Modular and flexible design
Our VVA capsule approach provides flexibility which enables modifications to the basic cam profile on the fly. Oil commands to different valves can force the valve open or keep them closed when needed, reducing the amount of air going through the cycle, increasing exhaust temperature and improving thermal efficiency.
The LIVC capsule can keep the intake valve open a longer time, which improves the air flow at high engine load. The same type of capsule on the exhaust valve can open it early for higher temperature, or pulse open it during a compression stroke for engine braking.
This modular and flexible allows the same capsule with different oil commands achieve multiple functions allowing OEMs flexibility and choice in the design space. In addition, these solutions are more cost effective than additional aftertreatment.