Patent ID: 11912086
Assignee: POLARIS INDUSTRIES INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 4:
5. A suspension system for a vehicle, comprising:
a sensor sensing a sensed condition at or near a shock absorber housing, said shock absorber housing having a longitudinal axis;
a spring disposed around the shock absorber housing;
a retainer collar disposed around the shock absorber housing;
an actuator engaged to the retainer collar, the actuator moves at least a portion of the retainer collar to move the spring in a direction corresponding the longitudinal axis;
said shock absorber housing comprises first external threads and the retainer collar comprises internal threads engaging the first external threads, the actuator rotating the retainer collar around the longitudinal axis so that the internal threads move relative to the first external threads and the spring moves in an axial direction, the first external threads disposed within a flanged extension disposed at a first end of the shock absorber housing,
a first seal disposed between the shock absorber housing and the retainer collar and a second seal disposed between the flanged extension and the retainer collar; and
a controller coupled to the actuator, said controller controlling the actuator to move the retainer collar to move the spring in response to the sensed condition.