Scroll-type fluid machinery with offset passage to the exhaust port
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United States of America Patent
Stats
-
Sep 8, 1992
Grant Date -
N/A
app pub date -
Feb 13, 1991
filing date -
Feb 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scroll-type fluid machine has an orbiting scroll with involute wraps projecting axially on each of opposite sides, a pair of stationary scrolls each with involute wraps which mate with the wraps of the orbiting scroll, and a main shaft inserted in a central axis hole of the stationary scrolls for driving the orbiting scroll in orbital movement. The internal ends of the wraps of the stationary scrolls are extended inwardly to an outer peripheral wall of a land part where the central axis hole is formed. The stationary scroll wraps are extended about a half turn longer than the wrap of the orbiting scroll and the internal ends of the wraps are almost in contact end to end at a desired phase during the orbiting movement of the orbiting scroll.
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