US 12,188,435 B2
Dual-mode ramjet engine with variable fuel injection
Juhyun Bae, Daejeon (KR); Sangwook Jin, Daejeon (KR); Haeseung Jeong, Daejeon (KR); Minchan Kwon, Daejeon (KR); and Seokjin Oh, Daejeon (KR)
Assigned to AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR)
Filed by AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR)
Filed on Mar. 19, 2024, as Appl. No. 18/609,726.
Claims priority of application No. 10-2023-0035968 (KR), filed on Mar. 20, 2023.
Prior Publication US 2024/0318615 A1, Sep. 26, 2024
Int. Cl. F02K 7/10 (2006.01); F23R 3/22 (2006.01); F23R 3/28 (2006.01)
CPC F02K 7/10 (2013.01) [F23R 3/22 (2013.01); F23R 3/286 (2013.01); F23R 3/283 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dual-mode ramjet engine, comprising:
a combustor through which air flowing in from the front passes;
a sliding injector configured to perform a sliding operation from an upper surface of the combustor along a height direction perpendicular to an air flow direction; and
a cavity-type flame holder formed behind the sliding injector on the upper surface of the combustor and having a cavity that is concavely recessed.