Scuderi files patent for 'split-cycle' engine

[mechman600]

Originally Posted by drmiller100

This new revolutionary engine looks a whole lot like a Detroit 2 stroke diesel to me.

What do you mean by this? I am well versed in Detroit 2 stroke diesels (piston ported intake, valved exhaust, supercharger necessary for scavenging, direct injected diesel) and this is nothing like that.

Am I missing something?

[drmiller100]

Originally Posted by mechman600

What do you mean by this? I am well versed in Detroit 2 stroke diesels (piston ported intake, valved exhaust, supercharger necessary for scavenging, direct injected diesel) and this is nothing like that.

Am I missing something?

the engine is a 2 stroke.

it does use valves for both intake and exhaust, which is actually a bad thing as it makes for less efficient scavenging.

the supercharger is necessary for scavenging (uses piston supercharger as well as turbo, just like the detroit).

Unless they do something like direct injection or get really precise with sequential timed injection they are going to have troubles with dilution.

[darcane]

Similar engine made by customizing a standard V-twin Ducati:
Ducati V-One – Twin to Supercharged Single Conversion

Includes the air tank between cylinders for storing compressed air. I believe the main difference between this and the Scuderi is that the Ducati is still 4-stroke (though it doesn't explicitly say).

[smokey442]

Did anyone ever notice they never publish BSFC. #s. I spoke with one of their engineers at the SAE conference in D.C. last year. 269grams/KWH Do the math not very impressive. Follow the money trail to congressman Olver. You don't need the prophetic ability of Nostradamas to know that you will never walk into a new car showroom and purchase a vehicle with one of those engines under the hood.

[serialk11r]

^^^
A lot of these "revolutionary" engine designs don't actually deliver on what they promise, or have some obvious and serious drawbacks. Some claim ridiculous things like 50% higher fuel efficiency from 50% friction reduction alone.