Jacobs launches engine brake for Yuchai YC6K12 engine

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Jacobs Vehicle Systems, a manufacturer of heavy-duty diesel engine retarding systems and engine valve actuation mechanisms, announced that it has launched an engine brake for the new Yuchai YC6K12 12.2L engine for application into the C&C Truck, a new heavy truck brand in China. The engine brake was designed in conjunction with Yuchai’s engineering staff to maximize the performance and integration of the retarder.

The braking system consists of two dedicated cam-operated compression-release overhead housing assemblies and a custom-designed exhaust brake designed to provide a synergistic effect for maximum cylinder pressure utilization to achieve high retarding power density. Additionally, it includes specialized valvetrain crossheads with integrated braking valve motion actuation pins and dedicated brake rocker arms to transfer motion from the dedicated brake cams to the brake housing assemblies.