4results about How to "Efficient blending" patented technology

This invention discloses a concave cavity flame stabilizer structure, its fuel injection and cooling method, and an afterburner. The structure includes a symmetrical Tesla valve, a fluid oscillator, and shape memory alloy ribs. The Tesla valve is located at the front end of the evaporation chamber of the afterburner, utilizing its unidirectional flow resistance characteristics to suppress fuel backflow caused by pressure fluctuations and ensure stable fuel supply. The fluid oscillator replaces the traditional injection hole, converting the fuel-air mixture into a high-frequency, large-scale periodic swept jet injected into the concave cavity, improving atomization, evaporation, and mixing efficiency. The shape memory alloy ribs are located on the cold side of the bottom and rear wall of the concave cavity, automatically adjusting their shape according to changes in wall temperature to achieve dynamic matching between cooling intensity and heat load. This invention, through the system integration of fuel supply, combustion, and cooling, solves the problems of fuel backflow, low atomization efficiency, and poor adaptability of the cooling system under wide operating conditions in traditional concave cavity structures, significantly improving the combustion efficiency and thermal protection reliability of the afterburner.

The utility model discloses an atomization testing device special for an injector. The atomization testing device comprises a cart, a silencer and a testing assembly. The testing assembly has two paths, namely an oxygen path assembly and a combustion path assembly; the oxygen path assembly comprises an oxygen path pressure storage tank, an oxygen path pressure controller, an oxygen path pressure gauge, an oxygen path flowmeter, an oxygen path filter, an oxygen path safety valve and an oxygen path funnel; the combustion path assembly comprises a combustion path pressure storage tank, a combustion path pressure controller, a combustion path pressure gauge, a combustion path flowmeter, a combustion path filter, a combustion path safety valve and a combustion path funnel. Deionized water is used as a propellant working medium, an oxygen path and a combustion path are simulated, the front pressure of the injector is changed by adjusting the pressure controller, the flow of the deionized water passing through the injector is measured through the flow meter, the atomization state is photographed and recorded, and the relation between the flow of the deionized water of the injector and the pressure drop is measured. The pressure drop under the rated deionized water flow is obtained, and the flow, the pressure drop and the atomization effect of the injector are tested and verified at the same time.

The invention discloses an Ilex cornuta leaf-shaped turbulent flow element and an enhanced heat exchange tube, and belongs to the technical field of heat exchange equipment. The turbulent flow element comprises holly leaf-shaped turbulent flow pieces, and the turbulent flow pieces are welded and fixed through adjacent thorn teeth to form an axial through type fluid channel in a surrounding mode. Each spoiler comprises a leaf-shaped base body and bionic spoiler thorns, and sharp thorn teeth are arranged at the two radial ends and the two axial sides of each spoiler. Bionic turbulent flow thorns are obliquely distributed on the outer turbulent flow face at equal intervals, each bionic turbulent flow thorn is composed of two wing-shaped blades, the front edges of the wing-shaped blades are blunt, the rear edges of the wing-shaped blades are in a thorn shape, and notches are formed between the blades. Overflowing holes are formed in the central axis of the leaf-shaped base body at intervals, and the edges of the overflowing holes are bent to form turbulent flow tongue pieces. And a plurality of turbulent flow elements are arranged in the enhanced heat exchange tube in series. Through bionic configuration, turbulence is stably generated within a wide Reynolds number range, radial circulation force is enhanced, and collaborative optimization of heat transfer enhancement and resistance reduction is achieved.