Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2020/165967
Kind Code:
A1
Abstract:
A scroll compressor is provided with a fixed scroll in which a fixed spiral body is projectingly provided on a fixed table plate and a swinging scroll in which a swinging spiral body is projectingly provided on a swinging table plate, and compresses a refrigerant inside a compression room formed when the fixed spiral body and the swinging spiral body mesh with each other. Any one of an outside curved line and an inside curved line of each of the fixed spiral body and the swinging spiral body is assumed as a curved line that is an involute of a base circle, and that is defined by formulas (1) and (2) using an involute angle θ and a base circle radius a in an x-y coordinate system. An involute arm length w(θ) in formulas (1) and (2) is a function that increases while changing into a sine wave shape or a cosine wave shape in which π[rad] is defined as one cycle with respect to the involute angle θ.
x = a・cosθ + w(θ)・sinθ …(1)
y = a・sinθ - w(θ)・cosθ …(2)
Inventors:
KAWAMURA RAITO (JP)
SEKIYA SHIN (JP)
SEKIYA SHIN (JP)
Application Number:
PCT/JP2019/005046
Publication Date:
August 20, 2020
Filing Date:
February 13, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/02
Foreign References:
| JP2017089491A | 2017-05-25 | |||
| JPH05223071A | 1993-08-31 | |||
| JPH0849670A | 1996-02-20 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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