LOCKING UNIT, IN PARTICULAR FOR A PARKING LOCK OF AN AUTOMATIC TRANSMISSION
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United States of America Patent
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Issued Date -
Jan 8, 2015
app pub date -
Mar 5, 2013
filing date -
Mar 5, 2012
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Abstract
The invention relates to a locking unit, in particular for a parking lock of an automatic transmission, for locking the motion of a piston that can be moved by a drive, in particular a piston to which pressure can be applied, wherein the locking unit has an electromagnet and at least one catch element and the catch element interacts with the armature or armature rod of the electromagnet or with a bolt or bolt ring retained by the armature or armature rod or arranged on the armature or armature rod and the piston has at least two catch receptacles at a distance from each other and the piston can be fixed in different positions of the piston by the stopping interaction of the catch element with the respective catch receptacle. The invention further relates to a transmission equipped with the locking unit.
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