US 12,241,522 B2
Adjustable bleed valve assembly for shock absorber
Magnus Wallén, Märsta (SE)
Assigned to Öhlins Racing AB, Väsby (SE)
Appl. No. 17/639,187
Filed by Öhlins Racing AB, Upplands Väsby (SE)
PCT Filed Aug. 20, 2020, PCT No. PCT/EP2020/073286
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/043583, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 19194975 (EP), filed on Sep. 2, 2019.
Prior Publication US 2022/0397176 A1, Dec. 15, 2022
Int. Cl. F16F 9/34 (2006.01); F16F 9/32 (2006.01); F16F 9/46 (2006.01); F16K 15/06 (2006.01); G05D 15/00 (2006.01); F16K 15/18 (2006.01)
CPC F16F 9/34 (2013.01) [F16F 9/3221 (2013.01); F16F 9/466 (2013.01); F16K 15/066 (2013.01); G05D 15/00 (2013.01); F16F 2222/12 (2013.01); F16F 2228/066 (2013.01); F16F 2230/186 (2013.01); F16K 15/184 (2021.08)] 20 Claims
OG exemplary drawing
 
1. A bleed valve assembly for arrangement in a bleed flow channel in a piston rod of a shock absorber, the bleed valve assembly comprising:
a first adjustable bleed valve, and
a second adjustable bleed valve arranged in series with the first adjustable bleed valve,
the first adjustable bleed valve being reconfigurable during use independently from a pressure acting on the first adjustable bleed valve, the second adjustable bleed valve being reconfigurable during use independently from a pressure acting on the second adjustable bleed valve, the first adjustable bleed valve being adjustable between a first open state and a second open state, or between said first open state and a closed state, and the second adjustable bleed valve being adjustable between a first open state and a second open state, or between said first open state and a closed state,
each adjustable bleed valve being adapted to throttle a damping fluid in the piston rod more in the second open state than in the first open state,
the first adjustable bleed valve and the second adjustable bleed valve being each adjustable between the first open state and the second open state or between said first open state and said closed state independently from one another,
the first adjustable bleed valve and the second adjustable bleed valve being adapted to throttle a damping fluid by means of a common throttling member, and
the first adjustable bleed valve being adjustable between the first open state and the second open state or between said first open state and said closed state by moving the throttling member.