公开(公告)号：US20170342983A1

公开(公告)日：2017-11-30

申请号：US15390221

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun JIN ,  Sangwoo JOO

IPC: F04C28/26 ,  F04C28/18 ,  F04C18/02 ,  F04C29/00 ,  F04C29/12

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage configured to bypass a refrigerant of the compression chamber into the casing, an opening/closing valve assembly configured to open and close the communication passage, and a switching valve assembly configured to operate the opening/closing valve assembly, the switching valve assembly being provided outside the casing and connected to the opening/closing valve assembly, whereby an installation of the bypass hole can result in prevention of over-compression and an installation of a control valve for varying a capacity outside the casing can result in reduction of costs for the control valve.

公开(公告)号：US20170342984A1

公开(公告)日：2017-11-30

申请号：US15390246

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun JIN ,  Sangwoo JOO

IPC: F04C28/26 ,  F04C28/18 ,  F04C18/02 ,  F04C29/00 ,  F04C29/12

CPC classification number: F04C28/26 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/18 ,  F04C29/0085 ,  F04C29/124 ,  F04C2240/30

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage communicating inside and outside of the compression chamber with each other, an opening/closing valve assembly provided outside the non-orbiting member within the casing and opening and closing the communication passage, and a switching valve assembly provided within the casing and operating the opening/closing valve assembly, whereby a facilitated fabrication, improved valve responsiveness and a relaxed restriction for a specification of a valve can be achieved, and also an over-compression can be prevented by an installation of a check valve, and an assembling efficiency can be improved by installing two valve assemblies outside the non-orbiting member.

公开(公告)号：US20170241417A1

公开(公告)日：2017-08-24

申请号：US15388584

申请日：2016-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun JIN ,  Sangwoo JOO

IPC: F04C28/26 ,  F04C18/02

CPC classification number: F04C28/26 ,  F04C18/0215 ,  F04C18/0261 ,  F04C18/0292 ,  F04C23/008 ,  F04C28/10 ,  F04C29/126 ,  F04C2240/30 ,  F04C2240/808

Abstract: A scroll compressor according to the present invention includes a casing having a hermetic inner space divided into a low pressure portion and a high pressure portion, an orbiting scroll disposed within the inner space of the casing and performing an orbiting motion, a non-orbiting scroll forming a compression chamber together with the orbiting scroll, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a back pressure chamber assembly coupled to the non-orbiting scroll to form a back pressure chamber, a valve accommodation groove formed on at least one of the non-orbiting scroll or the back pressure chamber assembly, a bypass hole formed from the intermediate pressure chamber into the valve accommodation groove in a penetrating manner, a check valve accommodated in the valve accommodation groove and opening and closing the bypass hole according to pressure of the intermediate pressure chamber, a communication passage communicating the valve accommodation groove and the low pressure portion with each other, and a control valve selectively opening and closing the communication passage, whereby a facilitated fabrication, improved responsiveness and relaxed restriction for a specification of a valve can be achieved.

公开(公告)号：US20160160859A1

公开(公告)日：2016-06-09

申请号：US14948928

申请日：2015-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun JIN ,  Munyoung LEE ,  Sangwoo JOO

IPC: F04C27/00 ,  F16J15/3224 ,  B29C45/37 ,  F04C18/02

CPC classification number: F16J15/3224 ,  B29C33/005 ,  B29C45/0025 ,  B29C2045/0034 ,  B29L2031/26 ,  B29L2031/265 ,  F01C19/005 ,  F04C18/0215 ,  F04C23/008 ,  F04C27/003 ,  F04C2230/21 ,  F16J15/3204

Abstract: A sealing member, a scroll compressor, and a method for manufacturing a sealing member for a scroll compressor are provided. The scroll compressor may include a casing in which a rotational shaft may be provided, a discharge cover fixed to an inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll revolved by rotation of the rotational shaft, a second scroll provided on the first scroll to define a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber of the plurality of compression chambers having an intermediate pressure, a back pressure plate provided on the second scroll, the back pressure plate having an intermediate pressure suction hole that communicates with the intermediate pressure discharge hole, a floating plate movably provided at a side of the back pressure plate to define a back pressure chamber together with the back pressure plate, and a sealing member provided between a surface of the back pressure plate and a surface of the floating plate to prevent a refrigerant from leaking from the back pressure chamber. The sealing member may include a sealing body, and at least one protrusion provided at an incline with respect to a central line that extends in a horizontal direction of the sealing body.

Abstract translation: 提供一种密封构件，涡旋压缩机以及用于制造涡旋压缩机的密封构件的方法。 涡卷压缩机可以包括可以设置旋转轴的壳体，固定到壳体内部的排出盖，以将壳体的内部分隔成吸入空间和排出空间，第一涡旋通过旋转轴旋转 旋转轴，设置在第一涡旋件上以与第一涡旋件一起限定多个压缩室的第二涡旋件，第二涡旋件具有与具有中间压力的多个压缩室的压缩室连通的中间压力排出孔， 设置在所述第二涡旋盘上的背压板，所述背压板具有与所述中间压力排出孔连通的中间压力吸入孔，可移动地设置在所述背压板的一侧的浮动板，以与背压室一起限定背压室， 背压板和设置在背压板的表面和a之间的密封构件 浮板的表面，以防止制冷剂从背压室泄漏。 密封构件可以包括密封体，以及设置在相对于在密封体的水平方向上延伸的中心线的倾斜处的至少一个突起。