HERMETIC TYPE COMPRESSOR AND FREEZER
PROBLEM TO BE SOLVED: To provide a hermetic type compressor which enables improvement of discharge efficiency while securing strength of a bottom surface of a recessed part of a valve plate and thereby achieves high efficiency.SOLUTION: A refrigerant gas guide part 167 formed by a side wall having a...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a hermetic type compressor which enables improvement of discharge efficiency while securing strength of a bottom surface of a recessed part of a valve plate and thereby achieves high efficiency.SOLUTION: A refrigerant gas guide part 167 formed by a side wall having a curved surface is formed in a recessed part 165 formed in a valve plate 143 so as to guide a refrigerant gas 111 from the recessed part 165 to a discharge space 149. The refrigerant gas guide part 167 allows the refrigerant gas 111, which is discharged from a compression chamber 133 passing through a discharge hole 141, to smoothly flow along the refrigerant gas guide part 167 to the discharge space 149 without widening a bottom surface of the recessed part 165. Thus, the structure reduces deformation of the bottom surface of the recessed part 165 of the valve plate 143 and improves the volumetric efficiency and the efficiency of a hermetic type compressor.SELECTED DRAWING: Figure 3
【課題】バルブプレートの凹部の底面の強度を確保しながら、吐出効率を高めることで、効率の高い密閉型圧縮機を提供する。【解決手段】バルブプレート143に形成された凹部165に、凹部165から吐出空間149へ冷媒ガス111を導くように湾曲面の側壁で構成された冷媒ガス誘導部167を形成している。これにより、凹部165の底面を広げなくても、冷媒ガス誘導部167によって圧縮室133から吐出孔141を通過して吐出された冷媒ガス111を、冷媒ガス誘導部167に沿ってスムーズに吐出空間149に流出させることができ、バルブプレート143の凹部165の底面の変形を低減することとなり、体積効率を向上させることができ、密閉型圧縮機の効率を向上させることができる。【選択図】図3 |
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