| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hermetic compressor that prevents the prying between a piston and a compression chamber, thereby providing high reliability and high efficiency. <P>SOLUTION: When an angle defined by an axis 141 of a large end hole 128 and an axis 142 of a small end hole 129 is represented as α and an absolute value of an inclination of a shaft 110 to a bearing 120 on the basis of the bearing and clearance of a main shaft 111 is represented as γ, α and γ satisfy a relation of 0≤α≤2.5γ. The compression chamber 115 further includes a tapered part 117 in which the inner diameter dimension thereof is increased from a side where the piston 123 is positioned at top dead center toward a side where the piston is positioned at bottom dead center. When an angle defined by an axis C of the piston and an axis D of the compression chamber while an outer peripheral surface of the piston slides along the tapered part is represented as δ, α, δ, and γ satisfy 0.3γ≤(α+δ)≤4γ. <P>COPYRIGHT: (C)2012,JPO&INPIT |
