-
公开(公告)号:US20150354552A1
公开(公告)日:2015-12-10
申请号:US14655663
申请日:2014-01-20
Applicant: PANASONIC CORPORATION
Inventor: Ko INAGAKI , Masanori KOBAYASHI , Yu HARAKI , Yoshinori ISHIDA
CPC classification number: F04B39/0238 , F04B35/04 , F04B39/0005 , F04B39/0022 , F04B39/023 , F04B39/0246 , F04B53/14 , F16J1/08 , F25B1/02 , F25B2500/13 , F25B2600/021 , Y02B30/741
Abstract: A hermetic compressor (100) includes an electric element (110), a compression element (112), and a hermetic container (102). The compression element includes a shaft (118), a cylinder block (124), a piston (136), a connection section (144), and an oil supply mechanism (130). The piston has a columnar seal section (160) in sliding contact with an inner peripheral face of the cylinder, two extension sections (162) that have circular arc faces each having the same radius as a radius of the seal section and extend from the seal section to the bottom dead center side in the axial direction with a circumferential gap therebetween, and a columnar capture section (164) that extends further toward the bottom dead center side than the extension section and has a smaller radius than the radius of the seal section.
Abstract translation: 封闭式压缩机(100)包括电气元件(110),压缩元件(112)和密封容器(102)。 压缩元件包括轴(118),气缸体(124),活塞(136),连接部分(144)和供油机构(130)。 所述活塞具有与所述气缸的内周面滑动接触的柱状密封部(160),具有圆形圆弧面的两个延伸部(162)各自具有与所述密封部的半径相同的半径,并且从所述密封 在轴向方向上具有周向间隙的下死点的截面以及比延伸部分更向下死角侧延伸的柱状捕获部(164),并且具有比密封部的半径小的半径 。