Organization:Throttleable Liquid Propulsion Demonstrator

From HandWiki

Throttleable Liquid Propulsion Demonstrator (TLPD) is a prototype liquid-propellant rocket engine under development by the Polish Lukasiewicz Research Network - Institute of Aviation (Lukasiewicz-ILOT) for ESA.[1][2] It uses storable propellant: hydrogen peroxide and ethanol and a 3D-printed combustion chamber.[3] The engine has a nominal thrust of 5 kN, and using a pintle injector, the thrust can be varied between 20% and 110%.[1] TLPD is part of ESA's Future Launchers Preparatory Programme (FLPP).[4][1] Test firings were performed in 2024[2][5] and 2025.[6] The 2025 test campaign added water cooling to the engine's combustion chamber, allowing for longer tests of up to a minute at a time.[7]

References

  1. ↑ 1.0 1.1 1.2 Variable-Thrust Rocket Engine Passes Initial Hot-Fire Tests
  2. ↑ 2.0 2.1 Promising early tests for variable-thrust landing engine
  3. ↑ 3DPrinting.com (2025-02-25). "Polish Rocket Engine With 3D Printed Combustion Chamber Achieves Successful Variable-Thrust Testing" (in en-US). https://3dprinting.com/news/polish-rocket-engine-with-3d-printed-combustion-chamber-achieves-successful-variable-thrust-testing/. 
  4. ↑ Cieśliński, Dawid; Okniński, Adam; Ranachowski, Michał; Molik, Marcin; Bartkowiak, Bartosz; Matysek, Krzysztof; Kutnik, Krystian; Gorgeri, Aleksander et al. (2025-09-01). "On development of green storable liquid rocket engine with thrust variation". Acta Astronautica 234: 560–574. doi:10.1016/j.actaastro.2025.05.020. ISSN 0094-5765. https://www.sciencedirect.com/science/article/pii/S0094576525003029. 
  5. ↑ Parsonson, Andrew (2024-08-12). "ESA and Poland Test Fire Variable-Thrust Rocket Engine" (in en-US). https://europeanspaceflight.com/esa-and-poland-test-fire-variable-thrust-rocket-engine/. 
  6. ↑ Parsonson, Andrew (2025-02-25). "Poland Completes Second Variable-Thrust Rocket Engine Test Campaign" (in en-US). https://europeanspaceflight.com/poland-completes-second-variable-thrust-rocket-engine-test-campaign/. 
  7. ↑ "Vary that thrust: longer hot-fire of Throttleable Liquid Propulsion Demonstrator" (in en). https://www.esa.int/ESA_Multimedia/Videos/2025/02/Vary_that_thrust_longer_hot-fire_of_Throttleable_Liquid_Propulsion_Demonstrator/. 



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