Welkin () is a

gas-generator cycle The gas-generator cycle is a power cycle of a pumped liquid bipropellant rocket engine. Part of the unburned propellant is burned in a gas generator (or preburner) and the resulting hot gas is used to power the propellant pumps before being exhau ...

rocket engine A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordanc ...

burning RP-1 and

liquid oxygen Liquid oxygen—abbreviated LOx, LOX or Lox in the aerospace, submarine and gas industries—is the liquid form of molecular oxygen. It was used as the oxidizer in the first liquid-fueled rocket invented in 1926 by Robert H. Goddard, an applica ...

under development by

Galactic Energy Galactic Energy () is a Chinese private space launch enterprise flying the Ceres-1 and developing the Pallas-1 and 2 orbital rockets. The company's long-term objective is to mine asteroids for rare metals and minerals. History Galactic Energy ...

. The engine features a

pintle A pintle is a pin or bolt, usually inserted into a gudgeon, which is used as part of a pivot or hinge. Other applications include pintle and lunette ring for towing, and pintle pins securing casters in furniture. Use Pintle/gudgeon sets have ma ...

type injector, a double suction coaxial split turbine pump, and a gas generator using vortex principle. The engine was built with reusability in mind and can be deep throttled to 20% and re-used up to 50 times. Galactic Energy's

Pallas-1 The Pallas-1 ( zh, s=智神星一号) is a medium-lift orbital launch vehicle under development by Galactic Energy. It features seven new 40-ton variable thrust Welkin engines burning RP-1 and liquid oxygen ( kerolox) in its first stage. The fi ...

reusable launcher will be powered by Welkin engines. Seven Welkin engines producing 280 tonnes of thrust will be powering the first stage, while the second stage will be powered by a single vacuum-optimized engine. The engine successfully completed its first full-power test in March 2022.

References

Rocket engines of China Rocket engines using kerosene propellant Rocket engines using the gas-generator cycle {{Rocket-stub