Abstract: An internal combustion engine system includes an engine with a plurality of cylinders, a fueling system to provide fuel to the plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, and an exhaust system to release exhaust gas from the plurality of cylinders through respective ones of a plurality of exhaust valves. During engine braking, an amount of fuel is injected into one or more cylinders involved in the engine braking during the compression stroke thereof to improve engine braking performance.

Abstract: Disclosured herein are apparatus and methods relating to combustion engines. In an example, a combustion engine includes a head and a rocker assembly. The rocker assembly including: a rocker shaft including therein a pressure reservoir, a pedestal support adapted to be fastened to the head and sized and structured to support the rocker shaft, a rocker lever pivotally supported by the rocker shaft, and a hydraulic engine brake mechanism within the rocker lever including a hydraulic control valve configured to selectively actuate an exhaust valve of the combustion engine.

Abstract: A standoff support system comprises a standoff support including a mounting foot and a body portion, with the body portion having a first engagement portion formed on a free end of it and the further comprising clip tray having a second engagement portion such that the first and second engagement portions are arranged to be engagable with one another and have complementary mating services arranged limit the orientation of the clip tray relative to the standoff support to one or more predefined orientations.