5results about How to "Reduce radial width" patented technology

The utility model provides a counterbalance, a motor rotor assembly and a compressor, the counterbalance comprises a counterbalance main body, the counterbalance main body extends along the circumferential direction of a motor rotor, the counterbalance main body is provided with a windward end and a leeward end, and at least the windward end is provided with a suspended flow guide body extending along the circumferential direction of the motor rotor. A suspended overflowing space is formed between the side, close to the first end face, of the suspended flow guiding body and the first end face, and the suspended flow guiding body is provided with a flow guiding radial outer side face and a flow guiding radial inner side face. The flow guide radial outer side face gradually gets close to the radial inner side of the motor rotor and / or the flow guide radial inner side face gradually gets close to the radial outer side of the motor rotor so that the cross section of the suspended flow guide body can become smaller and smaller in the circumferential direction away from the balance block body. According to the utility model, the internal flow field of the compressor is effectively prevented from being disturbed due to the pumping effect, the operation noise of the compressor is reduced, and meanwhile, the oil spitting rate and oil spitting quantity of exhaust refrigerant of the compressor are reduced.

The application provides a fan wheel and a cooling fan with the fan wheel, which are used to solve the problem that the existing fan wheel is easy to form vortex when rotating, and the air volume is difficult to improve. It comprises a rotating shaft, a hub and a plurality of fan blades, the plurality of fan blades respectively have a proximal end and a distal end, the proximal end is connected to the hub, the fan blade has a bifurcated structure adjacent to the distal end, the bifurcated structure has a main wing and a small wing, the small wing has an air inlet side and a flow guide side, the small wing has an air inlet first end point on the air inlet side, the small wing has a flow guide first end point on the flow guide side, the air inlet first end point and the flow guide first end point are connected to the main wing, the air inlet first end point and the axis have a first radial distance, the flow guide first end point and the axis have a second radial distance, and the second radial distance is the same as the first radial distance.

The burner comprises a body, a pulverized coal pipe, a ventilation pipe assembly and a valve assembly, the body is provided with a cavity, the pulverized coal pipe is arranged in the cavity, one end of the pulverized coal pipe extends into a backflow area of the cavity, the pulverized coal pipe is provided with a coal outlet, the coal outlet is communicated with the backflow area, and the ventilation pipe assembly is arranged on the pulverized coal pipe in a sleeving mode. The ventilation pipe assembly is provided with a first flow channel, a second flow channel and a third flow channel which are sequentially arranged from inside to outside and all communicated with the backflow area, the valve assembly comprises a first adjusting valve, a second adjusting valve and a third adjusting valve, and the first adjusting valve is arranged at an air inlet of the first flow channel and used for adjusting the air volume introduced into the first flow channel; the second adjusting valve is arranged at the air inlet of the second flow channel and used for adjusting the air quantity introduced into the second flow channel, and the third adjusting valve is arranged at the air inlet of the third flow channel and used for adjusting the air quantity introduced into the third flow channel. The combustor is suitable for different coal types and is high in adaptability.

The utility model belongs to the technical field of building and municipal construction, and particularly discloses a foundation pit decompression dewatering well water stop reinforcing structure which is arranged between a well casing and a dewatering well hole wall and comprises a filter material layer, a clay ball layer and at least one reinforcing unit which are arranged in a filling mode from bottom to top. The reinforcing unit comprises a grouting layer and a concrete layer arranged above the grouting layer; each grouting layer is provided with at least one reserved grouting pipe, each reserved grouting pipe is vertically arranged, the top end of each reserved grouting pipe penetrates out of the uppermost concrete layer, and a plurality of grout discharging holes are formed in a pipe body of each reserved grouting pipe; the arrangement height of the filter material layer is not lower than the top end of the well casing filter pipe section. According to the water stop reinforcing structure, through the design of the combined structure of the clay ball layer, the grouting layer, the concrete layer and the reserved grouting pipe, it is guaranteed that the pressure reducing and dewatering well does not inrush during excavation of the foundation pit, the construction safety of the foundation pit is improved, and the manufacturing cost is saved.

This application provides a flat wire motor, powertrain, and vehicle, relating to the field of flat wire motor technology. An opening is provided at the top of the flat wire motor housing, corresponding to the phase terminals of the U-phase, V-phase, and W-phase lead-out buses, so that the phase terminals extend upward along the axial direction of the stator core. The U-phase, V-phase, and W-phase lead-out buses are located on a first layer above the solder joints, and the neutral bus is raised to a second layer, wherein the second layer is the space farther away from the stator core compared to the first layer. Except for the portion corresponding to the opening, the radial width of the neutral bus gradually narrows from the center to both ends, so that the U-phase, V-phase, and W-phase lead-out buses are arranged with the neutral bus in the first layer.