Scroll refrigeration compressor with confluent bypass passage and flow passage
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United States of America Patent
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Aug 4, 2015
Grant Date -
Nov 21, 2013
app pub date -
Nov 28, 2011
filing date -
Dec 16, 2010
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Abstract
The scroll compressor includes stationary and moving scrolls each including a scroll plate provided with a spiral wrap, the spiral wraps defining the variable-volume compression chambers, a separating plate mounted on the scroll plate of the stationary scroll and defining with the latter a first intermediate volume, and a delivery chamber defined by the separating plate and the sealed casing. The compressor includes a bypass passage arranged to communicate the first intermediate volume with an intermediate compression chamber, a flow passage arranged to communicate the first intermediate volume with the delivery chamber, and a bypass valve associated with the flow passage, each bypass valve associated with a flow passage mounted on the surface of the separating plate turned toward the delivery chamber and movable between closing and opening positions for closing and opening the flow passage.
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