New engine design with super high compression (Pancake version)

By Gary L.

See my previous "New engine design with super high compression" submission marked (Not Approved). My original submission covered the upside down narrow "V" design. This submission covers the "pancake" four cylinder orientation similar to a VW Beetle engine. This engine is very similar in design to the "V" design except it is flat and the moving cylinders are forged as linear pairs with an opening inbetween for a crankshaft (700 rpm idle) and connections for two connecting rods. The cylinders are aluminum with cast iron liners and have cooling fins for air cooling by filtered air through block for combustion like the "V". The combustion chambers face each other. Connecting rods are attached to the outer center of each combustion chamber dome and then to a crankshaft in the center opening. One of the rods is of normal design and the other cylinder connecting rod is shaped like a tuning fork to fit around the other rod on the crankshaft keeping the power transfer balanced. Technically one rod on one side could tranfer the power but I feel it would be out of balance and would have to be almost twice the size of the two. Two sets of moving cylinders are then placed side-by-side in the aluminum engine block. At each end are pistons bolted to the engine block using the same design as the previously submitted "V" design. The intake and exhaust valves and spark plug (centered) are in the piston with passages for coolant. The linear cylinders (2) have two small connecting rods on each side (for balance) at the open ends of the cylinders. These rods connect to small geared shafts (2 per cylinder)  that spin at the same speed as the crankshaft and are geared to the valve camshafts on each side of the engine. Two small shafts are used so that the spark plugs is excessible. Both the "V" and the "pancake" design require no timing chain. It is done with gears and small connecting rods. This design allows easy 2 or 4 cycle designs like the "V" and delivers smooth power from the linear movement of the twin linear moving cylinders. Maximum compression can be obtained even excessing the "V" because of the straight line structure movement of the cylinders in pairs each balancing the other between two fixed pistons within the engine block. This engine is small and compact like the "V" design and is great for use even in hybrid cars. See "V" design for details and advantages. Both designs require very small engine blocks reducing weight (both may be as little as six inches tall).