公开(公告)号：US10233930B2

公开(公告)日：2019-03-19

申请号：US16003991

申请日：2018-06-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroaki Nakai ,  Hirofumi Yoshida ,  Shingo Oyagi ,  Yu Shiotani ,  Tsuyoshi Karino

IPC: F03C2/00 ,  F03C4/00 ,  F04C11/00 ,  F04C18/356 ,  F04C23/00 ,  F04C29/00 ,  F04C18/44

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.

公开(公告)号：US09512841B2

公开(公告)日：2016-12-06

申请号：US14358996

申请日：2012-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Ogata ,  Yu Shiotani ,  Takumi Hikichi ,  Kentaro Shii ,  Tadayoshi Shoyama ,  Masanobu Wada ,  Hiroshi Hasegawa ,  Hirofumi Yoshida ,  Hiroaki Nakai ,  Akira Hiwata ,  Daisuke Funakosi ,  Ryuichi Ohno ,  Tsuyoshi Karino

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C29/04 ,  F04C29/02 ,  F04C18/356 ,  F01C21/10 ,  F04C29/12 ,  F04C23/00

CPC classification number: F04C29/04 ,  F01C21/10 ,  F04C18/356 ,  F04C23/001 ,  F04C23/008 ,  F04C29/028 ,  F04C29/126 ,  F04C2240/50 ,  F04C2240/809

Abstract: A rotary compressor (100) includes a closed casing (1), a cylinder (15), a piston (28), a lower bearing member (72), a vane (33), a suction port (20), a discharge port (41), and a partition member (64). The partition member (64) is attached to the lower bearing member (72) so as to form a space enclosed by the partition member (64) and the lower bearing member (72) at a position adjacent to the lower bearing member (72). A portion of an oil stored in the oil reservoir (22) flows into the enclosed space, and thereby an oil retaining portion (53) is formed. The oil retaining portion (53) is located on the same side as the suction port (20) with respect to a reference plane (H1).

Abstract translation: 一种旋转式压缩机（100）包括一个封闭的壳体（1），一个气缸（15），一个活塞（28），一个下轴承件（72），一个叶片（33），一个吸入口（20） （41）和分隔构件（64）。 分隔构件64被安装在下轴承构件72上，以便在与下轴承构件72相邻的位置处形成由分隔构件64和下轴承构件72包围的空间。 。 存储在贮油器（22）中的油的一部分流入封闭空间，从而形成油保持部（53）。 油保持部53相对于基准面（H1）位于与吸入口20相同的一侧。

公开(公告)号：US10233929B2

公开(公告)日：2019-03-19

申请号：US15118857

申请日：2015-06-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroaki Nakai ,  Hirofumi Yoshida ,  Shingo Oyagi ,  Yu Shiotani ,  Tsuyoshi Karino

IPC: F03C2/00 ,  F03C4/00 ,  F04C11/00 ,  F04C18/356 ,  F04C23/00 ,  F04C29/00 ,  F04C18/44

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.

公开(公告)号：US09568004B2

公开(公告)日：2017-02-14

申请号：US14358969

申请日：2012-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Ogata ,  Yu Shiotani ,  Takumi Hikichi ,  Kentaro Shii ,  Tadayoshi Shoyama ,  Masanobu Wada ,  Hiroshi Hasegawa ,  Hirofumi Yoshida ,  Hiroaki Nakai ,  Akira Hiwata ,  Daisuke Funakosi ,  Ryuichi Ohno ,  Tsuyoshi Karino

IPC: F01C1/063 ,  F04C18/063 ,  F16N13/00 ,  F01C21/18 ,  F04C15/06 ,  F04C29/12 ,  F04C29/04 ,  F04C29/02 ,  F04C18/356 ,  F04C18/02 ,  F04C23/00

CPC classification number: F04C29/04 ,  F04C18/0215 ,  F04C18/3564 ,  F04C23/001 ,  F04C23/008 ,  F04C29/026 ,  F04C2240/809

Abstract: A rotary compressor (100) includes a closed casing (1), a cylinder (15), a piston (28), a lower bearing member (7), a vane (33), a suction port (20), a discharge port (41), and a partition member (10). The partition member (10) is attached to the lower bearing member (7) so as to form a refrigerant discharge space (52) serving as a flow path of a refrigerant discharged from a discharge chamber (26b) through the discharge port (41). The lower bearing member (7) is provided with a first recess (7t) on the same side as the suction port (20) with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder (15) and a center of the vane (33) when the vane (33) protrudes maximally toward the central axis of the cylinder (15). A portion of oil stored in an oil reservoir (22) flows into the first recess (7t), and thereby an oil retaining portion (53) is formed.

Abstract translation: 旋转式压缩机（100）包括封闭壳体（1），气缸（15），活塞（28），下支承构件（7），叶片（33），吸入口（20） （41）和分隔构件（10）。 分隔构件（10）安装在下支承构件（7）上，形成作为从排出室（26b）经排出口（41）排出的制冷剂的流路的制冷剂排出空间（52） 。 下轴承构件（7）在相对于参考平面与吸入口（20）相同的一侧设置有第一凹部（7t），该参考平面是包括气缸（15）的中心轴线的平面， 以及当所述叶片（33）朝向所述气缸（15）的中心轴线最大突出时所述叶片（33）的中心。 存储在储油器（22）中的油的一部分流入第一凹部（7t），从而形成油保持部（53）。

公开(公告)号：US09482231B2

公开(公告)日：2016-11-01

申请号：US14410951

申请日：2013-10-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shingo Oyagi ,  Hirofumi Yoshida ,  Hiroaki Nakai ,  Yu Shiotani ,  Ryuichi Ohno ,  Tsuyoshi Karino

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/00 ,  F04C29/02 ,  F04C18/32 ,  F04C27/00 ,  F04B39/02 ,  F04C29/00 ,  F04C18/356 ,  F04C23/00

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 includes a substantially spiral oil groove which is provided in inner peripheral surfaces of bearings and of the shaft. One end of the oil groove opens at a bearing base portion, and the other end of the oil groove opens at a bearing end. According to this configuration, oil in a gap between the shaft and inner peripheries of the bearings and forcibly discharges, into the hermetic container, gas bubbles generated in a sliding gap between the shaft and the bearings and by action of a viscosity pump generated by the substantially spiral oil groove, 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: 压缩元件包括设置在轴承和轴的内周面中的大致螺旋形的油槽。 油槽的一端在轴承基部开口，油槽的另一端在轴承端开口。 根据该结构，轴与轴承的内周之间的间隙中的油被强制地排出到密封容器中，在轴与轴承之间的滑动间隙中产生的气泡和由 基本上是螺旋形的油槽，并且可以提供一种旋转式压缩机，能够防止在轴承滑动部分引起气体的咬合和磨损，并且能够在使用含有R32的制冷剂时确保可靠性。