2256 results about "L-shell" patented technology

The invention relates to a continuous oil pipe hanger for a velocity tubular column. The continuous oil pipe hanger comprises a continuous oil pipe, an I-shaped flange, an upper slip assembly, a lower slip assembly, an upper shell, a middle shell and a lower shell, wherein vertically penetrating central holes are formed in the upper shell, the middle shell and the lower shell; the I-shaped flange is fixedly arranged at the top of the upper shell; the continuous oil pipe passes through the I-shaped flange and the central holes of the upper shell, the middle shell and the lower shell in turn; the upper slip assembly is clamped on an inner wall of the central hole of the upper shell; the lower slip assembly is located in the central hole of the middle shell; a connecting pipe sealing set is fixedly arranged on an inner wall of the central hole of the middle shell and the lower side of a hanging supporting sleeve; at least one pair of driving pistons is arranged on the inner walls of the central holes of the middle shell and the lower shell and under the connecting pipe sealing set; an upper oil port and a lower oil port respectively communicated with the driving pistons are arranged on the side walls of the middle shell and the lower shell. The continuous oil pipe hanger has the beneficial effect of capability of hanging the continuous oil pipe.

The invention discloses an electronic cigarette which comprises a cigarette-like shell with a hollow cavity, an electrical source, a cigarette pellet and cigarette rod fittings. The electrical source, a pneumatic switch, a magnetostrictive vibrator and an electromagnetic induction heater are arranged in sequence inside the shell from the front end to the back end; wherein, a high frequency generator is respectively connected with the magnetostrictive vibrator, the electromagnetic induction heater and the pneumatic switch through leads. A light-emitting diode is arranged at the front end of the shell and is respectively connected with the pneumatic switch and the electric source through leads. The back end of the shell is connected with the cigarette pellet in which a tobacco solution chamber is arranged.

This invention provides a method to make core-shell structured dielectric particles which consist of a conductive core and at least one layer of insulating dielectric shell for the application of multilayer ceramic capacitors (MLCC). The use of said core-shell instead of conventionally solid dielectric particles as the capacitor's active layers simplifies the MLCC manufacturing processes and effectively improves the MLCC properties. In particular, the use of core-shell particles with a thin shell of high permittivity dielectric material improves the capacitance volumetric efficiency, and the use of core-shell particles with a thick shell of dielectric will improve capacitor device's energy storage capacity as the results of improved electrical and mechanical strength.

A spiral LED packaging filament comprises a substrate, a plurality of LED chips disposed on the top surface of the substrate, a medium layer sealing the plurality of LED chips and the top surfaces of the substrate into a sealed LED package; two electrode wires being electric connected to the plurality of LED chips, wherein the sealed LED package has a spiral shape. A light bulb with the spiral LED packaging filament comprises a bulb shell; a stem having a supporting pole, an electrical wire and a stem exhaust pipe, at least one spiral LED packaging filament is fixed on the stem; the electrode wire is connected to the electrical connector via the drive; and the bulb shell and the stem are respectively sealed.

A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li⁺ intercalation medium. Highly reversible Li⁺ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.

The present invention provides a vertical falling film shell and tube heat exchanger, where the falling film is formed on the exterior surface of the tubes. A distribution plate is provided below an upper tubesheet, and a sparger plate having sparger holes is provided between the upper tubesheet and the distribution plate. A plurality of vertical, parallel tubes pass through the distribution and sparger plates and are sealingly engaged with the upper tubesheet and the sparger plate. The distribution plate has oversized holes through which the tubes pass, an annular space being defined around each tube where the tube passes through the distribution plate. The first fluid passes one time through the tubes, and the second fluid is fed to the shell side as two streams, a liquid stream and a vapor stream. The liquid stream is introduced to the shell between the upper tubesheet and the sparger plate and drains downwardly onto the second distribution plate through the sparger holes. The liquid stream forms a falling film on the tubes as the liquid passes through the annular space around each tube. The vapor stream is introduced to the shell below the distribution plate and is condensed/absorbed into the falling film.

The present invention relates to a tube-side sequentially pulsable-flow, shell-and-tube heat exchanger apparatus and a chemical processing system comprising and methods of heat exchange employing the same.

A stored value card device has a housing comprising an upper shell and a lower shell. The card device is dimensioned similar to typical credit cards and contains a circuitry for producing an audio/visual message in an inner space formed between the upper and lower shells, which are shaped like opposing trays. The two shells join together through a simple complementary engagement. A card component slides out from the bottom of the lower shell, which has two-tiered structure for mounting the card component. An electronic message device is retained in the cubic space of the housing which includes a power supply, a processing device, an audio and/or video player, and a switch triggered by a push button on the upper shell, thereby the stored value card device provides two independent operations as an electronic message player and as a convertible card in a thin profile at the same time.

The invention relates to a piezoelectric self-powersupply low power consumption remote controller, belonging to the technical field of energy resources and electronics. The metal substrate of a bending piezoelectric vibrator is fixed on a lower shell by a pressing block; the piezoelectric vibrator is connected with a power circuit on a printing circuit board by a lead; the printing circuit board is fixed on an upper shell; the upper shell is provided with an upper locating block; the inside of the lower shell is fixedly connected with a lower locating block; the two shaft ends of a rotary force-applying mechanism are connected with the inclined slideway of a shell in a sliding way; a button is connected with the rotary force-applying mechanism in a pressing way; an offsetting spring is connected with a top block; the top block is contacted and connected with the rotary force-applying mechanism; the shaft of the rotary force-applying mechanism is fixedly connected with two groups of locating gears and a group of tines; the power circuit is connected with the circuit of the remote controller. The piezoelectric self-powersupply low power consumption remote controller has the advantage of utilizing a piezoelectric generating device to supply power for the remote controller, thus being capable of avoiding the problems of inconvenient use brought by replacing batteries and incapable use brought by not replacing the batteries in time when the power is out of use; and being capable of avoiding the secondary cost in use and the environment pollution caused by a plurality of waste batteries.

The invention discloses a precision-forging plastic molding technology of a bell shell of a ball-cage type universal joint, comprising steps of warm-forging plastic molding and cold-forging plastic molding. The warm-forging plastic molding technology comprises the following steps: a. blanking; b. manufacturing a blank; c. coating; d. heating; e. directly extruding; f. upsetting; g. extruding reversely; h. normalizing, shaping, sand blasting, parkerising, and treating the surface by a manner of saponification; and adopting the forging plastic molding technology of combining the warm-forging plastic molding technology with the cold-forging plastic molding technology, firstly upsetting to obtain the pre-molding blanking material, secondly, extruding reversely in the chamber of the molding mold to form a ball channel and finally forming the inner spherical surface by using the cold-forging plastic molding technology. The product quality is steady, the production efficiency is improved, the production period is short, the method for adopting the machine tool after the hot-forging is replaced, the workload of the machine tool process is reduced, the precision requirements are met, the manufacturing cost and the period are reduced, and the development trend of the manufacturing field in the world is met.

The present invention is directed to catalyst particles comprising a layered core-shell-shell structure and to a method of their manufacture. The catalyst particles have the general formula BM/IL/PM in which BM is a base metal core (selected from Co, Ni or Cu), PM is a precious metal outer shell (selected from Pt, Ir or Pd) and IL is an intermediate layer comprising a base metal/precious metal alloy with a concentration gradient of base metal to the outside PM layer. The particles of the present invention comprise a core-shell-shell structure and a substantially continuous precious metal shell layer. They find use in various catalytic applications, for example in gas-phase catalysis, in electrocatalysts for fuel cells, in catalytic converters for automobiles and in electronic or medical applications.

The invention relates to a method for forming a large complex thin-wall shell with circumferential inner ribs. The large complex thin-wall shell with the circumferential inner ribs is formed by adopting a composite spinning method combining strong spinning and general spinning. The method comprises the steps of: in forming, firstly determining the radius of an initial position to be ribbed on a plate blank, the height of the head of a filmed spin-forming part and the axial distance between a final ribbed position of a spinning piece and the top end of the spinning piece, and then forming by composite spinning in multiple rounds. In the method, under the conditions that only one core die and one set of rotary wheels are adopted, a prefabricated blank is not needed, intermediate annealing phase does not need to be adopted and no subsequent machining is needed, due to adoption of a reasonable composite spinning process, the flat plate blank is spun to form the large complex thin-wall shell with the circumferential inner ribs, so that the forming period is shortened, the cost is reduced, and large amount of manpower resources, material resources and financial resources are saved. The invention provides scientific basis for the spin-forming process scheme of the large complex thin-wall shell with the circumferential inner ribs and the determination of tracks of the rotary wheels, which is beneficial to promotion of further development of the advanced theory and technology of spinning.

The invention discloses a magnetorheological fluid recycling device and a control method and component manufacturing method thereof, and belongs to the technical field of mechanical manufacturing. The magnetorheological fluid recycling device comprises an inlet stop valve, an upper shell, a lower shell, an electrostatic filter plate, upper adsorption pipes, lower adsorption pipes, rib pipes, coils, heaters, stirrers, a pump, a return pipe and an outlet stop valve. The upper shell is connected with the lower shell through bolts, seal rings are arranged on the attached positions of the upper shell and the lower shell, and the inlet stop valve is arranged on the upper shell. Meanwhile, the invention further provides the control method and key component manufacturing method of the magnetorheological fluid recycling device. According to the magnetorheological fluid recycling device and the control method and component manufacturing method thereof, primary treatment on mixed liquid is completed through filtration and adsorption of the electrostatic filter plate, and then treatment on the mixed liquid is further completed through adsorption of the upper adsorption pipes, the lower adsorption pipes and the rib pipes; the heaters, the stirrers and a circulatory system are additionally arranged, and the purpose of thoroughly separating magnetic substances from solvent is achieved.

The invention discloses a novel ultra wide angle lens. The novel ultra wide angle lens comprises a lens shell. Pieces of optical glass sequentially arranged from the object space to the image space inside the lens shell include a first lens, a second lens, a third lens, a fourth lens, a diaphragm component, a fifth lens, a sixth lens, a seventh lens and an eighth lens, wherein the first lens is a strawhat-type lens with the negative focal power, the second lens is a biconcave lens or a plane concave lens with the negative focal power, the third lens is a falcate lens or a biconvex lens with the positive focal power, the fourth lens is a falcate lens or a biconvex lens with the positive focal power, the fifth lens is a falcate lens or a biconvex lens with the positive focal power, the sixth lens is a biconvex lens with the positive focal power, the seventh lens is a falcate lens with the negative focal power, the eighth lens is a biconvex lens with the positive focal power, and the eighth lens is connected with a color filter. The visible light wave band and the near-infrared wave band guided in by the lens are focused in the same focal plane, so that the novel ultra wide angle lens can conduct clear imaging in the day and night modes.

Disclosed in the invention is a vibration motor comprising a housing formed by an upper shell 1 and a lower shell 2. A coil 3, spring plates, magnets, and a mass block are accommodated into a cavity encircled by the housing. The mass block 6 contains accommodation grooves 61 with the shapes matching the external profiles of the magnets 5; and the magnets 5 are accommodated into the accommodation grooves 61 and are used for providing magnetic fields for the vibration motor. The coil 3 that is fixed on the upper shell 1 and is connected with an external power supply is used for making induction with the magnets 5 during electrification to generate a driving force. The spring plates 4 are respectively arranged at diagonal positions of the lower shell 2. The mass block 6 that is connected to the lower shell 2 by the spring plates and is suspended inside the housing makes vibration horizontally along the diagonal direction of the housing under the effect of the driving force. According to the invention, the diagonal vibration of the motor can be realized and thus a multi-azimuth vibration effect with vibration at the X direction and the Y direction can be realized, so that the good user experience can be provided. Moreover, on the basis of the principle that the diagonal line is the longest, displacement needed by vibration can be met and thus space is saved.

A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li⁺ intercalation medium. Highly reversible Li⁺ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.

Provided is an ice maker. The ice maker includes a tray member comprising an upper tray having an upper shell and a lower tray having a lower shell. The ice maker also includes a driving unit disposed on a side of the tray member and configured to linearly move, in a vertical direction, at least one of the upper tray and the lower tray to change between an attached orientation in which the upper shell is attached to the lower shell to define a spherical shell and a separated orientation in which the upper shell is separated from the lower shell. The ice maker further includes an ejecting unit that is disposed on a side of the tray member and that is configured to facilitate separation of an ice piece made in the spherical shell from at least one of the upper tray and the lower tray.

The invention discloses a machining method for achieving metal texture of a plastic shell with grain appearance. The method includes the following steps that pretreatment paint is sprayed to the plastic shell with grains; UV primer spraying is conducted on the plastic shell where the pretreatment paint is sprayed in a thin coating mode, and adhesion of a coating film is improved; supplementary coating is conducted on portions with low structural design strength and/or injection molding fusion line positions; non-conductive vacuum evaporation film coating is conducted on the plastic shell where UV primer is sprayed, and a metal-imitating effect is achieved; UV intermediate paint spraying is conducted on the plastic shell subjected to film coating, and UV intermediate paint is colored to meet the color requirement; UV surface paint spraying is conducted on the plastic shell sprayed with the UV intermediate paint so as to adjust the gloss of the plastic shell. The primer thin coating technology and the electroplating technology are combined, on the premise that the performance and the texture effect of the shell are guaranteed, the metal texture effect is achieved on a plastic substrate, and the requirements of customers for economical efficiency and appearance metal texture are met.

The multiple shell spiral baffle shell-and-tube heat exchanger includes one shell, one central tube in the center oft shell, two tube plates on ends of the shell and with separate end covers, one inlet pipe and one outlet pipe beside the tube, one heat exchange tube bundle, one inlet pipe and one outlet pipe beside the shell, one external spiral baffle plate and one internal spiral baffle plate, and one internal casing between the external spiral baffle plate and the internal spiral baffle plate. The shell, the external spiral baffle plate and the internal casing enclose one external spiral shell pass; and the internal casing, the internal spiral baffle plate and the central tube enclose one internal spiral shell pass, so that one two-shell pass spiral baffle plate shell-and-tube heat exchanger is formed. Adopting two or more internal casings can form multiple spiral shell pass. The present invention has raised heat exchange efficiency, compact heat exchanger structure, less vibration, high safety, less scaling and long service life.

The invention relates to a novel process for preparing magnetic active carbon with a C-Fe shell-core structure by utilizing waste biomasses. The process overcomes the defects of complicated preparation process, high cost and high price of the traditional shell-core active carbon, and by utilizing the form change of the waste biomasses in the presence of heating, the processes of carbonization, activation, magnetism giving and protection of the biomasses are achieved in one step. The key of the process lies in selecting an appropriate activating agent, controlling an appropriate carbonizing and heating system and carbonizing atmosphere and ensuring that the active carbon completely coats iron in the production process. The obtained active carbon has high specific surface area, pore volume and magnetic intensity and the C-Fe shell-core structure. Proved by experiments, after the active carbon is soaked in a 2M salpeter solution for 2h, the magnetism cannot be lost, and a product can be used in a strongly acidic solution.