Linear compressor for regenerative refrigerator

Details Linear compressor for regenerative refrigerator Linear compressor for regenerative refrigerator

1999-03-12

2000-10-31

Doerrler, William

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

F25B 900

Patent

active

061384593

ABSTRACT:
The linear compressor for compressing and expanding working fluid contained in a regenerative refrigerator is composed of a compressor casing in which a pair of pistons are disposed and a plurality of electromagnets for driving the pair of pistons. A pair of rods for driving the pair of pistons are also disposed in the compressor casing, and permanent magnets are mounted on the driving rods. The plurality of electromagnets are disposed outside of the compressor casing along the axis of the driving rods so that the electromagnets face the permanent magnets. The pair of driving rods are driven by magnetic force between the permanent magnets and the electromagnets which are excited by alternating current. The linear compressor can be made small in size and heat generated in the electromagnets can be easily dissipated, because the electromagnets are disposed outside of the compressor casing.

REFERENCES:
patent: 4872313 (1989-10-01), Kazumoto et al.
patent: 5040372 (1991-08-01), Higham
patent: 5255521 (1993-10-01), Watanabe
patent: 5647217 (1997-07-01), Penswick et al.
patent: 5701743 (1997-12-01), Hagiwara et al.

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