Manson engine's modified as "Metronome"

Hi guys!

I start to make a new engine from my old Manson fan engine on the last weekend.

It was really rusty and it looks like something scrap there.

But the engine base was pretty good condition!

I was lucky!

:)

I took off the fan, also the crank and rod.

Cutted off the tube where was the valve originally.

After I connected to the pipe a 62 cm long

ID: 7 mm tube.

It was the load for the "Metronome" effect.

Do you remember for my earlier post?

Ok!

There is the working method.

Anyway...the engine works well.

The torque is pretty good 

and if I can change the tube with a spiral silicone tube 

then it will be much more compact. 

I need to make a cold side ventillation version

because then the engine could cooling down himself.
And later I can pressurise it!
:)

A weird hot air engine: "Metronome"

My new working office is so busy...sorry!

But the next post will be very interesting for you! :)

My friend Simi112's developed an engine what I called "Metronome".

The engine had a good torque, and the frequency was so stable.

He modified a water piston Ringbom engine.

The water piston is the power piston in a basic Ringbom constructions as you know.

Simi112 changed the pistons, and created a big diameter piston to move the displacer, 
and a smaller one with water in a tube for phase changing.
The engine works well!
(check below the video)

In March of 2014 I've seen an interesting engine on Dreisotech's youtube channel.
He called it Very Simple High Frequency Engine (VSHFE).
This engine is same as Metronome the only different is the phase changer piston,
 because the piston is air here.
This construction is faster than the water piston version.
When I showed the video to Simi112, we start to develope this construction
and we found a little suprise there.
The tube could be tune the engine's frequency
also we can tune up the whole engine to a resonant frequency,
where the amplitude is maximised, and the torque is great!
So this engine is a moving displacer thermoacustic engine too!
What???
How???
Is this possible?

But the cycle is really changed!
Not Stirling as in a Ringbom!

The tube has a greater resistance than the power piston and the engine works closely as a Manson engine.
The tube works like a gas-diode valve.
It looks like a fully open engine, but when the pressure increase in the cylinder, then the gas push out the power piston first, and after can „wide open” the gas-diode.

When the "valve" is "opened", the gas piston  start to move out with a great momentum and created a vacuumised cylinder after start to cool down the gas in the cylinder.
When the inward phase coming and the gas diode "open" again 
then the gas piston create a pressurised section in the cylinder before the gas start to heat up!

It is really interesting and strange.
Because the power piston has an increased power under the whole strokes as like Manson!!!
But when the "valve" is "open" 
then the gas piston pre-vacuumise, also pre-pressurise the cylinder in the working method.

The Manson has only pressure relief sections!

So...we have an engine with Manson cycle (more or less) with a bigger working pressure intervall.

I'll try to show you what I mean about the p-V diagram

Is it real?

What do you mean?

I created a video what's happening in the engine:

My friend Simi112/ Metronome Heat Engine

made videos from his experiments.

Check His Youtube Channel!

Please share this informations!

I hope somebody can help me about the engines p-V diagram,

because I'm not pretty shure in.

It looks like a new thermodinamical cycle

and a NEW hot air engine construction.

See you soon!
BLADE

Rotary Manson ( my old ideas)

Hi all,

here is my new post from my old ideas about rotary type Manson engine.

All engines are on my photobucket profile few years ago, but I share these ideas here now.

Closed cycle regenerative rota-Manson with hot side ventillation:

V 2.0 with tube in tube rotary valve:

Tandem type hot side ventillation rota-Manson engine:

Original cycle rota-Manson engine with inside crankshaft (water pump):

Happy New Year!

New drive control units for my beta type Manson engine

Hello guys!

Two weeks yet and I'll start to build my double cylinder, closed air cycle, beta type Manson engine 

in Transylvania.

Woohoo! :)

I'm so excited!

I had thought about the driving system of this engine this entire weekend, and the conclusion was that it would be made with excentric drive.

But I also developed a new "teeter" drive mechanism for an another beta type Manson engine.

I made for you an animated GIF about this drive control unit:

Also here is my other vision the X-drive mechanism especially for my Manson engines:

And another one...

:)

This is a 3D animation what I made with SolidWorks professional.

I'm a beginner and this is my first animated assembly, 

but you can check how does it work.

I used a simple drive unit, it is pretty nice.

Manson/Ericsson hybrid (Kovács caloric engine)

When I started to optimimise the original Manson engine that was in 2010. 03.

After I built my first hot side ventillation Manson engine with regenerator.

In 2012 I try to make a valveless Ericsson engine and then I had a Heureka feeling! :)

I crossed my two favorite engines in one. 

I called it Kovács caloric engine. (as K.C.E.)

This engine has some typically Manson properties as simplicity, high torque, not much moving part, BETA formation, but the cycle is Ericsson caloric cycle. 

The biggest different between the original Ericsson and my hybrid engine is the numbers of power strokes.

The original engine had one power stroke, when the heated gas expanded.
The other stroke was an exhaust stroke.

My engine has another one!:)

When the pressure dropped down in my engine then pull back the power piston. 

So this is a pretty NEW engine!

My problem wasn't enough money for patent pending.
But it is a "Who cares?" thing.
I shared it, so if you can build one, just do it!
:)

Simple drawing from the engine's two end points:

and an animated how does it works GIF:

I know these are just some schematic drawings, but the working method is simple.

I hope you understand it perfectly.

Exhaust gas recycling (double acting)

Next step: How we can use the exhaust gas for a good performance engine?

I created a double acting cold side ventillation closed cycle Kovács type Manson engine with normal crankshaft.

The engine will be faster and stronger!

Possible to use hot side ventillation too.

Beta type Kovács/Manson engine with regenerator

Here is my new Beta type, cold side ventillation Manson engine in an animated GIF.

The crank is so simple, but works well.

Less friction on the sealed parts as same like Beta Stirling without any gears! :)

The hot side ventillation is possible too as mine first construction.

The engine has regenerator and this construction can work with flywheel or free construction also!

So, if you have enough money, time and tools for this engine, just build it and call itt Kovács Beta type Manson engine. :)

Here is a normal crankshaft version with original Manson cycle ventillation 

and hot side ventillation

New drive control unit for Manson without diameter different.

GREETINGS!

Welcome to my new site!

This blog will show you some tips, tricks, and some new research and development results for hot air engines.

Specially for Manson and Ericsson engines.

I know these hot air engines are not really popular as like a Stirling cycle engines.

Lot of time I heard in the last 6 years: "Manson and the Ericsson cycle engines are was dead end of the hot air engines."

When I asked: Why?

The Ericsson cycle is one of the best caloric cycle.

The Manson engine is one of the highest torque hot air engine.

They has open cycle. 

Is that a problem? Not really! :)

I have new practical inventions for these engines! 

Are you interest it?

Then subscribe my youtube channel (BladeAttila's youtube channel) also follow me on my blog here.

Who am I?

I'm Attila Kovács from Hungary.
Chemical technician and CAD/CAM/CNC operator, also service engineer in the Hungarian TECAN distributor's Ltd.

The hungarian Group of Stirling friends community's leader on a forum also on the facebook.

Few years ago we created an overall hungarian hot air blog with my friend Simi112 (Simi112's channel)

We tried to collect and categorized all of type hot air engines from the last approx. 200 years.

That was a big challenge! :) 

That blog is the biggest, categorized collection of different types hot air engines in hungarian language.

 ( Stirling and hot air engines, hungarian blog )

In this year we start to translate some popular pages to Engish.
That is under construction now! 

Coming soon! 

Be patient!  :)

Sketches from hot ventillation regenerative Manson engine

Regenerator

The original Manson engine hasn't got regenerator, but a small gap between the displacer and the cylinder.

This is a bad regenerative parts, so I tried a simple regenerator in my first engine.

My first engines had hot side ventillation!

Remember, the original engines had cold side inward, and hot side outward breathing.
The Rupp engines had cold side ventillation without regenerator too.

What's the different?

The original engine get cold air from outside, no preheating!
It has slow and bad heat exchange, because the contact surface was small.

I used a steel tube for breathing. It was a preheater also a preregenerator.

The preheated air easier expand when the displacer-regenerator (secondary) move up.

The heat exchange's time shorter, the engine has higher speed, also performance.

The engine has 250 ccm volume, and it was very low budget construction!

Easy to build and so simple with only one self controlled valve.
I know it is useless for real power, but what can produce a professional one...? 

Here is my little boy's firs run, on denatured alcohol burner:

Sketches from this engine HERE!