Double-rotational-flow torch igniter and rocket engine

• Main Authors: GAO XIANGYU, LIU YUEXI, LIU PENGCHENG, TANG MINJIA, BAO QILIN
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: AIR SUPPLY; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DRAUGHT-INDUCING; EXTINGUISHING-DEVICES; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; IGNITION; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

The invention relates to the technical field of liquid rocket engines, in particular to a double-rotational-flow torch igniter and a rocket engine. The double-rotational-flow torch igniter comprises a head cavity shell, the head cavity shell comprises a first side peripheral wall and a second side peripheral wall which are arranged at intervals in the radial direction, and an oxidizing agent collection cavity is formed between the first side peripheral wall and the second side peripheral wall in a spaced mode; an oxidizing agent rotational flow channel is formed between the first side peripheral wall and the outer side peripheral wall of the high-energy igniter at an interval; an oxidizing agent rotational flow injection hole is formed in the first side peripheral wall; an ignition combustion chamber is defined by the inner wall of the combustion chamber shell and communicates with the oxidant rotational flow channel; a fuel gas collecting cavity is formed between the inner wall of the fuel collecting cavity