71results about "Diffusion pumps" patented technology

This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the heating value of the converted hydrocarbons is recovered as heating value of the product methane. The liquid feed is distributed over a fluidized solid particulate catalyst containing alkali metal and carbon as petroleum coke at elevated temperature and pressure from the lower stage and transported to the upper stage of a two-stage reactor. Particulate solids containing carbon and alkali metal are circulated between the two stages. Superheated steam and recycled hydrogen and carbon monoxide are fed to the lower stage, fluidizing the particulate solids and gasifying some of the carbon. The gas phase from the lower stage passes through the upper stage, completing the reaction of the gas phase.

A fan assembly for creating an air current includes an air inlet, an air outlet, an impeller, a motor for rotating the impeller to create an air flow passing from the air inlet to the air outlet, the air outlet comprising an interior passage for receiving the air flow and a mouth for emitting the air flow, the air outlet defining an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth, a control circuit for controlling the motor, a remote control for transmitting control signals to the control circuit, and at least one magnet for attaching the remote control to the air outlet.

A Process Module (“PM”) is designed to facilitate Transport Polymerization (“TP”) of precursors that are useful for preparations of low Dielectric Constant (“∈”) films. The PM consists primarily of a Material Delivery System (“MDS”) with a high temperature Vapor Phase Controller (“VFC”), a TP Reactor, a Treatment Chamber, a Deposition Chamber and a Pumping System. The PM is designed to facilitate TP for new precursors and for film deposition and stabilization processes.

A fluid processing device for processing a multiphase fluid stream including a mixture of at least a gas and a liquid is disclosed. The fluid processing device may include at least one separator configured to separate the fluid stream into a liquid portion and a gaseous portion and deposit the liquid portion into a liquid reservoir. The gaseous portion may be directed to a compressor configured to pressurize and discharge a pressurized gas into a fluid discharge line. A portion of the pressurized gas may be further pressurized and directed to at least one ejector pump fluidly coupled to the liquid reservoir and configured to draw in liquid and discharge pressurized liquid into the fluid discharge line.

The invention discloses a micro disperse pump which comprises a pump chamber, a one-way valve, a pump inlet, a pump outlet and a driving device inside the pump chamber; wherein, the one-way valve is between the pump chamber and the pump inlet, and between the pump chamber and the pump outlet; the one-way valve is a wedge disperse tube with different positive and passive fluxes; the fluid of pump chamber can be expanded and contracted to generate pressure difference, and according to the different pressures of positive and passive fluxes in the wedge disperse tube, to generate one-way continuous fluid transmission. The inventive micro disperse pump can drive fluid via adsorbing fluid or directly drive fluid. The production is based on silicon micro-mechanical processing technique and micro-mould technique, with simple process, lower cost, high reliability and the application for integrating other micro-fluid systems. It has wider application in the micro-fluid control analysis chip.

A check valve which is positioned in the vacuum air line of an internal combustion engine. The check valve includes a single-piece valve body having an outlet port and two or more inlet ports, with one outlet port located substantially in line with the inlet port and connected by a venturi tube. The second inlet port is separated from the main air flow line by the valve stem and a diaphragm which allows communication there between and prevents back pressure. The second inlet port communicates with the outlet port through the valve stem and a second venturi tube which provides a vacuum boost to a device, usually vehicle brakes, connected to the inlet.

In a method for optimizing gas lift operations in the production of crude oil, a surfactant is injected with the lift gas into the an oil well such that the surface tension between the lift gas and the formation fluid being produced is reduced and/or a lift gas-formation fluid foam is formed. The reduction in surface tension and/or foam formation increases the efficiency of the lift gas for lifting the formation fluid to the surface. The surfactant is selected to minimize corrosion. The surfactants consist essentially of sultaines, hydroxy sultaines, and their salts. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

A jet pump apparatus for mixing a higher pressure gas from a higher pressure gas supply and a lower pressure gas from a lower pressure gas supply, includes an inlet section, an outlet section, a diffuser section and a mixing section, the inlet section including a higher pressure gas inlet and a lower pressure gas inlet, the mixing section including a plurality of separated mixing chambers, and the diffuser section including diffusers for receiving mixed gases from each of the mixing chambers, and the outlet section receiving mixed gases from the diffuser section and conveying the mixed gases to a mixed gas outlet, and the inlet section including a higher pressure gas inlet duct which receives higher pressure gas from the higher pressure gas inlet, and a lower pressure gas inlet duct which receives lower pressure gas from the lower pressure gas inlet, and for each of the plurality of mixing chambers, there being a primary nozzle for introducing primarily higher pressure gas from the higher pressure gas inlet duct to a respective mixing chamber, and there being a secondary inlet for introducing primarily lower pressure gas from the lower pressure inlet duct to each of the mixing chambers, the higher pressure gas being derived from a compressor section of a gas turbine engine.

An attachment for a fan, blower of other air moving device encompassing, and made of or designed to hold a scented material. The attachment may be constructed from any flexible, rigid or semi rigid material. A scented material base utilizing or made of paper, polymer, plastic, cardboard, ceramic, gel or other fragrance containing substrate that can be contained or placed inside said attachment. When the fan or blower is turned on a scent is emitted throughout the space. The attachment is available in standard or custom sizes, scents, shapes or colors to fit any standard fan or blower. The air movement produced creates a scent dispersion/diffusion effect.

When coils of a vacuum pump unit are excited by energization, a piston equipped with magnets reciprocates in a cylinder. Thus, air is sucked in from an outlet passage of a diffuser of an ejector, and air discharged from the vacuum pump unit is supplied to an inlet of a nozzle of the ejector. Consequently, a fast jet occurs in a throat portion of the nozzle, and a negative pressure of higher degree of vacuum than that of the suction negative pressure of the vacuum pump unit is produced at a vacuum port of the ejector. The negative pressure is supplied from a negative pressure supply port. The ejector can supply a negative pressure of high degree of vacuum while reducing the load on the vacuum pump unit.

The invention relates to a heater of an oil diffusion pump. The heater comprises a casing and an electric heating tube, wherein the electric heating tube is arranged in the casing, closely contacts the casting, extends out of the casting and is externally connected with a power cord. The invention provides an electric heating device of a high vacuum diffusion pump, which can effectively heat the diffusion pump at a high efficiency in a centralized mode and is convenient to maintain.

A device is provided for generating a vacuum for a vacuum cementing device, the device including a channel and a connector for a gas cartridge. The connector has an opener for opening the gas cartridge, and connects the gas cartridge to the channel in a pressure-tight manner, such that gas from the opened gas cartridge flows along the channel to the surroundings of the device. The channel includes at least one T-piece, provided as Venturi nozzle, having a vacuum connector for the vacuum cementing device, such that gas from the opened gas cartridge flowing through the channel generates a negative pressure at the vacuum connector. A method is also provided including steps of opening a gas cartridge, flowing gas from the gas cartridge through a Venturi nozzle, whereby by a negative pressure is generated, and applying the negative pressure to a vacuum cementing system.

The invention relates to an anti-explosion oil diffusion pump vacuum system and an anti-explosion control method of the vacuum system. The anti-explosion oil diffusion pump vacuum system comprises an oil diffusion pump system, wherein the oil diffusion pump system is provided with an oil diffusion pump, an air extraction opening of the oil diffusion pump is communicated with an air outlet of a vacuum chamber through a pipeline; the anti-explosion oil diffusion pump vacuum system further comprises a control system; the control system comprises a pressure detecting device which is arranged at a front-stage air exhaust pipeline of the oil diffusion pump, a temperature measuring device which is arranged inside the oil diffusion pump and which is used for detecting the oil temperature in real time, and a pressure measuring device for measuring the pressure inside the vacuum chamber; the control system is provided with a critical pressure Pq and an anti-explosion pressure Pfb; and the opening and closing of pump packages and valve groups in the oil diffusion pump system are controlled by the control system by acquiring real-time data measured by the pressure detecting device, the temperature measuring device and the pressure measuring device. According to the vacuum system, the oil temperature, the front stage pressure and the pressure of the vacuum chamber are monitored in real time through the control system, and are compared with the set critical pressure and the anti-explosion pressure, and corresponding measures are taken if a danger is detected, so that the oil diffusion pump is prevented against explosion.

The invention discloses a diffusion pump, and particularly relates to a large-caliber high vacuum oil diffusion pump, which is suitable for a vacuum furnace and a vacuum coating machine. The large-caliber high vacuum oil diffusion pump comprises a pump body, and a pump core component arranged in the pump body, wherein a heater is arranged at the bottom of the pump body; an oil stop device is arranged in an exhaust port of the pump body; the pump body adopts a convex cavity structure; the pump core component is vertically mounted in a center oil tank in the pump body, and is formed into an integral structure by a first-stage guide pipe, a second-stage guide pipe and a third-stage guide pipe arranged in sequence from inside to outside; umbrella cap-shaped diffusion nozzles are respectively arranged at the upper parts of all the guide pipes; a spraying nozzle is vertically welded at the bottom of the third-stage guide pipe; the first-stage guide pipe is higher than the second-stage guide pipe; and the second-stage guide pipe is higher than the third-stage guide pipe. The large-caliber high vacuum oil diffusion pump has the characteristics of large caliber, high limit vacuum degree, high pumping rate, low oil return rate and low electricity consumption.

An electrochemical hydrogen pump includes: a cell including a proton conductive electrolyte membrane having a first main surface and a second main surface, a cathode disposed on the first main surface of the proton conductive electrolyte membrane, and an anode disposed on the second main surface of the proton conductive electrolyte membrane; a voltage applier that applies a voltage between the anode and the cathode; a cooler that cools the cell; and a controller that controls the cooler to increase an amount of cooling per unit time of the cell when a pressure of a cathode gas flow path on the cathode increases.

The invention relates to the field of vacuum pumps, in particular to a rotation type vacuum diffusion pump. The diffusion pump achieves traction and compression of air with rotation type movement by adopting multiple levels of high-velocity vapor steam with each level containing multiple pieces of slice-shaped high-velocity vapor steam, and therefore the vacuum degree is obtained. In addition, an evaporation oil cavity is in a cone shape, by designing the sizes of different oil cavity branch layers, a high jetting velocity of oil vapor is obtained at a jetting opening, and meanwhile light fractions of the outer layer gains a higher flow velocity than heavy fractions of the inner layer. The rotation velocities of nozzles of different levels form a velocity gradient from top to bottom, and therefore gas is continuously extruded to the bottom layers of a pump body and discharged by a mechanical pump. Transmission between the nozzles is achieved through planetary gear mechanisms and the nozzles are driven by a motor. The rotation velocities of the nozzles form the velocity gradient from top to bottom, the fusiform pump body is adopted, the length of a jet stream is increased, and therefore the ultimate vacuum is better.