Tandem type double-combustion-chamber rotary detonation ramjet engine and working method

• Main Authors: WANG YITIAN, ZHENG YUSHAN, WANG CHAO, CAI JIANHUA, LIU YU
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention provides a tandem type double-combustion-chamber rotary detonation ramjet engine and a working method. Comprising a combustion chamber outer shell, an air inlet channel, an isolation section, a first-stage combustion chamber, a first-stage contraction section, a second-stage combustion chamber, a second-stage contraction section, an outlet spray pipe, a combustion chamber center body, a first-stage fuel injection cavity, a second-stage fuel injection cavity, a first-stage fuel spray hole, a second-stage fuel spray hole, a center body front support and a center body rear support. According to the rotating detonation combustion structure flow characteristic under the high or low Mach number working state, compatibility of the high or low Mach number rotating detonation combustion working state in the same flow channel is achieved, and therefore the working Mach number range of the rotating detonation ramjet engine is widened; considering the situation that the combustion back pressure forward tran