Linear compressor for regenerative refrigerator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 31, 2000
Grant Date -
N/A
app pub date -
Mar 12, 1999
filing date -
Feb 5, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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