3results about How to "Reduce initial resistance" patented technology

This utility model relates to the field of tapping guides, and discloses a tapered guide head for preventing jamming of thread tapping guides. It includes a main body, a tapered head fixedly connected to the bottom of the main body, a spiral drilling edge on the surface of the tapered head, a handle fixedly connected to the top of the main body, an oil inlet at the top of the handle, a reservoir inside the tapered head, an oil passage inside the main body, the reservoir communicating with the oil inlet via the oil passage, and multiple channels inside the tapered head arranged in a ring at equal angular intervals. In this utility model, lubricant is delivered to the outlet through the oil inlet, reservoir, oil passage, and channels, forming a continuous lubricating film. When the tapping machine rotates the tapered head and rubs against the workpiece, it reduces frictional resistance, minimizes heat accumulation, and prevents the tap from overheating and deforming.

The invention relates to the technical field of ventilation systems, in particular to a ventilation system energy-saving transformation method based on filtration, which comprises the following steps: S1, in a brand new state of an original filter, measuring a section wind speed V1, filter efficiency e1 and filter pressure loss p1 at the wind speed, and measuring corresponding energy consumption n at running time T; s2, replacing the high-efficiency low-resistance filter, adjusting the wind speed of the operation section of the system to V1, measuring the efficiency E1 and the filtering pressure loss P1 of the filter at the wind speed, and measuring the corresponding energy consumption N of the operation time T; and S3, implementing energy efficiency evaluation. In the early stage of replacing the high-efficiency low-resistance filter, the initial resistance is lower, the needed fan work is reduced, under the condition of the same ventilation quantity, the fan work is reduced, the energy consumption is lower, in the middle and later stages of replacing the high-efficiency low-resistance filter, the final resistance is lower than that of an original filter, the average resistance is lower, and the needed fan work is reduced in the whole life cycle stage. Therefore, energy conservation is realized.