Coates Engine – How a Coates Overhead Spherical Valve Engine Works!

Coates EngineCoates Engine

Unlike a conventional piston engine that ignites the fuel and air mixture in the combustion cycle and evacuates the gas byproducts in the exhaust cycle via the rotation of the camshaft and spring-loaded poppet valves, the Coates Overhead Spherical Valve Engine is made up of spheres rotating on a shaft sandwiched between a split head.

Coates Engine – How a Coates Overhead Spherical Valve Engine Works!

The Coates engine operates with over 100 fewer parts than convention engines. It avoids the problem of oil burning by requiring no oil lubricants for the valves. Moreover, the rotation of the spherical valve heads reduces engine temperature by constantly changing the surface exposed to combustion heat.

According to the creator, theĀ Coates Overhead Spherical Valve Engine creates a quieter engine with higher specific power output and longer life than conventional poppet valve engines due to better ‘breathing’ capability and higher speed capability.

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