IP Library Granted Patent US 12692455
Granted Patent B2
US 12692455 · App. 18/274,212 · Granted Jul 28, 2026

Refrigeration cycle device and compressor

Inventors: Kengo Hiratsuka (Tokyo, JP); Manami Nakamura (Tokyo, JP); Kenji Kojima (Tokyo, JP); Satoru Toyama (Tokyo, JP)
Assignee: MITSUBISHI ELECTRIC CORPORATION
C10M129/24C09K5/044C10M105/38F25B31/002C09K2205/122C09K2205/24C10M2207/08C10M2207/2835C10N2030/06C10N2030/10C10N2040/30
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12692455
App. No.
18/274,212
Granted
Jul 28, 2026
Kind
B2
Abstract

A refrigeration cycle device comprises a refrigerant, a compressor that compresses the refrigerant, and a refrigerating machine oil that lubricates a sliding part of the compressor. The refrigerant includes trifluoroiodomethane. The refrigerating machine oil includes a base oil and a quinone additive. The quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.

Claims (21)

1 . A refrigeration cycle device comprising:

a refrigerant;

a compressor that compresses the refrigerant; and

a refrigerating machine oil that lubricates a sliding part of the compressor,

wherein the compressor comprises a rotor having a neodymium magnet,

the refrigerant includes trifluoroiodomethane,

the refrigerating machine oil includes a base oil and a quinone additive, and

the quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.

2 . The refrigeration cycle device according to claim 1 ,

wherein the quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, and 1,4-anthraquinone.

3 . The refrigeration cycle device according to claim 2 , wherein the quinone additive is at least one selected from the group consisting of 1,4-naphthoquinone, 1,2-naphthoquinone, and 1,4-anthraquinone.

4 . The refrigeration cycle device according to claim 2 , wherein the quinone additive is at least one selected from the group consisting of 1,4-naphthoquinone and 1,4-anthraquinone.

5 . The refrigeration cycle device according to claim 1 , wherein the quinone additive is at least one selected from the group consisting of 1,4-naphthoquinone, 1,2-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.

6 . The refrigeration cycle device according to claim 1 , wherein the quinone additive is at least one selected from the group consisting of 1,4-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.

7 . The refrigeration cycle device according to claim 1 , wherein a proportion of an amount of the quinone additive included in the refrigerating machine oil to an amount of the refrigerating machine oil is 0.1% by mass or more and 10% by mass or less.

8 . A compressor used for a refrigeration cycle device,

wherein the refrigeration cycle device comprises a refrigerant that includes trifluoroiodomethane,

the compressor comprises a rotor having a neodymium magnet,

the compressor includes a refrigerating machine oil for lubricating a sliding part of the compressor,

the refrigerating machine oil includes a base oil and a quinone additive, and

the quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.