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公开(公告)号：US20180340717A1
公开(公告)日：2018-11-29
申请号：US15757934
申请日：2016-08-26
Inventor： Shingo OYAGI , Yoshinori ISHIDA , Hirotaka KAWABATA , Hiroyuki FUKUHARA
Abstract: A refrigerant compressor reserves lubricating oil in a sealed container, and accommodates therein an electric component, and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film comprising a composition A portion, a composition B portion, and a composition C portion is provided on a slide surface of the iron-based material. The composition A portion is a portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances, and is, for example, an outermost portion (160a). The composition B portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound, and is, for example, an intermediate portion (160b). The composition C portion is a 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 is, for example, an inner portion (160c).
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公开(公告)号：US20180340527A1
公开(公告)日：2018-11-29
申请号：US15757932
申请日：2016-08-26
Inventor： Yoshinori ISHIDA , Shingo OYAGI , Hiroyuki FUKUHARA , Hirotaka KAWABATA
IPC: F04B39/02 , C09K5/04 , C10M105/32 , C10M105/06 , C10M107/24 , F25B31/00 , F04B35/04
Abstract: A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film (150) is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (151), a second portion (152), and/or a third portion (153). The first portion (151) contains at least fine crystals (155). The second portion (152) contains columnar grains (156). The third portion (153) contains layered grains (157).
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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
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.
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公开(公告)号：US20150322949A1
公开(公告)日：2015-11-12
申请号：US14410951
申请日：2013-10-22
Inventor： Shingo OYAGI , Hirofumi YOSHIDA , Hiroaki NAKAI , Yu SHIOTANI , Ryuichi OHNO , Tsuyoshi KARINO
CPC classification number: F04C29/02 , F04B39/02 , F04C18/322 , F04C18/3564 , F04C23/008 , F04C27/001 , F04C29/00 , F04C29/028 , F04C2210/268 , F04C2240/50
Abstract: A compression element 3 includes a substantially spiral oil groove 23 which is provided in inner peripheral surfaces of bearings 14 and 15 of the shaft 6. One end of the oil groove 23 opens at a bearing base portion 24, and the other end of the oil groove 23 opens at a bearing end 25. According to this configuration, oil in a gap between the shaft 6 and inner peripheries of the bearings 14 and 15 forcibly discharges, into the hermetic container 1, gas bubbles generated in a sliding gap between the shaft 6 and the bearings 14 and 15 by action of a viscosity pump generated by the substantially spiral oil groove 23, and it is possible to provide a rotary compressor capable of preventing seizing and wearing caused by gas-involvement at a bearing sliding portion, and capable of securing reliability when refrigerant including R32 is used.
Abstract translation: 压缩元件3包括设置在轴6的轴承14和15的内周面的大致螺旋形的油槽23.油槽23的一端在轴承基部24处开口，油的另一端 槽23在轴承端部25处开口。根据该结构，轴6和轴承14和15的内周之间的间隙中的油被强制地排出到密封容器1中，在轴之间的滑动间隙中产生气泡 6和轴承14和15通过由基本上螺旋形的油槽23产生的粘度泵的作用，并且可以提供一种旋转式压缩机，其能够防止由轴承滑动部分的气体受累引起的卡死和磨损，并且能够 在使用包含R32的制冷剂时确保可靠性。
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公开(公告)号：US20200270541A1
公开(公告)日：2020-08-27
申请号：US16462089
申请日：2017-11-27
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.
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Patent Agency Ranking
公开(公告)号：US20190330747A1
公开(公告)日：2019-10-31
申请号：US16462110
申请日：2017-11-27
Inventor： Yoshinori ISHIDA , Shingo OYAGI
Abstract: A refrigerant compressor includes: an electric component; and a compression component driven by the electric component to compress a refrigerant. At least one sliding member constituting the compression component is made of a base material (185) that is an iron-based material. An abrasion resistance film (180) including a surface layer constituted by at least fine crystals is formed on a sliding surface of the sliding member. The surface layer (181) includes an A portion in which a component contained most is diiron trioxide (Fe2O3). The A portion exists within a range of at least 0.3 μm or less from an outermost surface of the sliding surface. The abrasion resistance film (180) may include at least one intermediate layer (182 to 184) located between the surface layer (181) and the base material (185). With this, self-abrasion resistance of the sliding member can be improved, so that the refrigerant compressor having excellent reliability and efficiency can be obtained.
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公开(公告)号：US20190032971A1
公开(公告)日：2019-01-31
申请号：US16074670
申请日：2017-02-10
Inventor： Yoshinori ISHIDA , Shingo OYAGI
IPC: F25B31/00 , F04B15/08 , F04B17/03 , F04B39/00 , F04B39/02 , F25B31/02 , C09K5/04 , C10M171/00 , C10M125/02
Abstract: Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm.
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公开(公告)号：US20180291899A1
公开(公告)日：2018-10-11
申请号：US16003991
申请日：2018-06-08
Inventor： Hiroaki NAKAI , Hirofumi YOSHIDA , Shingo OYAGI , Yu SHIOTANI , Tsuyoshi KARINO
IPC: F04C18/356 , F04C18/44 , F04C23/00 , F04C29/00
CPC classification number: F04C18/3564 , F04C18/356 , F04C18/44 , F04C23/00 , F04C23/001 , F04C29/00 , F04C29/0057 , F04C2240/20 , F04C2240/60
Abstract: A rotary compressor having two cylinders includes crankshaft having first eccentric portion and second eccentric portion connected to each other by connecting portion. The rotary compressor further includes two compressive elements that compress working fluid in cylinder as first piston inserted over first eccentric portion eccentrically rotates in accordance with rotation of crankshaft. Further, first piston inserted over first eccentric portion undergoes assembly by being inserted over first eccentric portion through second eccentric portion. Further, a releasing portion is provided at each of outer diameter portions of first eccentric portion and second eccentric portion.
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公开(公告)号：US20180245637A1
公开(公告)日：2018-08-30
申请号：US15757616
申请日：2016-08-26
Inventor： Shingo OYAGI , Yoshinori ISHIDA , Hirotaka KAWABATA , Hiroyuki FUKUHARA , Hiroto HAYASHI
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.
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公开(公告)号：US20180245576A1
公开(公告)日：2018-08-30
申请号：US15757620
申请日：2016-08-26
Inventor： Yoshinori ISHIDA , Shingo OYAGI , Hiroyuki FUKUHARA , Hirotaka KAWABATA
Abstract: A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base material 171 made of an iron-based material and an oxide coating film 170 provided on a surface of the base material 171. The oxide coating film 170 includes: 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 171, in a region which is closer to the base material 171.
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