Patent ID: 8434381

Claim:
A transmission for a motor vehicle, comprising: a first rotatable shaft; a second rotatable shaft; a first pair of meshing gearwheels and a second pair of meshing gearwheels; each of the first pair of meshing gearwheels comprises a first idle gearwheel rotatably mounted on said second rotatable shaft and the second pair of meshing gearwheels comprises a second idle gearwheel rotatably mounted on said second rotatable shaft; a first synchronizer that is displaceable along said second rotatable shaft between a first engaged position and a second engaged position that locks one of said first idle gearwheel or said second idle gearwheel to said second rotatable shaft via a neutral position; a hydraulic actuator for displacing the synchronizer, the hydraulic actuator comprising a cylinder and a piston that is displaceable within the cylinder and delimiting a first chamber and a second chamber, a first volume of the first chamber being smallest when the hydraulic actuator is in the first engaged position and a second volume of the second chamber being smallest when the hydraulic actuator is in the second engaged position, wherein the piston further delimits a third chamber within the cylinder, the third volume of which is smallest when the hydraulic actuator is in the neutral position and the piston further delimits a fourth chamber within the cylinder, the volume of which is smallest when the hydraulic actuator is in the neutral position and greatest when the hydraulic actuator is in the second engaged position.