Actuator
AssigneeZF Lenksysteme GmbH
InventorJohannes Markowetz
Life of this patent
Estimating the term…
Abstract
Actuator having at least three coupling elements connected with stabilizers (3, 5) and coupling splines (4, 16, 17), wherein one axially movable coupling element (10) is prestressed by a spring (11) while the other coupling elements are firmly connected with said stabilizers, and a pressure chamber (12) whose internal pressure regulates the disengagement operation.
Claims11
An actuator (1) for providing rotational engagement and disengagement between a first stabilizer shaft and a second stabilizer shaft for a motor vehicle, the actuator comprising:
- a first coupling element, a second coupling element and a third coupling element defining a pressure chamber (12), the first coupling element being integrally with the first stabilizer shaft and the second coupling element being integrally with the second stabilizer shaft;
- and the third coupling element being supported by an axially movable piston slidable along the second stabilizer shaft;
- and
- a spring biasing the piston towards an engaged position, when a lower pressure is supplied to the pressure chamber (12), and the piston overcoming the bias of the spring and moving the piston to a disengaged position, when a higher pressure is supplied to the pressure chamber (12);
- and
- in the engaged position of the piston, the piston (10) being biased by the spring to move the third coupling element into direct contact with both the first coupling element (4) on the first stabilizer shaft (3) and the second coupling element (17) on the second stabilizer shaft (5) and, in the disengaged position, the higher pressure in the pressure chamber overcomes the bias of the spring and causes the third coupling element to disengage from the first and second coupling elements.
An actuator (1) for stabilizing roll of a vehicle, the actuator comprising a first stabilizer shaft and a second stabilizer shaft, the first stabilizer shaft having a first coupling element and the second stabilizer shaft having a second coupling element;
- a pressure chamber (12) facilitating engagement and disengagement of the first stabilizer shaft and the second stabilizer shaft so that when a lower pressure is supplied to the pressure chamber (12), a spring biases the first coupling element into engagement with the second coupling element and, when a higher pressure is supplied to the pressure chamber (12), the higher pressure overcomes the bias of the spring and the first coupling element disengages from the second coupling element;
- and
- the actuator having a third coupling element which comprises a piston (10), the piston is axially displaceable against the bias of the spring, and the pressure chamber (12) is defined by the first coupling element, the second coupling element and the third coupling element.
Dependencies are inferred from the claim text.