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    Scroll compressor and method for controlling scroll compressor
    1.
    发明授权
    Scroll compressor and method for controlling scroll compressor 有权

    公开(公告)号：US12215687B2

    公开(公告)日：2025-02-04

    申请号：US18573467

    申请日：2022-06-20

    Applicant: Danfoss Commercial Compressors

    Inventor： Patrice Bonnefoi ,  Wanzhen Liu ,  David Genevois ,  Jean Francois Heitz

    IPC: F04C18/02 ,  F04C23/00 ,  F04C23/02 ,  F04C28/28 ,  F04C29/02 ,  F04C29/04

    Abstract: A scroll compressor (2) includes a sealed housing (3); a compression unit (11), having a fixed scroll (12) and an orbiting scroll (13); a drive shaft (18) configured to drive the orbiting scroll (13) to move orbitally, the drive shaft (18) being capable of rotating about an axis of rotation; a synchronous reluctance motor (15) configured to drive the drive shaft (18) to rotate about the axis of rotation, the synchronous reluctance motor (15) comprising a rotor (16) coupled to the drive shaft (18) and a stator (17) disposed around the rotor (16), and the rotor (16) including a ferrite permanent magnet (23); a compressor control apparatus (31) configured to control the scroll compressor (2) to operate; a lubricating oil tank (27), formed in a bottom portion of the sealed housing (3); a heating apparatus configured to heat lubricating oil stored in the lubricating oil tank (27); and an oil temperature sensor (28) disposed in the lubricating oil tank (27).

    SCROLL COMPRESSOR
    3.
    发明申请
    SCROLL COMPRESSOR 有权
    滚动压缩机

    公开(公告)号：US20160108917A1

    公开(公告)日：2016-04-21

    申请号：US14890216

    申请日：2014-05-21

    Applicant: DANFOSS COMMERCIAL COMPRESSORS

    Inventor： Patrice Bonnefoi ,  Yves Rosson ,  Ingrid Claudin

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

    CPC classification number: F04C29/005 ,  F04C18/0215 ,  F04C18/0223 ,  F04C23/008 ,  F04C29/023 ,  F04C2240/60

    Abstract: This scroll compressor (2) includes a first fixed scroll (4), an orbiting scroll arrangement (7), a drive shaft (18) adapted for driving the orbiting scroll arrangement (7) in an orbital movement, a driving unit coupled to the drive shaft (18) and arranged for driving in rotation the drive shaft (18) about a rotation axis, and guide elements for guiding in rotation the drive shaft (18), the guide elements comprising at least a first guide bearing (29) and a second guide bearing (30) arranged to respectively guide a first portion (26) and a second portion (27) of the drive shaft (18). The drive shaft (18) extends across the orbiting scroll arrangement (7) such that the first and second portions (26, 27) of the drive shaft (18) are located on either side of the orbiting scroll arrangement (7), the first and second guide bearings (29, 30) being located on either side of the orbiting scroll arrangement (7).

    Abstract translation: 该涡旋式压缩机（2）包括第一固定涡旋盘（4），绕动涡旋装置（7），适于在轨道运动中驱动绕动涡旋装置（7）的驱动轴（18），驱动单元 驱动轴（18）并布置成围绕旋转轴线旋转驱动轴（18），以及用于引导驱动轴（18）旋转的引导元件，所述引导元件至少包括第一引导轴承（29）和 布置成分别引导驱动轴（18）的第一部分（26）和第二部分（27）的第二导向轴承（30）。 驱动轴（18）跨越绕动涡旋装置（7）延伸，使得驱动轴（18）的第一和第二部分（26,27）位于绕动涡旋装置（7）的任一侧，第一 和位于所述绕动涡旋装置（7）的任一侧上的第二导向轴承（29,30）。

    Scroll compressor having first and second oldham couplings
    4.
    发明授权
    Scroll compressor having first and second oldham couplings 有权
    涡旋式压缩机具有第一和第二旧式联轴器

    公开(公告)号：US09169841B2

    公开(公告)日：2015-10-27

    申请号：US14138503

    申请日：2013-12-23

    Applicant: DANFOSS COMMERCIAL COMPRESSORS

    Inventor： Patrice Bonnefoi ,  Yves Rosson ,  Ingrid Claudin

    IPC: F16D3/04 ,  F01C1/02 ,  F04C29/00 ,  F04C18/02

    CPC classification number: F04C29/0057 ,  F04C18/0207 ,  F04C18/0215 ,  F04C29/0021

    Abstract: This scroll compressor includes a first fixed scroll member, an orbiting scroll arrangement including a first orbiting scroll member, a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed scroll member, a fixed element opposite to the first fixed scroll member with respect to the orbiting scroll arrangement, and a second Oldham coupling provided between the orbiting scroll arrangement and the fixed element and configured to prevent rotation of the orbiting scroll arrangement with respect to the fixed element. The first Oldham coupling is slidable with respect to the first fixed scroll member along a first displacement direction, and the second Oldham coupling is slidable with respect to the fixed element along a second displacement direction transverse to the first displacement direction.

    Abstract translation: 该涡旋压缩机包括第一固定涡旋构件，包括第一绕动涡旋构件的绕动涡旋构件，设置在第一绕动涡旋构件和第一固定涡旋构件之间的第一十字联轴器，并且构造成防止第一绕动涡旋构件与第 相对于第一固定涡旋构件，相对于绕动涡旋装置与第一固定涡旋构件相对的固定元件，以及设置在绕动涡旋装置和固定元件之间的第二十字联轴器，并且构造成防止绕动涡盘 相对于固定元件的布置。 第一十字联轴节可沿着第一位移方向相对于第一固定涡旋构件滑动，并且第二十字联轴节可沿着横向于第一位移方向的第二位移方向相对于固定元件滑动。

    Multi-compressor system with normally-open valves in oil balancing connections
    5.
    发明授权
    Multi-compressor system with normally-open valves in oil balancing connections 有权

    公开(公告)号：US12241670B2

    公开(公告)日：2025-03-04

    申请号：US18182764

    申请日：2023-03-13

    Applicant: Danfoss Commercial Compressors

    Inventor： Thierry Legay ,  Patrice Bonnefoi

    IPC: F25B7/00 ,  F04B41/06 ,  F04C2/02 ,  F04C11/00 ,  F25B31/00 ,  F25B41/20

    Abstract: The multi-compressor system has a plurality of parallelly coupled compressors; inlet connection lines each connected to a refrigerant suction fitting of a respective compressor; outlet connection lines each connected to a refrigerant discharge fitting of a respective compressor; a common oil balancing line and balancing connection lines each connecting the common oil balancing line to an oil balancing connection of a respective compressor; and spring-loaded normally-open valves each being arranged within a respective balancing connection line or within an oil balancing connection of a respective compressor and each being configured to close when a pressure difference between a pressure prevailing in the low pressure volume of the respective compressor and a pressure prevailing in the common oil balancing line reaches a predetermined value.

    FLUID MACHINE HAVING A LABYRINTH SEAL
    7.
    发明申请
    FLUID MACHINE HAVING A LABYRINTH SEAL 审中-公开

    公开(公告)号：US20180156337A1

    公开(公告)日：2018-06-07

    申请号：US15576433

    申请日：2016-05-19

    Applicant: Danfoss Commercial Compressors

    Inventor： Arnaud Daussin ,  Patrice Bonnefoi ,  Yves Rosson ,  Nicolas Nouyrigat

    IPC: F16J15/447

    CPC classification number: F16J15/4472 ,  F01D11/02 ,  F04D29/08 ,  F05D2220/30 ,  F05D2240/55

    Abstract: The fluid machine includes a stationary member (6), a rotary member (5) and a labyrinth seal (9) including a succession of stationary steps (11) formed on the stationary member (6), and a succession of rotary steps (14) formed on the rotary member (5). The labyrinth seal (9) further includes a plurality of stationary recesses (18) each formed in a radial wall portion (12) of a respective stationary step (11), and a plurality of rotary recesses (21) each formed in a radial wall portion (16) of a respective rotary step (14). Each stationary step (11) defines a stationary projection (19) delimited by the stationary recess (18) formed on said stationary step (11), and each rotary step (14) defines a rotary projection (22) delimited by the rotary recess (21) formed on said rotary step (14). The axial width (Wr) of each of the stationary recesses (18) and of the rotary recesses (21) substantially equals the axial width (Wp) of each of the stationary projections (19) and of the rotary projections (22).

    SCROLL COMPRESSOR PROVIDED WITH AN HYDROSTATIC LOWER BEARING ARRANGEMENT
    9.
    发明申请
    SCROLL COMPRESSOR PROVIDED WITH AN HYDROSTATIC LOWER BEARING ARRANGEMENT 有权

    公开(公告)号：US20220290666A1

    公开(公告)日：2022-09-15

    申请号：US17690533

    申请日：2022-03-09

    Applicant: Danfoss Commercial Compressors

    Inventor： Patrice Bonnefoi

    IPC: F04C2/02 ,  F04C15/00

    Abstract: The scroll compressor includes a compression unit; a drive shaft which is vertically orientated; a lower bearing arrangement (28) configured to rotatably support the drive shaft; and an oil pump (29) arranged at a lower end of the drive shaft and configured to deliver oil to the compression unit and to the lower bearing arrangement (28). The lower bearing arrangement (28) comprises a radial bearing housing (34) including an inner radial bearing surface (37) surrounding the lower end portion of the drive shaft; upper and lower axial thrust bearings (43, 44) configured to limit an axial movement of the drive shaft; and a pressurized oil chamber (51) fluidly connected to the oil pump (29), the pressurized oil chamber (51) being at least partially delimited by the outer surface of the lower end portion of the drive shaft, the inner radial bearing surface (37) and the upper and lower axial thrust bearings (43, 44).

    Scroll compressor
    10.
    发明授权
    Scroll compressor 有权

    公开(公告)号：US10788037B2

    公开(公告)日：2020-09-29

    申请号：US15027294

    申请日：2014-09-16

    Applicant: Danfoss Commercial Compressors, S.A.

    Inventor： Yves Rosson ,  Patrice Bonnefoi ,  Ingrid Claudin

    IPC: F04C18/02 ,  F04C29/00 ,  F04C29/04

    Abstract: This scroll compressor (2) includes a first and second fixed scrolls (4, 5) comprising first and second fixed spiral wraps (9, 12), an orbiting scroll arrangement (7) comprising first and second orbiting spiral wraps (14, 15), the first fixed spiral wrap (9) and the first orbiting spiral wrap (14) forming a plurality of first compression chambers (16) and the second fixed spiral wrap (5) and the second orbiting spiral wrap (15) forming a plurality of second compression chambers (17). The scroll compressor further includes a drive shaft (23) adapted for driving the orbiting scroll arrangement (7) in an orbital movement, and a driving motor (24) arranged for driving in rotation the drive shaft (23) about a rotation axis, the driving motor (24) being located nearby the first fixed scroll (4). The first fixed scroll (4) includes at least one first discharge passage (21) arranged to conduct the refrigerant compressed in the first compression chambers (16) towards the driving motor (24).

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