Registre Brevet WIPO
Numéro d'application JP2019015100
Numéro de publication 2020/202544
Statut Délivré - en vigueur
Date de dépôt 2019-04-05
Date de publication 2020-10-08
Inventeur(s) Watanabe Keigo


This hermetic rotary compressor comprises a crankshaft, an electric motor section that causes the crankshaft to rotate, a compression mechanism section driven by the crankshaft, and a hermetic container within which the aforementioned components are accommodated. The compression mechanism section is provided with a roller driven by the crankshaft, a cylinder in which the roller moves eccentrically, a vane that is provided to the cylinder and that comes into contact with the roller and partitions a compression chamber into an intake-side space and a compression-side space, a vane-accommodating groove that is provided to the cylinder and that accommodates the vane, and a spring that urges the vane in the direction of the roller. The vane is provided with a center protrusion that is provided to a rear surface of the vane and that is for positioning the spring, and end-side protrusions respectively provided to the rear-surface-side ends of the vane on both sides of the center protrusion. The end-side protrusions respectively provided on both sides of the center protrusion are formed extending further radially outward in comparison to the center protrusion.

Classes IPC  ?

  • F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member