the toner is dispersed in a dispersive medium, as a micro-emulsion.

The invention relates to simplified smoothed particle hydrodynamics. For efficient smooth particle hydrodynamics using more particle information, virtual particles are created. Each virtual particle represents an averaging of properties for the fluid particles in a cell. For density, force, or other calculations for a given fluid particle, the interaction between the particles within a cell are calculated. For calculating the influence of particles outside the cell on the particle in the cell, the virtual particles from the neighboring cells are used. The interaction with these aggregate particles reduces the number of calculations while still including the influence from particles of other cells.

The invention discloses a distorted Dammann grating and a system for simultaneously imaging multiple object planes. The system for simultaneously imaging multiple object planes which consists of a distorted Dammann grating and a focusing lens can be used for forming a multi-focus array of multiple equal-strength focusing light spots which are deviated simultaneously along axial and transverse directions in a back field of the focusing lens. The focus quantity and focus interval of the multi-focus system can be adjusted by changing the parameters of the distorted Dammann grating. An equal-strength multi-focus system can be used for imaging a plurality of axial planes of an object space in the same image plane. According to the system, a real-time three-dimensional imaging technology which does not require axial scanning can be realized. The real-time three-dimensional imaging technology has an important practical value in three-dimensional real-time monitoring of biological living body cell microscopy and fluid particles.

A medical apparatus is constructed to have a proximal end and a distal end, with the distal end including a source of mechanical tissue disruption that is configured to treat or ablate a target surface. The source of mechanical tissue disruption includes a tissue-disrupting distal end, and the medical apparatus further includes a flavored particle output for directing flavored particles in a direction toward the tissue-disrupting distal end. Another feature of the present invention includes a medical apparatus having a proximal end and a distal end. The distal end of the medical apparatus includes a source of tissue displacement that is configured to move or displace a portion of the target surface, and that is formed to have a tissue-displacing distal end. The medical apparatus can be configured to have a flavored particle output for directing flavored particles in a direction toward the tissue-displacing distal end.

A nozzle and a method of generating an aerosol from a fluid and a gas by operating the nozzle. The nozzle has an aerosol exit orifice of a larger diameter and a fluid exit orifice of a smaller diameter aligned on a common central axis. A pressurized gas from a pressurized gas exit in close proximity to the fluid exit orifice intersects a fluid jet exiting from the fluid exit orifice at that acute angle and in a distance from the aerosol exit orifice. The method includes aerosolizing a fluid with a viscosity exceeding 4 cSt delivering an inhalable medication at a rate of more than 1 ml/minute, thereby delivering a medication at a mass flow rate of at least 30 mg/minute in form of the fluid particles having a mass median aerodynamic diameter (MMAD) of 6 μm or less.

A spray nozzle for providing a high efficient atomization and a uniform fluid flow pattern, includes an internal fluid channel, sealing and a spray nozzle, on which two of spray orifices are designed close to each other. The fluid flow is guided in the internal fluid channel smoothly and separated to two fluid flows inside of spray nozzle. These two fluid flows are pressed out from the spray orifices and interfered with each other right after flow out from the spray orifices. The fluid is being atomized efficiently because the spray nozzle is designed to fully utilize both flow velocity energy and flow pressure potential energy, which is well known as “Potential Core” or “Potential Zone” and will disappear in a very short distance right after fluids flow out from the spray orifices. During the fluid flows collide with each other by using the flow velocity right after flow out from the orifices, the fluid flows explode within the potential core by using the flow pressure potential energy. And then, the fluid flow and the fluid particles are continuously atomized by using the velocity difference between the fluid flow and the air around the fluid flow to have very fine particles.

A medical apparatus is constructed to have a proximal end and a distal end, with the distal end including a source of mechanical tissue disruption that is configured to treat or ablate a target surface. The source of mechanical tissue disruption includes a tissue-disrupting distal end, and the medical apparatus further includes a flavored particle output for directing flavored particles in a direction toward the tissue-disrupting distal end. Another feature of the present invention includes a medical apparatus having a proximal end and a distal end. The distal end of the medical apparatus includes a source of tissue displacement that is configured to move or displace a portion of the target surface, and that is formed to have a tissue-displacing distal end. The medical apparatus can be configured to have a flavored particle output for directing flavored particles in a direction toward the tissue-displacing distal end.

The invention provides a motor with a cooling duct. The motor is a totally enclosed forced air-cooled traction motor. The motor comprises a motor inlet, a motor outlet and a stator. A number of statorcooling ducts are arranged in a circumferential direction in the stator. The stator cooling ducts are respectively communicated with the motor inlet and the motor outlet. A number of turbulence blocks are arranged on the inner wall of the stator cooling ducts. The invention is further applicable to a variety of other motors. The turbulence blocks are arranged in the cooling ducts, which enhancesthe disturbance to a cooling medium, exacerbates the irregular change of a fluid, and enhances the pulsation of fluid particles in all directions in the cooling ducts. The fluid turbulence is enhanced. The convection heat transfer coefficient of the side of the cooling ducts is increased, and the heat transfer rate is increased. The weight of the motor can be effectively controlled, which is conducive to lightweight design.

The invention discloses a meshless particle method for analyzing trapped air mass-containing transient pipe flow. The meshless particle method comprises the following steps of (1) initializing relevant variable and particle information; (2) carrying out iterative computation, namely circulating a time variable, circulating particles, calculating pressure information of fluid particles of the initialized particles and updating the pressure information of the fluid particles, the pressure information of upstream virtual particles, speed information of the fluid particles, speeds of upstream and downstream virtual particles, particle positions and corresponding pressure and speed information and the pressure information of downstream virtual particles; and (3) outputting the result. A water hammer equation under a lagrange system is solved by adopting a smoothed particle hydrodynamics method; the influences caused by movement of a gas-liquid interface and weak compressibility of water are fully considered; various errors caused by interpolation and gas-liquid interface tracking technologies are reduced; and the trapped air mass-containing transient pipe flow can be more conveniently simulated on the premise of meeting the numerical precision.

The invention relates to a coupling type inertial cyclone fluid particle heterogeneous separation device and method. The device comprises an inertial curve and a cyclone separator coupled with the inertial curve and provided with an integrated volute tangential inlet. The inertial curve and the cyclone separator are integrally coupled, the fluid phase and the particle phase firstly enter an inertial curve body through an external pipeline, the differential particle concentration gradient is generated, the fluid phase and the particle phase enter the cyclone separator integrally coupled with the inertial curve to be separated, and therefore the defects existing in the separation process under the particle concentration uniformity or concentration-gradient-free condition in the traditional separation process are overcome. The inertial curve is organically integrated into fluid-particle radial concentration space, the concentration gradient with the outer portion higher than the inner portion is generated under the effect of a centrifugal field, the particle penetration amount caused by short-circuit current entrainment after particles enter the cyclone separator can be reduced, the distance or time of the particles moving towards the capture wall is shortened, and the heterogeneous separation efficiency is effectively improved under the condition that the pressure drop of the separator is not obviously increased.

A fluid particle cleaner and method are disclosed. The invention provides a partition to a side of a fluid nozzle to form: a central cavity configured to define the fluid departing the surface into a central cavity vortex; and a side cavity adjacent the central cavity to define fluid escaping from the central cavity into a side vortex. The vortices interact in a counter-rotating and stationary fashion. The strong and smaller central vortex creates an upward air velocity field that forces any airborne particle to move away from the surface. The side vortex is designed to: connect the central vortex velocity field to the vacuum flow and allow airborne particles to remain suspended until they reach the vacuum flow; and create a decelerating field for high speed particles traveling parallel (horizontally) to the surface to increase the residence time in the central vortex with positive vertical velocity.

A rotary slurrifier of this invention comprises a pair of spinning discs, which throw a first fluid into a larger mass of second fluid in paired and flow connected impact cavities, within a counter-rotating cavity shell. The first fluid is to be largely insoluble in the second fluid. Impact of the first fluid with the larger mass of second fluid, in the impact cavities, causes atomization of the first fluid into a slurry of many small first fluid particles suspended in a continuous phase of second fluid. The final slurry flows out of the rotating cavity shell via a slowdown reaction turbine.

High viscosity residual petroleum fuels and tars as first fluids can be thusly preatomized in a fuel in water slurry, and can then be cleanly and efficiently burned in small bore, high speed, diesel engines, which now require use of expensive low viscosity distillate fuels, which are in short supply.

The invention provides a beauty fluid atomization spraying device which comprises a pressurizing device. The pressurizing device comprises an air tap for spraying high-pressure air and a fluid container for containing beauty fluid. The beauty fluid is guided to flow to a spray nozzle by the fluid container through a mist outlet pipeline. The spray nozzle is located nearby the air tap. The high-pressure air sprayed out of the air tap enables negative pressure to be generated nearby the spray nozzle. The beauty fluid flows to a negative-pressure area, and the beauty fluid in the negative-pressure area is sprayed out by a certain dispersion angle in a mist mode through the high-pressure air. The spray pressure of the air tap can be adjusted. The beauty fluid can be sprayed to the surface of human skin in a mist mode, the beauty fluid can be absorbed by the skin and a corium layer conveniently, and the high-pressure air of the device has no harm to a human body. The size of mist-shaped fluid particles and the dispersion angle of spraying can be adjusted. The overall structure is simple, and use is convenient.

The invention belongs to the field of computer image processing, and relates to a control method and system for position-based fluid simulation. The method comprises: performing voxelization of a target shape model provided by a user to obtain control particles; allowing the user to provide a biovision hierarchical data (BVH) file for performing smoothness deformation of the control particles; and generating a segment of biovision driven animation sequence represented by the control particles. For controlling the shape of fluid simulation to match the generated model represented by the control particles, three control constraints are applied to fluid particles and comprise density constraint, elasticity constraint, and speed constraint, wherein the density constraint is used for driving the fluid particles to form a target shape; the elasticity constraint can drive the fluid particles to track the quickly changing target shape; and the speed constraint is used for controlling the speed of the fluid particles. According to the method and the system, under a condition that the fluid simulation is controlled to form the target shape set by the user, physical details and characteristics of the fluid are maintained. At the same time, by adopting a position-based physical calculation frame, a time step of random size is allowed to use, so that fluid in a large scale can be simulated and controlled.