The Future of the Internal Combustion Engine Is Camless

[tleach17]

I have been in the diesel engine industry for most of my life, now. This has been the "Next Evolution" for that entire stretch. Every factory training class I have been to since the early 90s has had some sort of mention of the concept, at one time or another. I truly do want to see it evolve. The possibilities for power and efficiency are amazing.

This technology combined with diesel efficiency could really bump the numbers up. I bet you could get a small car close to 80 or 90 mpg or improve an industrial engines fuel consumption by 30% or more. The company I work for is small compared to most and we burn 100k gallons a month during our busiest months. That would be huge savings!


Sent from my iPhone

 

[cRiPpLe_rOoStEr]

I have been in the diesel engine industry for most of my life, now. This has been the "Next Evolution" for that entire stretch. Every factory training class I have been to since the early 90s has had some sort of mention of the concept, at one time or another. I truly do want to see it evolve. The possibilities for power and efficiency are amazing.

Since many medium-duty, and nearly every heavy-duty truck, feature air brakes and air-driven servo-assisted clutch, that would be easy to make this pneumatic valvetrain commercially available. And also the air-starters often fitted to old 2-cycle Detroit Diesels...

 

[PenguinLTZ]

I have been in the diesel engine industry for most of my life, now. This has been the "Next Evolution" for that entire stretch. Every factory training class I have been to since the early 90s has had some sort of mention of the concept, at one time or another. I truly do want to see it evolve. The possibilities for power and efficiency are amazing.

Since many medium-duty, and nearly every heavy-duty truck, feature air brakes and air-driven servo-assisted clutch, that would be easy to make this pneumatic valvetrain commercially available. And also the air-starters often fitted to old 2-cycle Detroit Diesels...

Yeah, easy. What the hell am I thinking?

An air starter is a very simple design, only requiring significant volume and not pressure. Having actually overhauled them on many medium and large bore diesels, I have no clue how you relate this to an actuator for a valve train component.

The most common pressure setting on the American class 8 truck is 120 PSI, as regulated by the D2 governor.

120 psi is not going to be the equivalent of the several thousand PSI it takes to do what a HEUI injector actuator achieves currently.

 

[daddy]

I have been in the diesel engine industry for most of my life, now. This has been the "Next Evolution" for that entire stretch. Every factory training class I have been to since the early 90s has had some sort of mention of the concept, at one time or another. I truly do want to see it evolve. The possibilities for power and efficiency are amazing.

Since many medium-duty, and nearly every heavy-duty truck, feature air brakes and air-driven servo-assisted clutch, that would be easy to make this pneumatic valvetrain commercially available. And also the air-starters often fitted to old 2-cycle Detroit Diesels...

Yeah, easy. What the hell am I thinking?

An air starter is a very simple design, only requiring significant volume and not pressure. Having actually overhauled them on many medium and large bore diesels, I have no clue how you relate this to an actuator for a valve train component.

The most common pressure setting on the American class 8 truck is 120 PSI, as regulated by the D2 governor.

120 psi is not going to be the equivalent of the several thousand PSI it takes to do what a HEUI injector actuator achieves currently.

Damn, Penguin, there's no need to hurt the poor kid.

You really should find a way to make money with that knowledge!

 

[PenguinLTZ]

I just love diesel posts.



You know I usually keep my trap shut about diesels. They stink.

 

[cRiPpLe_rOoStEr]

An air starter is a very simple design, only requiring significant volume and not pressure. Having actually overhauled them on many medium and large bore diesels, I have no clue how you relate this to an actuator for a valve train component.

I was relating to the on-board air supply

 

[PenguinLTZ]

Jolly good.

 

[99 4X4 5.3]

Maybe in the future there won't be intake valves either, Have an injector that does fuel and air together and have just one large exhaust valve per cylinder.

 

[The_Chupacabra]

Maybe in the future there won't be intake valves either, Have an injector that does fuel and air together and have just one large exhaust valve per cylinder.

What happens when that injector fails and there is no air to be sucked in by the piston, does it just suck the head in and blow up


Oh and HOLY THREAD RESURRECTION!

 

[mr_bots]

I don't think they do that for air. It would take too much energy to move that much air and a hell of an injector to be able to move that much volume. If they did and then if and when it fails nothing would happen. AFM disables the valves and injectors on half the engine and all eight pistons move up and down just fine.