Design

- Reciprocating, inlet valve integrated in the piston, automatic pressure relief

- Dead volume 2 %, resistant to liquid strokes due to flexible outlet valve

- 6 pole BLDC-Motor

- Roller bearings for main shaft and piston rod

- One cylinder, bore = 25mm, stroke = 25mm, cylinder and piston are lapped

- Oil volume = 1 liter

- Weight 20 kg (state of art 120 kg), including oil, excluding motor driver

Performance

- COP = 1.9 @ evaporating -10°C, suction gas superheat = 0°C, high pressure 90 bar, gas cooler 

  outlet 36°C, COP state of art =1.5

- Cooling capacity @ 3000rpm = 5 kW based on conditions as above

- Speed control, maximum cooling capacity = 7kW, minimum cooling capacity = 1 kW, based on        conditions as above

- Efficiency = 0.8

- Delivery rate = 0.85