公开(公告)号：US20230407869A1

公开(公告)日：2023-12-21

申请号：US18249277

申请日：2021-11-24

Applicant: Danfoss Commercial Compressors

Inventor： Arnaud DAUSSIN ,  David GENEVOIS ,  Remi BOU DARGHAM

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

CPC classification number: F04C29/0021 ,  F04C23/008 ,  F04C18/0215 ,  F04C2240/807 ,  F04C2230/20 ,  F04C29/02

Abstract: The counterweight (26) is manufactured by an additive manufacturing process and includes a mounting portion (28) having a first density and a mass portion (29) having a second density, the mass portion (29) being formed radially outward of the mounting portion (28), wherein the first density of the mounting portion (28) and the second density of the mass portion (29) are different from each other, and wherein the mass portion (29) includes at least a first segment (29.1) having a first segment density and a second segment (29.2) having a second segment density which is different from the first segment density.

公开(公告)号：US20250129781A1

公开(公告)日：2025-04-24

申请号：US18910666

申请日：2024-10-09

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Remi Bou DARGHAM ,  Arnaud DAUSSIN

IPC: F04C29/02 ,  F04C18/02 ,  F04C28/08

Abstract: A scroll compressor comprising a compressor casing; a compression unit including a fixed scroll and an orbiting scroll defining a compression volume; an oil sump; a drive shaft including a driving portion coupled with the orbiting scroll; a variable-speed electric motor configured to rotatably drive the drive shaft; an oil injection system including an oil feed channel fluidly connected to the oil sump and extending over the entire length of the drive shaft, and oil injection means provided on the orbiting scroll and configured to deliver oil from the oil feed channel to the compression volume; and an oil flow regulating device configured to regulate an oil flow from the oil feed channel to the oil injection means.

公开(公告)号：US20250012490A1

公开(公告)日：2025-01-09

申请号：US18757606

申请日：2024-06-28

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Jean-Jacques LAISSUS ,  Arnaud DAUSSIN ,  Remi Bou DARGHAM ,  Alexis DELORME

IPC: F25B31/00 ,  F25B7/00

Abstract: The multi-compressor refrigeration system comprising a controller and a multi-compressor device including at least three compressors which are coupled in parallel, each compressor equipped with an oil sump and an oil level detection device, the compressors divided into two groups each including at least one compressor; suction fittings of the compressors that are fluidly connected by a common suction line and oil sumps that are fluidly connected by a common oil equalization line. The multi-compressor device includes an oil pumping device located in the common oil equalization line and between the two groups, and at least one valve located in the common oil equalization line and configured to control an oil flow between the oil pumping device and at least one compressor of a group associated with the at least one valve.

公开(公告)号：US20220372975A1

公开(公告)日：2022-11-24

申请号：US17771851

申请日：2020-11-02

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Remi BOU DARGHAM ,  Arnaud DAUSSIN ,  David GENEVOIS

IPC: F04C18/02

Abstract: 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).