Scroll fluid machine having fixed scroll including flange containing groove opposite the orbiting scroll that absorbs deformation due to expansion of the end plate
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United States of America Patent
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Sep 6, 2016
Grant Date -
Jul 26, 2012
app pub date -
Jan 18, 2012
filing date -
Jan 26, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A scroll fluid machine includes: a casing; a fixed scroll having an end plate, a spiral wrap part provided on the end plate, and a flange provided outside the wrap part and fitted to the casing; and an orbiting scroll having an end plate and a spiral wrap part provided on the end plate with a plurality of compression chambers formed in a space up to the wrap part of the fixed scroll, which is provided to perform an orbiting motion, wherein the flange is provided with a deformation absorbing part which absorbs deformation due to thermal expansion of the end plate. The scroll fluid machine is improved in reliability while the compression efficiency is maintained by preventing the fixed scroll and the orbiting scroll from coming into contact with each other without increasing a clearance between the wrap parts of both scrolls.
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