cancel
Showing results for 
Search instead for 
Did you mean: 

New car engine design - twice as efficient - perhaps

Community Veteran
Posts: 38,244
Thanks: 933
Fixes: 54
Registered: 15-06-2007

New car engine design - twice as efficient - perhaps

http://phys.org/news/2016-10-israel-firm-super-efficient-power-car.html

The invention from Israeli-based Aquarius Engines is currently being discussed by France's Peugeot, the firm said.
Aquarius says the cost of the engine will be as low as $100 (92 euros).
According to the firm, the engine can allow cars to travel more than 1,600 kilometres (990 miles) on a single tank of fuel, more than double current distances.
Such efficiency is vital as countries seek to reduce carbon dioxide emissions—a main cause of climate change. Car engines are a major source of CO2 emissions.
Aquarius's technology works by stripping back the traditional engine under the bonnet.
It replaces the combustion engine with its multiple pistons thrusting up and down with a single piston that goes side-to-side.
It has fewer than 20 parts and a single action, the company said.
In tests by the German engineering company FEV, the Aquarius engine's efficiency was more than double that of traditional engines.

A bit more detail http://www.haaretz.com/israel-news/business/1.730629.

23 REPLIES
Community Veteran
Posts: 16,825
Thanks: 1,114
Fixes: 13
Registered: 06-11-2007

Re: New car engine design - twice as efficient - perhaps

Reading through the second linky, it appears to me, that this is not a "new engine"  to replace the existing engines in cars and other vehicles.... rather it is a more simple and efficient additional "generator" of electric power to recharge the batteries of hybrid cars, ...

 

However, it does have potential to replace the "big lump" for all electric vehicles, by providing them with an "on board charging system".. as the technology develops.


The final parts of that second linky seem to indicate that the major players have all rejected the idea, apart from Puegot, who have probably got a "vested interest" in further development, which they will fund partly, and be able to "dump" as and when, in the future, or continue with development.

 

Community Veteran
Posts: 4,595
Thanks: 750
Fixes: 3
Registered: 06-11-2014

Re: New car engine design - twice as efficient - perhaps

The design of that engine looks very old, as in, 19th century old, back when I/C engines were single cylinder lumps with a lone piston that went side to side, re-inventing the wheel springs to mind.......... Funny

Community Veteran
Posts: 7,910
Thanks: 589
Fixes: 8
Registered: 02-08-2007

Re: New car engine design - twice as efficient - perhaps

Anyone remember the wankel engine used in mazda cars, that had less moving parts as the standard engine.

There are some good youtube videos showing the simple construction of this engine but it never caught on, due I think to some problem with the seals.

 

Community Veteran
Posts: 4,595
Thanks: 750
Fixes: 3
Registered: 06-11-2014

Re: New car engine design - twice as efficient - perhaps

There's still some cars that use the Wankel Rotary, the main reason they were popular is because people loved the "high revving sound" they made, personally I'd just be happy with the twinpot from a 2CV or a Honda motorbike... Grin

Community Veteran
Posts: 2,556
Thanks: 171
Fixes: 2
Registered: 27-05-2011

Re: New car engine design - twice as efficient - perhaps

@Oldjim both confused articles written by reporters rather than engineers so some of the new facts are old and it's difficult to see what if anything might be patentable.

My first problem is that one of the reasons for multiple cylinder engines is to balance forces and couples so a single cylinder is inherently unbalanced and would run very rough.

Second a main design concept which is supposed to benefit hybrids is not using the IC engine to deliver torque to the wheels so the engine can be optimised for thermal efficiency. So this company has not invented anything, all engines on hybrids would expect to deliver improved efficiency of the scale proposed.

next I don't see that simplicity is going to deliver on such issues as emissions. If they were we would still have VW's boxer engines or The 2CV engines still in production.

 

I won't be investing. Crazy2

To do is to be - Neitzsche
To be is to do - Kant
do be do be do - Sinatra
Community Veteran
Posts: 2,282
Thanks: 218
Fixes: 1
Registered: 04-08-2009

Re: New car engine design - twice as efficient - perhaps

The basic difference is that horizontal or vertical motion is not converted to rotary motion and then transmitted to the wheels or to a rotating generator. Instead the cylinder movement induces sufficient voltage in electromagnetic coils placed near to the cylinder to produce power. This doubles the efficiency of the engine compared to a standard petrol engine. It is known as a free-piston engine.

And nobody has yet competed assessment work on the engine. According to http://www.greencarcongress.com/2016/07/20160721-aquarius.html .... written in July 2016..

A number of groups have recently or are currently investigating the use of free piston engine power generation applications with a focus on automotive, including academic work at West Virginia University (WVU), Sandia National Laboratory (SNL), Chalmers University of Technology (Sweden), and Shanghai Jiaotong University.

A team from Toyota Central R&D Labs is developing a prototype 10 kW Free Piston Engine Linear Generator (FPEG) featuring a thin and compact build, high efficiency and high fuel flexibility. Toyota envisions that a pair of such units (20 kW) would enable B/C-segment electric drive vehicles to cruise at 120 km/h (75 mph).

Aquarius, founded in 2014, has already filed three patents; the company raised $8 million in five days in the first funding round. As outlined in one of its patent documents, the company is proposing a new cycle process—the Aquarius cycle—as well as the new free-piston engine.

So the essence of Jim's post is quite correct!  Crazy

 

Community Veteran
Posts: 5,335
Thanks: 607
Registered: 23-09-2010

Re: New car engine design - twice as efficient - perhaps


twocvbloke wrote:

The design of that engine looks very old, as in, 19th century old


Looking at the pictures I couldn't figure out where they shovelled the coal in.

Community Veteran
Posts: 2,556
Thanks: 171
Fixes: 2
Registered: 27-05-2011

Re: New car engine design - twice as efficient - perhaps

@gleneagles the reason for the Wankles lack of success, which your quoted seal problem was one example, was the lack of years of development that has gone into traditional reciprocating engines. If we had persevered for another 100 years the Wankle might have matched traditional engines in development an specialist machine tools. That's why this company can't find a taker for its disruptive technology. We've seen it all before Lips are sealed,

To do is to be - Neitzsche
To be is to do - Kant
do be do be do - Sinatra
Community Veteran
Posts: 4,595
Thanks: 750
Fixes: 3
Registered: 06-11-2014

Re: New car engine design - twice as efficient - perhaps


billnotben wrote:

Looking at the pictures I couldn't figure out where they shovelled the coal in.


 

Reciprocating engines like this "new" one were first created in the 19th century, often using adapted steam engines, so, nowhere to put the coal, just somewhere to feed the old town gas or peanut oil into it... Crazy

Community Veteran
Posts: 2,282
Thanks: 218
Fixes: 1
Registered: 04-08-2009

Re: New car engine design - twice as efficient - perhaps


PeterLoftus wrote:

@gleneagles the reason for the Wankles lack of success, which your quoted seal problem was one example, was the lack of years of development that has gone into traditional reciprocating engines. If we had persevered for another 100 years the Wankle might have matched traditional engines in development an specialist machine tools. That's why this company can't find a taker for its disruptive technology. We've seen it all before Lips are sealed,


You might like to read my post just above yours. This engine IS being developed quite extensively.

Community Veteran
Posts: 2,556
Thanks: 171
Fixes: 2
Registered: 27-05-2011

Re: New car engine design - twice as efficient - perhaps

@nozzer the problem as stated in OJ's original post was that they were trying to find a major car manufacturer to take an interest. By what I read Peugeot were been non committal as well and they were their best chance. 

 

On the roadmap I have seen for road car development, hybrids are just a transitional solution between internal combustion engines and fuel cells and pure battery solutions. That's why I think they won't put big bucks into this interim solution. 

To do is to be - Neitzsche
To be is to do - Kant
do be do be do - Sinatra
Community Veteran
Posts: 2,282
Thanks: 218
Fixes: 1
Registered: 04-08-2009

Re: New car engine design - twice as efficient - perhaps

So Toyota don't count then?

Community Veteran
Posts: 2,556
Thanks: 171
Fixes: 2
Registered: 27-05-2011

Re: New car engine design - twice as efficient - perhaps

What's Toyota got to do with it! They are developing something of their own and not buying into the development described and theirs will probably go back on the shelf when the find out what the want to know Cool smiley

To do is to be - Neitzsche
To be is to do - Kant
do be do be do - Sinatra
Community Veteran
Posts: 4,595
Thanks: 750
Fixes: 3
Registered: 06-11-2014

Re: New car engine design - twice as efficient - perhaps


nozzer wrote:

So Toyota don't count then?


 

Nope, connecting a battery to a motor doesn't really make someone innovative... Smiley