公开(公告)号：US10662934B2

公开(公告)日：2020-05-26

申请号：US16223323

申请日：2018-12-18

Applicant: Hitachi-Johnson Controls Air Conditioning, Inc.

Inventor： Ryou Oota ,  Hiroyuki Akata ,  Yasutaka Yoshida ,  Koji Naito ,  Hideyuki Ueda

IPC: F04B39/02 ,  C09K5/04 ,  F04C29/04 ,  F04C29/02 ,  C10M107/24 ,  C10M129/18 ,  C10M137/04 ,  F25B1/04 ,  C10M171/00 ,  F04C18/02 ,  F04B39/00 ,  F04B35/04 ,  C10M129/72

Abstract: An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil.