US 12,292,757 B2
Magnetorheological braking device
Stefan Battlogg, St. Anton i.M. (AT)
Assigned to INVENTUS Engineering GmbH, St. Anton i.M. (AT)
Appl. No. 17/786,703
Filed by INVENTUS Engineering GmbH, St. Anton i.M. (AT)
PCT Filed Dec. 18, 2020, PCT No. PCT/EP2020/087267
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123343, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 135 029.8 (DE), filed on Dec. 18, 2019; and application No. 10 2019 135 760.8 (DE), filed on Dec. 23, 2019.
Prior Publication US 2023/0029016 A1, Jan. 26, 2023
Int. Cl. G05G 5/03 (2008.04); F16D 57/00 (2006.01); G05G 1/10 (2006.01); G06F 3/01 (2006.01); G06F 3/0338 (2013.01); G06F 3/0354 (2013.01); G06F 3/0362 (2013.01)
CPC G05G 5/03 (2013.01) [F16D 57/002 (2013.01); G05G 1/10 (2013.01); G06F 3/016 (2013.01); F16D 2200/0034 (2013.01); G05G 2505/00 (2013.01); G06F 3/0338 (2013.01); G06F 3/03543 (2013.01); G06F 3/0362 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A magnetorheological braking device comprising:
a stationary mount, a first brake component, and a second brake component;
one of said first or second brake components being rotationally fixed to said stationary mount, said first and second brake components being continuously rotatable relative to one another;
said first brake component extending in an axial direction, said first brake component having at least one electric coil and a magnetically conductive core extending in said axial direction;
said second brake component having a hollow casing extending about said first brake component;
said first brake component and said second brake component being disposed to form an encircling gap therebetween, said encircling gap being filled with a magnetorheological medium;
said core and/or said casing having magnetic field concentrators protruding into said encircling gap such that said encircling gap has a variable gap height;
said at least one electric coil being wound about at least one portion of said core, and said at least one electric coil being configured to generate a magnetic field through said core, said magnetic field concentrators, and said encircling gap into a wall of said casing; and
said core having at least one angular segment, and said magnetic field concentrators extending across an external circumference of said core through said at least one angular segment
said electric coil being wound about said core in said axial direction and said electric coil being disposed on said core outside of said angular segment.