Lg Electronics Inc.

Munyoung Lee

Honggyun Jin

Nara Han

Sangwoo Joo

Sihyun Jang

A rotation shaft of a scroll compressor that includes an oil flow path formed therein, an upper frame support portion which is inserted into an upper frame, a boss insertion portion which is recessed from an upper surface of the upper frame support portion for insertion of the boss portion, and an oil residual groove which is recessed at a predetermined depth from a bottom portion of the boss insertion portion.

Scroll compressor having a rotation shaft with an oil flow path formed therein

A scroll compressor is provided that may include a casing, a discharge cover fixed inside of the casing, a first scroll revolved a rotational shaft, a second scroll provided on the first scroll to define compression chambers, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber of the compression chambers having an intermediate pressure, a back pressure plate provided on the second scroll and 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 and defining a back pressure chamber, and a sealing member provided between the back pressure plate and the floating plate, the sealing member including 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.

Sealing member, scroll compressor including a sealing member and method for manufacturing a sealing member for a scroll compressor

A scroll compressor is provided that may include a first scroll, a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll having a discharge hole that communicates with a compression chamber among the plurality of compression chambers, a back pressure plate that defines a back pressure chamber to accommodate a refrigerant discharged from the discharge hole, a floating plate to define the back pressure chamber, and a sealing member to prevent the refrigerant from flowing between a first surface, which may be a sliding surface of the floating plate, and a second surface, which may face the first surface, of the back pressure plate. The sealing member may include a seal cover that contacts the other one of the first and second surfaces, and a seal, a portion of which may be accommodated in the seal cover. The seal cover may have a friction coefficient less than a friction coefficient of the seal.

Scroll compressor

A scroll compressor having a scroll supporter and/or movement limiter is provided. The scroll compressor may include a casing, a main frame fixedly installed within the casing, a first scroll rotatably supported by the main frame, a second scroll supported by the main frame, such that the second scroll is movable in a vertical direction with respect to the first scroll, a guide that guides movement of the second scroll in the vertical direction, while preventing the second scroll from being rotated in an axial direction; and a movement limiter disposed on an inner wall of the casing and separated from the second scroll, the movement limiter being configured to limit a movement distance of the second scroll in an upward direction.

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Seoul, South Korea

Munyoung Lee