Westerman, Hattori, Daniels & Adrian, LLP.
Scroll compressor with bypass holes communicating with an intake chamber
A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A spiral wall of the second scroll has a step that separates an elevated portion and a recessed portion of the wall. A first bypass hole is provided in the elevated portion of the surface of the first scroll. A second bypass hole is provided in the recessed portion of the surface of the first scroll. The second bypass hole is within 360 degrees toward a center of the spiral of the first scroll from an outer end of the spiral. The first bypass hole is within 360 degrees from the second bypass hole toward the center of the spiral.
Mitsubishi Heavy Industries, Ltd.
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Tetsuzo Masaaki Makoto
Ukai Tokuda Takeuchi