COMPRESSOR AND AIR CONDITIONER

Registre Brevet WIPO
Numéro d'application JP2019044481
Numéro de publication 2021/095151
Statut Délivré - en vigueur
Date de dépôt 2019-11-13
Date de publication 2021-05-20
Propriétaire HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)
Inventeur(s)
  • Adachi Takamasa
  • Ota Hiroki
  • Tasaka Shun
  • Murakami Akihiro

Abrégé

Provided are a compressor and the like in which outflow of lubricating oil is suppressed. A compressor (100) is provided with: an electric motor (7) including a stator (7a) and a rotor (7b); a crankshaft (4) which rotates integrally with the rotor (7b); a compression mechanism unit (2) which compresses a refrigerant concomitant with the rotation of the crankshaft (4); an arc-shaped or cylindrical balance weight (12) situated on the rotor (7b); and a hermetically sealed container (1) in which the lubricating oil is sealed. The balance weight (12) has a plurality of notched portions which are recessed radially inward from an outer circumferential surface, wherein the plurality of notched portions are each provided in the circumferential direction of the balance weight (12), and open in a space (G1) inside the hermetically sealed container (1).

Classes IPC  ?

  • F04C 29/02 - Lubrication; Lubricant separation 
  • F04B 39/04 - Measures to avoid lubricant contaminating the pumped fluid
  • F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents