The next attempt, using a natural rubber diaphragm with a printed diaphragm mount, was an instant success!
The thermoacoustic motor ran faster than ever before, at over 2600 rpm.
But the best thing is that, for the first time, the motor can start up on its own!
This simplifies the upcoming pressure charging process enormously, and I will now be working intensively on it.
To achieve this, the motor must be made completely airtight, and the rear of the membrane must be sealed with a buffer chamber featuring an integrated linear generator.
I intend to construct the entire new feedback loop using 3D-printed parts with clamp flange connections.
In any case, many more tests with different membranes still need to be carried out to optimally achieve the resonance frequency.
I’m always very grateful for any tips on this.
Here’s a video link to the new membrane power extraction core:
Leave a Reply