# US 2014/0151008 A1 · Heat Exchangers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151008 A1 - Document ID: US20140151008A1 - Status: Published application - Kind: A1 - Application number: 14/094,356 - Filed: 2013-12-02 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Inventors: Carlos Quesada Saborio - Web page: https://patentgrep.com/patent/US20140151008A1 ## CPC - F28F 1/006: {with variable shape, e.g. with modified tube ends, with different geometrical features (F28F1/025, F28F1/06, F28F1/08, F28F9/16, F28F9/18 take precedence)} - B23P 15/26: heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} - F28D 1/0473: {the conduits having a non-circular cross-section} - F28F 1/022: {with multiple channels} - F28F 1/025: {with variable shape, e.g. with modified tube ends, with different geometrical features (F28F1/06, F28F1/08, F28F9/16, F28F9/18 take precedence)} - F28F 1/12: the means being only outside the tubular element - F28F 1/34: and extending obliquely (F28F1/38 takes precedence) - F28F 17/005: {Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence)} - F28F 1/26: the means being integral with the element (F28F1/32 takes precedence) - F28F 2260/02: having microchannels - Y10T 29/4935: Heat exchanger or boiler making - Y10T 29/49391: Tube making or reforming - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) - 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) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Heat exchanger (100) has one or several substantially flat and rigid elongated tubing elements (10), whereby the tubing elements (10) tilted while being helically wound, forming a substantially overall cylindrical structure having a central longitudinal axis (X). Tubing elements (10) are tilted spirally curved around the central longitudinal axis (X). Several elements are interleaved in a structure. The tubing elements (10) have a plurality of fins (60) on at least one of the outer surfaces (42, 52) of first (40) and/or second (50) side wall. Fins (60) are at least partially covered by a covering wall (70, 80). The tubing elements (10) are at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, an overall cylindrical structure and/or a cylindrical shape. ## Claims ### Claim 1 Heat exchanger apparatus (100) comprising one or more substantially flat and rigid elongated tubing elements (10) having a first side wall (40) and a second side wall (50) being arranged substantially parallel to each other, whereby the tubing elements (10) form a substantially overall cylindrical structure having a central longitudinal axis (X) and that the tubing elements (10) are tilted and spirally curved around the central longitudinal axis (X), whereby the tubing elements (10) have a plurality of fins (60) on at least one of outer surfaces (42, 52) of a first side wall (40) and/or of a second side wall (50) and whereby the fins (60) are angled and not perpendicular to lengths of the tubing elements 10 or to flow across the sidewalls (50, 60) at least partially covered by a covering wall (70, 80), whereby the tubing elements (10) are at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, whereby the helical structure has an overall cylindrical structure and/or that the helical structure is formed in a cylindrical shape. ### Claim 2 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the fins (60) are arranged between the covering wall (70, 80) and at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50) and that the covering wall and the outer surface are substantially parallel. ### Claim 3 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein interleaved tubing elements (10) arranged one upon the other. ### Claim 4 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein first ends (20) of adjacent tubing elements (10) are connected by a first connector (25), whereby the first connector (25) is a first connector tubing element (25), which is at least partially U-shaped bended. ### Claim 5 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein second ends (30) of adjacent tubing elements (10) are connected by a second connector (35), whereby the second connector (35) comprises a plurality of connector tubing elements (36) and a central connector portion, whereby the connector tubing elements (36) and the central connector portion (37) are arranged in star-shaped manner. ### Claim 6 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the tubing element (10) has a plurality of fins (60) on both of the outer surfaces (42, 52) of the first side wall (40) and of the second side wall (50). ### Claim 7 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the fins are monoblock fins (60). ### Claim 8 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the fins (60) are perpendicularly arranged on the at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50). ### Claim 9 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the fins (60) are inclined arranged on at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50). ### Claim 10 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the fins (60) extend along the whole width of at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50) and/or are curved and/or that the fins (60) are arranged along a curve extending merely along a whole width of at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50) and/or are curved, whereby between the fins (60) being arranged along a curve is a pitch and/or gap. ### Claim 11 (depends on 1) Heat exchanger apparatus (100) according to any claim 1, wherein the fins (60) are arranged in a plurality of substantially parallel rows along at least a part of the length of the tubing element (10). ### Claim 12 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the tubing elements (10) comprise at least one microchannel (60, 70, 80, 90) or several microchannels (60) with a round or circular cross-section and/or several microchannels (70, 80, 90) with an angular cross-section, several microchannels with a triangular cross-section (80) and/or several microchannels (70, 90) with quadrangular cross-section are provided. ### Claim 13 (depends on 12) Heat exchanger apparatus (100) according to claim 12, wherein at least some of the microchannels (90) are arranged with an off-set (0) to each other, whereby the off-set causes chamfers and/or grooves within the first side wall (40) and/or the second side wall (50). ### Claim 14 (depends on 1) Heat exchanger apparatus (100) according to claim 1, wherein the heat exchanger (100) is a condenser or an evaporator or a radiator or a cooler. ### Claim 15 Tubing element (10) for a heat exchanger apparatus (100) comprising a tubing element being tilted while helically wound.