227 results about "Decompression chamber" patented technology

An ejector including a nozzle communicating with a fluid inlet, a diffuser communicating with a fluid outlet, and a decompression chamber placed between the nozzle and he diffuser. The ejector is arranged to generate a negative pressure in the decompression chamber by a fluid ejected from the nozzle. A target negative pressure P in the decompression chamber is set in a range of “40 kPa<P≦50 kPa”. A SD/Sd ratio between a sectional area SD of an inlet of the diffuser and a sectional area Sd of an outlet of the nozzle is determined to meet a relation:

“1.20≦SD/Sd≦4.08−0.047P”.

A degasifier is provided in which the deterioration in sealing property (deterioration in airtightness) is prevented while sealing members to be placed between a container and covers that compose a decompression chamber can be omitted. A degasifier includes a decompression chamber provided with a container and covers, and a gas-permeable tube. The container is a tubular body extending along the central axis. The covers seal the openings of the ends of the tubular body. The gas-permeable tube is contained in the decompression chamber in such a manner that a liquid to be degassed that has entered from the outside of the decompression chamber flows therethrough and the liquid to be degassed that has flowed therethrough flows out of the decompression chamber. The inner circumference surfaces in the vicinities of the openings of the container each are provided with a first slope that is formed to be tilted at a predetermined angle θ with respect to the central axis and to extend away from the central axis toward the opening side of the container. A portion of each of the covers that is in contact with the container is provided with a second slope that is formed to be tilted at the angle θ with respect to the central axis and to extend to approach the central axis toward the inner side of the decompression chamber, with the openings being sealed. The openings are sealed with the container and the covers being joined to each other in the state where the first slopes and the second slopes are in contact with each other, respectively.

The electronic ceramic continual sputter plating device comprises: a vacuum extraction device; and a body with five near vacuum chambers mutual connected insulating valves as the pre-pump chamber, front transition chamber, sputtering chamber with metal sputtering targets on mutual disposition, back transition chamber and the decompression chamber. Wherein, arranging a fitting friction piece transfer device and a piece frame can be convened to five chambers and outside by the transfer device; arranging a feeding table, an out-feeding table and a back mechanism all and said transfer device connected to a continual loop transfer line. This invention has large yield with low cost, strong bonding force and resistance to high temperature and corrosion.

A method of lubricating and cooling a hydrodynamic plain bearing for a rotating element comprises the steps of supplying fresh, cold lubricant under pressure from a pressure chamber arranged upstream of a fixed gliding plane to a lubricating gap between the fixed gliding plane and the rotating element, the supply of fresh, cold lubricant being so controlled that an effective lubricating wedge is formed between the rotating element and the fixed gliding plane. The pressure chamber is connected to a decompression chamber predominantly filled with gas and arranged upstream of the pressure chamber by a mixing conduit, used, hot lubricant adhering to the rotating element is moved to the decompression chamber, and a portion of the used, hot lubricant is removed from the decompression chamber while the remaining portion of the used, hot lubricant flows from the decompression chamber into the mixing conduit and is mixed with fresh, cold lubricant flowing countercurrently in the mixing conduit whence the mixture is pressed into the decompression chamber.

Polymer processing systems are provided including an extrusion assembly, a specially configured decompression chamber assembly, and a die assembly. Such systems are effective to provide shaped polymer products having reduced extrusion markings. Methods of using such systems are also provided.

The invention provides a damping type flow control forming process for an aluminium-alloy rib-plate forging. The process comprises two forming steps of pre-forging and finish-forging, a forming load is reduced through a decompression chamber during pre-forging, and the damping force is applied to a web portion of the forging during finish-forging, so that the web portion is prevented from plastic deformation, and deformation only occurs in rib portions. The invention also provides a die for implementing the method. A damper is arranged inside a concave die to apply the acting force to the web portion of the forging. According to the process and the die, metal flow is controlled through the damping force, so that metal distribution is adjusted reasonably during forming, and the forming load is reduced.

A casting drum is rotated around a shaft. A peripheral surface of the casting drum moves in an X direction. A dope is discharged through a casting die onto the peripheral surface such that a casting bead is formed so as to extend from a discharge port of the casting die to the peripheral surface. A decompression chamber decompresses an upstream side from the casting bead in a moving direction of the casting drum. The decompression chamber is provided with a sensor unit for detecting a width of the casting bead in a Y direction as width data. A control section shifts outer side seal plates in the Y direction based on the width data detected by the sensor unit such that the outer side seal plates are located in an upstream side from side ends of the casting bead in the X direction. Upon formation of a casting bead having a new width, the control section shifts the outer side seal plates in the Y direction based on the width data of the casting bead having the new width such that the outer side seal plates are located in the upstream side from the side ends of the casting bead having the new width in the X direction.

The invention belongs to the technical field of cellulosic ethanol production process steam explosion pretreatment, and discloses a steam explosion straw material collection and energy utilization technology, comprising the concrete steps of: (1) feeding the crushed straw into a blasting vessel by mechanical means; (2) feeding high pressure steam with a pressure of 1.2-4.0 MPa into the blasting vessel; (3) keeping pressure for the blasting vessel for 10-120 min; (4) opening the blasting vessel to eject the material to achieve separation of the material and the steam; (5) feeding the steam from the step (4) into a decompression chamber, and discharging organic molecule containing steam from the top of the decompression chamber and into the a condenser; (6) feeding a liquid formed by the steam of the step (5) through the condenser to the wastewater treatment process, and feeding the exhaust gas into an absorption tower for subsequent exhaust absorption. The technology enables steam explosion byproducts to be scientifically collected and used, makes fully use of exhaust heat, and is easy to promote and use.

A system for extracting including a cooled condenser apparatus in contact with the volume of pressurized air being dehumidified, the condensed water being transferred into collection areas by means of capillary attraction; an evaporation chamber in thermal contact with the condenser apparatus having an inlet connected to the collection areas by means of a first valve device and an outlet connected by means of a second valve device to a space wherein the pressure is lower than that of the volume of pressurized air; and a control device for controlling the valve devices in order to carry out a control cycle with a first phase for placing the evaporation chamber under negative pressure in relation to the volume of pressurized air, and a second phase for suctioning the condensed water in the collection areas towards the decompression chamber, until the pressure in the decompression chamber reaches a predefined threshold.

The invention discloses a method for manufacturing a non-casting balancing weight, which comprises: firstly welding a plurality of metal plates into a shell, reserving a feeding port on the shell, filling core materials such as waste metal, gravel and waste residues into the shell, putting the balancing weight filled with the core materials into a decompression chamber for drying, pumping wet air in the decompression chamber by an extraction pump and simultaneously blowing dry air into the decompression chamber in the drying process, and sealing the feeding port after drying of the balancing weight to manufacture the balancing weight; or firstly sealing the feeding port before executing the drying step, and in the process of executing the drying step, utilizing the shell of the balancing weight to replace the decompression chamber, configuring an extract opening and an air inlet port on the shell, respectively connecting the extract opening and the air inlet port to the extraction pump and a dry air source, pumping the wet air in the shell of the balancing weight by the extraction pump while filling the dry air into the shell, and using less energy consumption to achieve better drying effect.

A dope is discharged from a casting die toward a belt to form a film-like material above the belt. Thereby a range near the film-like materials is decompressed by first and second decompression chambers. A pipe connecting each decompression chamber to a pressure controller has an inner diameter from 70 mm to 700 mm, and a length of the pipe is at most 30 m. Further the pipe is provided with a first expansion silencer of expansion silencer and a second expansion silencer of resonance silencer, and a sectional dimension ratio of the first expansion silencer to the pipe is from 5 to 500. Thus a pressure fluctuation in the second decompression chamber and the pipe is reduced and the film-like material becomes uniform. Thus the obtained film has no thickness unevenness, and used for producing a polarizing filter excellent in optical properties and a liquid crystal display.

The invention discloses a cleaning driver for a self-cleaning mechanical filter, comprising a piston mandril and a piston which are always linked with a sewage absorber along the axial direction, and a backbone pressure chamber, a triggering chamber, a driving chamber and a decompression chamber which are arranged outside a piston chamber in parallel from the interior to the exterior, wherein, the triggering chamber and the driving chamber are sealed and separated by a movable rigid wall liquid, and when the rigid wall receives triggering signals in the triggering chamber, the rigid wall moves towards the driving chamber, thus causing the driving chamber to communicate with the decompression chamber for decompression and causing the piston to drive the sewage absorber to make the axial movement. As the rigid walls adopted by the cleaning driver can bear great pressure, the filter can work under extremely high water pressure of raw water.