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Représentation paramétrique de la géométrie de spirales avec épaisseur variable des parois.

Parametric representation of scroll geometry with variable wall thickness.

Numéro : pap. 1268

Auteurs : SHAFFER B. R., GROLL E. A.

Résumé

In a scroll-type compressor, compression is achieved by relative contact between two spiral curves. Since the scroll invention by Leon Creux in (1905) multiple methods have been developed for calculating the scroll geometry and pocket volume. What can generally be considered the most classical method, is defining each scroll curve as the involute of a circle. The two sets of scroll curves are then closed by using the arc of a circle to form the tip of each spiral. In this paper, a new method to calculate the scroll geometry is introduced. By deriving each scroll curve from the radius of curvature parameterized with involute angle, a wide range of scroll involute geometries can be considered that are not included in the classical method. In addition, all possible tip conditions involved in a two arc configuration can be implemented to give a comprehensive scroll compressor geometry definition.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Parametric representation of scroll geometry with variable wall thickness.
  • Identifiant de la fiche : 30007530
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 21st International Compressor Engineering Conference at Purdue.
  • Date d'édition : 16/07/2012

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