Scroll-type fluid machinery with seals for the discharge port and wraps
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United States of America Patent
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-
Nov 2, 1993
Issued Date -
N/A
app pub date -
Jun 24, 1992
filing date -
Feb 13, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is intended to provide an oilless scroll-type compressor which can obtain a high compression efficiency with highly accurate sealability retained and particularly has such a constitution that a chip seal fitted in each of the wrap end surfaces of stationary scrolls and an orbiting scroll is integrated with a backup seal, a discharge port in communication with a wrap groove terminal end through a through-hole is formed in a land section positioned on the interior side of a wrap inner circumferential end on the side of one scroll and situated around a shaft hole through which a main shaft is inserted, and the circumference of said discharge port is surrounded by the chip seal extended from said wrap.
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