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http://dx.doi.org/10.6108/KSPE.2022.26.2.060

High Pressure Spray and Combustion Characteristics of Throttleable Pintle Injector  

Kim, Dae Hwan (Department of Aerospace Engineering, Seoul National University)
Heo, Subeom (Department of Aerospace Engineering, Seoul National University)
Kim, Inho (Department of Aerospace Engineering, Seoul National University)
Hwang, Donghyun (School of Mechanical Engineering, Chungbuk National University)
Kang, Cheolwoong (School of Mechanical Engineering, Chungbuk National University)
Lee, Shinwoo (School of Mechanical Engineering, Chungbuk National University)
Ahn, Kyubok (School of Mechanical Engineering, Chungbuk National University)
Yoon, Youngbin (Institute of Advanced Aerospace Technology, Seoul National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.26, no.2, 2022 , pp. 60-71 More about this Journal
Abstract
The reusable, low-cost launch vehicle development trend in the recent launch vehicle market is being subdivided into several ways, and the throttleable engine is one of them. Plus, several nations have selected methane as a next-generation propellant due to its cleanness. In this research, a throttleable pintle injector using gas methane and liquid oxygen as propellants was developed, followed by its spray and combustion characteristics analysis, including high pressure cold and hot tests. The designed throttleable pintle injector has a double sleeve structure, and its tightness and functionality are confirmed through repetitive atmospheric, high-pressure cold tests, and hot tests. Though some design errors were discovered and a low throttling level was unable to be achieved in the combustion test.
Keywords
Methane Engine; Liquid Rocket Engine; Pintle Injector; Double Sleeve; Total Momentum Ratio;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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