Engine With No Crankshaft – Internal Combustion Engine (ICE)!!!

Engine With No CrankshaftEngine With No Crankshaft

An internal combustion engine (ICE) is a heat motor where the combustion of a fuel happens with an oxidizer (e.g. air) in a combustion chamber that is a part of the working fluid flow circuit. But is it possible for this engine to work with no crankshaft?

In this video below you can see a concept prototype engine. The base engine concept is that of a common-axis, two cylinder module including the cylinders, cylinder heads and pistons of a two-stroke Kawasaki 340 engine. By using a number of commercially accessible spur gears and bearings a “gear-case” with a 2.0-in. stroke was created to operate with the 2.36-in. bore of the donor motor.

The pair of planetary gear-sets, with the annulus gears held stationary, are joined with a ball bearing mounted link to an opposing pair of planet gears. The link carries a linear bearing connected to a shaft fixed to the shuttle assembly. The shuttle’s motion is then explained by an additional pair of linear bearings traveling on fixed parallel shafts. The shuttle assembly carries the fixed rods and pistons.

This mechanism allows the purely linear motion of the pistons and connecting rods to be transformed to rotary motion by keying one or both output drive shafts to its associated planet carrier to allow one revolution of the output shaft for every cycle of the pistons.

Otherwise, one shaft could be modified to its associated sun gear to provide a step-up drive in the ratio of annulus gear teeth to sun gear teeth and than the shaft could drive a supercharger or generator or to assist a turbocharger.

Check it out!


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