2results about How to "Quick blend" 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.

This invention discloses a high-efficiency, compact lobe mixer, which consists of a lobe, an air distribution plate, a first air distribution hole, a primary fuel distribution chamber, a fuel mixing pipe, a fuel inlet pipe, a flow channel, a flow channel pipe, a flange, mounting holes, a second air distribution hole, a film gas hole, a secondary fuel distribution chamber, a fuel branch pipe, and fuel holes. It enables rapid, efficient, and low-pressure-loss mixing of fuel and air. The mixer utilizes the vortex development at the lobe tip for fuel and air mixing. Air enters the mixing channel at a predetermined velocity after being rectified by the air distribution hole. The fuel distribution chamber is attached to the outer wall of the lobe and connected to the fuel pipe at the lobe tip via the fuel branch pipe, ensuring uniform fuel distribution and lobe structural strength. The number, diameter, angle, and spatial position of the fuel holes at the lobe tip are determined based on the area of ​​the two ducts separated by the lobe. A film gas hole is provided at the outlet of the mixing channel, serving both to enhance mixing and for structural cooling.