公开(公告)号：US20240328626A1

公开(公告)日：2024-10-03

申请号：US18541041

申请日：2023-12-15

Applicant: AERO ENGINE ACADEMY OF CHINA

Inventor： Shiqi WANG ,  Quan WEN ,  Xiao HAN ,  Qian YANG

IPC: F23R3/38 ,  F23R3/14

CPC classification number: F23R3/346 ,  F23R3/14 ,  F23R3/286 ,  F23R3/38

Abstract: The present disclosure provides a central staged combustion chamber with self-excited sweeping oscillating fuel injection nozzles, including an outer housing with a cavity inside, a main stage coaxially disposed with the outer housing, and a pilot stage coaxially disposed with the outer housing. An annular fuel passage is used for connecting a plurality of self-excited sweeping oscillating fuel injection nozzles, and the self-excited sweeping oscillating fuel injection nozzles are suitable for injecting oscillating liquid fuel into a primary swirling passage. The fuel is output in a fan shape through each of the self-excited sweeping oscillating fuel injection nozzles and is dispersed by an incoming flow through the swirling passage, so that the atomization performance and spatial distribution uniformity of the fuel can be greatly improved.