3results about How to "Increase design difficulty" patented technology

This utility model relates to the field of compressor technology and discloses a fully enclosed single-stage centrifugal compressor, including a lower casing, an upper casing, an impeller, a rotating main shaft, and a motor stator. An impeller and a thrust disc are provided on one side of the rotating main shaft. The main body of the rotating main shaft is rotatably connected to the upper and lower casings via radial bearings on both sides, and the main body of the rotating main shaft is rotatably mounted in the motor stator, which is mounted on the lower casing's internal fixed seat. The upper and lower casings are connected by welding. A refrigerant inlet is provided on the side of the lower casing, and a refrigerant outlet is provided on the volute. This utility model uses refrigerant as the compressor's compression medium. The refrigerant enters through the lower casing inlet, passes through the lower and upper casings, is compressed by the impeller, and flows out through the outlet. Simultaneously, the refrigerant cools the motor stator, reducing the number of compressor parts and improving heat dissipation efficiency. Furthermore, the bearings used in this utility model are air-suspended or magnetic-suspended bearings, eliminating the need for lubrication and increasing energy efficiency.

The application provides a method for forming a calendered glass with a thickness of less than 2mm, and belongs to the technical field of calendering of glass. The method comprises the following steps: flowing a glass melt with a viscosity of less than 10 4 Pa·s into a closed container containing a metal liquid; when the viscosity of the glass melt increases to 10 5.3 -10 5.8 Pa·s, the glass melt is formed into a viscoelastic glass ribbon with a certain width and a thickness of H1 by horizontal drawing, and H1<4mm; when the viscosity of the viscoelastic glass ribbon increases to 10 5.8 -10 6.3 Pa·s, the viscoelastic glass ribbon is introduced between an upper calendering roller and a lower calendering roller through a guide roller; after being drawn and extruded by the upper calendering roller and the lower calendering roller, the viscosity of the viscoelastic glass ribbon is greater than 10 6.8 Pa·s, the thickness is H2, H1>H2, and H2≤2mm; and the viscoelastic glass ribbon is annealed and cooled to obtain a product. The method is used for producing calendered glass with a thickness of less than 2mm.

This application relates to the field of radio frequency microwave circuit technology and discloses a hybrid integrated millimeter-wave coaxial radial triode, including a first coaxial line, a dielectric substrate, three output circuits disposed on the dielectric substrate, and a second coaxial line. The output circuit includes a coaxial probe, an arcuate stripline, and a width-change-abrupt stripline connected in sequence, with at least one slot structure disposed on the arcuate stripline. This application utilizes a concentric arcuate stripline disposed inside the first coaxial line solely for transmitting excitation signals, and employs a circuit design on the arcuate stripline that enables the implementation of a bandpass filter structure. This allows the signal excited and coupled by the coaxial probe to be transmitted via the arcuate stripline to three signals of different specific frequency bands to a standard microstrip line connected outside the first coaxial line. This effectively improves upon the problem of the difficulty and large workload in designing common port impedance matching networks in traditional circuit structures.