# US 2021/0277897 A1 · Compressor apparatus and manufacturing method of the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0277897 A1 - Document ID: US20210277897A1 - Status: Published application - Kind: A1 - Application number: 17/260,098 - Filed: 2019-07-12 - Published: 2021-09-09 - Earliest claimed: 2018-07-13 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Kangwook LEE; Jungsun CHOI; Cheolhwan KIM - Web page: https://patentgrep.com/patent/US20210277897A1 ## CPC - F04C 18/0215: {where only one member is moving} - F04C 23/008: {Hermetic pumps} - F04C 2230/60: Assembly methods - F04C 2230/603: Centering; Aligning - F04C 2240/30: Casings or housings - F04C 2240/805: Fastening means, e.g. bolts - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract Provided is a compressor apparatus comprising: a casing defining appearance of the apparatus; and a drive portion coupled to an inner circumferential surface of the casing and configured to rotate a rotatable shaft; a compression portion coupled to the rotatable shaft and configured to compress fluid, wherein the compression portion apparatus is characterized in that the drive portion and the compression portion are fixed to the fastening member which is detachably attached to at least one of the side face of the drive portion or the side face of the compression portion and thus, the combination of the drive portion and the compression portion is coupled to an inner circumferential surface of the casing. Further, provided is a manufacturing method of the compression portion apparatus. ## Claims ### Claim at position 1 1-14. (canceled) ### Claim 15 A compressor apparatus comprising: a casing; and a driver coupled to the casing and configured to rotate a rotatable shaft; a compression portion coupled to the rotatable shaft and configured to compress fluid; a plurality of drive collection channels defined at an outer circumferential surface of the driver and configured to allow fluid to pass therealong; a plurality of compression collection channels defined at an outer circumferential surface of the compression portion and positioned to correspond to the plurality of drive collection channels, the plurality of compression collection channels being configured to allow fluid to pass therealong; and at least one of a first fastener or a second fastener, the first fastener configured to be detachably coupled to at least one of the plurality of drive collection channels and at least one of the plurality of compression collection channels to thereby fix the driver to the compression portion, the second fastener configured to be detachably coupled to at least one of the plurality of drive collection channels or at least one of the plurality of compression collection channels to thereby fix the driver to the compression portion, wherein the driver and the compression portion that are fixed to each other by the at least one of the first fastener or the second fastener are coupled to the casing. ### Claim 16 (depends on 15) The compressor apparatus of claim 15, wherein the plurality of drive collection channels have a same width as the plurality of compression collection channels. ### Claim 17 (depends on 16) The compressor apparatus of claim 16, wherein the plurality of drive collection channel and the plurality of compression collection channels have a same cross-sectional shape as a cross-sectional shape of the first fastener. ### Claim 18 (depends on 15) The compressor apparatus of claim 15, wherein at least one of the plurality of compression collection channels has a different cross-sectional shape from at least one of the plurality of drive collection channels ### Claim 19 (depends on 18) The compressor apparatus of claim 18, wherein at least a portion of the at least one of the plurality of drive collection channels has a cross-sectional area that is smaller than a cross-sectional area of the at least one of the plurality of compression collection channels. ### Claim 20 (depends on 15) The compressor apparatus of claim 15, wherein the compression portion and the driver simultaneously contact the casing based on the compression portion and the driver being inserted into the casing. ### Claim 21 (depends on 15) The compressor apparatus of claim 15, wherein the compression portion and the driver are configured to be separated from the at least one of the first fastener or the second fastener based on the compression portion and the driver being coupled to the casing. ### Claim 22 (depends on 15) The compressor apparatus of claim 15, wherein the compression portion and the driver are configured to, based on the compression portion and the driver being inserted into the casing, be coupled to the at least one of the first fastener or the second fastener. ### Claim 23 (depends on 22) The compressor apparatus of claim 22, wherein the first fastener includes: a mounting body configured to be mounted to one end of the casing; an inserted portion extending from the mounting body and configured to be inserted into the casing; and a seat extending from the inserted portion and defining a mounting position of at least one of the driver or the compression portion. ### Claim 24 (depends on 23) The compressor apparatus of claim 23, wherein the first fastener further includes: an extension extending from the mounting body toward a refrigerant inflow pipe that is coupled to the casing; and a fixed pin extending from the extension and configured to be inserted into the refrigerant inflow pipe and detachably coupled to the compression portion. ### Claim 25 A method for manufacturing a compressor apparatus, wherein the apparatus includes: a casing; a driver coupled to the casing and configured to rotate a rotatable shaft; and a compression portion coupled to the rotatable shaft and disposed within the casing, the compression portion being configured to compress fluid, wherein the method comprises: assembling the compression portion with the driver outside the casing, inserting an assembly of the compression portion and the driver into the casing, and coupling the assembly of the compression portion and the driver to the casing, coupling a fastener to the compression portion and the driver, the fastener configured to restrict rotation of at least one of the compression portion or the driver, the fastener configured to restrict radial movement of the rotatable shaft or movement of at least one of the compression portion or the driver in a longitudinal direction of the rotatable shaft. ### Claim 26 (depends on 25) The method of claim 25, wherein the fastener is configured to be coupled to a side face of the compression portion and a side of the driver. ### Claim 27 (depends on 25) The method of claim 25, wherein coupling a fastener to the compression portion and the driver includes: fixing the fastener to an outer circumferential surface of the compression portion and an outer circumferential surface of the driver; and fixing the fastener to (i) the outer circumferential surface of one of the compression portion and the driver and (ii) an end face of the other of the compression portion and the driver. ### Claim 28 (depends on 25) The method of claim 25, further comprising: separating the fastener from the casing. ### Claim 29 (depends on 27) The method of claim 27, wherein coupling a fastener to the compression portion and the driver includes: fixing a refrigerant inflow pipe in fluid communication with the casing, and fixing an inflow hole of the compression portion to the fastener. ### Claim 30 (depends on 29) The method of claim 29, wherein the fastener includes: a mounting body configured to be mounted to one end of the casing; an inserted portion extending from the mounting body and configured to be inserted into the casing; and a seat extending from the inserted portion and defining a mounting position of at least one of the driver or the compression portion. ### Claim 31 (depends on 30) The method of claim 30, wherein the fastener further includes: an extension extending from the mounting body toward a refrigerant inflow pipe that is coupled to the casing; and a fixed pin extending from the extension and configured to be inserted into the refrigerant inflow pipe and detachably coupled to the compression portion. ### Claim 32 (depends on 31) The method of claim 31, wherein fixing an inflow hole of the compression portion to the fastener includes: fixing the inflow hole of the compression portion to the fixed pin of the fastener. ### Claim 33 (depends on 15) The compressor apparatus of claim 15, wherein the plurality of drive collection channels are partially recessed at the outer circumferential surface of the driver. ### Claim 34 (depends on 33) The compressor apparatus of claim 33, wherein the plurality of compression collection channels are partially recessed at the outer circumferential surface of the compression portion.