US 12,134,130 B2
Blank for a conduit arrangement
Rolf Cremerius, St. Augustin (DE); Thomas Weckerling, St. Augustin (DE); Ümit Aydin, Wachtberg (DE); and Galina Ermakova, Bonn (DE)
Assigned to GKN Driveline International GmbH, Lohmar (DE)
Appl. No. 17/056,778
Filed by GKN Driveline International GmbH, Lohmar (DE)
PCT Filed May 24, 2018, PCT No. PCT/EP2018/063602
§ 371(c)(1), (2) Date Nov. 19, 2020,
PCT Pub. No. WO2019/223866, PCT Pub. Date Nov. 28, 2019.
Prior Publication US 2021/0178482 A1, Jun. 17, 2021
Int. Cl. H01F 27/28 (2006.01); B22F 10/20 (2021.01); B22F 10/47 (2021.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B33Y 80/00 (2015.01); H01F 41/04 (2006.01)
CPC B22F 10/47 (2021.01) [B22F 10/20 (2021.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 80/00 (2014.12); H01F 27/2876 (2013.01); H01F 41/04 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A blank of a line arrangement, comprising:
an annular line which has a first end and a second end and is formed by a channel enclosed by a wall; and
a supporting structure that is formed by second areas having a weight of at least 30% by weight with respect to material forming the supporting structure;
wherein the line arrangement has an axis of rotation and the annular line extends in a circumferential direction over more than 360 degrees around the axis of rotation and forms at least two turns;
wherein the turns are arranged adjacent to one another in an axial direction, and wherein the axis of rotation is arranged perpendicular to a base area;
wherein the channel has a throughflow cross section and at least one of the turns forms the channel and has a cross section that encompasses the throughflow cross section, and the cross section has a height between a lower boundary and an upper boundary in the axial direction;
wherein, starting from the lower boundary and up to at least 30% of the height, the wall exclusively includes first areas (a) that are arranged at a first angle of at least 30 degrees with respect to the base area, or (b) in which a surface normal forms at least a second angle of from 0 to 60 degrees with respect to the base area;
wherein first sub-areas of the walls of adjacently arranged turns face one another in the axial direction and are arranged spaced apart from one another;
wherein the blank is produced by an additive manufacturing process;
wherein the line arrangement is used as an electrical inductor through which a coolant can flow via the channel; and
wherein the second areas are arranged (a) at an angle of at least 30 degrees with respect to the base area, or (b) such that a surface normal forms at least a second angle of from 0 to 60 degrees with respect to the base area.