154results about How to "Avoid pumping" patented technology

The invention relates to a food processing machine with an electric sucking pump and a method for vacuumizing to produce foodstuff liquid. The food processing machine comprises a crushing cutter device, a machine head or a machine base, a motor, a barrel and a control circuit board, wherein the barrel is provided with a sealing device, has or does not have a heating device. An electric sucking pump is arranged on the machine head, the machine base, the sealing device, the barrel or a barrel handle of the food processing machine, the sucking port of the electric sucking pump is positioned in the barrel and above the foodstuff liquid level, the exhaust port of the electric sucking pump is communicated with the outer part of the barrel; and the electric power source of the electric sucking pump is an independent motor, an electromagnetic vibration device, a piezoelectric ceramic vibration device or the crushing cutter device of the food processing machine. A sealing mode is adopted to seal the barrel of the food processing machine, the electric sucking pump is used to pump air out of the barrel, then crushing and heating are carried out to crush and heat the foodstuff in the barrel of the food processing machine under the vacuum condition, the oxidation of the foodstuff liquid is greatly reduced and avoided for the crushing and heating processes, so the nutritive loss is reduced, and the good taste and appearance color are kept.

A remote control system for lifting netted case is composed of floating netted casing for culturing purpose, the main flating tube with water valve and air valve, air pump, and lifting control unit consisting of casing, solar cell board, electric accumulator, motor, air pump, electric valve and program control box. Its control method features that the floating or sinking command is transmitted from mobile telephone to mobile communication module of said system for executing lifting or sinking operation.

Air is removed from a bottle by placing the apparatus over the bottle in a manner similar to that of a cork. A switch is activated by placement of the apparatus over the bottle and causes a pump to evacuate air from an interior of the bottle. A pressure sensor senses reduced pressure and shuts off the pump when a sufficiently low pressure is reached. An indicator also visually indicates that a vacuum state exists within the bottle. A temperature probe is provided, coupled to a display for visual readout of temperature of liquid within the bottle. A tilt sensor is provided to shut off the pump if the apparatus is tilted excessively. A button is provided which can be depressed to cause air to return into space in the bottle to return the bottle interior back to atmospheric pressure for removal of the apparatus.

A vehicular vacuum cleaning system, comprising: a vacuum pump; a control unit; an ashtray cleaning subsystem, and a cabin vacuum cleaning subsystem; wherein said ashtray cleaning subsystem comprises for each of at least one ashtray of said vehicle: a conduit connecting the ashtray to said vacuum pump through said control unit; for each of the ashtrays connected to said vacuum pump: a sensor for sensing when said ashtray is open / closed, thereby providing indication to said control unit to activate / deactivate said vacuum pump to draw air through said conduit; and wherein said cabin vacuum cleaning subsystem comprises: an extendable conduit; a lid, for covering the intake of said extendable conduit when not in use; a sensor for sensing when said lid is open / closed, thereby providing indication to said control unit to activate / deactivate said vacuum pump to draw air through said extendable conduit.

By means of a pre-swirl device, in steady-state engine operation, the rotational speed lines of the compressor are moved, by increasing the swirl at the compressor inlet in the rotational direction of the compressor, to such an extent that the steady-state operating point of the compressor comes to rest approximately at the absorption limit of the compressor. In this way, the level of the charge pressure can be adjusted in a controlled fashion to the value required for the respective engine operating point. In the event of a sudden increase in the engine load, it is possible by resetting the pre-swirl grate to generate a charge pressure increase without a time-consuming rotor acceleration. The pre-swirl device therefore simultaneously assumes the functions of charge pressure and engine load control.

A method is provided for controlling an exhaust gas temperature of an engine of a vehicle during interruption of fuel supply to the engine, wherein the engine drives a driveline of the vehicle. The method involves alternating between two or more operational modes, wherein at least one of the operational modes maintains a higher exhaust temperature than the one or more other operational modes.

The invention discloses an oil spraying vacuum degassing device for online monitoring of an oil chromatogram and an application method and relates to the field of separating materials through a chromatography. The oil spraying vacuum degassing device comprises a degassing cylinder for degassing, wherein the degassing cylinder is provided with an oil feeding opening for feeding oil and an oil returning opening for discharging the oil; the oil spraying vacuum degassing device further comprises a vacuum pump for realizing negative pressure of the degassing cylinder and a circulating solenoid valve for realizing circulating oil; the oil feeding opening and the oil returning opening are connected through a pipeline provided with the circulating solenoid valve; the oil feeding opening is connected with a spraying structure. When the oil spraying vacuum degassing device is used, pressure in the degassing cylinder is pumped to a complete vacuum negative-pressure state and then transformer oilis injected; then a plurality of times of circulation are carried out and filtered gas is pumped to finish concentration detection work; finally, an oil sample is recycled. The oil spraying vacuum degassing device disclosed by the invention has the beneficial effects that the degassing efficiency is improved and the degassing time is shortened; a bottom-end side face in the degassing cylinder is set to be a reversed tapered surface, so that the volume of residual oil can be effectively reduced and a condition that impurities deposited at the bottom of the inner side of the degassing cylinder are pumped into the pipeline can be avoided.

A liquid cooling device is mounted in a large-sized overhead projector to absorb heat generated by a light-generating device. The liquid cooling device has a water tank, a heat sink, a liquid block assembly and a pump. The water tank has an outlet hole formed on the middle of the water. The heat sink communicates with the water tank. The liquid block assembly contacts the light-generating device and is filled with a coolant and communicates with the heat sink via an inlet duct. The pump is mounted in the large-sized overhead projector and is in fluid communications with the water tank via an outlet duct mounted in the outlet hole of the water tank. Therefore, when the large-sized overhead projector is put upright or turned upside down, the outlet hole is always in the middle of the water tank, preventing the pump from idling and being damaged as the amount of coolant is reduced.

The invention discloses an integrated window sidetrack drilling tool. The integrated window sidetrack drilling tool comprises a hollow tapered mill, a wedge deflection tool deflection iron and a setting and anchoring member which are sequentially connected, the wedge deflection tool deflection iron is clamped in an arch-shaped dovetail groove on the lower portion of the tapered mill, a positioning bolt is arranged between the upper end of the wedge deflection tool deflection iron and the tapered mill, and a liquid guide tube is arranged in the wedge deflection tool deflection iron. The integrated window sidetrack drilling tool is characterized in that an auxiliary liquid hole corresponding to the positioning bolt is arranged on the tapered mill, a blind hole communicated with the auxiliary liquid hole is arranged on the positioning bolt, the auxiliary liquid hole is blocked by the positioning bolt when the wedge deflection tool deflection iron and the tapered mill are clamped, and an inner hole of the tapered mill is communicated with the outside through the auxiliary liquid hole and the blind hole of the positioning bolt when the positioning bolt is cut. The integrated window sidetrack drilling tool has the advantages of being capable of avoiding pump choking caused by the blocking of a nozzle of the tapered mill, guaranteeing drilling pressure can be fully added during windowing, and improving milling speed to enhance the efficiency of windowing; and completing the fixing of the wedge deflection tool and the windowing and window repair of the tapered mill through a trip of drilling to greatly improve work efficiency and reduce construction cost and labor intensity.

Apparatus for regulating the flow rate of fuel to a turboshaft engine in acceleration or deceleration, the engine having a free turbine and a core engine, the apparatus including sensors transmitting information to regulator elements, the information relating: to a first speed of rotation NTL of the free turbine; to a second speed of rotation Ng of the engine's gas generator; to an internal temperature T4 of the gas at the inlet to the free turbine; to the external pressure; and to the external temperature. The apparatus further includes control elements activated by the regulator to actuate a fuel metering system of the engine. The regulator evaluates the flow rate of fuel to be supplied to the engine in acceleration or deceleration on the basis of at least one optimum regulation relationship, which determines a main modulated flow rate as a function of a modulated speed of rotation.

The brake system has at least one brake circuit (I), in which a high-pressure pump is disposed. A self-aspirating charge pump is also provided, which is connected at least indirectly to the intake side of the high-pressure pump by an intake line of a supply container for brake fluid and by a pressure line. In the event of an inadequate supply of brake fluid by the charge pump, the pumping of air into the brake circuit (I) is intended to be precluded. To that end, a siphon is disposed in the intake line of the charge pump. Air aspirated by the siphon suddenly prevents pumping by the charge pump. The brake system is intended for use in motor vehicles with slip control or for automatic brakes.

The invention relates to the technical field of panel processing, in particular to a panel processing device facilitating wood bit collection. The problems that due to the fact that wood bits are thrown upwards when a saw web rotates at high speed in the cutting process, wood bit splashing and dust raising are caused are solved. The device comprises a device shell. The top of the device shell is fixedly provided with a processing table through a bolt, a wood bit collecting box and a dust suction pump are fixedly installed inside the device shell through bolts, and the saw web is fixedly installed inside the processing table. When the device is in use, the dust suction pump, a servo motor and a water pump are powered on, the height of a dust hood is adjusted according to the thickness of aprocessing panel, wood processing can be performed, most wood bits generated by saw web cutting can directly fall into the wood bit collecting box from the saw web, splashed wood bits and raised dustare sucked into the wood bit collecting box under the effect of the dust suction pump, wood bits and powder inside the wood bit collecting box can be wetted by means of spraying of a nozzle, wood bitsplashing and and dust raising are effectively avoided, and practicability is high.

The invention discloses an amphipathic conjugate anti-tumor nano-drug with the function of reversing multidrug resistance of tumors. An anti-tumor drug is in covalent linkage with a P-gp protein inhibitor quinine by a coupling agent to form amphipathic conjugate, and the amphipathic conjugate is self-assembled under water, so as to obtain the amphipathic conjugate anti-tumor nano-drug. The invention also discloses a preparation method and application of the amphipathic conjugate anti-tumor nano-drug. Compared with the prior art, the amphipathic conjugate disclosed by the invention can be self-assembled in water to form the anti-tumor nano-drug, and does not need any drug carrier, thereby realizing common delivery of the P-gp protein inhibitor and the anti-tumor drug; after the anti-tumor nano-drug enters multidrug resistance tumor cells, linking groups are fractured under a microenvironment condition in tumor cells, and the anti-tumor drug and the P-gp protein inhibitor are released out and generate the synergistic effect, thereby effectively killing the tumor cells and the multidrug resistance tumor cells and hopefully improving the treatment effect of the tumors and multidrug resistance tumors.

The invention discloses a drug-loaded nanoparticle with reductive responsiveness and a preparation method and applications thereof. The structural formula of the drug-loaded nanoparticle with reductive responsiveness is as follows:, wherein x is 45, y is 15, and z is 20, or x is 45, y is 12, and z is 6. The diameter of the drug-loaded nanoparticle disclosed by the invention is 91-109 nm. PEG hydrophilic segments constitute a hydrophilic shell layer of the polymer nanoparticle, and polyphosphoesters of which a side group contains disulfide bonds constitute a hydrophobic core. The block polymer can be formed into a micelle by self-assembling in water, and then pharmaceutical molecules are loaded in the hydrophobic core of the carrier nanoparticle through a physical embedding effect, so that the drug solubility is greatly increased, the cycling time is prolonged, and the vascular permeability enhancement effect (i.e. enhanced permeability and retention EPR effect enhancement) is passively targeted to tumor tissues. The nano drug carrier can entrap various hydrophobic antineoplastic drugs such as hydrophobic drugs such as doxorubicin, paclitaxel, gefitinib, camptothecin, and the like.

The invention discloses an automobile engine oil-gas separator. The automobile engine oil-gas separator comprises a lower hollow cavity (1) and an upper shell (2); a gas inlet pipe (4) where mixed oil and gas enters is connected to the lateral face of the lower hollow cavity (1); an oil outlet pipe (5) is arranged at the bottom of the lower hollow cavity (1); a gas outlet pipe (6) is arranged on the upper shell (2); the lower hollow cavity (1) is internally provided with a first separation mechanism and a second separation mechanism; the first separation mechanism comprises a separation support (8) used for guidance and a cavity body (20) communicated with the gas inlet pipe (4); the cavity body (20) is located in the upper portion of the lower hollow cavity (1); the upper end of the separation support (8) is fixed to the inner wall of the upper portion of the cavity body (20) in a sealed mode; the gas inlet pipe (4) and the outer circumference of the cavity (20) is in tangential connection. The automobile engine oil-gas separator is high in efficiency and good in filtering effect.

The invention discloses an engine low-pressure simulation testing platform. The engine low-pressure simulation testing platform comprises an airtight case body. A temperature adjusting device, an air pressure adjusting device, and an engine cooling device are disposed on the case body. A dynamometer, a dynamometer cooling device, and an engine oil supplying device are disposed in the case body. The engine low-pressure simulation testing platform is capable of simulating a low-atmospheric-pressure environment of a plateau at a low-altitude area and provides convenience for engine test.

The invention relates to a cryolite separating arrangement, which comprises a tank for putting the cryolite and the liquid mixture material, wherein the top of the tank is equipped with the surface agitator for making the liquid surface rotate, the surface agitator is the bifurcation shape, the tank is also equipped with the hollow cryolite collecting pipe, the cryolite collecting port of the cryolite collecting pipe is at the central position of the liquid surface rotating, and the discharge port of the cryolite vents to the exterior of the tank. The invention makes the cryolite move to the liquid surface rotating center of the cryolite collecting port naturally with the cryolite buoyance and centripetal force produced by mixing the liquid surface and discharge by the cryolite collecting pipe (that is also the center or centripetal discharging cryolite method), which not only saves the energy and improves the separation efficient, but also reduces the loss of solute and is fit for the concentration industry production by freezing.

A seal assembly comprises a first ring and a second ring which are rotatable relative to each other about a longitudinal axis (A-A). A first annular seal surface is formed on the first ring and is inclined with respect to the longitudinal axis and a second annular seal surface is formed on the second ring and is complementarily inclined to, and in abutment with, said first annular seal surface on the first ring. An annular groove is formed in at least one of said first and second seal rings adjacent to the seal surface on said seal ring and preferably a portion of the other ring projects into, or to a location adjacent to, the annular groove.

An accumulator for a hydraulic system, wherein the accumulator comprises a liner, a piston and a housing, that defines a pressure chamber, for receiving hydraulic fluid at high pressure, wherein the piston is biased towards an end position of the pressure chamber for interacting with the hydraulic fluid in the pressure chamber, and the piston is movable in a predetermined range for accumulating hydraulic fluid. The accumulator has at least one outlet port in a sidewall of the liner, which outlet port is covered by the piston in the predetermined range and is uncovered when the piston has moved a predetermined distance from the end position. A hydraulic system is also provided that comprises the above accumulator and an all-wheel drive system comprising the above hydraulic system. A method for de-airing an accumulator according to above is also provided.

The invention provides a sliding-mode-principle-based rapid charging control method for a hybrid energy storage system of an electric automobile. The rapid charging control method comprises the steps of firstly, controlling the current of a storage battery to be modulating periodic positive-negative alternating pulse current to realize rapid charging; secondly, absorbing the energy fed back to a direct-current bus when the storage battery is used for discharging by utilizing a supercapacitor so as to prevent the pumping of the voltage of the direct-current bus; and finally, when the storage battery is charged, adjusting the output current of the supercapacitor to realize the control on the storage energy of the supercapacitor and further preventing the voltage of the supercapacitor from exceeding the upper limit born by the device, wherein the influence on the performance of the system caused by the change of the work points is reduced as the control of a controller of the supercapacitor adopts a sliding mode control method. Being known from the simulation result, the sliding-mode-principle-based rapid charging control method can well control the current of the storage battery so as to enable the current to form into positive and negative pulses, and meets the stability of the voltage of the direct-current bus and the control on the terminal voltage of the supercapacitor.

The invention relates to the technical field of power corollary equipment, particularly to a structure-adjustable electric appliance cabinet, which comprises an external cabinet body made of stainlesssteel and an overhead electric control cooling fan. According to the invention, the structure-adjustable electric appliance cabinet is a cabinet body with a cylindrical structure, and lateral isolation plates and a middle air guide cylinder are arranged in an outer cabinet body, and are matched to divide the interior of the outer cabinet body into a plurality of independent storage cavities, so that the storage space in the cabinet body is greatly improved; a top mounting frame with a built-in overhead electric control cooling fan is fixed to an opening in the upper end of the middle air guide cylinder in a threaded mode, and a longitudinally-arranged strip-shaped air guide opening with a built-in overturning air guide plate is formed in the outer side face of the middle air guide cylinder, so that heat dissipation of the whole electric appliance cabinet is more centralized and efficient, cost is saved, and dust is prevented from being pumped in after a door is opened; and the operation is simple and convenient, the assembling and disassembling mode can be controlled through lateral locking bolts, a certain degree of damping performance is achieved, and the application range is wider.

The invention discloses a hydrogen energy automobile carbon fiber product forming mold and a forming method, and relates to the technical field of hydrogen energy automobile carbon fiber product formation. The hydrogen energy automobile carbon fiber product forming mold comprises a single-face mold, a vacuumizing pipe and a compressed air rapid connection port, wherein a mold cavity is formed in the center of the upper end of the single-face mold, metal net plugs are arranged on the two sides of the upper end of the single-face mold, the vacuumizing pipe is connected to the lower ends of the metal net plugs, the other end of the vacuumizing pipe is connected with a vacuumizing quick connector, and a heating / cooling pipe is arranged inside the single-face mold and located on the outer side of the mold cavity. According to the hydrogen energy automobile carbon fiber product forming mold and the forming method, the heating / cooling pipe is a pipeline shared by heating and cooling, water vapor is adopted to replace traditional heat transfer oil during forming, and cold water is used for cooling during cooling, so that the pipeline shared by heating and cooling is achieved, two sets pipelines do not need to be designed, the mold manufacturing period is shortened, and meanwhile the cost is reduced; and in addition, the water vapor is used, compared with the heat transfer oil, the heating rate is increased by more than 50%, the energy consumption cost is reduced, and meanwhile, the production efficiency is improved.

Plastification unit for an injection unit of an injection-moulding machine with a heated cylinder (1), at the front end of which a cylinder head (2) with a nozzle (3) has been secured, mounted in a housing (6), which has connection to an injection cylinder (5) and to a non-return valve (13), which inhibits the reverse flow of the plastic during injection, characterized in that in the central bore of the cylinder (1) an axially displaceable torpedo plunger (4) has been arranged which is composed of a shaft (4a) and of a combination of shear components (4b) and mixer components (4c) and which is surrounded by a stream of plastic that melted and homogenized in the process, where two feed plungers (7) operating in opposite directions have been arranged in bores laterally alongside the central bore and bring about conveying of the plastic through the feed channels (8), through the feed-channel valves (9), and through the feed grooves (11) in the shaft (4a) of the torpedo plunger (4).

The invention discloses a rhizoma atractylodis processing device capable of achieving pulverizing and drying. A first drive motor, a temperature sensor, a body and a bearing frame are included. Through installation of a silencing cover, a PLC, a heating wire, a temperature sensor, an air guiding main pipe, a body, an air guiding branch pipe and filter cloth, the device can heat gas through the heating wire, the temperature sensor is used for monitoring the gas temperature situation in a hot air cavity constantly, the monitored data are sent to the PLC, once the temperature reaches the preset value, the PLC can control the heating wire to power off and stop heating, and a good temperature control heating function is achieved. By utilization of the functions of the air guiding main pipe andthe air guiding branch pipe, hot airflow can be evenly guided into the body, and uniformity during drying is improved; and through the arrangement of the filter cloth, the situation that dust scraps in the body enter the air guiding main pipe and the air guiding branch pipe, and blockage is caused can be avoided, and accordingly the practicability of the device is enhanced.

The invention discloses a special drill bit for underground pipeline exploration. The special drill bit for underground pipeline exploration comprises a drill bit body, wherein the drill bit body is cylindrical, a connecting part matched with a drill stem of a drilling rig is arranged on the upper portion of the drill bit body, and the lower end of the drill bit body is planar. A water jetting hole is formed in the center of the drill bit body, a water drainage groove is vertically formed in the outer wall of the drill bit body, a water guide groove corresponding to the water drainage groove is formed in the bottom face of the drill bit body, the inner side of the water guide groove is communicated with the water jetting hole, and the outer side of the water guide groove is communicated with the water drainage groove. The special drill bit for underground pipeline exploration has the advantages that because the drill bit body is cylindrical, and the lower end of the drill bit body is of a planar structure, the requirement for cutting soft soil and medium-hardness soil and the backfill requirement can be met, but hard components such as a metal pipeline will not be cut; when the drill bit encounters a hard component, the drill bit can only feed back hole bottom information to the ground surface but cannot cut the hard object, and thus damage to underground pipelines can be effectively avoided. The drill bit body is formed by machining ABS hard plastics, and the special drill bit for underground pipeline exploration is simple in structure, convenient to manufacture, safe in use and low in cost.