2results about How to "Adjust the displacement" patented technology

The invention relates to the technical field of test devices, in particular to an engine combustion system steady flow test device which comprises a test bench, a combustion chamber is arranged at the top of the test bench, a core box is arranged at the top of the test bench, and an oil sprayer communicated with the combustion chamber is arranged on one side of the test bench; the limiting mechanism is arranged at the top of the test bed, and the limiting mechanism is used for limiting and fixing the position of the core box; in the test process, through mutual cooperation of a pressure regulating mechanism, a flow guide pipe and a flow guide channel, a rotating shaft can drive a second cone pulley to rotate by rotating a rotating block, and a rotating plate is driven to rotate synchronously under mutual engagement of a first cone pulley and the second cone pulley, so that the shielded area of a pressure regulating hole can be changed, the exhaust speed of the exhaust end is changed, and the test efficiency is improved. And the pressure in the combustion chamber is adjusted by adjusting the gas displacement, so that the effect of performing a steady flow test under different pressures of the combustion chamber can be realized.

The utility model belongs to the technical field of recycling devices, and discloses a sodium sulfide waste alkali liquor resource recycling device which comprises a recycling box, a bottom cover is installed at the bottom of the recycling box through a thread structure, a feeding pipe is fixedly installed at the top of the recycling box, and a recycling mechanism is arranged in the recycling box. The recycling mechanism comprises a separation frame, a partition plate, a mounting plate, a mounting column and an extension piece, and the separation frame is fixedly mounted in the recycling box; according to the sodium sulfide waste alkali liquid recycling device, water vapor generated in the evaporation process of sodium sulfide waste alkali liquid in the recycling box can circularly flow in the recycling box through the first circulating groove and the second circulating groove by arranging the separation frame, so that the water vapor can be frequently in contact with the mounting columns on the outer side of the separation frame; and the water vapor crystal powder can be attached to the extension piece through the extension piece on the side wall of the mounting column, so that a medium with light mass can be recovered, and the recovery efficiency of the sodium sulfide crystals is higher.