公开(公告)号：US12025133B2

公开(公告)日：2024-07-02

申请号：US17421099

申请日：2019-12-25

申请人： HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.

发明人： Tsutomu Nozaki ,  Kazuyuki Matsunaga ,  Ryo Kurono

IPC分类号： F04C29/04 ,  F04B39/02 ,  F04B39/04 ,  F04C18/02 ,  F04C23/00 ,  F04C29/00 ,  F04C29/02

CPC分类号： F04C29/045 ,  F04C18/02 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/02 ,  F04C29/026 ,  F04C29/028 ,  F04B39/02 ,  F04B39/04 ,  F04C2240/30 ,  F04C2240/603 ,  F04C2240/807

摘要： Provided is, e.g., a compressor with a high reliability. A compressor (100) includes a hermetic container (1) sealed with lubricant oil, an electric motor (6) placed inside the hermetic container (1) and having a stator (6a) and a rotor (6b), a crankshaft (3) configured to rotate integrally with the rotor (6b), a compression mechanism (2) configured to compress refrigerant in association with rotation of the crankshaft (3), a discharge pipe (Pb) configured to guide the refrigerant compressed in the compression mechanism (2) to the outside of the hermetic container (1), and a tubular oil ring (15) provided between the compression mechanism (2) and the electric motor (6). A cutout (s1) is, at a lower portion of the oil ring (15), provided as a first insertion portion into which the discharge pipe (Pb) is inserted.

公开(公告)号：US12000395B2

公开(公告)日：2024-06-04

申请号：US17901944

申请日：2022-09-02

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Kazuyuki Matsunaga ,  Ryota Iijima

IPC分类号： F04C18/02 ,  F04C29/02

CPC分类号： F04C18/0261 ,  F04C18/0215 ,  F04C18/0253 ,  F04C29/023 ,  F04C2240/603

摘要： In a scroll compressor, at an end plate surface of a fixed scroll, an annular back pressure groove connected to a back pressure chamber is provided, and an arc-shaped first groove and an arc-shaped second groove are provided inside the back pressure groove in a radial direction. A distance between the second groove and the back pressure groove is shorter than a distance between the first groove and the back pressure groove. A revolving scroll is provided with a first hole and a second hole for guiding lubricant oil from an oil supply path to the end plate surface side of the fixed scroll. At least part of a movement locus of an opening of the first hole is included in the first groove. At least part of a movement locus of an opening of the second hole is included in the second groove. The first groove and the second groove at least partially overlap with each other in the radial direction.

公开(公告)号：US11592022B2

公开(公告)日：2023-02-28

申请号：US17159308

申请日：2021-01-27

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Ryota Iijima ,  Kazuyuki Matsunaga

IPC分类号： F04C18/02 ,  F04C29/02 ,  F04C23/00

摘要： A scroll compressor includes a hermetic container, a fixed scroll, a swing scroll, a frame, an electric motor, and a shaft. A first groove and a second groove are provided outside a fixed wrap in a radial direction at an end plate surface of the fixed scroll. An oil supply hole for guiding lubricant oil from a through-hole opens at an end plate surface of the swing scroll. A single opening of the oil supply hole alternately communicates with the first groove and the second groove along with swing of the swing scroll.