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51. 发明申请

US20220372975A1 SCROLL COMPRESSOR INCLUDING A FIRST AND A SECOND AXIAL STABILIZING ARRANGEMENT 有权
公开(公告)号：US20220372975A1
公开(公告)日：2022-11-24
申请号：US17771851
申请日：2020-11-02
申请人： DANFOSS COMMERCIAL COMPRESSORS
发明人： Remi BOU DARGHAM , Arnaud DAUSSIN , David GENEVOIS
IPC分类号： F04C18/02
摘要： The scroll compressor includes a fixed scroll (8) having a fixed end plate (11) and a fixed spiral wrap (12) extending from the fixed end plate (11); an orbiting scroll (9) having an orbiting base plate (14) and an orbiting spiral wrap (15) extending from a first face of the orbiting base plate (14), the orbiting spiral wrap (15) of the orbiting scroll (9) meshing with the fixed spiral wrap (12) of the fixed scroll (8) to form compression chambers (18), the orbiting base plate (14) having a flange portion (16) radially extending on at least part of the circumference of the orbiting base plate (14) and beyond an outer wall surface of the orbiting spiral wrap (15); and a first and a second axial stabilizing arrangement (29, 31) configured to axially stabilize the orbiting scroll (9), the first axial stabilizing arrangement (29) being formed between the flange portion (16) of the orbiting base plate (14) and the fixed scroll (8), and the second axial stabilizing arrangement (31) being formed between a portion of the orbiting spiral wrap (15) of the orbiting scroll (9) and the fixed end plate (11) of the fixed scroll (8).

52. 发明申请

US20220290671A1 SCROLL COMPRESSOR HAVING A CENTRIFUGAL OIL PUMP 有权
公开(公告)号：US20220290671A1
公开(公告)日：2022-09-15
申请号：US17690517
申请日：2022-03-09
申请人： Danfoss Commercial Compressors
发明人： Patrice Bonnefoi
IPC分类号： F04C23/00 , F04B39/02 , F04C18/02 , F04C29/02
摘要： 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).

53. 发明申请

US20220170466A1 SCROLL COMPRESSOR PROVIDED WITH A DISCHARGE PORT DEFLECTOR 有权
公开(公告)号：US20220170466A1
公开(公告)日：2022-06-02
申请号：US17528262
申请日：2021-11-17
申请人： Danfoss Commercial Compressors
发明人： Julien Lavy , Alain Laville , Sebastien Sababady
IPC分类号： F04C29/12 , F04C18/02
摘要： The scroll compressor (1) includes a compressor shell (2) having a discharge outlet (4); a fixed scroll (7) arranged within the compressor shell (2) and including a fixed base plate (11) and a discharge passage (16) which is formed in the fixed base plate (11) and which is provided with a discharge port (17) emerging into a discharge pressure volume (18) at least partially defined by the compressor shell (2) and the fixed scroll (7); and a deflector (29) arranged in the discharge pressure volume (18), the deflector (29) covering the discharge port (17) and at least partially delimiting a discharge opening (31) facing the discharge outlet (4) of the compressor shell (2), the deflector (29) being configured to force a compressed refrigerant gas flow emerging from the discharge port (17) to smoothly shift from an axial direction to a radial direction and being configured to direct said compressed refrigerant gas flow towards the discharge outlet (4).

54. 发明授权

US11319956B2 Scroll compressor provided with an orbital disc lubrication system 有权
公开(公告)号：US11319956B2
公开(公告)日：2022-05-03
申请号：US16911565
申请日：2020-06-25
申请人： Danfoss Commercial Compressors
发明人： Mickael Bron , Rémi Bou Dargham , Yusong Sun
IPC分类号： F04C18/02 , F04C29/02
摘要： The scroll compressor includes a fixed scroll; an orbiting scroll (8); a drive shaft (16); a support arrangement (5) 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, 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) configured to cooperate with an inner circumferential bearing surface (32) provided on 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, the lubrication system including an oil reservoir (38) in which part of the oil supplied to the lubrication system is collected during operation of the scroll compressor, and a plurality of lubrication passages (41) provided on the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.2) emerging in a bottom surface of a respective circular receiving hole (29) and an oil inlet aperture (41.1) emerging in the receiving chamber (27).

55. 发明授权

US11242857B2 Centrifugal turbo-compressor 有权
公开(公告)号：US11242857B2
公开(公告)日：2022-02-08
申请号：US16492192
申请日：2018-03-08
申请人： Robert Bosch GmbH , Danfoss Commercial Compressors
发明人： Clement Martignago , Patrice Bonnefoi , Stan Vandesteene , Yves Rosson
IPC分类号： F04D17/12 , F04D29/046 , F04D29/16
摘要： 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).

56. 发明申请

US20210131431A1 SCROLL COMPRESSOR INCLUDING A CRANKPIN HAVING AN UPPER RECESS 有权
公开(公告)号：US20210131431A1
公开(公告)日：2021-05-06
申请号：US17087954
申请日：2020-11-03
申请人： Danfoss Commercial Compressors
发明人： Remi Bou Dargham , Arnaud Daussin , Dominique Gross
IPC分类号： F04C18/02 , F04C23/00
摘要： 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.

57. 发明授权

US10753360B2 Scroll compression device having a sealing device, and scroll compressor including such a scroll compression device 有权
公开(公告)号：US10753360B2
公开(公告)日：2020-08-25
申请号：US16071155
申请日：2017-02-15
申请人： Danfoss Commercial Compressors
发明人： Remi Bou Dargham , David Genevois , Dominique Gross
IPC分类号： F01C19/08 , F04C18/02 , F04C29/00 , F04C27/00 , F04C23/00
摘要： The scroll compression device includes a first scroll element (11) having a first base plate (13) and a first spiral wrap (14); a second scroll element (12) having a second base plate (15) and a second spiral wrap (16), one of the first and second scroll elements (11, 12) being configured to perform an orbiting movement in relation to the other one of the first and second scroll elements, the first and second scroll elements (11, 12) intermeshing with each other and delimiting compression chambers (17); and a sealing device (28) arranged in an end face (19) of the first spiral wrap (14) and having a sealing surface configured to cooperate with the second base plate (15). The sealing device (28) is configured to allow fluid flow from an upstream compression chamber to a downstream compression chamber through the sealing surface when the pressure in the upstream compression chamber exceeds the pressure in the downstream compression chamber, and the sealing device (28) is configured to prevent fluid flow from a downstream compression chamber to an upstream compression chamber through the sealing surface when the pressure in the downstream compression chamber exceeds the pressure in the upstream compression chamber.

58. 发明授权

US10605244B2 Scroll compressor provided with an orbiting guiding portion for improving the filling of the compression chambers 有权
公开(公告)号：US10605244B2
公开(公告)日：2020-03-31
申请号：US15521635
申请日：2015-09-08
申请人： DANFOSS COMMERCIAL COMPRESSORS S.A.
发明人： Nicolas Nouyrigat , Patrice Bonnefoi , Yves Rosson , Ingrid Claudin , Arnaud Daussin
IPC分类号： F01C1/02 , F04C18/02 , F04C29/12 , F04C27/00
摘要： 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.

59. 发明授权

US10472967B2 Oldham coupling for a scroll compressor 有权
公开(公告)号：US10472967B2
公开(公告)日：2019-11-12
申请号：US15647343
申请日：2017-07-12
申请人： Danfoss Commercial Compressors
发明人： Yves Rosson , Philippe Dugast
IPC分类号： F01C17/06 , F04C18/02 , F16D3/04 , F04C23/00
摘要： An Oldham coupling includes an annular ring having a first side and a second side opposite to the first side, a first and a second engaging groove that are diametrically opposed and located on the first side, and a third and a fourth engaging groove that are diametrically opposed and located on the second side. The first and second engaging grooves are configured to be engaged with a first and a second engaging projection provided on a fixed element. The third and fourth engaging grooves are configured to be engaged with a third and a fourth engaging projection provided on an orbiting scroll. The first and third engaging grooves are located in a first angular sector, and the second and fourth engaging grooves are located in a second diametrically opposed angular sector of the annular ring, the first and second angular sectors have an opening angle less than 40°.

60. 发明申请

US20190063432A1 SCROLL COMPRESSOR HAVING A CENTRAL MAIN DISCHARGE PORT AND AN AUXILIARY DISCHARGE PORT 审中-公开
公开(公告)号：US20190063432A1
公开(公告)日：2019-02-28
申请号：US16108693
申请日：2018-08-22
申请人： Danfoss Commercial Compressors
发明人： Sebastien Denis , David Genevois , Julien Lavy
IPC分类号： F04C18/02 , F04C29/12
摘要： The scroll compressor comprises a fixed scroll element comprising a fixed end plate (13) and a fixed spiral wrap (14); an orbiting scroll element comprising an orbiting end plate and an orbiting spiral wrap (16), the fixed and orbiting spiral wraps (14, 16) being intermeshed with each other to define pairs of compression pockets, a radial inner pair of compression pockets comprising a direct pocket (17.1) and an indirect pocket (17.2); a central main discharge port (18) formed in the fixed end plate (13) and configured to communicate the direct pocket (17.1) with a discharge pressure volume; and an auxiliary discharge port (26) formed in the fixed end plate (13) at a position close to an outer wall side (14.2) of the fixed spiral wrap (14) and adjacent the inner end (14.4) of the fixed spiral wrap (14). The auxiliary discharge port (26), during orbiting movement of the orbiting scroll element (12), is at least partially uncovered by the orbiting spiral wrap (16) to communicate the indirect pocket (17.2) with the discharge pressure volume.

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