公开(公告)号：US20220412359A1

公开(公告)日：2022-12-29

申请号：US17840944

申请日：2022-06-15

Applicant: Danfoss Commercial Compressors

Inventor： Patrice BONNEFOI ,  Gabriel STREDA ,  Yves ROSSON ,  Jean-Jacques LAISSUS ,  Alexis DELORME

IPC: F04C29/02 ,  F04C18/02

Abstract: The refrigerant compressor includes a compressor casing (2); an oil sump (13) arranged in the compressor casing (2); and an oil level sensor arrangement (14) configured to detect an oil level in the oil sump (13), the oil level sensor arrangement (14) including a tubular element (16) secured to the compressor casing (2) and a floating element (17) surrounding the tubular element (16) and being movably mounted with respect to the tubular element (16). The compressor casing (2) includes a passage opening (24) and dimensions of the tubular element (16), the floating element (17) and the passage opening (24) are defined to allow an insertion and a removal of the tubular element (16) and the floating element (17) into and out of the compressor casing (2) through the passage opening (24).

公开(公告)号：US20130177404A1

公开(公告)日：2013-07-11

申请号：US13732847

申请日：2013-01-02

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Jean BERNARDI ,  Patrice BONNEFOI ,  Xavier DURAND ,  Fabien GALL ,  Jean-Francois LE COAT

IPC: F04D29/00

CPC classification number: F04D29/00 ,  F04B39/0207 ,  F04B39/0238 ,  F04B39/121 ,  F04B41/06 ,  F04B49/02 ,  F04C23/001 ,  F04C23/008 ,  F04C28/02 ,  F04C29/02 ,  F04C2270/24 ,  F25B31/004 ,  F25B2400/02 ,  F25B2400/075

Abstract: This compression device comprises first and second compressors mounted in parallel, a suction line intended to be connected to an outlet of an evaporator, first and second suction conduits arranged for putting the suction line respectively in communication with the admission orifices of the first and second compressors, and an oil level equalization conduit connecting the oil pans of the first and second compressors. The compression device further comprises an oil separator mounted on the suction line or on the second suction conduit, and an oil return conduit arranged for connecting an oil outflow orifice of the oil separator to the oil pan of the first compressor.

Abstract translation: 该压缩装置包括平行安装的第一和第二压缩机，用于连接到蒸发器的出口的吸入管线，第一和第二抽吸管道，其布置成将吸入管线分别与第一和第二压缩机的入口孔连通 以及连接第一和第二压缩机的油盘的油位平衡导管。 压缩装置还包括安装在吸入管线或第二吸入管道上的油分离器，以及设置成将油分离器的出油孔连接到第一压缩机油盘的回油管道。

公开(公告)号：US20130156623A1

公开(公告)日：2013-06-20

申请号：US13715214

申请日：2012-12-14

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Patrice BONNEFOI ,  Feifei WANG

IPC: F04C18/00

CPC classification number: F04C18/00 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/06 ,  F04C28/08 ,  F04C29/025

Abstract: The compressor includes a sealed enclosure containing a compression stage, an electric motor having a stator and a rotor, an oil pump rotationally coupled to the rotor, including an oil inlet port connected to an oil sump, and control means arranged to command the operation of the motor in a start-up mode in which the rotor is rotated at a first speed of rotation included in a first speed range, and a normal operating mode in which the rotor is rotated at a second speed of rotation included in a second speed range higher than the first speed range. The compressor includes an oil injection device having an oil injection duct connected to a first oil outlet port of the oil pump and arranged to supply the compression stage with oil.

Abstract translation: 该压缩机包括：包含压缩级的密封外壳，具有定子和转子的电动马达，与该转子相连接的包括连接到油底壳的进油口的油泵，以及控制装置， 所述电动机处于其中所述转子以包括在第一速度范围内的第一转速旋转的启动模式，以及所述转子以包括在第二速度范围内的第二转速旋转的正常操作模式 高于第一速度范围。 压缩机包括注油装置，该注油装置具有连接到油泵的第一出油口并被设置成向压缩级供应油的注油管道。

公开(公告)号：US20130156612A1

公开(公告)日：2013-06-20

申请号：US13715429

申请日：2012-12-14

Applicant: DANFOSS COMMERCIAL COMPRESSORS

Inventor： Patrice BONNEFOI ,  Dong WANG ,  Pierre GINIES ,  Ingrid CLAUDIN

IPC: F04B35/04

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。