31results about How to "Reduce vortex phenomenon" patented technology

The invention relates to a sealed insulating material bulkhead-penetrating device for strong electricity which is indispensable for introducing the strong electricity into space with high tightness; a bulkhead-penetrating conductor is screwed in the wall of the sealed space in a threaded manner and fixed by an insulating seal spacer, an insulating hollow lead screw and a nut, and thereby tightness of the bulkhead-penetrating conductor and the bulkhead is improved; by using the spacers, gaskets and other materials, strong magnetic field generated by alternating current is reduced or weakened. The pressure of the silica gel seal spacer is increased by the insulating hollow lead screw and the insulating nut with threads. A binding post with large current and high performance is adopted to meet requirements on large current and low resistance. And two ends of the binding post are fixed by the combination of flat gaskets and nuts, and the strong magnetic field generated by the alternating current and the appearance of eddy current are reduced as much as possible; two sides of the bulkhead of the sealed space are basically symmetrically distributed, so that lever balance and screw pitch balance of the lead screw conductor are ensured, and tightness of connection of the bulkhead of the sealed space and the lead screw conductor is also ensured.

The invention relates to an electromagnet assembly of a magnetic exchange valve. The electromagnet assembly comprises a first iron core, a second iron core, a push-pull rod, a cooling bracket, an armature, coils, a magnetic yoke, a magnetic isolating sleeve and a magnetic conducting ring, wherein the armature, the coils, the magnetic yoke, the magnetic isolating sleeve and the magnetic conducting ring are arranged in an axial installation through hole of the cooling bracket; the first iron core and the second iron core are arranged at two ends of the cooing bracket separately; one end of the armature and one end of the push-pull rod are assembled or manufactured into a whole; two ends of the magnetic isolating sleeve are assembled or welded on the first iron core and the second iron core separately and the magnetic isolating sleeve is located on the periphery of the armature; and two coils are arranged on the periphery of the magnetic isolating sleeve and the magnetic conducting ring is arranged between the two coils. The electromagnet assembly is characterized in that the magnetic yoke is formed by two or more strip-shaped magnetic yokes; two or more strip-shaped magnetic yoke slots are formed in the inner wall of the cooling bracket; and the strip-shaped magnetic yokes are embedded into the strip-shaped magnetic yoke slots separately. The electromagnet assembly has the advantages that the eddy current phenomenon can be reduced, heat dissipation of the coils is facilitated and the electromagnetic conversion efficiency is improved.

The invention relates to and provides an air intake system of an automobile engine. The air intake system comprises an air-filtering air intake pipe assembly, an air filter assembly and an air-filtering air outtake pipe assembly, wherein the air intake end of the air filter assembly is connected with the air-filtering air intake pipe assembly; the air outtake end of the air filter assembly is connected with the air-filtering air outtake pipe assembly; the air-filtering air intake pipe assembly comprises an air-filtering air intake pipe, a separator, an air intake insertion pipe and a purge valve; the air-filtering air intake pipe is connected with the air filter assembly; the air intake insertion pipe and the separator are both arranged in the air-filtering air intake pipe; the separator is arranged between the air intake insertion pipe and the air filter assembly; the purge valve is connected with the air-filtering air intake pipe; the purge valve is located between the separator and the air filter assembly. The air intake system has the beneficial effects that as multi-stage filtering is formed, the filtering capability is improved, a vortex phenomenon is weakened, and the noise is lowered.

The invention relates to a minitype airflow type gyro. The gyro comprises a shell, wherein the two ends of the shell are sealed through an end cover, and the shell is internally provided with a testing cavity body; the testing cavity body is formed with an air inlet nozzle and an air outlet; a thermosensitive element is arranged in the position approaching the air outlet in the testing cavity body; a gas circulation channel is arranged between the shell and the testing cavity body and is used for connecting the air inlet nozzle and the air outlet; the outer side of the air inlet nozzle of the testing cavity body is provided with a piezoelectric pump used for pressing the gas into the testing cavity body, and the testing cavity body, the gas circulation channel and the piezoelectric pump form a closed cycle of the gas; the testing cavity body is in central symmetry along the radial direction; from the air inlet nozzle to the air outlet, the testing cavity body successively comprises a guide section used for guiding the diffusion angle of the airflow bundle, a flow section used for leading an airflow bundle to flow smoothly and a confluence section used for collecting the airflow bundle to the air outlet through a smooth inclined plane; and the thermosensitive element is arranged on the tail end of the confluence section. The minitype airflow type gyro provided by the invention has the advantages that the measuring accuracy and the stability of the gyro operation are improved.

The invention relates to the technical field of integrated stoves, and aims to provide a noise reduction mechanism for an integrated stove, wherein the noise reduction mechanism for the integrated stove can reduce noise pollution effectively. According to the adopted technical scheme, the noise reduction mechanism for the integrated stove comprises a mounting plate and a plurality of noise reduction units which are arranged on the mounting plate; the mounting plate is matched with a smoke inlet, and a plurality of mounting holes are formed in the mounting plate corresponding to the noise reduction units in number; the noise reduction units are arranged in the mounting holes and comprise columnar shells, wherein the front ends of the shells are closed, and the rear ends of the shells are opened; resonance tubes are arranged in the shells, and resonance cavities are constituted in the resonance tubes; the front ends of the resonance tubes communicate with the rear ends of connecting pipes, and the front ends of the connecting pipes extend to the front end faces of the shells and communicate with the outside; and airflow holes communicating with inner cavities of the shells are formedin the resonance tubes. Airflow noise of the smoke inlet of the integrated stove can be effectively reduced, and the kitchen environment is improved.

The invention discloses a Venturi tube flow measurement device and an installation method. The flow measurement device includes an inlet cylinder section, a conical constriction section, a cylinder throat section and a conical divergence section arranged in sequence. There are positive pressure-taking holes in the radial direction on the top, and negative pressure-taking ports in the radial direction on the cylindrical throat section. The conical constriction section of the Venturi tube, the cylindrical throat section and the conical diffusion section are integrally formed castings. The external pipe diameters of the two ports of the Venturi tube conical contraction section and the conical diffuser section are adapted to the inner diameter of the inlet circular tube section; the profiles of the Venturi tube conical contraction section, the cylindrical throat section and the conical diffuser section are hyperbolic, The two ends of the conical constriction section and the conical divergence section of the Venturi tube are respectively provided with positioning pieces. The Venturi tube measuring device is simple in processing, convenient in installation, low in manufacturing cost, and can meet the needs of engineering measurement.