Birch, Stewart, Kolasch & Birch LLP
Scroll compressor including fixed and orbiting scrolls having different heights and surface hardenings
A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
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Hajime Takayuki Kazuhide Katsuhiro Takayuki Makoto Genta
Sato Kuwahara Watanabe Fujita Hagita Takeuchi Yoshikawa