Metronome engine question

Discussion on Stirling or "hot air" engines (all types)
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Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Metronome engine question

Post by Crazyguy » Tue Mar 01, 2016 8:31 am

This question is for those who have metronome Engine experience.
Q: Am I right in thinking that the heavier the displacer is (plus magnet) , the longer the hose has to be?
I would like to make some with linear alternators on the displacer shaft.
Q: Also can the hose be vertical (straight up) ?

I have only gotten the water piston version to work ( pringles can version) thanks to mrsamodelkin and it doesn't go fast.

tibsim
Posts: 34
Joined: Thu Dec 31, 2009 8:54 am

Re: Metronome engine question

Post by tibsim » Tue Mar 01, 2016 1:46 pm

Q: Am I right in thinking that the heavier the displacer is (plus magnet) , the longer the hose has to be?
Yes.
Q: Also can the hose be vertical (straight up) ?
Yes.
"I have only gotten the water piston version to work ( pringles can version) thanks to mrsamodelkin and it doesn't go fast."
Engine is much better with air.

Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Re: Metronome engine question

Post by Crazyguy » Tue Mar 01, 2016 2:15 pm

@tibsim
Thank you.
I also think I may try magnet springs , might work to counter balance mass of magnet.
Thanks for speaking English, I appreciate it. I am only a one language person. Need to use google translator.

Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Re: Metronome engine question

Post by Crazyguy » Tue Mar 01, 2016 3:33 pm

@tibsim
It looks like the displacer has to be denser than most stirlings to assist to compress and rarify the air in the gas diode ?
Also more close fit to the cylinder?
What do I need to do to get the shortest hose? Smaller diameter?

Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Re: Metronome engine question

Post by Crazyguy » Wed Mar 02, 2016 4:35 am

Two things.

The hose on the metronome could be the long pre- coiled plastic air hose like the picture below.
Image


Question:
1. Could the long hose be replaced by a short pipe connected to a diaphram/ membrane to save space?

Here's my plan.
Image

tibsim
Posts: 34
Joined: Thu Dec 31, 2009 8:54 am

Re: Metronome engine question

Post by tibsim » Fri Mar 04, 2016 2:21 pm

First engine always must be perfect same than description.
http://stirlingtechnology.blogspot.hu/2 ... m-gep.html

Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Re: Metronome engine question

Post by Crazyguy » Fri Mar 04, 2016 3:05 pm

?

Crazyguy
Posts: 61
Joined: Sun Jun 07, 2015 10:39 am
Location: USA

Re: Metronome engine question

Post by Crazyguy » Sun Mar 13, 2016 12:09 pm

Does anyone think this would work so there wouldn't be such a long hose?
Image

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