770 results about "Jet (fluid)" patented technology

A siphonic gravity-powered toilet is provided that is a rimless toilet and includes a toilet bowl assembly having a body and an inlet for receiving fluid. The toilet bowl has an interior bowl surface with an upper peripheral portion configured to have a shelf formed therein below an upper peripheral edge of the toilet bowl. The rimless toilet includes a jet having a jet inlet, an outlet and at least one jet channel. A manifold is included which is configured so that fluid entering an inlet of the toilet bowl assembly divides into a portion that enters the inlet of the direct-fed jet and a portion that enters an interior area of the toilet bowl. At least one toilet bowl inlet port is positioned at an upper rear portion of the toilet bowl. The at least one inlet port is configured to receive fluid from the manifold into the interior area of the toilet bowl such that at least a portion of the fluid travels along the shelf of the toilet bowl prior to passing into a lower portion of the toilet bowl.

A full coverage fluidic oscillator (2) includes a fluidic circuit member preferably having an oscillation inducing internal chamber, at least one inlet (8) or source of fluid under pressure, at least a pair of output nozzles (14, 16) connected to the source of fluid for projecting at least first and second impinging fluid jets into free space, where the first and second impinging jets collide or impinge upon one another at a selected jet angle to generate a substantially omni-directional sheet jet having selected thickness. The first and second jets are aimed at a pre-selected intersection point in free space where impingement is to occur. The sheet jet's thickness Δy is determined by the time-varying path or oscillation of each of the first and second impinging jets. The first and second impinging jets can be made to oscillate or pulsate by use of vortex generating amplifier structures (68, 70, 72, 149) within the internal chamber's fluid flow paths.

A fluid can be discontinuously atomized with an atomizer of the present invention. The atomizer can include a helical spring, disk spring or gas spring, acting as a pressure spring, as an energy storage device, a cylinder, piston, two ducts and two valves. Atomization can be initiated manually by triggering a locking mechanism. The energy storage device can be disposed outside a storage container for the fluid. The energy storage device can be provided mechanical energy manually. Via the piston, the stored energy can exert pressure onto the fluid in the cylinder, which ranges from 1 MPa to 5 MPa (10 bar to 50 bar). Distribution of the droplet size in the atomized jet can be independent from the level of experience and behavior of the person actuating the atomizer, and can be adjusted in a reproducible manner. The mean droplet diameter can be smaller than about 50 micrometers. The mass flow of the fluid through the nozzle can be less than about 0.4 g/s. The design and function of the atomizer can be adjusted to properties of the fluid, to a planned application, and to a desired manner for handling the atomizer.

Microfluidic devices and methods for their use in producing pulsed microfluidic jets in a fluid environment are provided. The subject microfluidic devices are characterized by the presence of a microfluid chamber at their distal ends. The microfluid chamber is bounded by an opening at one end, a vapor producing means opposite the opening, and side walls between the opening and the vapor producing means. The microfluid chambers are further characterized in that the only way fluid can exit the microfluid chambers is through the opening. In using the subject devices to produce a fluid jet in a fluid environment, the chamber is first contacted with the fluid environment. The vapor producing means is then actuated in a manner sufficient to produce a vapor bubble in the chamber which, in turn, produces a microfluidic jet in the fluid environment. The subject devices and methods find use in a variety of different applications, e.g., cutting tissue, introducing fluid into a cell, and the like.

The liquid to be atomized is uniformly sprayed on the inner surface of a hollow rotating cylinder, for example by means of one- or two-fluid-nozzles and is thus distributed on bores provided in the cylinder wall. The rotation of the cylinder causes the liquid to flow outwards through the bores. Droplets are generated when the liquid flows out of the bores by laminary decomposition of the jet. The flow rate in each bore lies in the range 1.0<+E,dot V+EE B (a3 rho 5/ sigma 5)0.25<16 to prevent the droplets from becoming too large and to satisfy the condition of an adequate flow laminarity, i.e. for the value of the Reynolds number for the continuous liquid flow in the boress not to exceed Re delta 400. +E,dot V+EE B represents the flow rate of the liquid in each bore, a represents the centrifugal acceleration at the outer surface of the cylinder, rho represents the density of the liquid and delta indicates the surface tension of the liquid. The large number N>200 of bores having the diameter DB in the cylinder wall causes the flow rate of liquid through each bore to be relatively low, so that a continuous laminary flow in each bore is ensured even at low viscosities and technically useful total flow rates. Preferably cylindrical bores with a minimum length at least three times larger than the bore diameter are provided in the cylinder wall, with a narrow spacing in the range defined by 1.1<t/DB<5, so that a number of bores as large as possible may be arranged in the wall of the cylinder.

The invention relates to a column tube type impinging stream reactor and an operating system for producing toluene diisocynate. The upper head of the column tube type impinging stream reactor is connected with a barrel body on which a barrel body feeding hole (4) is arranged, the column tubes pass through the barrel body and are evenly distributed on the upper tube-plate and the lower tube-plate in the barrel body, jet orifices (10) of the lower tube-plate are evenly distributed on the lower tube-plate; the lower end of the column tube is connected with an expanding section of the column tube; and the jet orifices (9) of the column tubes are arranged on the lower ends of the column tubes and the expanding sections of the column tubes. A stream of material is injected by the jet orifices (10) of the lower tube-plate in a jet current mode; around the jet orifices of the lower tube-plate, the column tubes and column tube expanding sections are arranged in parallel and are vertical to the lower tube-plate; the other stream of fluid is injected into an impinging mixed zone with a certain angle in a jet current mode by the jet orifices (9) of the column tubes arranged on the column tubes and the column tube expanding sections and is impacted with the first stream of material and then is quickly mixed; and the reaction material enters into a second reaction zone (12) for further reaction. The size of the impinging mixed zone can be flexibly changed by adjusting the structure parameters of the mixed zone, therefore, the reactor has strong adaptability.

A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel, the at least one jet channel having an inlet port and a jet outlet port configured for discharging fluid to a sump area, wherein the sump area is in fluid communication with a trapway. The bowl has a closed jet pathway including the jet channel and extending from the jet flush valve assembly outlet to the jet channel outlet port to maintain the jet channel in a primed state with fluid from the jet flush valve assembly so as to assist in preventing air from entering the closed jet pathway. Flush valves are also disclosed having back-flow preventer mechanisms and/or at least partly flexible valve covers for use with the toilet systems and methods herein

A direct liquid jet impingement module and associated method of providing such used in cooling of electronic components housed in an electronic package is provided. The module comprises a frame having an orifice to be placed over to-be-cooled components. A manifold is then disposed over the frame, such that the manifold opening is aligned with the frame orifice to ultimately enable fluid impingement on the to-be-cooled components. The manifold is formed to receive an inlet for the flow of coolants and an outlet fitting for removal of dissipated heat. A jet orifice plate is also provided inside the manifold opening, aligned with the frame orifice for directing fluid coolant flow over to-be-cooled components.

A multi-stage diffuser nozzle for use as a drill bit nozzle jet includes a flow restriction portion upstream of a fluidic distributor portion, and also preferably includes a transition region between these two. The flow restrictor communicates with the interior fluid plenum of a drill bit and is used to limit or restrict the total flow of drilling fluid by having a relatively small cross-sectional area for fluid flow. The fluidic distributor communicates with the flow restrictor and reduces the exit flow velocities of the drilling fluid as the drilling fluid is ejected from the nozzle by providing a relatively larger cross-sectional area for fluid flow. The fluidic distributor also directs the flow paths of the drilling fluid to locations such as cone surfaces that are prone to bit balling. The transition region is an area that dampens fluid pressure oscillations in the drilling fluid.

An axial-flow type jet flow gas wave pressure supercharger relies on operation of pressure wave to achieve energy exchange between high-pressure gas and low-pressure gas, avoids mixed diffusion energy loss and has the advantages of being high in isentropic efficiency, low in rotation speed, capable of working with fluid and the like. A pressure oscillation tube channel with variable rectangular cross section is adopted to reduce incident loss and flow loss of jet flows. A pressure equalizing port is arranged in the pressure supercharger so that performance of different pressure ratios is balanced. A pressure expansion fluid director is arranged at the position of a compression fluid outlet to effectively convert air flow kinetic energy. The axial-flow type jet flow gas wave pressure supercharger can fully utilize pressure energy in the production process and stratal pressure energy such as natural gas and can serve as an efficient device for effectively utilizing the pressure energy.

The invention concerns a device for injecting fluids inside a rotary fluidized bed wherein the fluid jets are oriented in the rotational direction of the fluidized bed and surrounded with at least one deflector delimiting around said jets a space generally convergent then divergent and upstream of said jet passages through which suspended particles in the rotary fluidized bed can penetrate so as to be mixed with the fluid jets which transfer to them part of their kinetic energy before leaving said space.

The invention provides a method of a pulse-jet membrane bioreactor and a device for realizing the method. The method adopts a jet aerator to replace a traditional blower to realize the cross-flow scouring effect of membrane components; wherein, circulating fluid flows through the jet aerator at high speed; air enters the jet aerator in a pulse way by a valve controlled by PLC and jets at the bottom through a gas spreading distributor; the PLC system regulates the cross-flow state of gas-liquid two-phase flow on the membrane surface by changing circulation flow rate and pulse frequency, so as to improve the scouring effect of the air to the membrane surface, to further control membrane pollution, to improve the energy utilization efficiency of a circulating pump and to reserve energy. The use of the jet aerator also increases the utilization efficiency of oxygen and improves sludge degradation effect. The device has the advantages of low operation energy consumption and low operation noise, slight membrane pollution, less early investment in equipment, simple structure of the device, small occupation area, simple and convenient operation and convenience in automatic running and control.

An apparatus for boosting the pressure of flowing fluids includes a plurality of jet pumps (10a, 10b), each having a LP inlet for LP fluid, a HP inlet for HP liquid and a MP outlet for MP fluid. A fluid separator device (16) is connected to receive the MP fluid from the outlets of the jet pumps, a gas outlet line (20) for a separated gas phase and a liquid outlet (22a, 22b) for separated liquid phase. A liquid return line (24b, 38) is connected to the liquid outlet of the fluid separator device and the HP inlets of the jet pumps (10a, 10b) for returning at least some of the separated liquid phase from the fluid separator device to the HP inlets of the jet pumps, and a mechanical pump (32) is connected into the liquid return line for boosting the pressure of the liquid delivered to the HP inlets of the jet pumps. A flow control system (6) is provided for controlling the flow of fluids through the respective jet pumps (10a, 10b).

A nozzle assembly for generating fluid jets, such as self-spinning fluid jets. A nozzle body includes a cylindrical nozzle cavity, an inlet, an outlet, and a tubular nozzle rotor assembly positioned with respect to the nozzle cavity. The nozzle rotor assembly can have a ball end and a tubular end and a central fluid passage routed through the nozzle rotor assembly. A fluid swirl enhancer forms communication with the inlet. A replaceable nozzle seat forms communication with the ball end of the nozzle rotor assembly and with the outlet. The ball end of the nozzle rotor assembly pivots, oscillates and rotates against the nozzle seat when pressurized fluid flows through the nozzle assembly.

The invention discloses a lubricating and cooling jet nozzle for a multi-station automatic cold header, comprising an oil fluid jet pipe and an airflow jet pipe coaxially sleeved out of the oil fluid jet pipe; wherein an oil inlet is arranged at the tail end of the oil fluid jet pipe; a shrinkable oil fluid nozzle is arranged at the front end of the oil fluid jet pipe; an air inlet is arranged at the tail part of the airflow jet pipe; an annular clearance between the inner peripheral wall of the airflow jet pipe and the outer peripheral wall of the oil fluid jet pipe forms an airflow channel; an annular air nozzle is arranged at the front end of the airflow jet pipe; the successive cylindrical oil jet jetted from the shrinkable oil fluid nozzle and the annular airflow jetted from the annular air nozzle form oil-air binary air-in-oil concentric jet flow, the oil and the air are not mixed, so that the low-pressure oil fluid under the holding of high-speed airflow is jetted to the surface of headed material and contact surface between the mold and the headed material during operation, the penetrability of the oil fluid molecule on the surface of the headed material and the contact surface between the mold and the headed material is higher, so that the lubricating and cooling effects are more sufficient, and the effects are maximized.