SCROLL FLUID MACHINE - MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD

Title:

SCROLL FLUID MACHINE

Document Type and Number:

WIPO Patent Application WO/2019/163516

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a scroll fluid machine in which an intermediate-pressure refrigerant can be reliably introduced during a compression step and which can improve compressor efficiency. This scroll compressor (1) comprises a fixed scroll (18) and an orbiting scroll (19). A first region is configured in which, after sealing of a compression chamber (20) has started, capacity change of the compression chamber (20) becomes gradual or approximately constant. A wall (18b) and a wall (19b) comprise a first wall inclined section in which the height of the walls (18b), (19b) increases continuously from the outer peripheral side towards the inner peripheral side in the spiral direction. An end plate (18a) and an end plate (19a) comprise a first end plate inclined section in which a tooth bottom surface opposite of the tooth tip of the first wall inclined section is inclined in accordance with the incline of said first wall inclined section, and at least part of the first region is configured by the position and shape of the first wall inclined section and the first end plate inclined section.

Inventors:

SATO HAJIME (JP)
HOTTA YOUHEI (JP)
KIMATA YOSHIYUKI (JP)

Application Number:

PCT/JP2019/004254

Publication Date:

August 29, 2019

Filing Date:

February 06, 2019

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)

International Classes:

F04C18/02; F04C29/04

Foreign References:

JP2012533028A	2012-12-20
JP2002303281A	2002-10-18
JP2007064005A	2007-03-15
JP2006312898A	2006-11-16
JP2006312898A	2006-11-16

Other References: