A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice-versa. In an engine, it is connected to a shaft (e.g. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path.
In a traditional engine, the camshaft has a very important role to play while opening and closing of a valve. It was a necessary evil for an engine functioning. Furthermore, because of the camshaft, engineers need to choose either an efficient engine or a powerful engine but not with both qualities. This is one of the most important factors that make a camless engine a necessity. Though the idea of cam less engine existed from 1899, it has become the need of the modern world now, when we need power and efficiency both.
A camless engine uses electromagnetic, hydraulic, or pneumatic actuators to open the poppet valves instead. Actuators can be used to both open and close the valves, or an actuator opens the valve while a spring closes it. An actuator is a type of motor for moving or controlling a mechanism or system. It is operated by a source of energy, usually in the form of an electric current, hydraulic fluid pressure or pneumatic pressure, and converts that energy into some kind of motion.
Things required:
Mindstorm lego kit for Camless Engine
Advantages of using cam less engine:
Increase efficiency
Reduce emission
Improve Power
Disadvantage:
High power requirements of the actuator
Uses:
Camless IC Engines
Air Compressors
Related PDF:
Development of a Piezoelectric Controlled Hydraulic Actuator for a Camless Engine
by John Steven Brader
Control of an electromechanical actuator for cam less engines
Camless Engine Control for a Robust Unthrottled Operation
Related Video:
Related Projects :
IC Engines
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