What type of cam geometry is required if the objective is to load the train that rides it for most of the cycle?

In the context of cam geometry, the term "IBC" stands for "Intake Valve Cam" which is part of the system that controls the timing and duration of the intake valve opening in an engine cycle. When the goal is to load the train that rides on the cam for most of the cycle, utilizing an IBC profile is particularly effective. This profile is designed to provide a gradual and prolonged application of lift, which effectively keeps the load on the train for a longer period during the intake phase of the engine cycle.

This is essential for optimizing the engine's performance, as it allows the intake valve to remain open for an extended duration, facilitating better air-fuel mixture entry into the combustion chamber. This can enhance engine efficiency and power output. The IBC profile is typically designed with a slope that supports this loading strategy.

Choosing an OBC (Over-Balanced Cam) profile would not achieve the same objective, as its design generally promotes a sharper lift and quicker closure of the valve, which doesn't favor sustaining a load for most of the cycle. Since the question specifically addresses the requirement of loading the train for most of the cycle, the IBC profile stands out as the correct choice, highlighting its role in maintaining load distribution effectively throughout the