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AssigneeDaimler AG
InventorsMatthias Gregor, Jens Meintschel, Tilmann R{hacek over (o)}mheld, Petra Schulz, Thomas Stolk, Alexander von Gaisberg-Helfenberg
Estimating the term…
In a camshaft adjusting device for adjusting a phase position of a camshaft, including a rotary actuator having a stator and at least one axially displaceable rotor and including a gear mechanism which is arranged operatively between two of at least three shafts, one of the shafts being a control shaft which is acted upon by the rotary actuator, one of the shafts being a drive shaft which is connected to the crankshaft, and one of the shafts being an output shaft which is connected to the camshaft, a compact locking structure is provided whereby at least two of the at least three shafts can be locked to one another in a rotationally fixed manner by a spring depending on operating conditions and released by an auxiliary coil which, upon energization, provides for axial movement of the rotor out of its locked position to permit adjustment thereof.
A camshaft adjusting device for adjusting a phase position of a camshaft with respect to a crankshaft, comprising a rotary actuator having an arm (47) and including an a stator (45) and at least one axially displaceable rotor (31), and a gear mechanism (10) arranged between two of at least three shafts (11, 12, 13), one of the shafts, being a control shaft (13) acted upon by the rotary actuator, another one of the shafts being a drive shaft (11) connected to the crankshaft, and one of the shafts being an output shaft (12) connected to the camshaft, and means for locking at least two of the at least three shafts (11, 12, 13) to one another in a rotationally fixed manner, as a function of operating conditions, via an excitation coil (42) for acting on the rotary actuator, and an auxiliary coil (44) for axially moving the rotor (31) at least in one direction (20) out of engagement with the drive shaft (11), the auxiliary coil (44) being disposed in an annular recess (43) into which also an armature (34) connected to the rotor (31) extends, so that, upon energization of the auxiliary coil (44), the rotor (31) is drawn by means of the armature (34) into the annular recess (43) of the stator (45).
Dependencies are inferred from the claim text.