CAMLESS ENGINE TECHNOLOGY PDF

In these systems, the camshaft rollers and pushrods have been replaced by an electro-hydraulic actuator system which uses the existing fuel pumps, thus reducing development risks of the new system by employing existing technology. This eliminates the risk of mechanical failures that could damage the engine if there was a malfunction while changing directions. Additionally, because there is no chain connection between the crank shaft and the camshaft, the engine is lighter with fewer points of failure. The absence of a camshaft also means that the parasitic load on the engine is lower, which is particularly useful in large marine engines, as it can equate to a large amount of power savings. With a camless engine, fuel injection and exhaust timing are directly controlled by an engine control unit and can be constantly changed and adjusted without stopping the engine.

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Presently, the top half of a modern overhead cam engine is a busy, crowded place filled with valves, springs, seals, gaskets, bearings and more. It works but at the cost of complexity and it operates at less than optimal efficiency. The novelty for Glide Valve Engine Technology is that it seals the combustion pressure with a non-invasive valve. In addition, it utilizes independent electronic software-driven actuators that can open the intake valve sooner and close the exhaust valve later than mechanically linked poppet valves.

This ability to open and close valves on demand produces the ultimate in Variable Valve Timing. Instead of a complicated overhead cam system, each Glide Valve engine arrangement consists of the head with two Glide Valves per cylinder, one intake and one exhaust valve.

The valves are driven by two electro-pneumatic types of actuators per cylinder. Glide Valve moves air through the interior of the valve and seals the valve with rings around the exterior of the valve. The Glide Valve design is a pass-through air flow that seals from the outside with rings which are no different than the rings that seal pistons.

This tubular design allows the valve to open and close without the need to enter the combustion chamber like the poppet valve. There is no worry about the piston-poppet valve cushion. The OEMs will build the engines and GCP will simply license the design to them, similar to how Microsoft licenses their software to various computer manufacturers. With the elimination of all the poppet valve-train moving parts, it is estimated that there will be significant cost savings in the manufacturing process.

While this design supports a broad range of internal combustion engine types for commercial, industrial and global markets, this is the ideal technology for extended range and hybrid electric vehicles.

We are convinced that the control of valves will move from mechanical linkage to computer aided actuators. This is the performance future of the internal combustion engine.

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Camless piston engine

Presently, the top half of a modern overhead cam engine is a busy, crowded place filled with valves, springs, seals, gaskets, bearings and more. It works but at the cost of complexity and it operates at less than optimal efficiency. The novelty for Glide Valve Engine Technology is that it seals the combustion pressure with a non-invasive valve. In addition, it utilizes independent electronic software-driven actuators that can open the intake valve sooner and close the exhaust valve later than mechanically linked poppet valves.

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