US 11,999,214 B2
Accumulators for a distributed active suspension system
Joseph Thomas Belter, Somerville, MA (US); and Jason Steven Sirois, Atkinson, NH (US)
Assigned to ClearMotion, Inc., Billerica, MA (US)
Appl. No. 17/251,571
Filed by ClearMotion, Inc., Billerica, MA (US)
PCT Filed Jun. 14, 2019, PCT No. PCT/US2019/037218
§ 371(c)(1), (2) Date Dec. 11, 2020,
PCT Pub. No. WO2019/241650, PCT Pub. Date Dec. 19, 2019.
Claims priority of provisional application 62/740,823, filed on Oct. 3, 2018.
Claims priority of provisional application 62/691,132, filed on Jun. 28, 2018.
Claims priority of provisional application 62/684,899, filed on Jun. 14, 2018.
Prior Publication US 2021/0252935 A1, Aug. 19, 2021
Int. Cl. B60G 17/08 (2006.01); B60G 13/08 (2006.01); B60G 17/0165 (2006.01); F16F 9/06 (2006.01); F16F 9/512 (2006.01)
CPC B60G 17/08 (2013.01) [B60G 13/08 (2013.01); B60G 17/0165 (2013.01); F16F 9/061 (2013.01); F16F 9/065 (2013.01); F16F 9/512 (2013.01); B60G 2202/24 (2013.01); B60G 2204/62 (2013.01); B60G 2206/41 (2013.01); B60G 2500/104 (2013.01); B60G 2600/182 (2013.01); B60G 2800/162 (2013.01); F16F 2222/12 (2013.01); F16F 2228/004 (2013.01); F16F 2228/066 (2013.01); F16F 2232/08 (2013.01); F16F 2234/02 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A nested accumulator assembly for a hydraulic system, the nested accumulator assembly comprising:
a first accumulator including:
a first accumulator housing that at least partially defines a first internal volume; and
a first piston that divides the first internal volume into a first gas-charged chamber and a first hydraulic fluid chamber; and
a second accumulator including:
a second accumulator housing that at least partially defines a second internal volume; and
a second piston that divides the second internal volume into a second gas-charged chamber and a second hydraulic fluid chamber;
wherein at least a portion of the second accumulator is disposed within the first internal volume.