Speak for yourself. This post is for those who would like to "Analyze this valve train." I've done the analysis myself and am seeking others to do the same. If you are not interested then change the channel.
How did you draw the conclusion that the ramps require 60 crankshaft degrees each to open and close the valve? Due to the fact the valve remains at peak lift on the "LOBE base circle" for up to 120 crankshaft degrees and is only .08 inches means the ramps will can ground much smaller than in a...
It's already been determined the air injector is incapable of supplying the air needed for proper air to fuel ratio. Now, the air could begin being injected from valve overlap, thru the entire intake stroke and just a few degrees before the fuel is injected during the compression stroke. The...
The fact that the cam lobe is only .08" of lift enables the lobe to be ground with a base circle on it. This means the lobe can be ground to stay at the peak lift for up to 120 crankshaft degrees. It's not difficult to understand. Imagine you take a typical camshaft lobe which has a LCA (Lobe...
There would be NO valve, valve spring, retainers, locks nor the giant port to deliver the air. The air injector would serve the role of the intake valve and port. Just like a direct fuel injector delivers fuel to the engine.
This system allows the camshaft lobe to be reduced drastically. This enables the lobe to be ground with a base circle to keep the valve at peak lift for up to 120 crankshaft degrees. This means the only time all of the valve train components are moving is when the lobes ramp engages with the...
Yes, but notice also that the "primary" rocker has an insanely huge ratio. The end of that rocker also applies force laterally and longitudinally. I suspect a force analysis on this part might show that it requires stronger and/or bigger parts than expected. So the "potential for lighter...
Linear inertia is being traded for rotational inertia, and a lot of it. Think how much effort it takes to slide a pencil along its length, then how much is required to wiggle it from one end. It’s significant higher.
You are overlooking the fact that the pushrod rocker changes the valve rocker...
2. You create extremely high-pressure air to be injected with the fuel at TDC. The first problem is that any compressed air that decompresses without actually pushing the piston will be loss energy. It requires a lot of energy to compress air, losing it will require an even greater efficiency to...