ROTARY COMPRESSOR
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United States of America Patent
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Issued Date -
Mar 31, 2011
app pub date -
Sep 24, 2010
filing date -
Sep 28, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The eccentric on the crankshaft of a rotary compressor, as well as the roller that surrounds the crankshaft, is replaced by an elliptical cam that acts as a double eccentric. In this manner, the elliptical cam provides for proper balancing of the crankshaft and other components of the compressor, while eliminating the need to use counterweights. Specifically, the elliptical cam is symmetrical, resulting in equal forces acting on opposing sides of the elliptical cam. This allows the elliptical cam to maintain its balance throughout its rotation, even when operating at a high rate of revolution.
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