公开(公告)号：US20250020123A1

公开(公告)日：2025-01-16

申请号：US18768627

申请日：2024-07-10

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tomoaki MIYATA ,  Taku Adaniya ,  Shozo Hamana ,  Shuji Takimoto ,  Keisuke Isobe

IPC: F04C23/02 ,  F04C18/02

Abstract: An electric compressor includes a rotary shaft, a compression part, a motor including a stator, and a housing. The stator includes a stator core, coils corresponding to a plurality of phases, an insulator, coil ends, first leads of the winding wires, a neutral connection portion, and a cover member. The cover member has a cover end surface opposite from the coil ends. The cover end surface has an accommodation portion in which the neutral connection portion is accommodated. The first leads each include a covered portion, and a non-covered portion. The non-covered portion includes an extension portion continuous with the neutral connection portion extending out from the accommodation portion by a predetermined length. The cover end surface includes a first surface, and a second surface. At least the first surface has a through hole. The first surface is positioned farther from the coil ends than the second surface is.

公开(公告)号：US12071950B2

公开(公告)日：2024-08-27

申请号：US17767001

申请日：2019-10-11

Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

Inventor： Takayuki Hagita ,  Akinori Yoshioka ,  Manabu Suzuki ,  Hideo Saho

IPC: F04C18/02 ,  F04C23/02

CPC classification number: F04C23/02 ,  F04C18/0215 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/808

Abstract: This electric compressor (10) has: an accommodating case (15) that accommodates an inverter device (19) and includes an accommodating section body (31), a substrate support section (32) protruding from a bottom surface (31a) of the accommodating section body (31), and a cover member (34) that closes an opening in the accommodating section body (31); and an antivibration member (17) that is positioned between one surface (51a) of a head part (51) of a bolt (16) fastened to the substrate support section (32) and an inner surface (34a) of the cover member (34), and that is bonded to the one surface (51a) of the head part (51) and the inner surface (34a) of the cover member (34).

公开(公告)号：US12049897B2

公开(公告)日：2024-07-30

申请号：US17556355

申请日：2021-12-20

Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.

Inventor： Yang Li ,  Hongjun Cao ,  Song Zhu

IPC: F04C29/06 ,  F04C18/356 ,  F04C23/02 ,  F04C29/02

CPC classification number: F04C29/068 ,  F04C23/02 ,  F04C29/028 ,  F04C18/356 ,  F04C2240/30 ,  F04C2240/50 ,  F04C2240/60 ,  F04C2240/80 ,  F04C2240/805

Abstract: A baffle plate for a compressor, a compressor, and refrigeration apparatus are provided. The baffle plate has a plate body, a through hole and a connection part. The through hole is formed in the plate body. The plate body extends from the through hole in a direction deviating from the axis of the through hole. The connection part is connected with the plate body and is used for connecting the plate body to a non-rotating member. A fixed baffle plate is arranged in the compressor, to physically block the gas flow and form a space for stabilizing the refrigerant oil or lubricant oil on one side of the baffle plate corresponding to the oil sump. The space can isolate the disturbance from spiral flow of a lower cavity to the oil sump caused by the rotation of the motor when the compressor operates.

公开(公告)号：US11994127B2

公开(公告)日：2024-05-28

申请号：US17280078

申请日：2019-09-25

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke Okamoto ,  Naoto Tomioka ,  Mikio Kajiwara ,  Yohei Nishide ,  Yousuke Ohnishi ,  Masaaki Adachi

IPC: F04C23/02 ,  F04C18/356 ,  F04C23/00 ,  F04C29/02 ,  F04C29/04 ,  F25B1/04 ,  F25B1/10 ,  F25B13/00 ,  F25B31/00

CPC classification number: F04C23/02 ,  F04C18/356 ,  F04C18/3564 ,  F04C23/00 ,  F04C23/001 ,  F04C23/008 ,  F04C29/02 ,  F04C29/04 ,  F25B1/04 ,  F25B1/10 ,  F25B13/00 ,  F25B31/004 ,  F04C2210/222 ,  F04C2240/30 ,  F04C2240/804 ,  F25B2400/04 ,  F25B2400/072 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2700/21152

Abstract: A multistage compression system uses refrigerant and oil. The multistage compression system includes a low-stage compressor that compresses the refrigerant, a high-stage compressor that further compresses the refrigerant compressed by the low-stage compressor, and an oil return pipe that returns the oil discharged by the high-stage compressor or the oil in the high-stage compressor to the low-stage compressor. The low-stage compressor has a rotary compression part that compresses the refrigerant, a motor that drives the compression part, and a container housing the compression part and the motor. The motor is disposed above the compression part. The oil return pipe is connected to a space below the motor inside the container.

公开(公告)号：US11905958B2

公开(公告)日：2024-02-20

申请号：US17672634

申请日：2022-02-15

Applicant: Hong Wang

Inventor： Hong Wang ,  Yusheng Wang

IPC: F04C23/02 ,  F04C25/02 ,  F04C29/02 ,  F04C18/344

CPC classification number: F04C23/02 ,  F04C25/02 ,  F04C29/023 ,  F04C29/028 ,  F04C18/3441 ,  F04C2240/60 ,  F04C2240/603

Abstract: A vacuuming device comprises a main body, a rotary shaft, a vacuum pump rotor, a motor stator and a motor rotor. An air inlet, an air outlet, an oil storage chamber and a motor chamber are disposed in the main body. The oil storage chamber communicates with the air outlet. The rotary shaft is rotationally connected to the main body. The vacuum pump rotor is fixedly mounted to the rotary shaft and cooperatively forms a stator cavity of the vacuum pump with the inner-wall of the main body. The air inlet and the oil storage chamber communicate with the stator cavity of the vacuum pump respectively. The vacuuming device reduces the cost of manufacturing, optimizes the spatial structure and downsizes the device.

公开(公告)号：US11841015B2

公开(公告)日：2023-12-12

申请号：US17044566

申请日：2019-03-21

Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP

Inventor： Kristof Adrien Laura Martens ,  Cornelis Theodorus Philippi

IPC: F04C18/16 ,  F04C23/02 ,  F04C27/00 ,  F04C29/02

CPC classification number: F04C18/16 ,  F04C23/02 ,  F04C27/004 ,  F04C29/02 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/50

Abstract: A fluid-injected compressor installation (1) comprises a screw compressor (2) with a compression housing (4) in which a pair of compressor rotors (6a, 6b) are mounted. A drive motor (3) drives the compressor rotors. An inlet (7) and an outlet (8) on the screw compressor (2) supply a gas and discharge compressed gas. A gear transmission (20) between the shaft (16) of one of the compressor rotors and the motor shaft (11), includes a driven gear (18) and a driving gear (19); a motor bearing (21) on the motor shaft (11) next to the driving gear (19); and a dynamic seal (25) next to the motor bearing (21), on the drive motor (3) side, such that the motor bearing (21) is between the driving gear (19) and the seal (25).

公开(公告)号：US11835045B2

公开(公告)日：2023-12-05

申请号：US17719009

申请日：2022-04-12

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuichi Yamamoto ,  Makoto Adachi

IPC: F04C23/02 ,  H02K1/16 ,  H02K7/14

CPC classification number: F04C23/02 ,  H02K1/165 ,  H02K7/14 ,  F04C2240/40 ,  F04C2240/60 ,  H02K2213/03

Abstract: A rotary compressor includes a compression mechanism, a casing, a motor stator and a motor rotor. The motor stator includes stacked steel plates, teeth, and slots. The stacked steel plates are fixed to an inner surface of the casing. A number of the teeth and slots is nine. The motor rotor rotates a crankshaft to drive the compression mechanism. The stacked steel plates have first to ninth areas radially outside the nine teeth, first concave portions provided in five of the areas, and a second concave portion provided in at least one of four areas other than the five areas. The five first concave portions and an inner circumferential surface of a cylindrical portion form five first passages. The second concave portion and the inner circumferential surface of the cylindrical portion form at least one second passage.

公开(公告)号：US20230349379A1

公开(公告)日：2023-11-02

申请号：US17791217

申请日：2020-01-09

Applicant: PIERBURG GMBH

Inventor： LUKAS LOEHMER ,  PHILIPP BARTH ,  JAN BERWANGER

IPC: F04C18/02 ,  F04C29/02 ,  F04C23/02

CPC classification number: F04C18/0215 ,  F04C29/026 ,  F04C23/02 ,  F04C2240/30 ,  F04C2240/40

Abstract: A scroll compressor includes a compressor housing, a high-pressure chamber, a low-pressure chamber, an oil return channel having an oil return throttle arranged therein, a driven eccentric unit, a fixed scroll, an orbiting displacement scroll arranged on the driven eccentric unit which interacts with the fixed scroll, a sliding disk arranged between the orbiting displacement scroll and the compressor housing, a back-pressure chamber arranged adjacent to the orbiting displacement scroll, and a gas connecting channel having a gas connecting throttle arranged therein. The oil return channel fluidically connects the high-pressure chamber with the low-pressure chamber. The gas connecting channel fluidically connects the back-pressure chamber with the high-pressure chamber. The oil return channel and/or the gas connecting channel extends through the sliding disk. The sliding disk includes the oil return throttle and/or the gas connecting throttle.

公开(公告)号：US11692538B2

公开(公告)日：2023-07-04

申请号：US17345637

申请日：2021-06-11

Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION

Inventor： Takuya Kinoshita ,  Hideki Yamada

IPC: F04B39/14 ,  F04B39/12 ,  F04C23/00 ,  F04C11/00 ,  F04C23/02 ,  F04D17/12 ,  F04D29/62 ,  F04B41/06

CPC classification number: F04B39/14 ,  F04B39/121 ,  F04C11/00 ,  F04C11/001 ,  F04C11/008 ,  F04C23/00 ,  F04C23/001 ,  F04C23/008 ,  F04C23/02 ,  F04D17/122 ,  F04D29/624 ,  F04B41/06

Abstract: A compressor system includes: a first compressor including a first casing having a cylindrical shape, and a first bundle capable of being inserted into and pulled out from the first casing in an axial direction of the first casing; and a second compressor including a second casing having a cylindrical shape, and a second bundle capable of being inserted into and pulled out from the second casing in an axial direction of the second casing. The first and second compressors are arranged to face each other to cause pullout directions of the respective bundles to be opposite to each other. A maintenance space shareable for insertion and pullout operations of the first bundle and insertion and pullout operations of the second bundle is interposed between the first bundle and the second bundle, and is available for the bundle under the insertion and pullout operations.

公开(公告)号：US11629714B2

公开(公告)日：2023-04-18

申请号：US17181109

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Jeonghun Kim ,  Sung Yong Ahn

IPC: F04C29/04 ,  F04C29/06 ,  F04C29/00 ,  F01C21/10 ,  F04C23/02 ,  F04C18/02

Abstract: A compressor may include a casing, and a compression device installed inside of the casing and that compresses the refrigerant while rotating by receiving a rotational force of an electric motor through a rotational shaft. A high/low pressure separation plate may be installed at an upper portion of the compression device, and an insulation plate may be provided to block the high/low pressure separation plate and the suction tube from each other by being located therebetween. The insulation plate may reduce heat transfer between a refrigerant discharge space having a high temperature located at the upper portion of the high/low pressure separation plate and a refrigerant suction space having a relatively low temperature located at a lower portion of the high/low pressure separation plate.