Afterburner integrated with stabilizer and worm wheel rear rectification support plate

Abstract

The invention discloses an afterburner integrated with a stabilizer and a worm wheel rear rectification support plate. A combustion part in the afterburner is integrated with a worm wheel rear load-bearing framework; the worm wheel rear rectification support plate is integrated with an inner culvert flame stabilizer, and cooling air is fed; a fuel oil supply pipe and a fuel oil nozzle are arranged in the rectification support plate; main fuel oil is transversely sprayed out from two sides of the support plate; and duty fuel oil is sprayed out from a groove on the rear surface of the stabilizer to form a duty flame. A pneumatic appearance of an outer culvert flame stabilizer is designed as a V-shaped bluff body, and the cooling air is fed into the outer culvert flame stabilizer; a fuel oil pipeline is arranged in the outer culvert flame stabilizer; the main fuel oil is transversely sprayed by a baffle plate nozzle; and the duty fuel oil is sprayed out from a groove on the rear surface of the outer culvert flame stabilizer. An annular flame stabilizer is arranged between the inner culvert flame stabilizer and the outer culvert flame stabilizer, so that functions of the stabilizer and a flame coupler are realized in a circumferential direction. The internal parts of the afterburner are integrated, so that the part utilization efficiency is improved, and the engine thrust-weight ratio is increased.

Description

technical field [0001] The invention relates to a novel afterburner of an aviation turbofan engine, in particular to an afterburner with an integrated design of a stabilizer and a rear straightening strut of a turbine. Background technique [0002] The new generation of fighter jets needs to achieve supersonic cruise in the non-afterburner state, which requires the engine and afterburner to be more compact in structure, reduce the number of afterburner components, increase the utilization efficiency of components, shorten the length of the afterburner chamber, and reduce the total pressure loss in the non-afterburner state , to increase thrust in the middle state. The structural design of the traditional afterburner has become an important factor restricting the further improvement of the performance of the afterburner. In the case of the limited development potential of the traditional afterburner structure, exploring new afterburner technical solutions has great practical...

AI Technical Summary

Problems solved by technology

However, from the perspective of simulation calculation and experimental research, it is proved that the recirculation zone formed behind the rectifying support plate is relatively small, only a small part of the main fuel injected horizontally is entrained into the recirculation zone, and the ability of the flame stabilizer to stabilize the flame is very limited

There is a big difference in the internal and external tissue combustion methods of the afterburner. The previous design did not specifically design the external flame stabilizer and tissue combustion methods.

Images