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 spir
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.
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1. Heat exchanger apparatus (100) comprising one or more substantially flat and rigid elongated finned tubing elements (10, 10′) having a first side wall (40) and a second side wall (50) being arranged substantially parallel to each other, whereby the one or more finned tubing elements (10, 10′) for
1. Heat exchanger apparatus (100) comprising one or more substantially flat and rigid elongated finned tubing elements (10, 10′) having a first side wall (40) and a second side wall (50) being arranged substantially parallel to each other, whereby the one or more finned tubing elements (10, 10′) form a substantially overall cylindrical structure having a central longitudinal axis (X) and that the one or more finned tubing elements (10, 10′) are curved around the central longitudinal axis (X),whereby the one or more finned tubing elements (10, 10′) have a plurality of fins (60, 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, 60′) are angled and not perpendicular with respect to lengths of the one or more finned tubing elements (10, 10′) to direct flow across the sidewalls (40, 50), connection walls (45, 55) on both sides between the first side wall (40) and the second side wall (50),wherein the fins (60, 60′) are angled with respect to the finned tubing element by two defining angles (γ, δ), wherein one angle (γ) of the two defining angles is an angle of the fins (60, 60′) with respect to the connection walls (45, 55) of the finned tubing element, wherein another angle (δ) of the two defining angles is an angle of the fins (60,60′) with respect to the outer surfaces (42, 52) of the first side wall (40) or the second side wall (50),wherein the fins are covered by a covering wall (70, 80), whereby the one or more finned tubing elements (10, 10′) are at least partially tilted, sloped, and helically wound and twisted so as to form at least a part of a helical structure, whereby the helical structure has an overall cylindrical structure and that the helical structure is formed in a cylindrical shape, wherein each of the fins is twisted between opposite endpoints of each fin and curved by an offset of a center part of a middle section of each fin with respect to the endpoints of each fin. 2. Heat exchanger apparatus (100) according to claim 1, wherein the fins (60,60′) are arranged between the covering wall (70, 80) and at least one of the outer surfaces (42, 52) of the first side wall (40) or of the second side wall (50) and that the covering wall and the outer surface are substantially parallel. 3. Heat exchanger apparatus (100) according to claim 1, wherein interleaved plural similar finned tubing elements (10,10′) arranged one upon the other. 4. Heat exchanger apparatus (100) according to claim 1, wherein first ends (20) of adjacent finned tubing elements (10,10′) 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. 5. Heat exchanger apparatus (100) according to claim 1, wherein second ends (30) of adjacent finned tubing elements (10,10′) 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. 6. Heat exchanger apparatus (100) according to claim 1, wherein the one or more finned tubing element (10,10′) has a plurality of fins (60,60′) on both of the outer surfaces (42, 52) of the first side wall (40) and of the second side wall (50). 7. Heat exchanger apparatus (100) according to claim 1, wherein the fins are monoblock fins (60,60) that are formed integral with the side walls of the one or more finned tubing elements. 8. Heat exchanger apparatus (100) according to claim 1, wherein the fins (60, 60′) are perpendicularly arranged on the at least one of the outer surfaces (42, 52) of the first side wall (40) or of the second side wall (50). 9. Heat exchanger apparatus (100) according to claim 1, wherein the fins (60, 60′) are inclined arranged on at least one of the outer surfaces (42, 52) of the first side wall (40) or of the second side wall (50). 10. Heat exchanger apparatus (100) according to claim 1, wherein the fins (60, 60′) extend along the whole width of at least one of the outer surfaces (42, 52) of the first side wall (40) or of the second side wall (50) and that the fins (60, 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), whereby between the fins (60) being arranged along a curve is a pitch or gap. 11. Heat exchanger apparatus (100) according to any claim 1, wherein the fins (60, 60′) are arranged in a plurality of substantially parallel rows along at least a part of the length of the one or more finned tubing elements (10). 12. Heat exchanger apparatus (100) according to claim 1, wherein the one or more finned tubing elements (10, 10′) comprise at least one microchannel or several microchannels with a round or circular cross-section or several microchannels with an angular cross-section, several microchannels with a triangular cross-section or several microchannels with quadrangular cross-section are provided. 13. Heat exchanger apparatus (100) according to claim 12, wherein at least some of the microchannels are arranged with an off-set (O) to each other, whereby the off-set causes chamfers or grooves within the first side wall (40) or the second side wall (50). 14. 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. 15. The heat exchanger according to claim 1, the one or more finned tubing elements (10, 10′) for a heat exchanger apparatus (100) comprising the one or more finned tubing elements being tilted while helically wound.
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