E-REX 1 stroke engine (yes 1 stroke!)

[premmington]

Chuck this into the mix...

 

[Pigeon_Droppings2]

I think I read their 125cc test engine pushes out 20bhp+

Wonder if they'll docs on applications where the power to weight is a big advantage.

 

[8ob]

The swash plate engine isn't new, this has been done before , the only difference with this one is the opposing pistons. As with the other swash plate style engines my concerns would be with the longevity of this type of engine, that piston with the roller on the base is seeing a lot of side thrust travelling up and down that bore.

Bob

 

[Pigeon_Droppings2]

@8ob ....I had the same thought too. I was wondering if they've done something smart at the base of the piston to spread the power stroke maybe.

If they can genuinely get the power of a 2l conventional engine from an engine weighing 40kg I think that has my interest (unless I've gotten that wrong!)

 

[8ob]

A few variants of the same thing.

Axial Internal-Combustion Engines.

Douglas Self, Axial Internal-Combustion engines, Smallbone engine, Macomber engine, Statax engine, Michell engine, Almen engine, Laage engine, Nedoma-Najder engine, Ali engine, Bristol axial engine, Sparost Cam Engine, Alfaro engine, Wooler engine, Dynacam Engine

www.museum.alibaba.sk

Bob

 

[premmington]

A few variants of the same thing.

Axial Internal-Combustion Engines.

Douglas Self, Axial Internal-Combustion engines, Smallbone engine, Macomber engine, Statax engine, Michell engine, Almen engine, Laage engine, Nedoma-Najder engine, Ali engine, Bristol axial engine, Sparost Cam Engine, Alfaro engine, Wooler engine, Dynacam Engine

www.museum.alibaba.sk

Bob

Subject interests me...

(good link @8ob

 

[premmington]

I think I read their 125cc test engine pushes out 20bhp+

Wonder if they'll docs on applications where the power to weight is a big advantage.

So did an unrestricted RD125LC in 1983

1986 Yamaha RD125LC

Motorcycle Specifications Overviews and Road Tests

www.motorcyclespecs.co.za

 

[8ob]

Subject interests me...

(good link @8ob

When you look at the dates some of these engines were made it does make you wonder why it’s taken so long to revisit the idea‘s. Must be a patents office nightmare, the only “innovation“ I can see on this new engine is the cleverness to vary compression while running, it’s a tweak at best.

Bob

 

[mtt.tr]

I liked the idea - when I watched the youtube vid'

I just can't see how it is gonna lubricate itself...

And this is the problem with two strokes - lubrication...

Rotary engines also suffer with lubrication issues.

I posted already I think the swash plate will be horrifically inefficient

 

[8ob]

I posted already I think the swash plate will be horrifically inefficient

I was thinking the same, to transfer the power efficiently the ramp down would need to be very steep, that would probably kill the roller and side load the piston to destruction. May be ok as a screaming short stroke with a soft ramp on the swash plate.

Bob

 

[Misterg]

I think that side thrust can be dealt with (compare with tappets, etc.). IMHO the key problem that the design faces is the contact between the rollers and the swash plate - with a roller against a disk, there is a spinning component to the relative movement (like stubbing out a cigarette) which causes horrendous lubrication & wear problems - it's the Achilles heel of all sorts of continuously variable transmission schemes.

 

[Pigeon_Droppings2]

I was thinking the same, to transfer the power efficiently the ramp down would need to be very steep

I was wondering whether they'd come up with something clever in the piston base maybe to dampen the force on the swash plate. It's difficult to say because I guess they don't want to give too much away about what they've done.

 

[Morris]

History is littered with attempts at redesigning the ICE, either parts or the whole thing. They all seem to end up being forgotten after the initial promises prove to be somewhat speculative. Even the Wankel, arguably the best alternative to the piston engine had a very long journey to reliability and it never got past a niche market.
I will not be investing my money.

 

[Morrisman]

When you look at the dates some of these engines were made it does make you wonder why it’s taken so long to revisit the idea‘s. Must be a patents office nightmare, the only “innovation“ I can see on this new engine is the cleverness to vary compression while running, it’s a tweak at best.

Bob

May have been mentioned already, but it's still an 'internal combustion engine' thus it can't be put on the road after 2030.

 

[8ob]

May have been mentioned already, but it's still an 'internal combustion engine' thus it can't be put on the road after 2030.

I can see a U turn on the horizon, I don't think the 2030 is realistic when you consider the state of the UK`s power generation and infrastructure.
This unit will probably be targeting the onboard independent recharging of leccy cars, I don't think it's ever going to directly drive a vehicle.

Bob

 

[Pigeon_Droppings2]

I can see a U turn on the horizon, I don't think the 2030

Banning the sale of ICE will do very little to address the pollution from the existing cars on the road....it'll take time to make a difference.

I think I've said this before...politicians should make the rules regarding emissions....then leave engineers well alone to pursue a solution to meet the emissions objective. If the sensible answer is electric...fine!...but the answer could well be ICE + synthetic carbon neutral fuels, a combination of the two or something else entirely!

There's a history of politicians meddling and the end result is usually not great....like when they decided we should all buy diesel cars!

 

[Morrisman]

There's a history of politicians meddling and the end result is usually not great....like when they decided we should all buy diesel cars!

My 2012 Mondeo diesel is £30 a year 'tax' because it was going to save the planet....

Did politicians scientists really just 'discover' how utterly deadly diesels are, and go full circle to want them banned, in less than ten years?

 

[mtt.tr]

Banning the sale of ICE will do very little to address the pollution from the existing cars on the road....it'll take time to make a difference.

I think I've said this before...politicians should make the rules regarding emissions....then leave engineers well alone to pursue a solution to meet the emissions objective. If the sensible answer is electric...fine!...but the answer could well be ICE + synthetic carbon neutral fuels, a combination of the two or something else entirely!

There's a history of politicians meddling and the end result is usually not great....like when they decided we should all buy diesel cars!

Just not burning sequestered fuel would be useful, we will never have any means to store carbon so efficiently


At the very least what we create in co2 for instance without burning fossil fuels can be returned into trees or the bio fuel crop

 

[R Kraft]

Tough to come up with something that hasn't been thought of {at least twice}.

Axial Internal-Combustion Engines.

Douglas Self, Axial Internal-Combustion engines, Smallbone engine, Macomber engine, Statax engine, Michell engine, Almen engine, Laage engine, Nedoma-Najder engine, Ali engine, Bristol axial engine, Sparost Cam Engine, Alfaro engine, Wooler engine, Dynacam Engine

www.douglas-self.com

 

[Seadog]

Available materials, at the time, limited the scope of these designs.