4results about How to "Reduce pulsation" patented technology

This invention provides a pump body assembly for a compressor and a compressor. The pump body assembly includes: a first cylinder with a suction channel, comprising a main channel and a branch channel, the axis of the main channel being inclined relative to the axis of the compressor; a connecting channel on a partition member, the axis of the connecting channel being inclined relative to the axis of the compressor; and an intake channel on a second cylinder, the axis of the intake channel being inclined relative to the axis of the compressor. The main channel, the connecting channel, and the intake channel are sequentially connected. The intake end of the main channel is located on the side of the first cylinder and / or on the end face of the first cylinder facing away from the partition member. The intake channel communicates with the chamber of the second cylinder, and the branch channel connects the main channel and the chamber of the first cylinder. The technical solution of this invention solves the problem of high suction resistance in the second cylinder of the compressor in the prior art, which leads to reduced overall energy efficiency.

The utility model provides a kind of air leakage screw conveyer device, the utility model relates to screw conveyer mechanism technical field, including screw conveyer assembly, driving mechanism, protection subassembly and negative pressure component;The screw conveyer assembly includes the shell extending along left and right direction and the screw conveyer rod piece extending along left and right direction;By the setting of negative pressure component, in negative pressure component, shell and negative pressure storehouse interior pressure is lower than external atmospheric pressure, if feeding and discharging place are completely open, outside air will rush in a large amount, it will lead to unable to maintain the required vacuum degree, and the air that rushes in can interfere with the stable flow of material, even cause blockage, and in the design, second helical blade segment cooperates pressure door, and a dynamic material seal is formed in shell interior jointly.The material with high filling degree itself becomes the barrier to prevent air from entering, achieving the effect of physical sealing, thereby ensuring the negative pressure state inside the system.

The utility model relates to vortex spinning machine field discloses a vortex spinning machine air intake noise reduction device, including the air intake cover for vortex spinning machine air intake noise reduction, the air intake cover's air outlet end is fixedly installed with the buffer pipe, the inboard of buffer pipe is equipped with stabilizing mechanism, the other end of buffer pipe is fixedly installed with the noise reduction cylinder, the inboard of noise reduction cylinder is equipped with the noise reduction mechanism, the outside of noise reduction cylinder is fixedly equipped with the sound insulation shell. The utility model has the advantages and effects that: can intercept the impurity dust in the airflow while air intake, prevent its into the equipment, pollute the yarn while producing the noise, guarantee the clean of equipment internal environment, and can make the airflow more uniform and stable, reduce the pulse and fluctuation of airflow, reduce the generation of noise, increase the practicability of equipment, utilize the noise reduction mechanism better match the propagation characteristic of sound wave, improve the sound absorption effect.

This invention discloses a shock absorber, suspension system, vehicle, and suspension control method for eliminating high-frequency pulsations. The shock absorber includes: a cylinder containing a main piston that divides the cylinder interior vertically into an upper main chamber and a lower main chamber; a compression valve and a return valve on the main piston; a piston rod connected to the top of the main piston, extending upwards through the cylinder; and an inner shell connected to a hollow rod. An elastic component is located inside the inner shell, dividing the inner shell vertically into an upper secondary chamber and a lower secondary chamber. The hollow rod extends upwards through the main piston, with its two ends connected to the upper main chamber and the upper secondary chamber, respectively. A throttling orifice connected to the lower secondary chamber is located on the bottom side of the inner shell. This invention adds a structure within the cylinder that can elastically attenuate fluid impacts, effectively reducing pulsations, minimizing the impact of large-amplitude, high-impact compressive damping forces, reducing the direct transmission of road impacts to the vehicle body, and improving vehicle ride smoothness.