Variable diameter nozzle
Posted by ingpconci
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Variable diameter nozzle December 01, 2015 05:25PM |
Hi , I would like to design and manufacture a variable diameter nozzle as a open source hardware project.
The idea is to replicate the mechanism of the four jaw cork compressor.
To build the microscopic jaws I use the MEMS technology.
In the pictures you can see what we can realize with this top-down technology:
"Courtesy Sandia National Laboratories, SUMMiT™ Technologies, www.sandia.gov/mstc"
I would like to ask to the community if my idea is interesting.
I'd appreciate suggestion and comments
Kind regards
Paolo
The idea is to replicate the mechanism of the four jaw cork compressor.
To build the microscopic jaws I use the MEMS technology.
In the pictures you can see what we can realize with this top-down technology:
"Courtesy Sandia National Laboratories, SUMMiT™ Technologies, www.sandia.gov/mstc"
I would like to ask to the community if my idea is interesting.
I'd appreciate suggestion and comments
Kind regards
Paolo
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Re: Variable diameter nozzle December 02, 2015 01:40AM |
The silicon micromachining technology was used in several devices, ink jet printing and other.
For example in a StartJet molten metal nozzle chip, where the chip operate at 350C.
Ref:
Molten Jet Nozzle
The thermal conductivity is very good and the silicon MEMS technology can benefit form from the batch fabrication in large arrays.
For example in a StartJet molten metal nozzle chip, where the chip operate at 350C.
Ref:
Molten Jet Nozzle
The thermal conductivity is very good and the silicon MEMS technology can benefit form from the batch fabrication in large arrays.
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Re: Variable diameter nozzle December 21, 2015 09:14AM |
To reduce the thermal effect on the nozzle we can use a connecting rod.
The heat flux for an AISI 304 connecting rod (diameter 1 mm,lenght 40mm, dT=200C) is < 0.1 W.
The heat flux for an AISI 304 connecting rod (diameter 1 mm,lenght 40mm, dT=200C) is < 0.1 W.
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Re: Variable diameter nozzle January 14, 2016 09:26AM |
I think an extruded area in the center of the nozzle.
Have you some suggestion about the H and L dimension?
What is the minimum acceptable values for H?
Have you some suggestion about the H and L dimension?
What is the minimum acceptable values for H?
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Re: Variable diameter nozzle July 12, 2016 12:47PM |
We have applied to Create The Future Design Contest 2016
You can vote for it in the contest website
Design Contest 2016
You can vote for it in the contest website
Design Contest 2016
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Re: Variable diameter nozzle March 05, 2017 02:01AM |
Just a quick picture of a variable nozzle size with two pinch discs.
Edited 1 time(s). Last edit at 03/05/2017 02:02AM by tgit23.
Edited 1 time(s). Last edit at 03/05/2017 02:02AM by tgit23.
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