SCROLL COMPRESSOR - MITSUBISHI ELECTRIC CORP

Title:

SCROLL COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2015/040720

Kind Code:

A1

Abstract:

This scroll compressor is a scroll compressor for compressing a fluid by means of a compression chamber that is formed by combining the spiral of a stationary scroll with the spiral of an orbiting scroll, and is characterized in that the spiral of the stationary scroll and the spiral of the orbiting scroll are respectively equipped with a bulb-shaped spiral starting section where multiple arcs connect between a point where an outward surface involute curve starts to expand and a point where an inward surface involute curve starts to expand, at least one of the spiral starting sections is formed into an n-stepped shape wherein n (n ≥ 3) bulb shapes are stacked together in the erecting direction of the spiral, and when the angles of the outward surface involution curve at the expansion starting points of the respective steps of the step-shaped spiral starting section are denoted as φos (0), φos (1), φos (2), …, and φos (n-1) in order from the tooth tip side toward the tooth base side, the angles have the relationship of φos (0) > φos (1) > φos (2) … > φos (n-1).

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Inventors:

KAKUDA MASAYUKI (JP)
TATSUWAKI KOHEI (JP)
OKAMOTO MASAYA (JP)
FUKUHARA KOICHI (JP)
ISHIZONO FUMIHIKO (JP)
SUGAWA MASAAKI (JP)

Application Number:

PCT/JP2013/075341

Publication Date:

March 26, 2015

Filing Date:

September 19, 2013

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F04C18/02

Foreign References:

JP2003049785A	2003-02-21
JP2004076629A	2004-03-11
JPH0968177A	1997-03-11
JP2006257941A	2006-09-28
JPH03264789A	1991-11-26
JPH0968177A	1997-03-11

Other References: