Jump to content

YF-100

From Wikipedia, the free encyclopedia
Not to be confused with YF-100, the prototype number for theNorth American F-100 Super Sabre.
YF-100
YF-100 rocket engine
Country of originChina
First flightLong March 6 inaugural flight(2015-09-20)
DesignerAcademy of Aerospace Liquid Propulsion Technology
AssociatedLVLong March 5,Long March 6andLong March 7
PredecessorRD-120
StatusIn service
Liquid-fuel engine
PropellantLOX/RP-1
Mixture ratio2.6 (±10%) (adjustable)
CycleOxidizer-richstaged combustion cycle
Configuration
Chamber1
Nozzle ratio35
Performance
Thrust, vacuum1,340 kN (300,000 lbf)
Thrust, sea-level1,200 kN (270,000 lbf)
Throttle range65%~105%[1]
Chamberpressure18 MPa (2,600 psi)
Specific impulse,vacuum335 seconds (3.29 km/s)
Specific impulse,sea-level300 seconds (2.9 km/s)
Burn time155 s (estimated)
Dimensions
Diameter1.338 metres (52.7 in)
Used in
Long March 5K-3-1 and K-2-1 boosters,Long March 6,Long March 6AandLong March 6Cfirststage andLong March 7,Long March 7A,Long March 8andLong March 8Afirst stage and boosters.
References
References[2][3][4][5][6]

TheYF-100is aChineseliquidrocket engineburningLOXandkerosenein an oxidizer-richstaged combustion cycle.[2]

Development of the engine began in the 2000s, along with its sibling, the smallerYF-115,which would power the upper stages of theLong March 6andLong March 7rockets.[7][8][9]Testing was directed by the China National Space Administration (CNSA) commencing in 2005. Development works are mainly carried out by the Xi'an Aerospace Propulsion Institute. The engine had its first 300 seconds test fire in November 2007.[10]

A high efficiency/high thrust environmentally-friendly rocket engine was always an objective withinProgramme 863in the 1980s; however, Chinese industry was not mature enough at that time to produce such a rocket until they obtainedRD-120sin early 1990 from Russia following the collapse of the USSR.[7] It is the first Chinese rocket engine to adopt the staged-combustion cycle and the most powerful to date. During July 2012 the engine fired for 200 seconds generating 120 t (260,000 lb) of thrust.[11]On May 28, 2012, the National Defense Science and Industry Bureau certified the engine.[12]

The engine is designed for use on thefirst stageof the Chinese government's new generation of launch vehicles, theLong March 5,theLong March 6and theLong March 7.[7][8][9]The engine's maiden flight, on the Long March 6, took place on September 20, 2015.

Technical Description

[edit]

The YF-100 is apump-fedoxidizer richstaged combustionrocket engine. It has adjustable thrust and variablemixture ratio.Its preburner burns all theLOXmass flow with a bit ofkeroseneto generate hot gas that powers the single turbine. The turbopump is a single-shaft design, with a single-stage oxygen pump and a dual-stage kerosene pump driven by the same turbine. It also has two low-pressure pumps that preventcavitation.This arrangement is very similar to theRD-170design. The engine has a heat exchanger to heat oxygen gas for LOX tank pressurization, and also supplies high-pressure kerosene as hydraulic fluid for thethrust vector controlactuators.[13]

The development required ten years of research, requiring the mastering of 70 key technologies, the development of 50 new materials, and the construction of 61 sets of engines with a combined total of more than 40,000 seconds of ignition time by 2013.[12]

Versions

[edit]
YF-100K displayed at Airshow China 2018
YF-100K displayed atAirshow China2018

At least five different versions are known to exist.

  • YF-100(single-axisTVC): Version for theLM-5andLM-7boosters. This version of TVC has a single axis of gimbal.
  • YF-100(dual-axis TVC): Version for theLM-7core. This version TVC has a dual-axis gimbal.
  • YF-100GBI:A version used on theLM-6.Due to the rocket's single nozzle, a dual-axis gimbal can not control the rocket's roll. Therefore, this version of the engine diverts a portion of the preburner exhaust through two roll control nozzles on opposite sides of the launch vehicle at the expense of losing 0.30% of thrust and 0.79% ofispwhile theO/Fis increased by 0.12%.[14]
  • YF-100K:an uprated version of YF-100 used on the first stage cores of the futureLong March 12andLong March 10.[15]
  • YF-100M:similar to the YF-100K but optimized for vacuum operation; a pair of YF-100M's will be used on the second stage of theLong March 10.[16]

See also

[edit]
  • LM-5– Rocket family that uses the YF-100.
  • LM-6– Rocket family that uses the YF-100.
  • LM-7– Rocket family that uses the YF-100.
  • YF-115– Upper stage Chinese rocket engine based on the YF-100 technology.
  • RD-120– Soviet rocket engine.
  • RD-801– Ukrainian rocket engine with very similar characteristics.

References

[edit]
  1. ^Tan, Yonghua; Du, Feiping; Chen, Jianhua; Zhang, Miao (2018)."Dịch oxy dầu hoả cao áp bổ châm tuần hoàn động cơ chiều sâu biến đẩy mạnh lực lượng hệ thống phương án nghiên cứu - Trung Quốc biết võng".Journal of Propulsion Technology ( đẩy mạnh kỹ thuật )(39).doi:10.13675/j.cnki.tjjs.2018.06.001.Retrieved23 February2021.
  2. ^ab"Chinese YF-100 (Russian RD-120) to Power CZ-5".SPACEPAC, The Space Public Affairs Committee. Archived fromthe originalon 2017-10-25.Retrieved2015-07-02.
  3. ^"Trung Quốc tân một thế hệ dịch oxy dầu hoả động cơ 3: YF100/115 chủ yếu đặc tính - thâm không võng".shenkong.net(in Chinese). Archived fromthe originalon 2016-03-04.Retrieved2016-04-11.
  4. ^Gunter Dirk Krebs."CZ-5 (Chang Zheng-5)".Gunter's Space Page.Retrieved2015-07-02.
  5. ^Gunter Dirk Krebs."CZ-6 (Chang Zheng-6)".Gunter's Space Page.Retrieved2015-07-02.
  6. ^Gunter Dirk Krebs."CZ-7 (Chang Zheng-7)".Gunter's Space Page.Retrieved2015-07-02.
  7. ^abc"Chang Zheng-5 (Long March-5)".SinoDefence. Archived fromthe originalon 2015-07-03.Retrieved2015-07-02.
  8. ^ab"Chang Zheng-6 (Long March-6)".SinoDefence.Retrieved2015-07-02.
  9. ^ab"Chang Zheng-7 (Long March-7)".SinoDefence.Retrieved2015-07-02.
  10. ^"Trung Quốc kiểu mới 120 tấn dịch oxy dầu hoả hỏa tiễn động cơ đã thử xe thành công"[China's new 120 tons of liquid oxygen kerosene rocket engine has been successfully fired] (in Chinese). 2005-11-09.Retrieved2015-07-02.
  11. ^Zach Rosenberg (2012-07-30)."China completes longest hot-fire engine test for Long March 5 core stage".Flightglobal - Aviation Connected.Retrieved2015-07-02.
  12. ^ab"120 tính bằng tấn dịch oxy dầu hoả động cơ hạng mục nghiệm thu"[120-ton liquid oxygen kerosene engine project acceptance] (in Chinese).CASC.2012-06-01.Retrieved2015-07-02.
  13. ^"YF-100".astronautix.RetrievedDecember 11,2022.
  14. ^ZHANG, Wei-dong; WANG, Dong-bao (2016).Tân một thế hệ nhiệt độ thấp chất lỏng nhanh chóng phóng ra tên lửa vận chuyển và phát triển[New Generation Cryogenic Quick Launching Launch Vehicle and Development](PDF).Aerospace Shanghai(in Chinese) (33). China Academic Journal Electronic Publishing House: 1–7.doi:10.19328/j.cnki.1006-1639,2916.S1.001.Retrieved18 July2016.
  15. ^Jones, Andrew (17 December 2021)."China's new rocket for crewed moon missions to launch around 2026".SpaceNews.Retrieved19 December2021.
  16. ^Jones, Andrew (31 October 2022)."China tests engines for moon mission rocket".SpaceNews.Retrieved18 May2024.
[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=YF-100&oldid=1224586222"