Th CE-20 is a cryogenic rocket engine being developed by India. The CE-20 engine is being developed by the Liquid Propulsion Systems Centre, a subsidiary of ISRO. It is being developed to power the upper stage of the Geosynchronous Satellite Launch Vehicle III. It is the first Indian cryogenic engine to feature a gas-generator cycle.
The CE-20 is the first Indian cryogenic engine to feature a gas-generator cycle. The engine produces a nominal thrust of 200 kN, but has an operating thrust range between 180 kN to 220 kN and can be set to any fixed values between them. The combustion chamber burns liquid hydrogen and liquid oxygen at 6 MPa with 5.05 engine mixture ratio. The engine has a thrust-to-weight ratio of 34.7 and a specific impulse of 444 seconds in vacuum.
As of 2008, the subsystem level tests were nearing completion and engine tests were planned during 2010. Majority of the facility realization across different launch vehicle centers and industries had been completed.