85results about How to "Lower jet" patented technology

A molded structure comprises a decorative film or substrate, and an adjacent injection molded polymeric base comprising a substantially transparent cycloaliphatic polyester resin which may have an opening for exposing the transparent polymeric base resin to the exterior of the molded article, and a process for making the molded structure is described.

A light weight pre-stressed antiballistic article including a monolith ceramic plate/tile bonded to a thin lightweight thermal expansion material with an adhesive, characterized, in that the thermal expansion material has a thermal expansion coefficient at least 50% higher than the ceramic plate/tile, and the thermal expansion material is bonded to either the front face, back face or both faces of the ceramic plate/tile at a bonding temperature of between 50° C. and 250° C. with adhesive and subsequently cooled, whereby upon cooling, the bonded thermal expansion material contracts to a greater extent than the ceramic plate/tile, exerting compression stress on the ceramic plate/tile.

The invention relates to a method for controlling a fuel injection system (10) of an internal combustion engine, the fuel injection system (10) comprising a high-pressure pump (16) associated with a quantity controlling valve (15) having a solenoid valve (22) electromagnetically actuatable by a coil (21) for supplying fuel, the quantity control valve (15) controlling the quantity of fuel supplied by the high-pressure pump (16) and the coil (21) of the solenoid valve (22) having a first current value applied thereto, in order to close the same for supplying fuel to the high-pressure pump (16), the first current value being reduced to a second current value when the solenoid valve is closing (22), such that the radiation of audible sound arising from the closing of the solenoid valve (22) is at least partially reduced.

An apparatus for detecting constituents in a sample includes a casing and an ionization chamber defined by the casing. The apparatus also includes an ion collector positioned downstream of the ionization chamber. The apparatus further includes a spectral analysis device coupled to the ion collector. The spectral analysis device is configured to generate a detection spectrum representative of ions collected at the ion collector. The detection spectrum includes an analyte peak portion and a peak tailing portion. The apparatus also includes a control system that is configured to generate a first pulse having a first polarity to initiate a discharge of stored ions from the ionization chamber. The control system is also configured to generate a second pulse substantially immediately after the first pulse. The second pulse has a second polarity opposite the first polarity and is configured to reduce the peak tailing portion.

The invention relates to a preparation method of a MCrAlY high temperature protection coating. The preparation method sequentially comprises the following steps that before plating, a base material is subject to surface scale removal and washing treatment; after vacuumizing is carried out to 5.0*10<-3> Pa, the in-furnace pressure intensity is 1.0 Pa to 3.0 Pa, the Ar gas flow is 200 sccm to 600 sccm, the back bias voltage is 500 V to 1000 V, the time is 30 min to 60 min, and glow discharge ion washing is carried out; and deposition of the MCrAlY coating is carried out, wherein the in-furnace pressure intensity is 0.8 Pa to 2.0 Pa, the Ar gas flow is 300 sccm to 500 sccm, the arc target current is 60 A to 120 A, according electromagnetic parameters, the voltage is 8 V to 50 V, the frequency is 1.0 Hz to 33.3 Hz, the permanent magnet parameter is 5000 Gs to 15000Gs, and the back bias voltage is 50 V to 200 V. According to the method, the protection coating which is good in film/base bonding force, compact in film layer, small in surface roughness, resistant to high temperature oxidation and excellent in heat corrosion resistance can be prepared on the high temperature alloy surface. The method can solve the problem that traditional arc ion plating target using rate is low, the aggregation state arc spot drop large particles are achieved, and the method is suitable for industrial production.

The invention discloses a cathode vacuum arc plasma magnetic filter device which comprises an anode barrel (2). A first high-intensity pulse coil (201) and a suppression coil (202) are sequentially arranged on the anode barrel (2). According to the cathode vacuum arc plasma magnetic filter device, the arc spot motion speed is high, and large particle spraying caused by local temperature increase can be obviously reduced; the deposition rate is 1-3 times the deposition speed under the existing technical conditions; Gaussian distribution of the traditional magnetic filter technology becomes intouniform distribution within the beam spot diameter range, the thickness difference is smaller than 10%, and uniformity of a film layer can be greatly improved; and under magnetic field cooperation, when the size of a source target is 100 mm, beam spots of plasma can achieve film coating of workpieces with the sizes being 300 mm or above.

A vehicle side air curtain has an inflator, a main inflatable chamber, and an integral separate, self-contained controlled pressure chamber in limited fluid communication with the main inflatable chamber of the side air curtain and disposed for impact by the head and upper thoracic region of a vehicle occupant. The main inflatable chamber is inflated to an initial pressure within an initial impact time period immediately following actuation of the inflator and a second lower stabilized pressure thereafter to extend the duration of the pressurization of the main inflatable chamber of the side air curtain beyond the initial impact time period. The controlled pressure chamber of the side air curtain is inflated to an initial pressure substantially lower than the first pressure of the main inflatable chamber and favorable to side impact occupant protection immediately following actuation of the inflator pressure.

Disclosed is a recording liquid essentially composed of water, a coloring material, an organic solvent and a surfactant. The surfactant is composed of a specified ethylene oxide/propylene oxide/ethylene oxide block copolymer, a specified ethylene oxide/butylene oxide/ethylene oxide block copolymer or a specified propylene oxide/ethylene oxide/propylene oxide block copolymer. The recording liquid is superior in ejection stability and high in optical density even on multi-color recording letters/characters or images on an ordinary paper sheet so that it allows for high quality recording free of boundary bleeding or all-over color unevennesses otherwise caused by color mixing.

The invention provides antistatic resin sand which is characterized in that the raw materials comprise the following components in part by weight: 200 to 270 parts of urea, 370 to 530 parts of formaldehyde, 15 to 25 parts of urotropine, 110 to 150 parts of filler and 18 to 25 parts of other auxiliary materials; and the antistatic resin sand also comprises an antistatic agent of which the weight is 0.2 to 0.6 percent of the total weight of the components. The invention also provides a production method of the antistatic resin sand, which comprises the following steps of synthesizing urea resin, carrying out kneading process, carrying out drying process, carrying out grinding process, carrying out ball milling and sieving, carrying out pelletizing process, carrying out size stabilization process, mixing, packaging and the like. According to the antistatic resin sand and the preparation method thereof, which are provided by the invention, the antistatic resin sand has antistatic capacity; various requirements on the surface treatment on an airframe are met; and particularly, in the using process of the antistatic resin sand, antistatic liquid does not need to be sprayed to the resin sand.

Provided is a gas turbine including: a first compressor which compresses air; a mixer which adds the compressed air from the first compressor to fuel and generates a fuel mixture; a combustor which combusts the generated fuel mixture from the mixer; a plurality of flow meters which adjusts an amount of the air or the fuel injected into the mixer; and a control unit which maintains the Wobbe Index of the fuel mixture within a predetermined Wobbe Index rang.

A pneumatically powered nail gun having a duster mechanism which is also pneumatically powered with the same pneumatic source. The nail gun includes a main body having a lower end and defines therein a compressed air chamber. A cylinder piston arrangement is disposed in the main body, and the compressed air is selectively applied to the piston for moving a driver blade connected to the piston to drive a nail. The duster mechanism includes a duster nozzle provided at the main body for ejecting a compressed air therethrough. A pressure release valve is disposed at an air passage extending between the duster nozzle and the compressed air chamber for selectively shutting off a fluid communication therebetween. A pressure regulating section is disposed at the air passage for providing a compressed air passing through the duster nozzle at a pressure lower than that in the compressed air chamber.

The invention relates to a fabricated combined soil nailing wall with a recoverable flexible surface layer and a construction method. The fabricated combined soil nailing wall is characterized in thatinclined recoverable anchor rods and soil nails which are constructed on a pit wall at intervals are included, a hydrophobic layer, a waterproof geomembrane, a geogrid and a concrete fireproof layerare sequentially constructed on the pit wall, and the top of the waterproof geomembrane and the top of the geogrid are fixed to the top face of a foundation pit; transverse waist beams and longitudinal waist beams are arranged on the surface of the concrete fireproof layer, the recoverable anchor rods are fixed to the transverse waist beams, and the soil nails are arranged in the split areas of the longitudinal waist beams and the transverse waist beams. The construction method comprises the steps of upper-layer pit wall anchor rod and soil nail driving, upper-layer pit wall hydrophobic layerconstruction, upper-layer pit wall flexible surface layer construction, upper-layer anchor rod and soil nail fixing, lower-layer soil nail wall construction according to an upper-layer soil nail wallconstruction method and soil nail wall drainage construction. The structure has the advantages of being convenient to demount and mount, high in construction efficiency and capable of meeting the retaining and protection requirements of foundation pits of different depths.

The invention discloses an on-demand micro liquid drop generation method based on pneumatic and electrohydrodynamic hybrid driving. The device for realizing the method is supplied by a high-pressure gas source, a pressure regulating valve is used for controlling the air pressure at the front end of a high-speed electromagnetic valve, and a single-chip microcomputer controls the opening time of thehigh-speed electromagnetic valve. After the high-pressure gas enters a liquid storage cavity, helmholtz oscillation is generated, and the high-pressure gas is stable after being attenuated by severalperiods. An industrial camera and an LED lamp are used for monitoring the production process of the micro liquid drops and adjusting the system in an auxiliary mode. The high-speed electromagnetic valve and the pressure regulating valve are reasonably adjusted according to the air pressure waveform detected by an air pressure sensor. The air pressure waveform is controlled by adjusting the high-speed electromagnetic valve and the pressure regulating valve, the volume and shape of the micro liquids extruded from a nozzle can be adjusted, so that the size of the micro liquid drops is regulated.Compared with a high-voltage pulse power supply micro liquid drop generating device, the cost is greatly reduced.

The invention relates to a construction method of a recyclable soil nail split mounting type flexible surface layer wall. The construction method is characterized in that the construction method comprises the steps that a soil nail, a flexible surface layer and a transverse contact body are manufactured, a foundation pit slope surface is dressed and grooved, the transverse contact body is placed,a special tool is used for screwing the soil nail into a soil layer, slope body drainage construction is conducted, an assembly type flexible surface layer is mounted, the end part of the soil nail isfixed, and materials are recycled and material turnover is conducted. According to the construction method of the recyclable soil nail split mounting type flexible surface layer wall, a split mounting type flexible surface layer is mounted on the end part of the soil nail to form a reliable transmission connection structure, after foundation pit construction is finished, the assembled flexible composite material surface layer, the soil nail, transverse contact angle steel and the like are removed to use circularly in the follow-up project, hole formation and grouting are conducted, drilling hole formation, mud protection wall, grouting and other construction steps are reduced, the construction efficiency is improved, mud contamination is avoided, the quality is reliable, and the construction quality is easy to ensure and control.

The invention relates to a refrigeration device with liquid stored in different layers in a space cold shielding system, which comprises capillary materials, a capillary material bracket, an inlet pipe of secondary diffusion, a discharging pipe of secondary diffusion and a diffuser, wherein, the capillary material bracket is arranged between an outer layer of cold shielding and an inner layer of cold shielding and provided with the capillary materials divided by circular shapes; the capillary material bracket at an upper part of each circular layer is provided with a vent port. The inlet pipe of secondary diffusion is arranged between the capillary material bracket and the inner layer of cold shielding; an outlet of the inlet pipe of secondary diffusion is connected with the diffuser, an outlet of which is connected with the discharging pipe of secondary diffusion; a clearance is kept between the inlet pipe of secondary diffusion and the inner layer of code shielding. The refrigeration device solves the difficult problems of valid storage of refrigerant during the space dynamic refrigeration of variable pressure, temperature and flow, improves the efficiency of space heat transmission, increases the efficiency of space refrigeration with phase change, realizes the relative stability of space refrigeration, and realizes the effective control of temperature on the surface of the space cold shielding system.