Company builds 500cc ‘one-stroke’ engine
thedrive.com
Company builds 500cc ‘one-stroke’ engine
1–10 of 66 posts
Re: Company builds 500cc ‘one-stroke’ engine
#2Immediately Installs It in a Miata
Re: Company builds 500cc ‘one-stroke’ engine
#3actually a two stroke, 2 opposing pistons in a common cylinder cycling through compression stroke-combustion-power stroke. no connecting rod to bend or break, and large cams replacing the crankshaft
https://www.thedrive.com/uploads/2023/07/14/innengine-1.gif?...
[Now, here's the thing: this motor isn't a one-stroke engine. It has a compression stroke and exhaust stroke, making it a two-stroke cycle. INNengine acknowledges this and has said that it brands the motor as such because people would assume that a two-stroke engine would need to have oil mixed in along with fuel.]
the goal seems to be a hybrid ehicle that places more duty reliance on electric propulsion, but keeping the long range capabilities of petrol fuel in a combustion-over-electric design.
[adndm] this is 120HP in 500cc displacement, which is superbike engine stuff
Re: Company builds 500cc ‘one-stroke’ engine
#4They admit it's two stroke, but they use that name because they have no oil in fuel and "it's cool".
It's small, lightweight, perfectly balanced but has low torque so it's not a best fit for cars. Would be great for generator.
Re: Company builds 500cc ‘one-stroke’ engine
#5Here's a great deep dive into the engine, explaining the pros and cons: Yes it's simpler and more compact, but the lack of crank shaft means that it doesn't benefit from the lever effect of the shaft so it doesn't have as much torque.
Re: Company builds 500cc ‘one-stroke’ engine
#6They admit it's two stroke, but they use that name because they have no oil in fuel and "it's cool". It's small, lightweight, perfectly balanced but has low torque so it's not a best fit for cars. Would be great for generator.
Considering the negative associations with two-strokes (noise and emissions) it makes sense to try and distance themselves from it if it does not have these properties.
Re: Company builds 500cc ‘one-stroke’ engine
#7They admit it's two stroke, but they use that name because they have no oil in fuel and "it's cool". It's small, lightweight, perfectly balanced but has low torque so it's not a best fit for cars. Would be great for generator.
Would be great for generator.
That was my first thought too -- this design seems simpler and correspondingly less prone to failure than most engines, which would make it well suited for emergency use.
Re: Company builds 500cc ‘one-stroke’ engine
#8Immediately Installs It in a Miata
Re: Company builds 500cc ‘one-stroke’ engine
#9Something to notice in the line drawing: The rear is powered by an electric motor. I assume that's to get it moving in the first place before there's enough momentum for this engine to keep it going.
Re: Company builds 500cc ‘one-stroke’ engine
#10actually a two stroke, 2 opposing pistons in a common cylinder cycling through compression stroke-combustion-power stroke. no connecting rod to bend or break, and large cams replacing the crankshaft https://www.thedrive.com/uploads/2023/07/14/innengine-1.gif?... [Now, here's the thing: this motor isn't a one-stroke engine. It has a compression stroke and exhaust stroke, making it a two-stroke cycle. INNengine acknowl…
Indeed. My old bike had 1400cc and was rated at only 94 hp.