Title:
SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2023037136
Kind Code:
A
Abstract:
To provide a scroll compressor, etc. having high efficiency and high reliability.SOLUTION: An end plate surface 21f of a fixed scroll 21 of a scroll compressor is provided with an annular back pressure groove G3 communicating with a back pressure chamber, and an arc-shaped first groove G1 and an arc-shaped second groove G2 are provided inside the back pressure groove G3 in a radial direction. A turning scroll is provided with a first hole and a second hole for guiding lubricating oil from an oil supply passage to the side of the end plate surface 21f of the fixed scroll 21. At least a portion of a movement locus of an opening of the first hole is included in the first groove G1. At least a portion of a movement locus of an opening of the second hole is included in the second groove G2. The first groove G1 and the second groove G2 overlap at least partially in the radial direction.SELECTED DRAWING: Figure 4
Inventors:
MATSUNAGA KAZUYUKI
IIJIMA RYOTA
IIJIMA RYOTA
Application Number:
JP2021143695A
Publication Date:
March 15, 2023
Filing Date:
September 03, 2021
Export Citation:
Assignee:
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
International Classes:
F04C18/02
Attorney, Agent or Firm:
Patent Attorney Corporation Isono International Patent and Trademark Office
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