Two-way roller clutch with torque limiting feature

The present invention relates generally to clutches such as those used in conjunction with automotive power steering systems and more particularly to a new and improved clutch system and torque limitation system, both especially for useful in conjunction with automotive power steering systems. The new and improved clutch system includes a passively actuated system that permits torque transmission from one direction only. The torque limitation system includes a feature for allowing slip, for example, at or above a preset torque level. A clutch system is described wherein a two-way roller clutch system transmits torque in from one direction (i.e., input side) only, and allows the clutch system to be physically decoupled from the power steering system when torque is forced in from the output side, e.g., during loss of electrical power to the power steering motor. Additionally, the clutch system can include a torque limiting system that permits slip when overall torque exceeds a preset limit. Both the clutch system and the torque limitation system are especially useful in conjunction with automotive power steering systems.