公开(公告)号：US20200149520A1

公开(公告)日：2020-05-14

申请号：US16609072

申请日：2018-04-26

Applicant: Panasonic Appliances Refrigeration Devices Singapore ,  PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shingo OYAGI ,  Hirotaka KAWABATA ,  Hiroto HAYASHI

IPC: F04B39/02 ,  F04B35/04

Abstract: A sealed refrigerant compressor (100) includes: a compression element (107) accommodated in a sealed container (101) and configured to compress a refrigerant; and an electric element (106) configured to drive the compression element (107). Lubricating oil (103) is stored in the sealed container (101). A resin member is included as a member accommodated in the sealed container (101). The amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member. Kinetic viscosity of the lubricating oil 103 at 40° C. falls within a range of 0.1 to 5.1 mm2/s. A flash point of the lubricating oil 103 is 110° C. or more.

公开(公告)号：US20200270541A1

公开(公告)日：2020-08-27

申请号：US16462089

申请日：2017-11-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shingo OYAGI ,  Yoshinori ISHIDA ,  Hirotaka KAWABATA ,  Hiroto HAYASHI

IPC: C10M103/06 ,  F04B39/02

Abstract: An oxide film (170) is formed on a surface of a base material (175) that is a sintered body constituted by an iron-based material. The oxide film (170) includes a first layer (171), a second layer (172), and a third layer (173). The first layer (171) is located on an outermost surface and is constituted by at least fine crystals. The second layer (172) is located under the first layer (171) and contains columnar structures. The third layer (173) contains columnar structures and is provided on the second layer (172) through an interface (174) so as to be located close to the base material (175). The first layer (171) includes a dense layer (171a). The oxide film (170) can exhibit satisfactory abrasion resistance.

公开(公告)号：US20180245637A1

公开(公告)日：2018-08-30

申请号：US15757616

申请日：2016-08-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shingo OYAGI ,  Yoshinori ISHIDA ,  Hirotaka KAWABATA ,  Hiroyuki FUKUHARA ,  Hiroto HAYASHI

IPC: F16C33/12 ,  C23C8/10

CPC classification number: F16C33/12 ,  C23C8/10 ,  F04B39/00 ,  F16C2360/42

Abstract: An oxide coating film provided on a surface of an iron-based material which is a base material of a slide member has one of the following configurations: (1) the oxide coating film comprising a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material, in a region which is closer to the base material, (2) the oxide coating film comprising: a composition A portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances; a composition B portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound; and a composition C portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing silicon (Si) which is more in quantity than silicon (Si) of the composition B portion, and (3) the oxide coating film comprising: a first portion containing at least fine crystals; a second portion containing columnar grains, and/or a third portion containing layered grains.