Hermetic compressor having a valve to drain liquid accumulations from its cylinder head
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United States of America Patent
Stats
-
Nov 3, 1981
Grant Date -
N/A
app pub date -
Jan 10, 1980
filing date -
Jan 10, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hermetic compressor having an upper portion 12 and a lower portion 16 is provided with a motor 20 in its upper portion with a vertical crankshaft 22 extending down into the lower portion and driving a plurality of pistons 28, 30 in cylinders 24, 26 arranged radially around the crankshaft, each cylinder having a cylinder head 38 radially outwardly of the discharge valve 36, and at least the lowermost cylinder head 38 being provided with a spring-loaded drain valve 44 which opens upon the differential pressure between the inside of the cylinder head and the suction space in the compressor dropping below a given value during periods of non-operation of the compressor to drain an accumulation of liquids in the cylinder head.
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