Linear compressor

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A linear compressor is a gas compressor where the piston moves along a linear track to compress to minimize energy loss during conversion.


The first linear compressors were developed in 1973,[1][2] the first market introduction of a linear compressor to compress refrigerant in a refrigerator was in 2001.[3]

Valved linear compressor[edit]

The single piston linear compressor uses dynamic counterbalancing, where an auxiliary movable mass is flexibly attached to a movable piston assembly and to the stationary compressor casing using auxiliary mechanical springs with zero vibration export at minimum electrical power and current consumed by the motor.[4] It is used in cryogenics.[5]

Linear compressors are used in LG and Kenmore refrigerators. Compressors of this type have less noise, longer life, and are more energy efficient than conventional refrigerator compressors. [6]

See also[edit]


  1. ^ Linear Compressor history[dead link]
  2. ^ Linear DOS[dead link]
  3. ^ A home refrigerator with a Sunpower linear compressor
  4. ^ Valved linear compressor[dead link]
  5. ^ Development of a valved linear compressor for a satellite borne J–T cryocooler
  6. ^