公开(公告)号：US12031538B2

公开(公告)日：2024-07-09

申请号：US17423555

申请日：2020-01-27

Applicant: Danfoss Commercial Compressors

Inventor： David Genevois ,  Remi Bou Dargham ,  Cyril Montes ,  Arnaud Daussin ,  Dominique Gross

IPC: F04C23/00 ,  F04C18/02 ,  F04C23/02

CPC classification number: F04C23/008 ,  F04C18/0253 ,  F04C23/02 ,  F04C2230/231 ,  F04C2240/30 ,  F04C2240/809

Abstract: The scroll compressor (2) including a hermetic enclosure (3), a compression unit (11) configured to compress refrigerant, and an electric motor (16) configured to drive the compression unit (11) via a drive shaft (15), the hermetic enclosure (3) including a midshell (4), an upper cap (5) and a baseplate (6), the baseplate (6) including a mounting base (24) having a plate shape and including a central portion, and a cylindrical rim surrounding the central portion and extending upwardly, the cylindrical rim (28) being secured to the mounting base (24) by a double-welded T-joint (29), the double-welded T-joint (29) including an inner welding seam connecting an inner surface of the cylindrical rim (28) to the mounting base (24), and an outer welding seam connecting an outer surface of the cylindrical rim (28) to the mounting base (24).

公开(公告)号：US12000395B2

公开(公告)日：2024-06-04

申请号：US17901944

申请日：2022-09-02

Applicant: Hitachi-Johnson Controls Air Conditioning, Inc.

Inventor： Kazuyuki Matsunaga ,  Ryota Iijima

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C18/0261 ,  F04C18/0215 ,  F04C18/0253 ,  F04C29/023 ,  F04C2240/603

Abstract: 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：US20240117807A1

公开(公告)日：2024-04-11

申请号：US18541959

申请日：2023-12-15

Applicant: MAHLE INTERNATIONAL GMBH

Inventor： Brent Haseley

IPC: F04C18/02 ,  F04C29/00 ,  F04C29/02 ,  F04C29/06

CPC classification number: F04C18/0215 ,  F04C18/0253 ,  F04C29/0057 ,  F04C29/026 ,  F04C29/06 ,  F04C23/008 ,  F04C29/02 ,  F04C2230/60 ,  F04C2240/40 ,  F04C2240/403 ,  F04C2240/50 ,  F04C2240/52 ,  F04C2240/805 ,  F04C2240/808

Abstract: An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device and a front cover. The housing defines an intake volume and a discharge volume. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a scroll-type compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the scroll-type electric compressor from the discharge volume.

公开(公告)号：US11933304B2

公开(公告)日：2024-03-19

申请号：US17465109

申请日：2021-09-02

Applicant: BITZER Kuehlmaschinenbau GmbH

Inventor： Paul J. Flanigan

IPC: F04C29/02 ,  F01C21/04 ,  F04C18/02

CPC classification number: F04C29/02 ,  F01C21/04 ,  F04C18/0215 ,  F04C29/023 ,  F04C18/0253 ,  F04C2240/50 ,  F04C2240/56 ,  F04C2240/603

Abstract: A scroll compressor includes two scroll bodies each having a scroll rib. The scroll ribs engage each other to form at least one compression chamber. The scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies. The moveable scroll body includes a base plate which has two opposing sides. On a first side of the two opposing sides, the scroll rib is arranged, and on a second side of the two opposing sides a hub is arranged. The hub has a receiving portion for a drive section of the drive shaft. The moveable scroll body has at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.

公开(公告)号：US11767844B2

公开(公告)日：2023-09-26

申请号：US17461276

申请日：2021-08-30

Applicant: Danfoss (Tianjin) Ltd.

Inventor： Jiangbo Lin ,  Xiaokun Ji

IPC: F04C18/02 ,  B33Y80/00 ,  F04C2/02 ,  F04C29/12

CPC classification number: F04C18/0253 ,  B33Y80/00 ,  F04C18/0246 ,  F04C18/0261 ,  F04C2/025 ,  F04C18/0215 ,  F04C29/12 ,  F04C2230/10 ,  F04C2230/20

Abstract: The present disclosure discloses a fixed scroll and a scroll compressor with the same. The fixed scroll includes: an end plate; a fixed scroll wrap protruding from one surface of the end plate; and an internal cavity formed in the end plate. By adopting the fixed scroll and the scroll compressor with the fixed scroll according to the embodiment of the present disclosure, a weight of the scroll compressor may be reduced for example.

公开(公告)号：US11668302B2

公开(公告)日：2023-06-06

申请号：US17552939

申请日：2021-12-16

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Kyungho Lee ,  Minho Lee

IPC: F04C18/02 ,  F04C2/02 ,  F04C15/00 ,  F04C29/02 ,  F04C23/00

CPC classification number: F04C18/0215 ,  F04C2/025 ,  F04C15/0088 ,  F04C18/0253 ,  F04C23/008 ,  F04C29/025 ,  F04C29/028 ,  F04C2240/30

Abstract: A scroll compressor includes a first oil supply passage communicating with a first compression chamber formed between an inner circumferential surface of a fixed wrap and an outer circumferential surface of an orbiting wrap, and a second oil supply passage separated from the first oil supply passage and communicating with a second compression chamber formed between an outer circumferential surface of the fixed wrap and an inner circumferential surface of the orbiting wrap, wherein the first oil supply passage includes an oil supply guide portion provided in a thrust surface of the fixed scroll in contact with the orbiting scroll to define a part of the first oil supply passage, whereby communication between the first and second compression chambers can be prevented, thereby suppressing leakage between the compression chambers, stabilizing behavior of the orbiting scroll, and facilitating formation of the orbiting scroll.

公开(公告)号：US09903368B2

公开(公告)日：2018-02-27

申请号：US14912390

申请日：2014-07-10

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yoshitomo Tsuka

IPC: F04C18/02 ,  F04C29/00 ,  F04C29/12

CPC classification number: F04C18/0261 ,  F04C18/0215 ,  F04C18/0253 ,  F04C18/0269 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/12

Abstract: A scroll compressor includes fixed and movable scrolls and a crank shaft coupled to the movable scroll. The fixed and movable wraps are engaged to form a compression chamber. A refrigerant compressed in the compression chamber is discharged from a discharge port open at a central portion of the fixed end plate. The compression chamber is divided into first and second compression chambers facing outer and inner circumferential surfaces of the movable wrap. One of the end plates is provided with a communication groove recessed at a portion near a wrapping start position of the wrap. The communication groove connects the first compression chamber and the discharge port before the outer circumferential surface of the movable wrap, which is eccentrically rotating while sliding on an inner circumferential surface of the fixed wrap, separates from the inner circumferential surface of the fixed wrap.

公开(公告)号：US20180038369A1

公开(公告)日：2018-02-08

申请号：US15784458

申请日：2017-10-16

Applicant: Emerson Climate Technologies, Inc.

Inventor： Roy J. DOEPKER ,  Michael M. PEREVOZCHIKOV

IPC: F04C28/18 ,  F04C14/26 ,  F04C28/24 ,  F04C23/00 ,  F04C28/16 ,  F04C15/06 ,  F04C18/02

CPC classification number: F04C28/18 ,  F04C14/26 ,  F04C15/06 ,  F04C18/0215 ,  F04C18/0223 ,  F04C18/0253 ,  F04C23/008 ,  F04C27/005 ,  F04C28/16 ,  F04C28/24

Abstract: A compressor may include a shell, first and second scroll members, a partition plate and a bypass valve member. The shell defines a discharge-pressure region and a suction-pressure region. The first scroll member is disposed within the shell and may include a first end plate having a discharge passage, and first and second bypass passages extending through the first end plate. The partition plate is disposed within the shell and separates the discharge-pressure region from the suction-pressure region and includes an opening in communication with the discharge-pressure region. The bypass valve member is movable between a first position restricting fluid flow through at least one of the first and second bypass passages and the opening and a second position in allowing fluid flow through the at least one of the first and second bypass passages and the opening.

公开(公告)号：US09879674B2

公开(公告)日：2018-01-30

申请号：US14946824

申请日：2015-11-20

Applicant: Emerson Climate Technologies, Inc.

Inventor： Masao Akei ,  Roy J. Doepker

IPC: F03C4/00 ,  F04C2/00 ,  F04C18/00 ,  F04C18/02 ,  F01C1/02 ,  F04C23/00 ,  F04C27/00 ,  F04C28/26 ,  F04C29/00 ,  F04C28/18 ,  F04C29/12 ,  F01C21/00

CPC classification number: F04C18/0215 ,  F01C1/0215 ,  F01C1/0253 ,  F01C2021/1643 ,  F01C2021/165 ,  F04C18/0253 ,  F04C18/0261 ,  F04C23/008 ,  F04C27/005 ,  F04C28/18 ,  F04C28/265 ,  F04C29/0021 ,  F04C29/12 ,  F04C2270/58

Abstract: A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region.

公开(公告)号：US09790941B2

公开(公告)日：2017-10-17

申请号：US14551515

申请日：2014-11-24

Applicant: Emerson Climate Technologies, Inc.

Inventor： Wei Sun ,  Harry Clendenin ,  Pankaj Nimbaji Ahire ,  Pavankumar Jorwekar ,  Ramprasad Ramaswamy ,  Vinayak Juge

IPC: F01C1/02 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C29/00 ,  F04C18/02 ,  F04C23/00

CPC classification number: F04C29/0071 ,  F04C18/0207 ,  F04C18/0215 ,  F04C18/0253 ,  F04C23/008 ,  F04C29/0078 ,  F04C2240/50 ,  F04C2240/802

Abstract: A compressor is provided and may include a shell, a hub, an insert, and at least one collar. The hub may be disposed within the shell and define an axis of rotation. The hub may include an axially extending aperture. The insert may be disposed within the aperture. The at least one collar may be disposed about the hub.