Study on Leakage Reduction of Three-Dimensional Scroll Compressor

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  • 三次元スクロール圧縮機の漏れ低減に関する研究
  • サンジゲン スクロール アッシュクキ ノ モレ テイゲン ニ カンスル ケンキュウ

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<p>This paper describes leakage loss reduction of three-dimensional scroll for the purpose of further efficiency improvement of scroll compressor. The shape of three-dimensional scroll, which leads to reduction of loss in step clearances peculiar to the conventional three-dimensional scroll, was examined, and a new structure was proposed in which the wrap height can be continuously changed by inclining scroll tip and end plate in a slope shape. The new three-dimensional scroll realizes high efficiency by eliminating leakage from the step clearances, and inherits advantages of the conventional three-dimensional scroll, high compression ratio, high strength, large capacity and small size. As a result of performance and cylinder pressure measurement of the prototype new three-dimensional compressor, it was confirmed that an appropriate range of slope angle exists in order for maintaining high efficiency, and that adiabatic efficiency was improved by up to 4.8% by reduction of leakage loss.</p>

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