Title:
スクロール圧縮機
Document Type and Number:
Japanese Patent JP7246479
Kind Code:
B2
Abstract:
The present invention comprises: a fixed scroll in which a first fixed-side tooth tip curved section and a second fixed-side tooth tip curved section having a larger curvature radius than the foregoing first section are formed on a tooth tip of a scroll tooth, and in which a fixed-side root curved section is formed in a root section on a fixed table plate side of the scroll tooth; and a rocking scroll in which a rocking-side tooth tip curved section is formed on a tooth tip of the scroll tooth, and in which a first rocking-side root curved section and a second rocking-side root curved section having a larger curvature radius than that the foregoing first section are formed in a root section on a rocking table plate side of the scroll tooth. The second fixed-side tooth tip curved section and the second rocking-side root curved section are formed, in a scroll tooth of each scroll, in at least a part of or an entirety of a range including: a first arc section extending from a center-side end point of an outer involute curve toward a scroll center; and a second arc section extending from a center-side end point of an inner involute curve toward the scroll center. Due to this configuration, refrigerant leakage can be reduced while sufficiently ensuring fatigue strength at the center of the scroll tooth, and the compression efficiency can be improved while ensuring reliability.
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Inventors:
Kotou Ukai
Kenji Yano
Tomohisa Matsui
▲高▼村 祐司
Koichi Fukuhara
Kenji Yano
Tomohisa Matsui
▲高▼村 祐司
Koichi Fukuhara
Application Number:
JP2021528727A
Publication Date:
March 27, 2023
Filing Date:
June 26, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F04C18/02
Domestic Patent References:
| JP61076185U | ||||
| JP2008309020A | ||||
| JP10122167A | ||||
| JP2001055989A | ||||
| JP6101665A |
Attorney, Agent or Firm:
Patent Attorney Corporation Kisa Patent and Trademark Office