Hydraulic actuator for a spring preload adjustment system for a shock absorber

Abstract

The present disclosure relates to a hydraulic actuator for a spring preload adjustment system for a shock absorber. The hydraulic actuator comprising a fluid chamber, a piston slidably arranged within the fluid chamber in a first direction for moving hydraulic fluid out of the fluid chamber to increase spring preload of a shock absorber connected to the hydraulic actuator. The piston is further slidably arranged within the fluid chamber in a second, opposite, direction for allowing hydraulic fluid to enter the fluid chamber to decrease spring preload of the shock absorber. The hydraulic actuator further comprises a drive assembly operatively engageable with the piston, the drive assembly comprising a drive unit, a lead screw operatively connected to the drive unit, and a gear element engaged with the lead screw and arrangeable to abut the piston. The drive assembly is operable to actuate the piston to slide in the first direction and is operable to allow the piston to slide in the second direction without the drive unit being actuated.

Dependencies are inferred from the claim text.