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

IPC: F04B39/02 ,  F04B53/14 ,  F04B39/00 ,  F04B39/12 ,  F04B35/04 ,  F04B37/00

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 。

公开(公告)号：US20170306947A1

公开(公告)日：2017-10-26

申请号：US15644376

申请日：2017-07-07

Applicant: Panasonic Corporation

Inventor： Takumi HIKICHI ,  Yu HARAKI

IPC: F04B49/22 ,  F04B39/10 ,  F04B17/03 ,  F16K15/16

CPC classification number: F04B49/225 ,  F04B17/03 ,  F04B39/1066 ,  F16K15/16 ,  Y10T137/7895

Abstract: A valve device of a compressor of the present invention comprises a plate (17), a reed (21, 75), and a stopper (31), wherein the reed includes: an opening/closing section (60, 70), a fastened section (61, 71); and a joining section (62, 72), the opening/closing section, the fastened section and the joining section being arranged in a direction in which a symmetric axis extends; wherein in a portion of the joining section which is closer to the opening/closing section, a pair of portions (102, 112, 82, 86) of an outer periphery of each of one or two openings (63, 65, 73, 77) which are closest to both ends of the joining section are symmetric with respect to the symmetric axis so as to form a substantially-V-shape or substantially-U-shape, in a direction from the opening/closing section toward the fastened section; and in a portion of the joining section which is closer to the fastened section, a pair of portions (103, 113, 83, 87) of the outer periphery of each of one or two openings which are closest to the both ends of the joining section are symmetric with respect to the symmetric axis so as to form a substantially-V-shape or substantially-U-shape, in a direction from the fastened section toward the opening/closing section.