Camshaft adjuster with device for emergency operation
AssigneeMAGNA Powertrain AG & Co KG
InventorMichael Schober
Life of this patent
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Abstract
An adjustment device for adjusting the relative angular position of a camshaft with respect to a crankshaft within a specified angle range, the adjustment device having a device for emergency operation of the adjustment device. The device for emergency operation includes a freewheel device which can be activated in an emergency mode of the adjustment device and, in an activated state, is able to allow an adjustment movement of the camshaft with respect to the crankshaft from the current position in a first direction towards an emergency running position and to block an adjustment movement in a second direction opposite thereto.
Claims18
An adjustment device configured to adjust the relative angular position of a camshaft with respect to a crankshaft within a predetermined angle range, the adjustment device comprising:
- an emergency device including a freewheel device configured for activation in an emergency mode of the adjustment device to permit an adjustment movement of the camshaft with respect to the crankshaft from a first position in a first direction towards a second, emergency running position and to block an adjustment movement in a second direction opposite thereto;
- and
- an adjustment gearbox having a gear element, wherein the freewheel device includes a spring-pretensioned pawl configured to engage in an interlocking manner the gear element of the adjustment gearbox.
An adjustment device configured to adjust the relative angular position of a camshaft with respect to a crankshaft within a predetermined angle range, the adjustment device comprising:
- an emergency device including a freewheel device configured for activation in an emergency mode of the adjustment device to permit an adjustment movement of the camshaft with respect to the crankshaft from a first position in a first direction towards a second, emergency running position and to block an adjustment movement in a second direction opposite thereto, the emergency device including a locking device configured to lock the adjustment device when the camshaft has reached an emergency running position relative to the crankshaft and an actuator configured to activate the freewheel device, wherein the locking device includes a locking bolt configured to act between an input drive gear of the camshaft and a component which is fixed to the camshaft.
An adjustment device configured to adjust the relative angular position of a camshaft with respect to a crankshaft within a predetermined angle range, the adjustment device comprising:
- an emergency device including a freewheel device having a rocker arm and which is configured for activation in an emergency mode of the adjustment device to permit an adjustment movement of the camshaft with respect to the crankshaft from a first position in a first direction towards a second, emergency running position and to block an adjustment movement in a second direction opposite thereto.
Dependencies are inferred from the claim text.