US 12,345,307 B2
Bush
Jan Geisen, Mendig (DE); Jonathan Morton, Andernach (DE); Christian Stanka, Montabaur (DE); Michael Lines, Andernach (DE); Werner Kaiser, Ruppach-Goldhausen (DE); and SeonDoSeong Cho, Busan (KR)
Assigned to DN Automotive Germany GmbH, (DE)
Appl. No. 17/281,526
Filed by DTR VMS Limited, Trowbridge (GB)
PCT Filed Sep. 30, 2019, PCT No. PCT/EP2019/076458
§ 371(c)(1), (2) Date Mar. 30, 2021,
PCT Pub. No. WO2020/070069, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 1815999 (GB), filed on Oct. 1, 2018.
Prior Publication US 2022/0042567 A1, Feb. 10, 2022
Int. Cl. F16F 1/38 (2006.01); F16F 7/108 (2006.01)
CPC F16F 1/38 (2013.01) [F16F 7/108 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bush for isolating vibrations, the bush comprising:
a first anchor part that defines a longitudinal axis;
a second anchor part spaced from the first anchor part;
a resilient body extending between the first anchor part and the second anchor part and operably engaged with the first anchor part and the second anchor part to isolate vibrations therebetween, the resilient body comprising a plurality of radial arms spaced apart around the longitudinal axis, wherein each pair of adjacent arms is separated by a longitudinally extending passageway; and
a tuning element formed with and extending from an outer surface of the resilient body,
wherein the tuning element comprises an upstanding wall bridging across each longitudinally extending passageway, and
wherein the tuning element is configured to reduce dynamic stiffness increases associated with eigenmodes of the resilient body within a predetermined operational vibration frequency range.