Linear compressor controller

Details Linear compressor controller Linear compressor controller

2006-03-30

2009-11-17

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S044110

Reexamination Certificate

active

07618243

ABSTRACT:
A free-piston linear compressor (1) controlled to achieve high volumetric efficiency by a controller including an algorithm (116) for ramping up input power until piston-cylinder head collisions are detected using a detection algorithm (117/118) which then decrements power input whereupon input power is again ramped up by algorithm (116). Non-damaging low energy collisions are achieved by the controller including a perturbation algorithm (119) which perturbates the input power ramp with periodic transient pulses of power to ensure piston collisions are provoked during the transient power pulses.

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