Patent ID: 8225769

Claim:
An internal combustion engine having at least one exhaust valve for withdrawal of exhaust gas from at least one combustion chamber, comprising: an engine brake device that is provided with a hydraulic valve auxiliary control unit, wherein said valve auxiliary control unit is connected to an oil circuit for a supply of oil, and wherein when said engine brake device is actuated, said at least one exhaust valve is adapted to be held in a temporarily opened position by means of said valve auxiliary control unit; a connection mechanism for connection of said at least one exhaust valve to a rocker arm, wherein said valve auxiliary control unit is integrated into said connection mechanism; a hydraulic valve play compensation mechanism for said at least one exhaust valve, wherein said valve play compensation mechanism is integrated into said connection mechanism, and wherein said valve play compensation mechanism is connected to said oil circuit for a supply of oil; an oil channel that is formed between said valve auxiliary control unit and said valve play compensation mechanism for a supply of oil to said valve auxiliary control unit; a closure unit, wherein said oil channel is adapted to be closed by said closure unit to effect compensation of valve play of said at least one exhaust valve; a valve bridge, wherein said valve auxiliary control unit and said valve play compensation mechanism are integrated into said valve bridge, and wherein said oil channel is integrated in said valve bridge; a counter support that cooperates with said valve auxiliary control unit; and a first hydraulic piston/cylinder unit for a compensation of play between said counter support and said valve bridge.