# US 2014/0190675 A1 · Heat Exchanger Pipe And Heat Exchanger Incorporating Such Pipes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190675 A1 - Document ID: US20140190675A1 - Status: Published application - Kind: A1 - Application number: 14/130,847 - Filed: 2012-07-04 - Published: 2014-07-10 - Earliest claimed: 2011-07-06 - Applicants: Valeo Systemes Thermiques - Inventors: Christophe Denoual; Alain Pourmarin - Web page: https://patentgrep.com/patent/US20140190675A1 ## CPC - F28F 1/10: Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F28F1/06, F28F1/08) - F28D 1/035: {with U-flow or serpentine-flow inside the conduits (F28D1/0341 takes precedence)} - F28D 1/0391: {a single plate being bent to form one or more conduits} - F28F 3/042: {in the form of local deformations of the element} - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - 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) ## Abstract The invention relates to a pipe (2) of a heat exchanger (1) comprising a strip (9) bent about itself such as to define an internal volume (10) of the pipe (2). The strip (9) comprises first and second edge portions (15, 16) joined such as to divide the internal volume (10) into at least two channels. The first edge portion (15) has two distinct parts, referred to as first and second contact parts (18, 22), in contact with the second edge portion (16) and a third contact part (20), located between the first and second contact parts (18, 22). The third contact part (20) is in contact with a zone of the strip (9) opposite the second edge portion (16) across the internal volume (10) of the pipe (2). The invention also relates to a heat exchanger (1) incorporating such pipes (2). ## Claims ### Claim 1 A pipe (2) of a heat exchanger (1), the pipe (2) comprising a strip (9) bent about itself to define an internal volume (10) of the pipe (2), the strip (9) having a first edge portion (15) and a second edge portion (16) joined together to divide the internal volume (10) into at least two channels, wherein the first edge portion (15) has first and second contact parts (18, 22), in contact with the second edge portion (16) and a third contact part (20), located between the first and second contact parts (18, 22), the third contact part (20) being in contact with a zone of the strip (9) opposite the second edge portion (16) across the internal volume (10) of the pipe (2). ### Claim 2 (depends on 1) A pipe (2) according to claim 1, in which the second edge portion (16) is flat. ### Claim 3 (depends on 1) A pipe (2) according to claim 1, in which the first contact part (18) and the second contact part (22) are flat. ### Claim 4 (depends on 1) A pipe (2) according to claim 1, in which the pipe (2) has two flat walls (11, 12) opposing one another across the internal volume (10), with the second edge portion (16) defining a part of one of the walls (11, 12). ### Claim 5 (depends on 4) A pipe (2) according to claim 4, in which the distance between the two flat walls (11, 12) is less than or equal to 1.5 mm. ### Claim 6 (depends on 5) A pipe (2) according to claim 5, in which the distance between the two flat walls (11, 12) is less than or equal to 1.0 mm. ### Claim 7 (depends on 1) A pipe (2) according to claim 1, in which the first edge portion (15) includes a shoulder (23) oriented towards the inside of the pipe (2) such that a distal extremity (24) of the second edge portion (16) is arranged to face the shoulder (23). ### Claim 8 (depends on 1) A pipe (2) according to claim 1, in which the first contact part (18) is linked to the third contact part (20) by a first inclined leg (19), and the second contact part (22) is linked to the third contact part (20) by a second inclined leg (21). ### Claim 9 (depends on 8) A pipe (2) according to claim 8, in which the first inclined leg (19), the third contact part (20), and the second inclined leg (21) are arranged consecutively and form a “V” shape in a plane perpendicular to an axis of longitudinal extension (A) of the pipe (2). ### Claim 10 (depends on 1) A pipe (2) according to claim 1, in which the third contact part (20) is located in a central zone of the pipe (2). ### Claim 11 (depends on 1) A pipe (2) according to claim 1, in which the strip (9) has portions (17) that come into contact with the parts of the strip (9) opposing one another across the internal volume (10) of the pipe (2) to define supplementary channels (30, 31, 32, 33). ### Claim 12 (depends on 1) A pipe (2) according to claim 1, in which the strip (9) has stamped portions (27, 28) that may or may not come into contact with the parts of the strip (9) opposing one another across the internal volume (10) of the pipe (2). ### Claim 13 (depends on 1) A heat exchanger (1) including at least one pipe (2) according to claim 1. ### Claim 14 (depends on 2) A pipe (2) according to claim 2, in which the first contact part (18) and the second contact part (22) are flat. ### Claim 15 (depends on 2) A pipe (2) according to claim 2, in which the pipe (2) has two flat walls (11, 12) opposing one another across the internal volume (10), with the second edge portion (16) defining a part of one of the walls (11, 12). ### Claim 16 (depends on 3) A pipe (2) according to claim 3, in which the pipe (2) has two flat walls (11, 12) opposing one another across the internal volume (10), with the second edge portion (16) defining a part of one of the walls (11, 12). ### Claim 17 (depends on 14) A pipe (2) according to claim 14, in which the pipe (2) has two flat walls (11, 12) opposing one another across the internal volume (10), with the second edge portion (16) defining a part of one of the walls (11, 12).