Guided-rotor compressor

The guided-rotor compressor (GRC) is a positive-displacement rotary gas compressor. The compression volume is defined by the trochoidally rotating rotor mounted on an eccentric drive shaft with a typical 80 to 85% adiabatic efficiency.

The development of the GRC started in 1990 to minimize the use of compressor valve plates and springs by using simple inlet/discharge ports.

The guided-rotor compressor is under research as a hydrogen compressor for hydrogen stations and hydrogen pipeline transport.

• Liquid-ring pump – Type of rotating positive-displacement pump.
• Rotary-screw compressor – Gas compressor using a rotary positive-displacement mechanism
• Rotary vane pump – Positive-displacement pump consisting of vanes mounted to a rotor that rotates inside a cavity