Linear compressor
This article needs additional citations for verification. (September 2014) |
A linear compressor is a
History
A number of patents for linear compressors powered by free-piston engines were issued in the 20th century, including:
- To Brown, Boveri & Cie, GB191215963, published 1913-10-08[2]
- To Hugo Junkers, CA245708, published 1924-12-30[2]
- To Raúl Pateras Pescara, US1615133, published 1927-01-18[2]
The first market introduction of a linear compressor to compress refrigerant in a refrigerator was in 2001.[3]
Valved linear compressor
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.
Linear compressors are made by LG and used in LG and Kenmore refrigerators. Linear compressors were also announced by Embraco.[6][7] Compressors of this type have less noise, and are more energy efficient than conventional refrigerator compressors. The Embraco linear compressors are also claimed to be oil-free. In the 2010s and 2020s, multiple lawsuits in the United States alleged that the LG compressors had a high rate of failure or lack of expected cooling. As of 2024, there were settlements[8] and ongoing cases.[9]
See also
- Booster pump – Machine to increase pressure of a fluid
- Hydrogen compressor – Device to increase pressure of hydrogen gas
- Liquid hydrogen – Liquid state of the element hydrogen
- Timeline of low-temperature technology
- Timeline of hydrogen technologies
- Scroll compressor
References
- .
- ^ a b c "Espacenet : Original document". Worldwide.espacenet.com. Retrieved 5 November 2017.
- ^ "Problems 4.7 - A Home Refrigerator (updated 3/15/13)". Ohio.edu. Retrieved 5 November 2017.
- ^ .
- ^ "Linear compressor".
- ^ "Oil-less linear compressor launched". Cooling Post. 2014-03-20. Retrieved 2024-02-28.
- ^ "Embraco claims oil-less compressor breakthrough".
- ^ Wroclawski, Daniel (2020-09-17). "LG Settles Class-Action Lawsuit Over Refrigerator Compressors". Consumer Reports. Retrieved 2024-02-28.
- ^ Roher, Christine; Johnson, Carolyn (2023-12-19). "People say pricey refrigerator compressors are conking out within a few years, sometimes just months". NBC Los Angeles. Retrieved 2024-02-28.
External links
- Blain, Loz (2021-11-03). "Super-efficient linear compressor could vastly reduce air con power use". New Atlas. Retrieved 2021-11-04.