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Vérification des hautes performances de lubrification dues au roulement de type précession (precession-rolling) dans un palier de butée à pleine charge dans un compresseur à spirale de forte puissance.

Verification of high-performance lubrication due to precession-rolling in a fully loaded thrust-slide bearing in a large capacity scroll compressor.

Numéro : 1198

Auteurs : TAKEDA J., YOSUKE Y., KITAURA H., ANAMI K., ISHII N.

Résumé

The large capacity scroll compressor, the subject of this research, adopts an axial compliance structure in which the housing is floated by gas compression pressure to push the orbiting scroll against the fixed scroll, where the small size and high efficiency are achieved. The thrust slide bearing is formed by the housing and the orbiting scroll. This thrust slide bearing has been operated normally under high load conditions under R 32 refrigerant. The lubrication mechanism in the thrust slide bearing was verified, focusing on the oil film pressure due to precession-rolling motion, which has been derived by Anami et al. (2024a). FEM simulations were conducted on the compression mechanism components that form the thrust slide bearing of the large capacity scroll compressor, under actual contact and gas compression conditions, thus addressing the 3D elastic deformation and orientation of the thrust slide bearing relative to the top surface of the housing. The oil film pressure was then calculated, where the lubrication mechanism due to the precession-rolling motion of the thrust slide bearing was applied. The calculation results were compared with the numerical ones of the conventional wedge oil film pressure due to sliding motion. As a result, it was shown that the lift force due to the precession-rolling motion is far larger than that due to the wedge sliding motion.

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Pages : 8

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Détails

  • Titre original : Verification of high-performance lubrication due to precession-rolling in a fully loaded thrust-slide bearing in a large capacity scroll compressor.
  • Identifiant de la fiche : 30033164
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Date d'édition : 18/07/2024

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