Engine brake system for an internal combustion engine

An internal combustion engine, comprising:

• a cylinder head comprising one or more passages and one or more fastener openings;
• a valve train coupled to the cylinder head, comprising:
• one or more intake valves,
• one or more exhaust valves, and
• one or more rocker arms coupled to the one or more intake valves and the one or more exhaust valves;
• and
• an engine brake coupled to the cylinder head and arranged with respect to the one or more exhaust valves, comprising:
• a housing, comprising:
• a main body having a first passage extending along a first axis and a second passage extending along a second axis,
• a pin arranged in the first passage and configured to translate along the first axis to hold open the one or more exhaust valves,
• a wedge arranged in the second passage and configured to translate along the second axis and engage with the pin, and
• a solenoid coupled to the wedge and configured to actuate the wedge along the second axis.

An engine brake system, comprising:

• a housing including a first passage and a second passage;
• a pin arranged in the first passage and configured to translate between a first pin position and a second pin position;
• a wedge arranged in the second passage and configured to translate between a first wedge position and a second wedge position, the wedge being configured to be engaged by a valve train that prevents the wedge from returning to the first wedge position after the wedge departs from the first wedge position and the pin departs from the first pin position;
• and
• a solenoid coupled to the wedge and configured to actuate the wedge between the first wedge position and the second wedge position.