Patent ID: 8151749
Filing Date: 2012-04-10
Classification: F01L

Abstract:
1. An engine with a valve opening arrangement, comprising: an engine comprising at least one cylinder and at least one valve for opening and closing an opening in the cylinder, the valve being spring loaded to a closed position; a rocker arm including a movable contact surface for urging the valve to an open position; a control arrangement at least partially connected to the contact surface and operable in a modified mode to at least one of advance opening and delay closing of the valve relative to opening and closing in a normal mode, the control arrangement comprising a movable piston movable to an active position to operate in the modified mode, the piston being adapted to be moved to and held at any position at and between a fully extended position and a retracted position so that the contact surface is moved relative to the rocker arm; and a second contact surface that, during an engine braking mode, forces the valve to open and close differently relative to opening and closing of the valve in the normal mode.