发明授权
US06659745B2 Scroll compressor having different tip clearances for spiral bodies having different heights 有权
具有不同高度的螺旋体的螺旋压缩机具有不同的顶端间隙

  • 专利标题: Scroll compressor having different tip clearances for spiral bodies having different heights
  • 专利标题(中): 具有不同高度的螺旋体的螺旋压缩机具有不同的顶端间隙
  • 申请号: US10198992
    申请日: 2002-07-22
  • 公开(公告)号: US06659745B2
    公开(公告)日: 2003-12-09
  • 发明人: Katsuhiro FujitaMakoto Takeuchi
  • 申请人: Katsuhiro FujitaMakoto Takeuchi
  • 优先权: JP2001-222736 20010724
  • 主分类号: F04C1804
  • IPC分类号: F04C1804
Scroll compressor having different tip clearances for spiral bodies having different heights
摘要:
An object of the present invention is to provide a scroll compressor which can improve the decrease in the compression ratio due to the leakage of compressed gas via a tip clearance between adjacent compression chambers, which can be assembled with fewer processes, and which can be manufactured at a low cost. In order to achieve the object, the present invention provides: a scroll compressor comprising a fixed scroll member which is fixed in position and has a spiral wall body provided on one surface of an end plate; an orbiting scroll member which has a spiral wall body provided on one surface of an end plate, being supported by engaging the spiral wall bodies so as to orbit and revolve around the fixed scroll member without rotation; the spiral wall bodies of the fixed scroll member and the orbiting scroll member each comprise a step portion which divides a top edge of the spiral wall body into plural parts forming a low top edge at the center and a high top edge at the outer end of the spiral wall body; and the end plates of the fixed scroll member and the orbiting scroll member each comprise a step portion which divides the end plate into a high part at the center and a low part at the outer end of the end plate; wherein at least one of a clearance between the high part of the end plate of the fixed scroll member and the low top edge of the spiral wall body of the orbiting scroll member, and a clearance between the high part of the end plate of the orbiting scroll member and the low top edge of the spiral wall body of the fixed scroll member is a fixed value.
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