公开(公告)号：US12066025B2

公开(公告)日：2024-08-20

申请号：US17959573

申请日：2022-10-04

Applicant: Danfoss Commercial Compressors

Inventor： Remi Bou Dargham ,  Alain Laville ,  Arnaud Daussin ,  Jean-Jacques Laissus

IPC: F04C29/06 ,  F04C18/02 ,  F04C23/00

CPC classification number: F04C29/068 ,  F04C18/0215 ,  F04C29/065 ,  F04C23/008

Abstract: The scroll compressor includes a compressor shell having a discharge outlet; an orbiting scroll; a fixed scroll including a discharge passage (16); a discharge pressure volume (17) at least partially defined by the compressor shell and the fixed scroll (7); a discharge muffler arrangement (21) attached to the fixed scroll (7) and arranged in the discharge pressure volume (17), the discharge muffler arrangement (21) including a first tubular element (28) provided with a muffler inlet (29) fluidly connected to the discharge passage (16), an expansion chamber (33) fluidly connected to an inner volume of the first tubular element (28), and a second tubular element (35) including an inlet opening emerging in the expansion chamber (33) and an outlet opening fluidly connected to the discharge pressure volume (17).

公开(公告)号：US20230167825A1

公开(公告)日：2023-06-01

申请号：US17959573

申请日：2022-10-04

Applicant: Danfoss Commercial Compressors

Inventor： Remi Bou Dargham ,  Alain Laville ,  Arnaud Daussin ,  Jean-Jacques Laissus

IPC: F04C29/06 ,  F04C18/02

CPC classification number: F04C29/065 ,  F04C18/0215

Abstract: The scroll compressor includes a compressor shell having a discharge outlet; an orbiting scroll; a fixed scroll including a discharge passage (16); a discharge pressure volume (17) at least partially defined by the compressor shell and the fixed scroll (7); a discharge muffler arrangement (21) attached to the fixed scroll (7) and arranged in the discharge pressure volume (17), the discharge muffler arrangement (21) including a first tubular element (28) provided with a muffler inlet (29) fluidly connected to the discharge passage (16), an expansion chamber (33) fluidly connected to an inner volume of the first tubular element (28), and a second tubular element (35) including an inlet opening emerging in the expansion chamber (33) and an outlet opening fluidly connected to the discharge pressure volume (17).

公开(公告)号：US20180216616A1

公开(公告)日：2018-08-02

申请号：US15852200

申请日：2017-12-22

Applicant: DANFOSS COMMERCIAL COMPRESSORS S.A.

Inventor： Arnaud Daussin ,  Sebastien Denis ,  David Genevois ,  Remi Bou Dargham

IPC: F04C18/02 ,  F04C29/02

Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a drive shaft (16); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) cooperating with an inner circumferential bearing surface (32) of the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (50), the lubrication system including lubrication passages (41) formed within the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.2) emerging in the inner circumferential bearing surface (32) of a respective circular receiving hole (29) and at a predetermined position where low load is applied on the respective orbital disc during rotation of the drive shaft.

公开(公告)号：US10578109B2

公开(公告)日：2020-03-03

申请号：US15542487

申请日：2015-10-16

Applicant: Danfoss Commercial Compressors

Inventor： Arnaud Daussin ,  Patrice Bonnefoi ,  Yves Rosson ,  Ingrid Claudin

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

Abstract: A scroll compressor including a compression unit includes a first non-orbiting scroll having a receiving cavity and an orbiting scroll arrangement. The compression unit further includes a refrigerant suction part suitable for supplying the compression unit with a refrigerant flow, and a first anti-rotation device located in the receiving cavity and configured to prevent rotation of the orbiting scroll arrangement with respect to the first fixed non-orbiting scroll. The compression unit further includes an oil discharge device including an oil discharge passage, the oil discharge passage includes an oil inlet fluidly connected to the receiving cavity and at least one oil discharge outlet located in a refrigerant flow path and configured to supply the refrigerant flow with oil from the receiving cavity.

公开(公告)号：US20180355869A1

公开(公告)日：2018-12-13

申请号：US15992323

申请日：2018-05-30

Applicant: Danfoss Commercial Compressors

Inventor： Arnaud Daussin ,  Alain Picavet ,  Remi Bou Dargham

IPC: F04C29/04 ,  F04C23/00 ,  F04C29/12

CPC classification number: F04C29/045 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/12 ,  F04C2210/26 ,  F04C2240/30 ,  F04C2270/20

Abstract: The scroll compressor (2) includes an outer shell (4); a refrigerant suction inlet (7) formed in the outer shell (4) and configured to supply the scroll compressor (2) with refrigerant to be compressed; a compression unit (11) configured to compress refrigerant; a driving motor (21) configured to drive the compression unit (11) via a drive shaft (19); a fluid deflecting and dividing device (35) configured to divide a refrigerant suction flow entering the scroll compressor (2) through the refrigerant suction inlet (7) at least into a first flow (F1) and a second flow (F2). The fluid deflecting and dividing device (35) includes a first end (37) facing the refrigerant suction inlet (7) and a second end (38) which is closer to the compression unit (11) than the first end (37), the fluid deflecting and dividing device (35) being configured to guide the first flow (F1) towards the compression unit (11) and to guide the second flow (F2) towards the driving motor (21).

公开(公告)号：US20170241420A1

公开(公告)日：2017-08-24

申请号：US15521635

申请日：2015-09-08

Applicant: DANFOSS COMMERCIAL COMPRESSORS S.A.

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

IPC: F04C29/12 ,  F04C27/00 ,  F04C18/02

CPC classification number: F04C29/12 ,  F04C18/0215 ,  F04C18/0223 ,  F04C27/001

Abstract: This scroll compressor includes a scroll compression unit including a first fixed scroll including a first fixed base plate and a first fixed spiral wrap, an orbiting scroll arrangement (7) including a first orbiting spiral wrap (14), the first fixed spiral wrap and the first orbiting spiral wrap (14) forming a plurality of first compression chambers. The scroll compressor further includes a refrigerant suction part suitable for supplying the scroll compression unit with refrigerant to be compressed. The orbiting scroll arrangement (7) further includes a first orbiting guiding portion (21) extending from an outer end portion of the first orbiting spiral wrap (14) and configured to guide, in use, at least a part of the refrigerant supplied to the scroll compression unit towards the first compression chambers.

公开(公告)号：US11519408B2

公开(公告)日：2022-12-06

申请号：US17526190

申请日：2021-11-15

Applicant: Danfoss Commercial Compressors

Inventor： Arnaud Daussin ,  David Genevois ,  Remi Bou Dargham

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C15/00 ,  F04C2/02

Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including a plurality of orbital discs (28) respectively rotatably mounted in circular receiving cavities (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) configured to cooperate with an inner circumferential bearing surface (32) provided on the respective circular receiving cavity (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (36), the lubrication system including a plurality of oil reservoirs (43) each arranged in a bottom surface of a respective circular receiving cavity, and a plurality of oil stirring arrangements each configured to stir oil contained in a respective oil reservoir (43).

公开(公告)号：US11499553B2

公开(公告)日：2022-11-15

申请号：US17087954

申请日：2020-11-03

Applicant: Danfoss Commercial Compressors

Inventor： Remi Bou Dargham ,  Arnaud Daussin ,  Dominique Gross

IPC: F04C18/02 ,  F04C29/00

Abstract: The scroll compressor comprises a fixed scroll having a fixed end plate and a fixed spiral wrap extending from the fixed end plate; an orbiting scroll (9) having an orbiting end plate and an orbiting spiral wrap extending from the orbiting end plate, the fixed spiral wrap and the orbiting spiral wrap meshing with each other to form compression chambers; a vertical drive shaft (19) having a crankpin (21) at an upper end portion of the vertical drive shaft (19), the crankpin (21) including an outer circumferential surface (23) cooperating with an orbiting scroll bearing (24). The crankpin (21) includes a recess (25) formed in an axial end face (26) of the crankpin (21), the recess (25) and an upper portion (27) of the outer circumferential surface (23) defining therebetween a circumferential wall (28) extending along at least a part of the circumference of the crankpin (21), the circumferential wall (28) being deformable in a radial direction during operation of the scroll compressor.

公开(公告)号：US10746174B2

公开(公告)日：2020-08-18

申请号：US15852200

申请日：2017-12-22

Applicant: DANFOSS COMMERCIAL COMPRESSORS S.A.

Inventor： Arnaud Daussin ,  Sebastien Denis ,  David Genevois ,  Remi Bou Dargham

IPC: F04C18/02 ,  F04C29/02 ,  F01C17/06 ,  F04C23/00

Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a drive shaft (16); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) cooperating with an inner circumferential bearing surface (32) of the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (50), the lubrication system including lubrication passages (41) formed within the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.2) emerging in the inner circumferential bearing surface (32) of a respective circular receiving hole (29) and at a predetermined position where low load is applied on the respective orbital disc during rotation of the drive shaft.

公开(公告)号：US10281046B2

公开(公告)日：2019-05-07

申请号：US15576433

申请日：2016-05-19

Applicant: Danfoss Commercial Compressors

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

IPC: F01D11/02 ,  F16J15/447 ,  F04D29/08

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).