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公开(公告)号：US20200011334A1
公开(公告)日：2020-01-09
申请号：US16492192
申请日：2018-03-08
Applicant: Robert Bosch GmbH , Danfoss Commercial Compressors
Inventor： Clement Martignago , Patrice Bonnefoi , Stan Vandesteene , Yves Rosson
IPC: F04D17/12 , F04D29/16 , F04D29/046
Abstract: The centrifugal turbo-compressor (2) includes a hermetic casing; a drive shaft (6); a first and a second compression stage (12, 13) configured to compress a refrigerant and respectively including a first and a second impeller (18, 19) connected to the drive shaft (6) and being arranged in a back-to-back configuration; an interstage sealing device provided between the first and second impellers (18, 19). The hermetic casing includes a main casing portion (4) in which are arranged the first and second compression stages (12, 13) and the inter-stage sealing device. The first and second compression stage (12, 13) respectively includes a first and a second aerodynamic member (29, 31) each having an annular disc shape and respectively facing front-sides (21, 22) of the first and second impellers (18, 19).
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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).
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公开(公告)号：US09657738B2
公开(公告)日：2017-05-23
申请号：US14890216
申请日：2014-05-21
Applicant: Danfoss Commercial Compressors
Inventor： Patrice Bonnefoi , Yves Rosson , Ingrid Claudin
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).
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公开(公告)号：US09534599B2
公开(公告)日：2017-01-03
申请号：US14138258
申请日：2013-12-23
Applicant: DANFOSS COMMERCIAL COMPRESSORS
Inventor： Yves Rosson , Patrice Bonnefoi , Ingrid Claudin
CPC classification number: F04C29/0057 , F04C18/0207 , F04C18/0215 , F04C29/0021
Abstract: This scroll compressor includes first and second fixed scroll members, first and second orbiting scroll members, 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, and a second Oldham coupling provided between the second orbiting scroll member and the second fixed scroll member and configured to prevent rotation of the second orbiting scroll member with respect to the second fixed scroll member. The first Oldham coupling is slidably mounted with respect to the first fixed scroll member along a first displacement direction, and the second Oldham coupling is slidably mounted with respect to the second fixed scroll member along a second displacement direction parallel with respect to first displacement direction. First and second orbiting scroll members are configured to operate in phase opposition.
Abstract translation: 该涡卷压缩机包括第一和第二固定涡旋件，第一和第二绕动涡旋件，第一十字联轴器，设置在第一绕动涡旋件和第一固定涡旋件之间，并被构造成防止第一绕动涡旋件相对于 第一固定涡旋构件和设置在第二绕动涡旋构件和第二固定涡旋构件之间的第二十字联轴器，并且构造成防止第二绕动涡旋构件相对于第二固定涡旋构件旋转。 第一十字联轴器沿着第一位移方向相对于第一固定涡旋构件可滑动地安装，并且第二十字联轴节相对于第二固定涡旋构件沿着相对于第一位移方向平行的第二位移方向可滑动地安装。 第一和第二绕动涡旋件构造成相反地操作。
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公开(公告)号：US09377013B2
公开(公告)日：2016-06-28
申请号：US13715429
申请日：2012-12-14
Applicant: DANFOSS COMMERCIAL COMPRESSORS
Inventor： Patrice Bonnefoi , Dong Wang , Pierre Ginies , Ingrid Claudin
CPC classification number: F04B35/04 , F04C18/0215 , F04C23/008 , F04C28/08 , F04C29/021 , F04C29/025 , F04C29/026
Abstract: The oil injection device according to the invention includes an oil pump designed to be rotationally coupled to the electric motor of a compressor and including inlet and outlet ports, an oil injection duct connected to the first outlet port and designed to supply a compression stage of the compressor with oil, and an oil return duct connected to the first outlet port and designed to return the oil into an oil sump of the compressor. The pressure losses in the oil injection duct are primarily singular pressure losses proportional to the square of the oil flow rate passing through the oil injection duct. The pressure losses in the oil return duct are primarily pressure losses due to friction proportional to the oil flow rate passing through the oil return duct.
Abstract translation: 根据本发明的注油装置包括设计成可旋转地联接到压缩机的电动机并且包括入口和出口的油泵，连接到第一出口端口的油注入管道，并被设计成提供压缩级的压缩级 具有油的压缩机，以及连接到第一出口端口并被设计成将油返回到压缩机的油底壳中的回油管道。 注油管道中的压力损失主要是与通过注油管道的油流量平方成正比的奇异压力损失。 回油管中的压力损失主要是由于与通过回油管道的油流速成比例的摩擦而产生的压力损失。
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Patent Agency Ranking
公开(公告)号：US20220290671A1
公开(公告)日：2022-09-15
申请号：US17690517
申请日：2022-03-09
Applicant: Danfoss Commercial Compressors
Inventor： Patrice Bonnefoi
Abstract: The scroll compressor (1) includes a compression unit (6); a drive shaft (16) which is vertically orientated; upper and lower bearing arrangements (27, 28) configured to rotatably support the drive shaft (16); a centrifugal oil pump (29) including a pick-up tube (32) attached to a lower end portion (23) of the drive shaft (16) and provided with a oil inlet immersed in an oil sump (31), the centrifugal oil pump (29) being configured to deliver oil to the compression unit (6) and to the upper and lower bearing arrangements (27, 28); and a static fairing member (35) secured to a non-rotating part of the scroll compressor (1) and including a static tubular part (36) which is immersed in the oil sump (31) and which surrounds the pick-up tube (32) with a predetermined distance such that a gap is formed between the inner surface of the static tubular part (36) and the outer surface of the pick-up tube (32).
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公开(公告)号：US11242857B2
公开(公告)日：2022-02-08
申请号：US16492192
申请日：2018-03-08
Applicant: Robert Bosch GmbH , Danfoss Commercial Compressors
Inventor： Clement Martignago , Patrice Bonnefoi , Stan Vandesteene , Yves Rosson
IPC: F04D17/12 , F04D29/046 , F04D29/16
Abstract: The centrifugal turbo-compressor (2) includes a hermetic casing; a drive shaft (6); a first and a second compression stage (12, 13) configured to compress a refrigerant and respectively including a first and a second impeller (18, 19) connected to the drive shaft (6) and being arranged in a back-to-back configuration; an interstage sealing device provided between the first and second impellers (18, 19). The hermetic casing includes a main casing portion (4) in which are arranged the first and second compression stages (12, 13) and the inter-stage sealing device. The first and second compression stage (12, 13) respectively includes a first and a second aerodynamic member (29, 31) each having an annular disc shape and respectively facing front-sides (21, 22) of the first and second impellers (18, 19).
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公开(公告)号：US10605244B2
公开(公告)日：2020-03-31
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
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.
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公开(公告)号：US20180274543A1
公开(公告)日：2018-09-27
申请号：US15542487
申请日：2015-10-16
Applicant: Danfoss Commercial Compressors
Inventor： Arnaud Daussin , Patrice Bonnefoi , Yves Rosson , Ingrid Claudin
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.
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公开(公告)号：US20180142694A1
公开(公告)日：2018-05-24
申请号：US15735301
申请日：2016-06-20
Applicant: DANFOSS COMMERCIAL COMPRESSORS
Inventor： Arnaud Daussin , Patrice Bonnefoi , Nicolas Nouyrigat
IPC: F04D29/10 , F04D29/051 , F04D29/056
CPC classification number: F04D29/102 , F04D17/12 , F04D17/122 , F04D25/06 , F04D29/051 , F04D29/053 , F04D29/056 , F04D29/286
Abstract: The centrifugal compressor includes an hermetic housing; a drive shaft (4); a first and a second compression stage (8, 9) configured to compress a refrigerant, the first and second compression stages (8, 9) respectively including a first and a second impeller (18, 19), the first and second impellers (18, 19) being connected to the drive shaft (4) and being arranged in a back-to-back configuration; a radial annular groove (27) formed between the back-sides (25, 26) of the first and second impellers (18, 19); an inter-stage sealing arrangement (35) provided between the first and second compressor stages (8, 9) and in the radial annular groove (27); a radial bearing arrangement configured to rotatably support the drive shaft (4); and a thrust bearing arrangement configured to limit an axial movement of the drive shaft (4) during operation. The diameter of the inter-stage sealing arrangement (35) is configured to minimize the amplitude of the axial load applying on the thrust bearing arrangement during operation of the centrifugal compressor (2).
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