# US 2024/0200838 A1 · Evaporative condenser > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0200838 A1 - Document ID: US20240200838A1 - Status: Published application - Kind: A1 - Application number: 18/480,607 - Filed: 2023-10-04 - Published: 2024-06-20 - Earliest claimed: 2022-12-20 - Assignees: Kyungdong Navien Co., Ltd. - Applicants: Kyungdong Navien Co., Ltd. - Inventors: Jae Hyun HAN; Myoung Seop LEE; Chul Ki JEONG - Web page: https://patentgrep.com/patent/US20240200838A1 ## CPC - F25B 39/04: Condensers - F28B 1/02: using water or other liquid as the cooling medium - F28D 1/05391: {with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators} - F28D 5/00: Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation - F28F 9/028: {by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels} - F25B 2339/041: of evaporative condensers - F28F 1/022: {with multiple channels} - F28F 1/128: {Fins with openings, e.g. louvered fins} - F28F 9/0202: {Header boxes having their inner space divided by partitions} - F28F 9/0214: {having only longitudinal partitions} - F28F 2215/04: Assemblies of fins having different features, e.g. with different fin densities - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F28B: STEAM OR VAPOUR CONDENSERS (condensation of vapours B01D5/00; steam engine plants having condensers F01K; liquefaction of gases F25J; details of heat-exchange and heat-transfer arrangements of general application F28F) - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) ## Abstract An evaporative condenser includes N header rows including a first header extending in a first direction and having a flow path therein, a second header extending in the first direction and having a flow path therein, and a plurality of connecting tubes extending in a second direction between the first header and the second header and connecting the flow paths of the first header and the second header, the N header rows being stacked in a third direction, where N is a natural number greater than or equal to 2. The first to third directions are directions orthogonal to each other, the connecting tube of one header row is spaced apart from the connecting tube of an adjacent header row by a first distance, a fin member providing a flow path in the third direction is disposed between the connecting tubes. ## Claims ### Claim 1 An evaporative condenser comprising: N header rows including a first header extending in a first direction and having a flow path therein, a second header extending in the first direction and having a flow path therein, and a plurality of connecting tubes extending in a second direction between the first header and the second header and connecting the flow paths of the first header and the second header, the N header rows being stacked in a third direction, where N is a natural number greater than or equal to 2, wherein the first to third directions are directions orthogonal to each other, the connecting tube of one header row is spaced apart from the connecting tube of an adjacent header row by a first distance, a fin member providing a flow path in the third direction is disposed between the connecting tubes, the fin members are connected to each other in the third direction and are offset fin members in which a first fin disposed in a first position in the second direction and a second fin disposed in a second position different from the first position in the second direction are alternately connected, and at least a portion of the first fin and second fin is a long fin of which a length in the third direction is greater than the first distance. ### Claim 2 (depends on 1) The evaporative condenser of claim 1, wherein at least a portion of the long fin is disposed in a position between the connecting tubes in the third direction. ### Claim 3 (depends on 2) The evaporative condenser of claim 2, wherein the first fin includes the long fin and a short fin shorter than the long fin, and the second fin includes the long fin and the short fin. ### Claim 4 (depends on 3) The evaporative condenser of claim 3, wherein when viewed in a cross section perpendicular to the second direction, the connecting tube includes a partition wall provided therein, a curved portion positioned on an end portion in the third direction, and a straight portion between the curved portions, and the short fin is disposed between the straight portions. ### Claim 5 (depends on 4) The evaporative condenser of claim 4, wherein a length of the short fin in the third direction is shorter than the first distance. ### Claim 6 (depends on 5) The evaporative condenser of claim 5, wherein the first fin alternately includes the long fin and the short fin in the third direction, the second fin alternately includes the long fin and the short fin in the third direction, and a sum of a length of the connecting tube in the third direction and the first distance is equal to a sum of the lengths of the long and short fins of the first fin and the lengths of the long and short fins of the second fin. ### Claim 7 (depends on 1) The evaporative condenser of claim 1, wherein the fin member includes a hydrophilic coating layer on a surface. ### Claim 8 (depends on 1) The evaporative condenser of claim 1, wherein when viewed in a cross section perpendicular to the second direction, the connecting tube includes a partition wall therein, a curved portion positioned on an end portion in the third direction, and a straight portion between the curved portions. ### Claim 9 (depends on 8) The evaporative condenser of claim 8, wherein the long fin of the fin member is in contact with the straight portion of the connecting tube. ### Claim 10 (depends on 5) The evaporative condenser of claim 5, wherein the first fin alternately includes the long fin and n short fins in the third direction, the second fin alternately includes the long fin and n short fins in the third direction, where n is an integer greater than or equal to 2, and a sum of a length of the connecting tube in the third direction and the first distance is equal to a sum of lengths of the long fin and the n short fins of the first fin and lengths of the long fin and the n short fins of the second fin.