Scroll compressor counterweight with axially distributed mass
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United States of America Patent
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-
Mar 19, 2019
Grant Date -
Sep 26, 2013
app pub date -
Mar 23, 2012
filing date -
Mar 23, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A scroll compressor includes first and second scroll bodies having respective bases and respective scroll ribs that project from the respective bases such that the scroll ribs mutually engage. The second scroll body is movable relative to the first scroll body for compressing fluid. A drive shaft has a longitudinal axis and an eccentric drive pin configured to engage a drive hub on the second scroll body. A counterweight has a hub portion, and a perimeter portion positioned radially outward from the hub portion. A radial axis divides the counterweight into a first and second regions. The mass of the hub portion in the first region being roughly equal to the mass of the hub portion in the second region, and the mass in the perimeter portion being distributed between the first and second regions such that the center of mass of the counterweight is located along the radial axis.
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