US Patent 11009093 Electronically adjustable shock absorber

A mechanism for electronically adjusting a shock absorber includes a cartridge that is located on the fluid path between the main body of the shock absorber and a damping reservoir. A piston valve is mounted for reciprocal movement inside an elongated chamber of the cartridge, and a solenoid is mounted on the cartridge to interact with the piston valve. In operation, the solenoid is electronically controlled to selectively move the piston valve into various positons in the cartridge chamber to thereby vary the volume of liquid flow along the fluid path which will adjust the response characteristics of the shock absorber.