1. Company Profile
Jiuzhou Cloud Arrow (Beijing) Space Technology Co., Ltd. is a commercial aerospace enterprise integrating liquid power system design and development, assembly testing, and supporting flight full-process services. The company’s business model mainly includes: one-time sales of liquid rocket engines or launch service fees for reusable engines (including the 10-ton “Lingyun” and 80-ton “Longyun” engines); external testing services at the hot test base (a self-built test bed in Bengbu, Anhui, which can provide testing services for engines over 100 tons) and the civilian transformation of liquid rocket engine technology (including the substitution of imported products such as high-speed pumps, low-temperature and high-pressure valves and combustion devices).
2. Introduction to the founder
Ji Fenglai: Graduated with a master’s degree from the First Academy of Aerospace Science and Technology. He has worked in the First and Sixth Academy of Aerospace Science and Technology Group for more than 10 years. He has been engaged in liquid rocket engine turbine pump design for five years and participated in the development of YF-75 and YF-75D.
3. Company layout
Headquarters: Located in Beijing Economic and Technological Development Zone, Beijing, it is used for the design and research and development of liquid power systems.
Intelligent manufacturing base: Located in Bengbu City, Anhui Province, it has a general assembly and testing center and an intelligent manufacturing center. The assembly and testing center is used for standardized assembly and testing of complete engines and components, and the intelligent manufacturing center is used for the implementation of key processes and procedures.
4. Product Type Spectrum
The technical basis for liquid rocket recovery and reuse is: engine reusability, multiple starts, and depth variable thrust. Jiuzhou Yunjian currently has two engine products, namely the 10t-level “Lingyun” liquid oxygen methane engine and the 80t-level “Longyun” liquid oxygen methane engine.
(1) “Lingyun” liquid oxygen methane engine “Lingyun” liquid oxygen methane engine is the first domestic liquid engine product with multiple starts, depth variable thrust capabilities, and support for rocket recovery and reuse. It mainly serves the ground stage of small liquid rockets and the upper stages of medium-sized liquid rockets.
thrust
(sea level)
thrust
(vacuum)
specific impulse
(sea level)
specific impulse
(vacuum)
Maximum swing angle
Thrust adjustment
scope
Ability to start multiple times in a single mission
Number of reuses
100kN
116.5kN
288s
355s
±8°
20%-105%
≥3 times
≥50 times
At present, the cumulative hot test time of the “Lingyun” engine has exceeded 10,000 seconds. Breakthrough technology: The main and auxiliary dual-circuit fire torque electric ignition starter is used to achieve multiple starts; the pump-type liquid rocket engine depth thrust adjustment technology is used to realize variable depth thrust adjustment; the full nitrogen use and maintenance technology is used, which is different from the traditional helium mode, effectively reducing the use and maintenance costs of the engine. (2) “Longyun” liquid oxygen methane engine “Longyun” liquid oxygen methane engine is the first multiple-start, recyclable, high-thrust liquid rocket engine launched by Jiuzhou Yunjian. It can be used as the first-stage main thrust engine of medium and large liquid launch vehicles. The parallel connection of 5 machines is used for 3.35m diameter rockets, the parallel connection of 7 machines is used for 3.8m diameter rockets, and the parallel connection of 9 machines is used for 4.2m diameter rockets. At present, the “Longyun” engine has completed 7,000s of hot test runs.
thrust
(sea level)
thrust
(vacuum)
specific impulse
(sea level)
specific impulse
(vacuum)
Maximum swing angle
Thrust adjustment
scope
Ability to start multiple times in a single mission
Number of reuses
676kN
704kN
290s
350s
±8°
32%-106%
≥3 times
≥50 times
5. Financing situation
In early 2018, it completed an angel round of financing of nearly 20 million yuan. The main investors include Shanghai Fengrui, Shenzhen Runhong, and Asia Yaolong.
In January 2021, it completed a Series A financing of over 100 million yuan, led by Beijing Zhongguancun Development Qihang Innovation Investment Fund, followed by Yunhe Capital, Zhongguancun Development Group Golden Seed Fund, and Ori Capital.
Extended reading:
1. Classify engines according to propellant, which can be mainly divided into liquid oxygen kerosene engines and liquid oxygen methane engines. The current mainstream engines are liquid oxygen and kerosene engines. The liquid oxygen methane engine has the characteristics of high combustion stability, strong adaptability to variable thrust in a wide range, and no coking or carbon deposits in the combustion products, which is beneficial to the frequent use and maintenance of the engine and rocket.
2. On June 23, 2024, the Longyun liquid oxygen methane engine developed by Jiuzhou Yunjian completed the 10km-level flight recovery experiment at the Jiuquan Space Launch Site. At the end of 2024, Beijing Jianyuan Technology Co., Ltd. will carry out sea splash recovery tests equipped with Jiuzhou Yunjian’s Longyun engine.
