Rotary compressor with wear avoiding portion
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United States of America Patent
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-
Aug 30, 2022
Grant Date -
Nov 19, 2020
app pub date -
Apr 2, 2020
filing date -
May 17, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A rotary compressor may include a rotary shaft; a plurality of plates that supports the rotary shaft; a cylinder provided between the plurality of plates to define a compression space, and provided with a vane slot; a roller slidably coupled to the rotary shaft inside of the cylinder, and having a hinge groove on an outer circumferential surface thereof; and a vane, a first end which is slidably coupled to the vane slot of the cylinder, and a second end of which is rotatably coupled to the hinge groove of the roller. At least one of axial end surfaces of the roller facing the plurality of plates is provided with a wear avoiding portion having a predetermined depth. Contact surfaces between the roller and the plate may be suppressed from being in close contact with each other to suppress the roller or the plate from being damaged or a performance of the compressor due to friction loss from being deteriorated, thereby improving reliability and performance of the compressor.
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