Internal_combustion_engine

Fuel combustion engines should inject gas just at the top of the up-stroke with the valve open, perhaps getting rid of all four strokes. There's no need to lose power by compressing air which adds nothing to the energy (which is totally taken from the fuel, not by compression).

Perhaps I'm missing something, given that the 4-stroke engine's been around at least for 90+ years, but two stokes should be sufficient. Use fuel injection to push the rest of the exhaust out at the top of the last stroke.

Or forget all that and make a continuous combustion engine:

The continuous fuel combustion engine is an optimization of physics applied to motive force. We all know that the ubiquitous "discrete fuel combustion" engine that dominates the hiways. It has pistons that slap back and forth many times a second which translate into circular motion. It runs between 20-30% efficient; with fuel injection, there is a theoretical 50% efficiency possible, but no one has built such an engine. Most of the energy still gets lost via the radiator and exhaust.

A CFC engine can be likened to jet engine, in that one has turbine fins along a cylindrical axis. But the idea is continuous propulsion along the entire length where the explosion expands. Speed is determined solely by fuel rate. RPM are no longer as limited because you're creating a very efficient conversion from outward force to rotary motion -- no changing direction of piston heads. So very efficient. I would estimate that it would be nearly 4x more efficient than current piston engines, and possibly less then half the weight as there's now no need for a transmission. **This design will make every car on the road obsolete. ** (Available for hire.... See me.)

Now take two of those, mount one on each side of a two-wheeled bike, with a direct drive to a double-sided, singly-geared hub. Each turbine revolves towards the center of the bike to prevent (unlikely) resonance that could tear the bike apart. Helical gears on the drive train for continuous, smooth force distribution. No transmission is necessary: fuel flow controls the amount of force and an ignitor to start the combustion from stop to go.

We have a machine that's going to be accelerating and decelerating often. Since were aiming for efficiency, we need a way to transfer power back and forth between the bike mass to the turbines. Consider mechanically transferring forward momentum to a friction-minimized flywheel(s), for braking. and then transferring it back to the turbine to restart.

The flywheel is, if done right, is the only brake. Have it spin in the direction so that emergency stop pulls downward towards the front of the bike, possibly activating a friction bar at the top of the wheel. Front wheel won't lock, as on a normal bike. No need to dissipate power through friction and heat.

Flywheel momentum is a function of mass, speed (rpm), and radius. Mass on the bike for the flywheel is fine as long as it gets transferred efficiently back to the turbine to ready propulsion, speed practicality will be limited to friction, radius is good because mass increases exponentially towards the circumference. Think a cylindrical mass about a foot long made of a heavy metal (uranium tailings?)

Coupling between flywheel and turbines can be direct, straight-line, surface-to-surface clutching.

Question: Put the clutching mechanism at the brakes to transfer power from bike to flywheel, or at the turbine? If at the turbine, it will spin at stop/idle, if at the flywheel it will spin.

For fuel control, a pump will be necessary. Controlled by dual throttles at the handle-bars, one at each hand. The idea for separate throttles for each turbine is to master the bike. The body picks up subtle forces which will inform the rider of the state of each side of power.

Ideal fuel is probably leaded gasoline.

The turbines to drive-train:wheel to braking/flywheel to turbines forms a complete loop-cycle of power maintenance, going up or down, minimizing loss, for a perfect system of motive force.

Thought.... Rim braking will make it easier to stop with less force and wear.

This is part of secret plan to redesign industry. See [Makerspaces].

'''NOTE: These patents pending, joint patent in process with MIT.'''