3198 results about "Injection pump" patented technology

Relating to the technical field of harmless treatment of petroleum exploitation sludge, the invention provides a harmless reinjection treatment method for petroleum exploitation sludge. By means of a pump station composed of several hydraulic injection pumps in parallel connection, the sludge generated in petroleum exploitation is sent to an abandoned layer of an oil field. The method provided in the invention employs the hydraulic injection pumps with long stroke, low stroke frequency and high pressure to inject the sludge into the abandoned layer of the oil field, therefore, the treatment problem of oilfield exploitation sludge is solved, and simultaneously the sludge is returned to underground, thus realizing recycling of petroleum resources in the sludge, enhancing the petroleum recovery rate of the oil field, and changing the waste petroleum exploitation sludge into things of value.

Systems, apparatus and methods are provided through which an injector system automates a process of injecting an individual dose from a multiple dose of a radiotracer material. In some embodiments, the injector system includes a first dose calibrator system that receives a multidose vial of a radiotracer, a second dose calibrator system, an injection pump and an intravenous needle. In some embodiments, the first dose calibrator system and the multidose vial have an integrated shape. In some embodiments, the first dose calibrator system includes a pneumatic arm that receives the multidose vial.

An apparatus for producing electrolyzed water includes an electrochemical cell and a solution reservoir containing a solution and having an outlet. An injection pump has an input end in fluid communication with the outlet of the solution reservoir and an output end in fluid communication with the electrochemical cell, wherein the injection pumps an amount of the solution from the solution reservoir to mix with a water solution and enter the electrochemical cell. A current feedback sensor senses a cell current in the electrochemical cell. A current control unit in data communication with the current feedback sensor and the injection pump wherein the current control unit compares the cell current with a preselected current and adjusts the amount of solution pumped from the injection pump responsive to the comparison. The apparatus may also include an automatic control feedback system to monitor and adjust pH.

The present invention relates to a turbocharged internal combustion engine (ICE) system having fast response to increased power demand and reduced response time lag. The system includes a vortex tube for delivering cold air into the turbocharger compressor where it may be used to cool the impeller, and/or accelerate the impeller rotational speed, and/or favorably shift the compressor surge line at low speeds and high loads. Cold air from the vortex tube may be also used to operate an ejector pump in the intake duct which further compresses intake air and increases engine charge weight during periods of high power demand. In addition to increasing engine output power, delivery of cold air into engine intake also reduces engine pre-ignition (knocking) thereby reducing emissions. The invention also relates to a method for operating a turbocharged internal combustion engine.

A fluid separation system is provided for separating wellbore fluids into production fluids and non-production fluids. The system includes a separator adapted for transmitting mechanical power between a drive motor and at least one pump. The separator includes one or more separation units, such as hydrocyclone separators. A drive train traversing the separator is interfaced with drive elements, such as a submergible electric motor, and driven elements such as an injection or production pump. Wellbore fluids are channeled through the separator in either a push-through or pull-through manner. Production fluids are then transferred from the separator to the production pump for removal from the well. Non-production fluids are transmitted from the separator either to the injection pump for reinjection into a subterranean discharge zone, or directly into the discharge zone from the separator. The drive train elements traversing the separator are supported by antifriction bearings in interface plates on either end of the separator. The ability to transmit mechanical power through the separator facilitates assembly of pumping system components in various configurations as well as piping fluid communication paths between the pumping system components.

The invention belongs to safety equipment for a nuclear power plant, in particular to a passive and active combined special safety system for the nuclear power plant. The system comprises a passive high-pressure core water supply tank, an accumulator, a low-pressure safety injection pump, a refueling water tank, a secondary-side passive residual heat removal heat exchanger, a vapor condensation water tank, a containment spray system, a passive reactor cavity water injection system, related valves and related pipes. When the nuclear power plant has a design basis accident or beyond design basis accident, through a series of passive and active safety facilities used in all steps, the circuit of a reactor and the core can be cooled effectively, so that the nuclear power plant can enter a safe cold shutdown condition smoothly; and thus, the serious accident consequence of the reactor is inhibited or relieved, damage caused by accidents is relieved, and the safety of the nuclear power plant is improved.

A system for achieving a boundary layer control by sucking at least a portion of the boundary layer air flow through perforated or porous suction areas on the outer skin of the wings or other areas of the aircraft, includes one or more jet pumps (7) arranged in the bypass engine (5) of the aircraft, and a system of suction conduits (4) connecting the jet pumps (7) to suction channels (3A) communicating with the perforated or porous suction areas (3). Each jet pump (7) includes an ejector pipe (101) that is driven by an external surrounding driving jet (8) or by an internal driving jet (8) flowing through an internal jet pipe (15). The jet pumps (7) are arranged at selected locations in the air intake upstream of the fan, in the bypass channel (18) just downstream of the fan, in the bypass channel near the outlet end thereof, in the core hot gas channel (19) upstream of a compressor assembly, and/or in the core channel downstream of a turbine assembly. The jet pumps (7) provide an efficient, maintenance-free, reliable, and easily installable suction generator system.

A multi-channel loading device comprises a beam, a plurality of sampler injector fixing rods are arranged on the beam, a sample placing pad is arranged below the beam, each sampler fixing rod is provided with a sampler comprising a sampling pin which is hollow and arranged vertically, the lower part of each sampling pin is intercalated with a suction end, each sampling pin is arranged on an injection pump base and connected with an injection pipeline in the injection pump base, each injection pipeline is respectively provided with a pressure sensor used for measuring the pressure in each injection pipeline, the upper part of each injection pump is provided with a push-and-pull rod inserted into a solution cavity vertically, the top of each push-and-pull rod is connected with a leadscrew nut which is rotationally mounted on a leadscrew vertically. The invention aims at providing the multi-channel sampling device with high accuracy and good stability of solution suction and separation, strong adaptability and capacity in reducing and avoiding cross infection among samples.

A system for automatically transferring the fuel from one or more engine fuel manifolds directly to the engine fuel tank(s) during engine shutdown using an ejector pump has been presented. A checkvalve, which may be integrated with the ejector pump, is also used. A metering valve initiates fuel flow shutoff and is used in the draining of the fuel manifolds, thereby eliminating the need for an additional solenoid dedicated mainly to the shutoff function. The shutoff and pressurizing valve provides flow division between manifolds and manifold drain for systems having multiple manifolds. The bypass valve is used to turn the motive flow and/or manifold drain functions on and off as a function of engine speed at start and shutdown.

A system for injecting a fluid into a formation including a fluid, and at least one injection pump configured to receive the fluid, the at least one pump including a centrifugal pump having at least two stages configured to increase the pressure of the received fluid is disclosed. The system further includes a drive device coupled to the injection pump. A method of injecting a fluid downhole including providing a fluid to an injection pump, the injection pump including a centrifugal pump having at least two stages, pumping the fluid through the at least two stages of the centrifugal pump, thereby increasing the pressure of the fluid, and injecting the fluid from the injection pump into a wellbore is also disclosed.

A fuel cell system comprising a fuel cell stack, a fuel recirculation line provided with a jet pump and a valve controlled by a control unit based on the anode-cathode pressure differential such that the valve is closed to reduce or stop fuel supply when the anode-cathode pressure differential reaches a predetermined value, and opened again to circulate more fuel through the jet pump when the pressure differential is below a predetermined value, to create a pulsed fuel supply that improves the fuel recirculation at low loads and ensures adequate water removal from the anode flow field channels.

The invention relates to a safety injection system, which is used for mitigating an accident and protecting the safety of a reactor core of a nuclear power plant and comprises a high-pressure safety injection pump, a low-pressure safety injection pump, a safety injection tank and a refueling water tank for containing safety injection water, wherein the refueling water tank is positioned in a safety shell of the nuclear power plant; the safety injection tank is connected on a direct pressure vessel injection pipeline by a pipeline provided with a control valve; the high-pressure safety injection pump is connected between the refueling water tank and the direct pressure vessel injection pipeline by a pipeline provided with a control valve; and the low-pressure safety injection pump is connected between the refueling water tank and the direct pressure vessel injection pipeline by a pipeline provided with a control valve. The safety injection system has the advantages of reducing cross pipelines of the system, realizing continuous operation, simplifying the system operation, also strengthening mitigating capability of the system for the serious accident and improving safety of the nuclear power plant.

A fuel delivery system for delivering fuel from a fuel tank to an engine includes a reservoir disposed within the fuel tank and a fuel pump, such as an electrically driven fuel pump, operable to draw fuel from within the reservoir. The fuel pump has a first port and a second port that independently discharge the fuel from the fuel pump. A first jet pump is operable to draw the fuel within the fuel tank into the reservoir. A first flow path communicates between the first port and the engine. A second flow path communicates between the second port and the first jet pump, so that the fuel within the fuel tank is transferred into the reservoir due to the flow of the fuel supplied to the first jet pump via the second flow path.

The invention relates to a system and method for a visualization fracturing simulation experiment. According to the technical scheme, the system comprises a visualization fracturing simulation experiment device, a pressure control module and a data acquisition module, wherein the visualization fracturing simulation experiment device is a square container, the pressure control module comprises a servo control injection pump, a confining pressure pump and the like, and the data acquisition module comprises a pressure data recorder and a high-definition high-frequency vidicon. Through combination of the visualization fracturing simulation experiment device and transparent specimens, crack initiation characteristics and expanding dynamic states of hydraulic fractures in interiors of the experiment specimens can be clearly known by researchers, and study of crack initiation mechanisms and expanding rules of the hydraulic fractures are deepened. According to the experiment method, crack initiation and expanding dynamic state videos of the fractures can be obtained, crack initiation and the expanding rules of the fractures can be clearly showed, storage of video data is simple, spreading is convenient, and the method can help the researchers to exchange experiment achievements across regions.

A new approach is disclosed for measuring the pressure of tight gas reservoirs, using information obtain from continuous injection prior to hydraulic fracture stimulation. The technique can be obtained utilizing either bottom-hole or surface pressure gauges and properly instrumented surface injection pumps. The analysis is completed by plotting injection and rate data in a specialized form from terms arranged in Darcy's radial flow equation to obtain a curve or trend. The key component to proper application of this technique is to obtain both baseline and one or more calibration data sets. These calibration data sets are obtained by either increasing or decreasing the injection pressure and/or rate from the baseline data. Initial reservoir pressure is assumed, but the calibration data indicates if the guess was too high or low. Accurate estimates of reservoir pressure may be obtained in a few iterations.

A fuel cell system includes a primary fuel line to the fuel cell assembly, a jet pump in the primary fuel line and adapted to be driven by the flow of primary fuel, the jet pump having a nozzle, an entrainment chamber downstream of the nozzle and a mixing tube downstream of the entrainment chamber, a fuel exhaust recycle line from the fuel cell assembly opening to the entrainment chamber for supply of fuel exhaust thereto, and a mass flow control device in the primary fuel line upstream of the jet pump for controlling the primary fuel flow rate to the jet pump. The nozzle of the jet pump has an adjustable cross-sectional area to provide a variable area flow of the primary fuel so that the ratio of fuel exhaust entrained by the primary fuel in the entrainment chamber can be varied.

A crankcase ventilation system for an internal combustion engine has a jet pump suctioning scavenged separated oil from the oil outlet of an air/oil separator and pumping same to the crankcase.

The present invention provides a fuel delivery system for a saddle fuel tank wherein a fuel pump and a jet pump are positioned within an active side of the tank. The jet pump is directly driven by the fuel pump to draw the fuel from a passive side of the tank to the active side of the tank.

The invention relates to a method for combined synthesis of molecular engram microspheres through a micro-fluidic reactor, which is characterized in that a micro-fluidic reactor system comprises a fluid drive unit (an injection pump group), a liquid droplet or milk droplet forming unit and an ultraviolet illumination and polymerization unit, wherein the micro-fluidic reactor comprises n groups of '*'-shaped microchannels with the same structure, and can simultaneously prepare the molecular engram microspheres under n conditions or prepare the molecular engram microspheres of n template molecules; and dispersed phases and continuous phases are driven by injection pumps to enter respective microchannels and form milk droplets when encountering each other on crossings of the microchannels, and the prepared milk droplets arrive at the ultraviolet illumination unit for polymerization reaction.

The invention provides a low-melting-point metal multi-dimensional structure liquid phase printing system. The low-melting-point metal multi-dimensional structure liquid phase printing system comprises an injection pump array, an injection needle array, a liquid metal tank, a thermostat, a thermostatic bath and a control unit. The injection pump array includes m*n of injection pumps and an inlet of every injection pump is connection with the liquid metal tank. Injection needles are perpendicular to the thermostatic bath and liquid inlets of the injection needles are connected to outlet ends of the injection pumps respectively. The control unit is connected to the injection pump array. A low-melting-point metal multi-dimensional structure liquid phase printing method uses the smart control mechanism of fluid for applying effective buffer, crushing and buoyancy actions to liquid metal injection droplets, and the liquid cooling treatment more efficient than a traditional gas cooling mode can be provided for enabling liquid metal injected into a liquid phase environment to be quickly solidified due to the large heat capacity, so that short-time forming of a multi-dimensional structure is achieved, and meanwhile the oxidation not easy to avoid in a traditional method is reduced.