You have commented 339 times on Rantburg.

Your Name
Your e-mail (optional)
Website (optional)
My Original Nic        Pic-a-Nic        Sorry. Comments have been closed on this article.
Bold Italic Underline Strike Bullet Blockquote Small Big Link Squish Foto Photo
Submit your comments on this article
Science & Technology
Superlight micro-engine that weighs just 22lbs and is the size of a BACKPACK
2019-03-13
[MAIL] A hyper-efficient and super-light one-piston engine smaller than a backpack could render modern hybrids obsolete.

Shaul Yaakoby, 53, is the engineer from Tel Aviv, Israel, that developed the engine and claims it is capable of churning out enough horsepower to run a small hatchback for 750 miles (1,200 km) without refuelling.

The engine, manufactured by firm Aquarius Engine, is made of a only a dozen moving components.

MailOnline has obtained data from the firm which reveals the car engine to be 10 per cent more efficient than the average vehicle.

It is now undergoing field tests and the company expects its generator it to be commercially available by the end of 2020 and in cars by 2022.

Mr Yaakoby said its simplicity enables the lightweight design to be so efficient.

'What makes the Aquarius Engine so revolutionary is its simple design, we took the traditional combustion engine that hasn't really been changed in 150-years and we stripped it down to the bare necessities,' he said.

'This means a 10kg [22lbs] engine made up of 20 parts that is more efficient than a 200kg [220lbs] engine made of 200 parts.

'For over a century cars have been carrying around a ton of dead weight that has costed us power and efficiency.
Posted by:Skidmark

#11  
Posted by: Skidmark   2019-03-13 20:59  

#10  I will power a small log sawmill with one or two of these things.
Posted by: Alaska Paul   2019-03-13 19:25  

#9  Sounds like a slightly smaller version of my old VW air-cooled engine. They made some rad dune buggies out of those things.
Posted by: AlanC   2019-03-13 14:02  

#8  All I can think of is a Fiat 500 with a massive Ram-Air Scoop.
Posted by: Mullah Richard   2019-03-13 10:55  

#7  They've been making jet turbines the size of a pickle jar and smaller for a long time. Some of them are almost beer can size. They're nominally for models and experiments, and cost quite a bit.
A Swiss pilot mounted two of them on set of folding wings, and flew in front of reporters for a half an hour. He has since flown the English Channel with his rig.
Posted by: ed in texas   2019-03-13 08:05  

#6  Mazda started using heat resistant ceramic materials for their rotary engines for racing because of heat buildup in rotary engines because of all of the friction and low combustion rate.
Since the micro-engine is such a small, light design it is like an RC model airplane engine.
Light means thin walls and air cooling fins can be close enough to the source of the heat to obviate a water cooling jacket.
Aircraft reciprocating engines from Continental and Lycoming get by with oil cooling because of plenty of air cooling in flight.
These a/c engines have to run at low RPM because of prop drag and are designed for low compression for safety reasons.
Cylinder head temperature is use to lean engine for fuel efficiency up to max CHT allowed to prevent cylinder head damage.
So I am guessing the micro-engine might be able to get by with oil cooling versus water at low output.
But oil cooling would require an oil pump and that would probably require more than 20 parts.
From YouTube link I can see an air fan blowing air across the combustion chamber.

And because the single combustion chamber is split into two sides the effective combustion rate is halved, doubling the amount of time to cool.
Posted by: boomerc   2019-03-13 07:00  

#5  "You can't have airbags or glass, seats, or a spare tire, and the driver must weigh less than 45 lbs. Also, no headwinds"
Posted by: Frank G   2019-03-13 06:59  

#4  Power = Harnessing the Thermal difference.

As Snavimble has said, it'll still need a big radiator to cool it to work.
Posted by: Bright Pebbles   2019-03-13 05:41  

#3  Building a lightweight engine by using exotic heat resistant materials has long been possible, but the cost of the materials made the engine much more expensive that the old cast iron water cooled engines. This article doesn't say how they are solving the cooling problem ?
Posted by: Snavimble Bucket1794   2019-03-13 01:50  

#2  'For over a century cars have been carrying around a ton of dead weight that has costed us power and efficiency.

Heeeyy! Is he tawkin' about me?
Posted by: Almost Anonymous5839   2019-03-13 01:21  

#1  Drones and Robots
Drones and Robots
Drones and Robots
...
Posted by: Skidmark   2019-03-13 00:07  

00:00